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Best x402 APIs for AI agents, by task

Updated 2026-10-21

The best x402 API for an AI agent depends on the job: search, inference, onchain data, market data, trust checks or media. Below are x402 APIs from our directory grouped by the task an agent is doing. Each one returned valid x402 payment terms or was confirmed from the provider’s own site or docs on the date shown. 280 of our listings accept x402 today.

How we order them: within each task, by listed starting price per call, cheapest first. We don’t rank by usage, and paid placements never change the order. Prices change, so check the provider’s 402 reply before paying (see how to pay for an API with USDC).

Search the web and read pages

For agents that need fresh information: search results, page-to-Markdown conversion and scraping, paid per request. All 24 x402 listings in this group are on Web Search & Scraping, with a comparison table at best web search & scraping.

#ToolProtocolNetworksTokensPrice / callVerified
1ClawFetch.aix402BaseUSDC$0.001–$0.022026-10-21
2Exax402Arc, Base, SolanaUSDC$0.001–$0.0072026-10-21
3mdapix402BaseUSDC$0.001–$0.012026-10-21
4Minifetchx402Base, SolanaUSDC$0.001–$0.012026-10-21
5Munitionx402Arbitrum, Base, PolygonUSDC$0.001–$0.052026-10-21
6Orthogonalx402Base, Monad, SolanaUSDC$0.001–$62026-10-21
7Superhighwayx402BaseUSDC$0.001–$0.0052026-10-21
8AARNx402BaseUSDC$0.002–$0.0052026-10-21

Call an AI model without an account

OpenAI-compatible and other inference endpoints that take USDC per call, useful when an agent needs a second model or a cheap open model. All 14 x402 listings in this group are on AI Models & Inference, with a comparison table at best ai models & inference.

#ToolProtocolNetworksTokensPrice / callVerified
1Linkrrax402BaseUSDC$0.0012026-10-21
2Losbetox402Algorand, Base, PolygonUSDC$0.001–$0.992026-10-21
3JarvisClawx402Base, SolanaUSDC$0.0011–$0.6212026-10-21
4BlockRunx402BaseUSDC$0.002–$5.0012026-10-21
5GlianaAIx402Base, SolanaUSDC$0.002–$4.412026-10-21
6OnHubx402BaseUSDC$0.002–$0.042026-10-21
7Surplus Intelligencex402BaseUSDC$0.0033012026-10-21
8GEDX402x402BaseUSDC$0.0052026-10-21

Read onchain and crypto market data

Balances, transactions, token prices, DEX pairs, perpetual futures data and explorer lookups. All 33 x402 listings in this group are on Crypto & Onchain Data, with a comparison table at best crypto & onchain data.

#ToolProtocolNetworksTokensPrice / callVerified
13Routex402Base, Solana, EtherlinkUSDC$0.00001–$0.0012026-10-21
2ochinimusx402Base, Solana, PolygonUSDC$0.0005–$0.252026-10-21
347620x402Base, Solana, PolygonUSDC$0.001–$0.022026-10-21
4anchor-x402x402Arc, Base, PolygonUSDC$0.001–$1.772026-10-21
5Barkerx402Base, Polygon, ArbitrumUSDC$0.0012026-10-21
6Blockchain.com Explorer APIx402BaseUSDC$0.001–$0.0032026-10-21
7hyperextendx402BaseUSDC$0.001–$0.12582026-10-21
8Market Intelligence APIx402Arbitrum, Base, PolygonUSDC$0.001–$52026-10-21

Get financial and market signals

Stock, ETF, commodity and prediction-market data, plus trading signals. Information only, not investment advice. All 25 x402 listings in this group are on Financial & Market Data, with a comparison table at best financial & market data.

#ToolProtocolNetworksTokensPrice / callVerified
1402rates.comx402Arbitrum, Base, PolygonUSDC$0.001–$0.032026-10-21
2Lukka Prediction Marketsx402BaseUSDC$0.001–$0.0052026-10-21
3SignalFusex402BaseUSDC$0.001–$0.0752026-10-21
4TickersFeedx402BaseUSDC$0.001–$0.082026-10-21
5Japan Company Fundamentals APIx402Base, PolygonUSDC$0.002–$0.022026-10-21
6News Gurusx402BaseUSDC$0.002–$0.252026-10-21
7Coilx402Base, Solana, AlgorandUSDC$0.003–$0.252026-10-21
8StockWavesx402Arc, Base, SolanaUSDC$0.003–$1.52026-10-21

Check before you pay or trust

Sanctions and AML screening, agent reputation, contract and token risk, and prompt-injection checks. All 32 x402 listings in this group are on Trust, Security & Verification, with a comparison table at best trust, security & verification.

