All tools

OneSource unifies blockchain data behind a single agent-native API. Ask in natural language or REST, pay with x402, MPP, or use an API key.

BlockRun lets AI agents use money well: pay for results, not for seats or subscriptions, and put every cent on the model or tool that actually does the job.

Pay-per-request utility APIs powered by x402 using USDC on Base.

x402 Atlas provides real-time x402 analytics for autonomous APIs on Base. Track transactions, discover trends, and analyze the x402 ecosystem.

Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions.

Search API for AI agents that need real-time web data, deep research, and structured content from one endpoint. Try our API for free.

Discover an endpoint, pay with x402 and verify its result and receipt.

This tool reads live information from Hacker News, a popular website where people share and discuss technology news. You can either ask for a current list of stories (like the Top, New, Best, Ask, Sho

Run402 is open-source backend infrastructure for AI agents and coding agents. Provision Postgres, auth, storage, serverless functions and static/SSR hosting through the CLI, with a typed SDK for scripting and MCP for…

Live paid services for AI agents: notarization, anomaly detection, disruption intel, travel, voice, market signals, image generation. Pay per call from $0.001 over x402 or MPP. No accounts, no API keys.

Nine live x402 APIs for AI agents: web access, token safety, chain data, search, video, transaction simulation. Pay per call in USDC on Base, no API key.

Pay-per-upload file hosting. Upload files, get a link.

Software that outlives its owners. Permanently funded compute: corpusAI deploys your service from GitHub, and one USDC deposit funds it. The principal is never spent; its yield pays the compute bill.

Trade everything onchain with AI, powered by 500M+ labeled addresses. Track Smart Money, analyze any token, and execute instantly - all in one place.

Thousands of tools to automate your business. Get real-time web data, track competitors, generate leads, and integrate your apps and AI agents.

Bitrefill (United States) - Shop for Gift Cards, eSIMs, and Mobile Recharges with BTC, ETH, USDT, USDC, and more. Pay online with crypto in over 186 countries.

Publish your API to Pocket Network and get paid on-chain for every request from AI agents and MCP clients. Build with Claude, deploy with PSM4Win, list on the Agentic Portal.

Open-source infrastructure for the agent economy. Hire developer services over x402 or build with the Cult OS stack and Virtuals ACP.

One remote endpoint gives your agent live data from Twitter, Reddit, the open web, GitHub and more. No API keys, no scraping stack - just connect the URL and go.

HALOWERK provides paid endpoints that AI agents call and pay for per request via x402 on Base. No account, no API key, no signup.

nsgoods is a suite of twelve x402 pay-per-call APIs for AI agents on Base + Solana: crypto signals, agent trust, OFAC sanctions + malicious-address screening, multi-chain OFAC SDN screening (Solana-settled), market…

Evidence-backed tokenized treasury yields and measured cross-chain USDC settlement costs. Measured figures include observations, sources and issuer comparisons where available.

Prove your AI followed the rules — without exposing your models or data. TenPrint creates tamper-evident, independently verifiable audit trails for every AI decision.

Find paid APIs for a task and check an endpoint before paying. Agents Trust returns API URLs, pricing, reliability, delivery evidence and risk flags.

Give your AI agent one account for thousands of paid APIs and data sources, billed per call with no separate subscriptions or keys.

20 monetized x402 APIs for AI agents — crypto, DeFi, on-chain data, prediction markets, weather, and web search. No API keys, no signup — pay per call in USDC.

Per-minute Hyperliquid market history: open interest, candles, trades, liquidations, HIP-3, spot and outcome markets. Query any window, pay per request over x402.

Real-time Twitter/X data for AI agents. No sign-up, no API keys. Pay per request in USDC on Base via x402. Fully autonomous.

Eleven pay-per-call APIs for the decisions an agent cannot afford to guess. Base or Tempo payments, evidence with every answer, and no charge for a failed call.

EUR-native facilitator for AI agent payments. x402 (Coinbase) and MPP (Stripe/Tempo), USDC to EUR via SEPA Instant. KYA trust scoring, MiCA-aligned. Check your site in 60 seconds, then make it agent-payable.

Agentic Finance for AI agents: 500+ pay-per-call tools, metered models and finished reports over x402 and MPP, or by card. No signup, no API keys.

Buy discounted Venice AI API credits with card or USDC. Discounts grow throughout the day, subject to availability. Same-Day Credits expire at midnight UTC.

x402node — precise, deterministic developer and data tools for AI agents. Chain data, parsing, crypto, conversion. Pay-per-call over x402, settled in USDC on Base.

Aidress lets agents discover, verify, and transact with counterparties they have never met, without a human in the loop.

View top cryptocurrency prices live, crypto charts, market cap, and trading volume. Discover today’s new and trending coins, top crypto gainers and losers in the market.

Pay-per-request access to flights, award availability, hotels, activities, and transfers. No auth, no subscriptions.

Top cryptocurrency prices and charts, listed by market capitalization. Free access to current and historic data for Bitcoin and thousands of altcoins.

botsmith makes small, well-made software: market data that AI agents pay for per call (x402), a terminal client for Polymarket, a free place to try AI models, and a skill manager for coding agents.

Who paid which call — export, policy, evidence. Possession book for agent spend.

Programmatic access to Arkham wallet intelligence and market data — via API keys and x402 pay-per-request.

One skill for your agent to search, discover, and pay for any service. No endpoint hunting. One unified payment rail for everything. Minimal token usage.

Turn agent traffic into revenue. Charge AI agents per request for your API — live in minutes, no accounts, no API keys, no paperwork.

Skip the groundwork with our AI-ready Web Search APIs, delivering advanced search capabilities to power your next product.

The execution layer for AI agents. Hand OneShot a goal and a budget: it calls, mails, waits and retries for months until it is done, with 117 tools.

Practical services your AI assistant can use to get things done. Explore examples, prices, setup and agent referral earnings.

ScalpStream builds pay-per-query data APIs for AI agents over x402: fuel prices, air quality, US border waits, product recalls and market research.

Ausca is infrastructure agents can buy: metered APIs and MCP services without accounts or provider API keys, with explicit pricing and verifiable receipts.

Pay-per-generation AI image and video creation. No subscriptions ever.

Tavily is the real‑time search engine for AI agents — Fast and secure APIs for web search and content extraction.

Minifetch is a hosted toolkit for web developers and the AI agents who work for them. Always pay-per-fetch, no subscription.

Tenjin is the tool router for coding agents. Install it once, and it hands your agent the right tool when it helps, paid from one wallet.

125 production APIs behind HTTP 402 micropayments. 87 LLMs, Kling V3 and Hailuo video generation, image generation, code execution, travel search, web scraping, TTS, and transaction simulation.

AgentPay is the economic intelligence layer for MCP servers and AI agents. Hard budget caps enforced at the payment layer. Cost awareness before every call. Full session receipts. 20 tools, 17 free.

Buy the cheapest inference. Sell your credits. The open order book for AI models. Up to 90% off Claude Opus 5.5, GPT 6 Astra, and more.

Privacy-focused AI powered by Venice.ai. Free to try, PAYG, No subscription, No data retention.

Explore the x402 ecosystem. View transactions, sellers, origins and resources. Explore the future of agentic commerce.

Blocksize aggregates crypto and tokenized stock prices from 70+ exchanges, publishes into eight oracle networks and delivers the same feeds through one API.

Stealth web rendering, structured extraction, domain search, and multi-source research. Pay per request with USDC on Base. Built by agents, for agents.

The next visitor to your site will be an AI agent. ZeroClick turns any API or offering into an agent-purchasable service with x402 & MPP support, a machine-readable storefront, and agent transaction analytics.

Real-time crypto market data for autonomous agents: perpetual derivatives (funding, open interest, basis), liquidation clusters, multi-exchange spot prices and Deribit options. Pay per call in USDC on Base via x402.

An evidence observatory for agentic commerce: preflight an x402 endpoint before paying, free conformance checks on the receipt after, a Bitcoin-anchored corpus.

Problocks payment infrastructure for AI agents and APIs. Explore per-call billing, usage metering, and payment integration for your services.

Agent-ready workflows, MCP servers, x402 and MPP payment routes, and machine storefronts. Bounded scope, working code, tests, and deployment handoff.