#ToolProtocolNetworksTokensPrice / callVerified
1Aidressx402Arc, Base, PolygonUSDC$0.001–$0.052026-10-21
2Cyrex402Base, SolanaUSDC$0.001–$0.012026-10-21
3Delxx402Base, SolanaUSDC$0.001–$0.012026-10-21
4EU Compliance Toolsx402Arbitrum, Base, PolygonUSDC$0.001–$0.12026-10-21
5hexscan.xyzx402BaseUSDC$0.001–$0.12026-10-21
6LION Verified Company Datax402BaseUSDC$0.001–$0.952026-10-21
7Paddockx402BaseUSDC$0.001–$0.992026-10-21
8Rubric Protocol (TenPrint)x402Algorand, Base, SolanaUSDC$0.001–$0.52026-10-21

Pull social media data

Posts, profiles and social signals from X, Reddit and other platforms. All 10 x402 listings in this group are on Social Media Data, with a comparison table at best social media data.

#ToolProtocolNetworksTokensPrice / callVerified
1glim.shx402Base, Monad, SolanaUSDC$0.001–$0.012026-10-21
2twitr.shx402Base, SolanaUSDC$0.0024–$0.122026-10-21
3twit.shx402BaseUSDC$0.0025–$0.012026-10-21
4Marketplace for AI Agentsx402BaseUSDC$0.0032026-10-21
5ReadXx402Base, SolanaUSDC$0.012026-10-21
6RobinXx402BaseUSDC$0.01–$0.052026-10-21
7Social Fetchx402BaseUSDC$0.0142026-10-21
8Moltalyzerx402BaseUSDC$0.022026-10-21

Everyday data: weather, sports, records

Weather, sports, public records, datasets and other single-purpose data APIs. All 31 x402 listings in this group are on Other Data APIs, with a comparison table at best other data apis.

#ToolProtocolNetworksTokensPrice / callVerified
1Agentic JPx402Base, Polygon, SolanaUSDC$0.001–$0.0092026-10-21
2Anyway Possiblex402BaseUSDC$0.001–$0.012026-10-21
3Fanfarex402BaseUSDC$0.001–$0.052026-10-21
4ForgeMesh Labsx402BaseUSDC$0.001–$0.252026-10-21
5Invoketx402BaseUSDC$0.001–$0.052026-10-21
6Oblique Marketsx402Base, SolanaUSDC$0.001–$12026-10-21
7TariffMonkeex402Base, SolanaUSDC$0.001–$0.752026-10-21
8Vibe Springsx402BaseUSDC$0.001–$0.052026-10-21

Generate images, video and audio

Text-to-speech, music, image and video generation paid per job. All 8 x402 listings in this group are on Image, Video & Voice Generation, with a comparison table at best image, video & voice generation.

#ToolProtocolNetworksTokensPrice / callVerified
1AMNTx402Base, SolanaUSDC$0.001–$0.0152026-10-21
2Higgsfield AIx402BaseUSDC$0.001–$0.022026-10-21
3Mart402x402BaseUSDC$0.001–$2.992026-10-21
4api2ls.comx402Base, SolanaUSDC$0.012026-10-21
5StableStudiox402Base, SolanaUSDC$0.012026-10-21
6Xona Agentx402BaseUSDC$0.01–$0.52026-10-21
7Trezax402Base, SolanaUSDC$0.04–$3.222026-10-21
8Driftflightx402BaseUSDC$0.062026-10-21

What to look for in an x402 API

  • A clear 402 reply. An unpaid call should return HTTP 402 with the price, network, token and payTo address. If it doesn’t, the agent can’t pay it automatically.
  • Networks you hold funds on. Most listings take USDC on Base; many also accept Solana. Filter by network on Base or Solana.
  • Machine-readable docs. An OpenAPI file, an MCP server or input and output examples in the 402 reply save your agent guesswork.
  • A real operator. Check the homepage, docs and terms before you send money. Our verification notes explain what we check for each listing.

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