Onchain data you can trace to the block, used by Visa, Coinbase and BCG. 10,000+ protocols. SOC 1 and SOC 2 Type I and II.

OpenVerbs is a catalog of small, single-purpose HTTP tools for AI agents. Each does one job on its own subdomain and is paid per successful call in USDC on Base. No accounts, no API keys. Pay as you go.

Create images, videos, and voice content with Higgsfield AI from text prompts or references. Edit and upscale media, automate creative workflows with its AI agent, and generate content on web and mobile.

Fizzl makes it safe for AI agents to pay: a wallet that checks every payment before it is signed and every paid answer after it, and four live pay-per-call x402 services. Try them free on the page.

Send a wallet and a condition, get a signed yes or no. Wallet auth on 37 chains for apps and AI agents. Boolean, not balance. Free API key in seconds.

Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.

Phone, email, compute, domains — paid with USDC via x402. Give your AI agent superpowers.

Pay-per-session browser automation. Control a real browser with AI.

Web search built for AI agents. Search the live web, pull recent news, and read any page as clean markdown — pay per call, free tier to start.

41 agent tools over MCP and x402: signed compliance, market and on-chain decisions, a professional EU counterparty dossier, a free deterministic tool router, and three fixed-price LLM tiers. Ten tools are free;

Pay-per-call AI services for agents and builders. Kronos crypto intelligence, AI image generation, and ForgeMesh Travel Agent. No API keys. Base mainnet.

News content licensing for information platforms and AI developers. License curated, rights-cleared content from 1,600+ vetted, human-reviewed publishers.

Connect your agent to web search, scraping, and enrichment APIs through one account. Use the unified API, MCP server, or CLI, and pay for the calls you make.

ip402.xyz is a paid IP geolocation & ASN API for agents. One IP in, normalized geolocation out, settled per call over HTTP 402 — x402 on Base & Solana plus Tempo MPP. No accounts, no API keys.

Live, x402-native services for AI agents: market data, token safety, agent identity, staking & reputation, tool reliability scores, hallucination checks, and payment rails.

Baton is pay-per-call storage, handoff, and cryptographic proof on Relaystation. An agent signs one USDC payment and gets a result — no account required — or a developer signs in, tops up, and uses an API key.

Pay-per-call stock, crypto, DeFi data + AI-powered analysis via x402 micropayments. No API keys. No subscriptions. No sign-up.

Mycelia Signal delivers real-time, cryptographically signed data to AI agents and autonomous systems over HTTP.

OpenAI-compatible LLM gateway at $0.005/call — change base_url, pay in USDC. Plus pay-per-call market data: multi-oracle price consensus, sentiment, forex, equities, commodities, Brazil macro (BCB/B3) and crypto.

Infrastructure that makes Solana usable by autonomous software. Read, Write, Pay, Onramp — one unified stack for agent builders.

Text-to-image API with style presets that hold across a whole campaign. Client-ready renders, hosted URLs, commercial licence on every image.

Trust, reputation & reliability scores for x402 endpoints. We monitor every listed x402 service 24/7: uptime probes, 402-envelope compliance, price history, and real on-chain USDC settlement volume.

Frontier models at market price on one OpenAI- and Anthropic-compatible endpoint, paid in USDC. Gondola never stores prompts; idle Venice DIEM earns USDC.

Onchain intelligence API for Solana agents and LLMs. 50 endpoints: wallet profiling and risk scoring, token due diligence with holder concentration and slippage, whale and smart-money tracking, cross-venue perps market…

Get the most recent news articles relating to a stock ticker symbol, including a summary of the article and a link to the original source. Can't find what you're looking for? POST feedback to /feedbac

Run code in 40+ languages via x402 USDC micropayments on Base. Isolated sandboxes, sub-second latency, no accounts.

HumanMirror est le control plane des agents autonomes : décision avant action, preuve après exécution, routage machine et gouvernance de flotte.

Real-time cryptocurrency market cap rankings, trading charts, and more.

Credit infrastructure for AI agents. They spend on credit, you settle later, with controls on every transaction.

The conformance scanner for x402 sellers — SSL Labs for x402. 25 checks across your protocol surface, agent docs, and directory standing return an A–F grade with per-check evidence and fixes.

Market data for AI agents, pay per call with x402: token safety and honeypot checks before you buy (Base, Ethereum, Solana), stablecoin peg monitor, DeFi lending yields, SEC filings, fundamentals and insider trades,…

Daily LLM-analyzed digests of trending GitHub repos plus raw trending-repo data, built for AI agents. Pay-per-call in USDC on Base via x402 — no accounts, no API keys.

Community-mined e-commerce demand intelligence for AI agents — scored, evidence-backed opportunity cards mined from Reddit. Pay per call in USDC via x402 on Base. No signup, no API keys.

Swarmio does real work for you — research, plans, and readings that better your life, live.

246 pay-per-call data APIs for AI agents: official statistics and economy (ECB, Fed, Eurostat, World Bank, SEC, BOE, INE), crypto prices and sentiment, Spanish public data, compliance (sanctions, VAT, IBAN, LEI),…

Delx is an independent AI agent lab building and studying continuity, recovery, verifiable work and governed exchange for autonomous systems.

Web search, page reading, PDFs, file sharing, and flight APIs for AI agents. Pay per call in USDC without separate provider API keys.

Agent payments have no chargeback. Paddock is pre-payment verification for AI agents. Real, live, and fairly priced, checked before your agent pays.

VIN decode, recalls, reliability, known issues, and drive-away costs across the US and Canada. Pay per call in USDC via x402 — no accounts, no API keys.

Convert text into a 768-dimension embedding vector (nomic-embed-text) for semantic search, RAG retrieval, clustering, deduplication or similarity scoring. POST JSON {"input": string}, up to 3000 chara

SECONDED: a signed second opinion before your agent signs a trade, buys a token, pays or trusts a message. From $0.10 a check over x402, with no account.

Geospatial API calls for agents and software. Reproject coordinates, repair GeoJSON, run geometry operations, and look up places, paid per request in USDC over x402.

x402 on Cloudflare Workers AI — chat/completions, /search, firecrawl scrape, social ingest. pay usdc on base. no api keys.

Pay-per-call APIs for AI agents, paid in USDC on Base, Solana or Polygon, or RLUSD on the XRP Ledger, with x402: web search, page fetch and extract, screenshots, PDF to text, an HTTP proxy, and crypto market data.

Market data, transaction payloads, and portfolio tracking for DeFi yield across 1,000+ vaults on 20+ networks.

Financial fundamentals, screening, rankings and governance for Japanese listed companies — EDINET filings resolved into one structured, normalized schema with derived ratios and per-record provenance.

Machine-native capabilities for autonomous systems through HTTPS and MCP, with explicit contracts, machine-readable commerce, and verifiable outcomes.

One unified API for every Web3 yield across 75+ networks. Access staking, stablecoin yields, and DeFi with zero complexity and up to 2.8x higher revenue.

Continuously compounding intelligence across hundreds of metrics, signals, and digital assets. Clarity in chaos — built for elite operators and the agents that serve them.

twin3 provides the foundational Digital Body and infrastructure for the Agentic Economy. Deploy your personal Agent (xHuman.ID) and enterprise Agent Card (xAgent.ID) in minutes.

127 APIs for AI agents: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, checks before installing a package or citing a source, screenshots and PDF, PDF, OCR and document…

The platform to build and run sports AI agents. Turn your data into fan experiences, matchday content, and tools for your team.

Pay-per-call market and economic data API for AI agents: US stocks, ETFs and options, forex, crypto and on-chain perps, energy commodities, US and global macro (Fed, CPI, jobs, GDP, Treasury, World Bank), SEC filings,…

Handy tools and services that accept x402 payments

The X/Twitter API and agent skill for AI agents. One command in Claude Code, Cursor or OpenClaw — read, search, monitor and post, paid in USDC. No API key.

Pay-per-call APIs for AI agents in three lines: documents and web (URL to Markdown, PDF parsing and hallucination-guarded OCR, invoice verification, company enrichment), Japan statutory calculations (payroll, social…

FRED macro data, G10 FX rates, energy prices, yield curve spreads, recession signals, and economic calendar — queryable by any AI agent. Pay per query over x402, no subscriptions or API keys.

OnHub is the pay-per-request API layer for agents. Text inference paid per request with USDC on Base.

Give your agent practical ways to create, research, publish, remember, deploy, schedule, and act—without vendor accounts or API keys.

Selected OpenWebNinja data APIs through x402.

Xynaptic: 200+ official data APIs for AI agents. Crypto, company registry, energy, flights, real estate. Pay per call in USDC via x402 — no API key, no account.

Signalis synthesizes a 20-source roster into intelligence digests every 4 hours and tracks AI-business narratives with Pulse. Pay-per-call in USDC on Base via x402 — no accounts, no API keys.

Moltbook community intelligence for AI agents and creators — hourly community digests (narrative, sentiment, top topics) distilled from hundreds of community posts every hour, plus the Viral Advisor. Computed, not raw.

x402 Agentic is open infrastructure for autonomous AI agent payments. Built on x402 Protocol V2 + ERC-8004. Any agent, enterprise, or individual transacts instantly with stablecoins over HTTP.

Utility APIs for AI agents: headless browser rendering, webpage-to-markdown extraction, SVG-to-PNG conversion, and JSON-to-Excel export.

Primary-source commodities reference API for AI agents — EIA, FRED, CFTC, USDA via x402 USDC on Base. Inventories, cash, COT, and structure with ruthless freshness labels.

Job search APIs powered by micropayments.

Search worldwide events, schedules, artists, venues, and organizers through MCP or REST. Free discovery, transparent pay-per-call access, and x402 payments.

ReadX is a read-only X/Twitter JSON API. Profiles, timelines, tweets, search, lists, followers & following — pay per call with x402 micropayments in USDC on Base or Solana. No API keys.

Pre-spend trust gate for autonomous agents. Check observed x402 payment behavior before spend and verify signed V7 receipts downstream.

Browser Use is the cloud browser for AI agents. Run web agents that finish the task, or connect your own agent to stealth browsers at $0.02 an hour.

Pay-per-call YouTube video downloads via x402. StableTube downloads server-side and returns a temporary S3 URL.

Eighteen x402-paid endpoints on three rails — Base USDC, Solana USDC, JPYC on Polygon. Hosted agent chatbot at chat.anchor-x402.com. Pay-per-call, no API keys, no accounts.

API that lets AI agents search and book restaurant reservations on Resy. Pay $0.01 USDC per booking with a crypto wallet.

A deterministic cryptographic audit layer for AI agents. Tamper-evident hash chain, pay-per-call in USDC via x402.

Resolve companies, legal entities and financial reference data using authoritative sources. Machine-native, pay per request, no subscription.

Pay-per-request access to Financial Datasets AI through x402 and MPP.

Micro-APIs that AI agents pay for autonomously via x402. No signup. Insert coin, get result.

Decision-ready checks for autonomous agents before they pay, cite, or act—available over MCP and HTTP with x402 USDC payments.

Query 69 million Brazilian companies and official sanction lists through a clean JSON API. No signup, no API keys: agents pay per request in USDC via the x402 protocol.

74 pay-per-call APIs for agents, settled in USDC on Base and Solana through x402.

Paid x402 endpoints organized into product clusters. USDC-settled on Base. MCP-callable. ERC-8004 identity registry agentId 47167. Designed so an agent can find, call, and pay for utility on its own.

Edge Agents provides evidence-backed macro, market and decision intelligence for AI agents, individual leaders and investors, businesses and government teams requiring consulting, procurement and decision support.

Pay-per-call APIs for AI agents: real-time Chinese internet pulse (Weibo/Baidu/Douyin trends), structured Chinese-market news & events, industrial-theme momentum, and quant signals across China A-share / Hong Kong / US…

A machine-first oracle for upcoming FDA PDUFA decision dates, extracted from primary SEC filings and accuracy-backtested against actual FDA decisions.

Pay-per-call HTTP APIs for autonomous AI agents: YouTube transcripts, Google web search and news, Amazon and shopping, flights, maps, Scholar, and app stores.

APIs for AI agents, paid per call in USDC via x402. No accounts, no API keys, no humans required.

The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers).

Pay-per-call market and social trading data APIs for agents, paid with x402 (USDC on Base).

Check any ERC-20 token for honeypots, rug-pulls, malicious taxes, and source verification. GoPlus-powered risk score 0-100. $0.10/scan via x402.

One API key, 63 AI agent tools: web search, scraping, AI generation, OCR, crypto data. LangChain + MCP ready. Pay per call with credits or x402/USDC.

A payment terminal for your API. AI agents pay you per call, settled straight to your account in seconds.

Pay-per-request Ticketmaster Discovery API access for event, venue, attraction, and classification search.

Pay-per-call APIs for AI agents with x402: French decision makers and business emails, people search, counterparty checks, company contacts, hiring signals, email pre-check, document conversion.

Pre-transfer risk check for EVM addresses on Base. x402-paid API: POST an address, get a safe/caution/danger verdict before you send funds.

SVM402 is the Solana x402 conformance and resilience lab for payment agents: deterministic payment-failure scenarios, every call paid in USDC via x402 v2, on-chain settlement receipts, devnet and mainnet, with full…

A curated library of live data feeds and oracles for AI agents — pay per call in USDC over x402, settled on Base mainnet. First-party, verifiable, no token.

Telnyx is the only licensed carrier that owns its AI infrastructure end-to-end: private network, GPUs, edge compute. Nothing sits between your agent and the person on the line because every hop is ours.

Pay-per-call UK intelligence for AI agents, as clean JSON. Company checks: Companies House + FCA cross-checks with a 0-100 legitimacy verdict.

Machine-consumable Web Read, Content Extraction and bounded Web Research over x402, with USDC payments on Base.

Qonoro builds x402-native AI agents and structured intelligence APIs for autonomous agents, developers, and human teams.

Small, single-purpose web data APIs that AI agents pay for per call in USDC over the x402 protocol (HTTP 402). No accounts, no API keys, no subscriptions.

A marketplace where autonomous agents discover, pay for, and buy live data and scientific capabilities with x402 (USDC on Base).

Skim is a clean URL-to-markdown reader for agents. Card API key (sk402_) is the default path; USDC on Base via x402 is optional.

Trustless verified answers for AI agents: 59 financial, tax & legal calculators sold per call in USDC on Base via x402.

x402-native Japan-action API for global AI agents. Verify Japanese identifiers, search municipal grants, run multi-minute Japanese research. No API key, wallet-auth, per-call USDC on Base mainnet.

8 production Japan-data & travel APIs (address normalization, furigana, transit delays, Diet records, holidays, weather, corporate registry, eSIM concierge) payable per-call with USDC via x402 on Base, Polygon, and…

RugShield aggregates Solana risk checks: one API call runs independent advisors in parallel, plus our own code-based flags. Pay in USDC via x402.

Reputation intelligence for the autonomous agent economy. Trust scores, Sybil detection, and cross-chain identity for 130,000+ ERC-8004 agents across 20 chains. Powered by x402 micropayments.

Pay-per-request access to social media data from TikTok, Instagram, Facebook, Reddit, and LinkedIn. No auth, no subscriptions.

Authoritative Swedish company and vehicle data, paid per call in USDC via the x402 protocol. No account, no contract, no API key.

Pay-per-call OFAC wallet screening, batch crypto sanctions checks, EDD memos, and audit-ready document output. Built for humans, AI agents, OpenAPI, MCP, and x402.

FluidRack hosts x402-ready microservices for AI agents: artifact storage, durable memory, and ephemeral publishing.

x402 on every GSC hub: a buying agent asks, pays inside the call and is served, with a receipt on chain. USDC and Open USD, 20 countries, one rail.

Personality intelligence for AI agents. 45 endpoints, 11 frameworks. Pay per call in USDC via x402. No API keys needed.

Pay-per-call APIs built for AI agents. No signup, no API keys. Agents settle USDC on Base via the x402 protocol and get JSON back in the same call. First call in under a minute.

Node4All provides everything you need to build payment-ready AI agents with x402, including step-by-step documentation, testing tools, code examples, and ready-to-use services.

Compare all x402 payment facilitators. Fees, supported chains, and features in one place.

Call AMNT's SVG and image agents with one HTTP request and pay in USDC over x402, or build your own agent and keep 100% of every run. Plus a free x402 facilitator and a directory of every paid API.

Google search — web, news, images, videos, places, shopping and Scholar — in one shape, paid per call in USDC over x402. No API key.

32 pay-per-call JSON APIs for AI agents. No account or API key: an unpaid POST returns HTTP 402, pay in USDC on Base with x402 v2, retry. Prices from $0.002 per call.

Hire an AI Ethereum builder. Consults, builds, and audits — pay with CLAWD or USDC on Base.

Useful tools for AI agents: verified translation, data quality and execution verification over Base USDC, plus recurring or prepaid Release Guard access.

TruthPal is the evidence layer for AI agents. Verify whether a supplied source supports a claim, for $0.02 USDC per verification.

Open payment standard built on HTTP 402 for internet-native and agentic payments; hosted as a Linux Foundation project with docs at docs.x402.org.

Coinbase Developer Platform's x402 documentation and hosted facilitator for verifying and settling x402 stablecoin payments for APIs and agents.

Coinbase's discovery layer for x402 services: a machine-readable index of paid endpoints that agents can search before paying per request.

x402 payment facilitator for AI agents and apps that accepts stablecoin payments across supported Solana and EVM networks with one integration.

thirdweb's x402 tooling for instant payments to APIs, websites and autonomous agents, with client and server SDKs.

Stripe documentation for accepting x402 machine payments from automated systems and AI agents in stablecoins.

Cloudflare Agents SDK docs for accepting and making machine-to-machine x402 payments on Cloudflare Workers.

Vercel's x402-mcp package integrating x402 payments with Model Context Protocol servers and the Vercel AI SDK, so MCP tools can charge per call.

Open-source extension that brings x402 crypto payments to the Agent-to-Agent (A2A) protocol so agents can monetize services with on-chain payments.

Pay-per-request blockchain RPC with no account or API key: agents pay with an x402 wallet across 76+ chains.

Account-free public and private IPFS uploads from Pinata, paid with crypto via Coinbase's x402 protocol, no API key needed.

Payments infrastructure for AI agents: metering, billing and settlement across MCP, x402 and A2A; compatible with x402, MPP and AP2.

Marketplace where AI agents hire other agents ('Mechs') for off-chain services using cryptographic signatures instead of API keys; listed agents earn crypto per job.

Agent Commerce Protocol for agent-to-agent commerce on Virtuals: agent registry, job specs, ERC-8183 trustless escrow, x402 support and evaluation.

Deploy autonomous AI agents with native payments (x402), ERC-8004 identity and A2A; set pricing and earn USDC each time an agent is invoked.

One balance for AI agents to pay per call for many x402 APIs, with no keys or subscriptions.

Unified API for hundreds of LLMs; credits can be bought with cryptocurrency (crypto payments carry a fee and are non-refundable per its FAQ).

Agentic finance research platform; Heurist Mesh lets agents pay with x402 for financial datasets, APIs, MCP servers and agent skills.

Trust, risk and compliance for the agentic economy, including the open-source x402-secure SDK/proxy and agent credit for paying x402 services.

Security for the agentic internet: endpoint verification, AI security scanning, GitHub code analysis and API monitoring, all payable with crypto via x402.

Agentic payment infrastructure and EVM-compatible chain for autonomous agents with native stablecoin settlement.

Agent trust stack: verified identity (KYA) and payment credentials for AI agents, including an agentic wallet that manages stablecoins and accepts cards and USDC at checkout.

Accept crypto payments from 90+ blockchains with one link, with cross-chain swaps, fiat onramps and payment links.

Private, uncensored AI platform with an OpenAI-compatible API for chat, image, audio and video models. Agents can pay with a wallet over x402: sign in with the wallet, top up a prepaid USDC balance on Base or Solana, then call the API with no account or API key.

Interpreted wallet data for 40+ EVM chains and Solana: portfolios, DeFi positions, PnL, transactions and NFTs. REST with an API key for apps, or x402 pay-per-call for agents.

Institutional crypto research data: asset metrics, fundraising and M&A data, news and an AI chat endpoint, with paid routes available per call over x402.

0x is a DEX aggregation API for token swaps. Its agent endpoint sells swap price and quote calls per request over x402, with no API key.

Open-source multichain block explorer. Its PRO API (addresses, transactions, tokens, blocks and more across many chains) can be paid per call over x402.

Crypto derivatives data and analytics (options flow, funding rates, volatility, liquidations) across 15+ exchanges, with API routes payable per call over x402.

AI-powered data matching, enrichment and standardization APIs (address parsing, name and company matching, email trust scores and more), payable per call over x402.

AI agent for crypto and US stock trading research. Its x402 API sells chat, expert chat, perp trading suggestions and intent-to-swap transaction building per request.

Trust and quality layer for AI agents: 250+ tested data capabilities (company data, compliance checks, financial validation, address tools) across 27 countries, callable over REST, MCP, A2A or x402.

AI browser agent for Chrome and the cloud. Its agent API sells web page scraping per request over x402.

ENS resolution, reverse resolution and identity enrichment for agents, paid per call in USDC on Base via x402 or MPP. From JustaName, the team behind the JAW.id embedded account layer.

40+ real-time public web data APIs (SERP, AI answers, e-commerce, real estate, finance), payable per call over x402 in USDC on Base, Polygon or Arbitrum with no account.

Best-priced crypto token swaps for agents, traders and apps: a pay-per-call quote and swap API via x402 or MPP, with no API key or subscription.

Market-expansion intelligence for GTM teams. Its agent API sells company search and lookups (ads, cloud footprint and other signals) per call over x402.

B2B contact and company data APIs for GTM teams and AI agents (enrichment, search, company intel), available over REST, MCP and CLI, with agent routes payable per call over x402.

Email inbox API for AI agents: create inboxes, then send, receive and search messages over REST. An x402 gateway lets agents pay per request with no account.

AI API gateway with one OpenAI-compatible endpoint for GPT, Claude, Gemini and other models, with smart routing and pay-per-call via x402 in USDC on Base or Solana.

Network and web intelligence API for AI agents: DNS lookup, WHOIS/RDAP, SSL/TLS checks, SPF/DKIM/DMARC and deliverability, and more, across 144 endpoints paid per call via x402.

French and European company data API for AI agents: SIREN lookups, KYB, VAT checks, BODACC notices and sanctions screening, paid per call via x402.

Pay-per-call HTTP APIs for AI agents, sold over x402 (USDC on Base or Solana) or MPP, with no account or API key. The site says it is operated end to end by an AI agent.

Pay-per-call AI inference across 120+ generative models (image, video, text), plus market data, SEC filings and identity APIs, from the web3 and AI studio Gliana Labs.

Keyless x402 API on Base for AI agents: OFAC wallet screening, multi-list sanctions checks and verified company data.

Residential proxy for autonomous AI agents, paid per request in USDC on Base via x402: no signup and no API keys, with 30-60 minute sticky sessions.

E-signatures for AI agents: send one PDF to one email recipient for a simple electronic signature, track its status and download the signed PDF, for $0.50 USDC per request on Base via x402.

Turns PDFs, JavaScript-rendered pages and ordinary HTML into clean Markdown for AI agents, following robots.txt (RFC 9309). $0.005 per call in USDC on Base over x402, with no account or API key.

Polymarket whale intelligence for AI agents: whale tracking with a published track record, market signals, daily digests and $1 deep research, paid per call in USDC on Base via x402.

Hyperliquid smart-money data: whale positioning, open interest and funding signals, priced per request in USDC over x402. The site publishes every settled sale with its transaction hash.

LinkedIn lead intelligence: spots buying conversations through intent signals and enriches the people engaging, with no LinkedIn login. Its agent API is paid per call via x402.

Zero-setup extraction API for AI agents: give it a URL and get clean Markdown or structured fields back, paid per call in USDC on Base over x402 with no signup.

Concise Schema.org JSON-LD and field-level product verification for any URL, for AI agents. You pay only for successful results, in USDC on Base via x402.

Pre-payment risk checks for x402 agents and wallets: OFAC SDN screening, phishing and drainer feeds, a watch of drainer infrastructure on Ethereum and Base, and transaction simulation.

Pre-action checks for AI agents: verify a bank account (IBAN), a phone number, a law in force, the weather or a vehicle, computed from official sources with provenance in every response. Pay per answer via x402.