YourAITools

Agent Marketplaces & Directories APIs on Arbitrum

5 listings in Agent Marketplaces & Directories accept payment on Arbitrum, all of them pay-per-call over x402. Sorted A to Z by name; paid placement never changes this order.

We check 5 of these 5 listings every day without paying. On the latest check 5 were up and 5 answered with a valid x402 payment request; paid calls we measured start at $0.001 per call (median $0.005). Status data as of Nov 10, 2026, 7:31 AM ET.

ToolProtocolNetworksTokensPrice / callVerified
Agent402x402Base, Solana, PolygonUSDC, Global Dollar$0.001–$0.0052026-10-22
agentsvc.iox402Base, Solana, PolygonUSDC$0.002–$0.0152026-10-22
MicroTapx402Base, Solana, PolygonUSDC$0.001–$0.0252026-10-22
Wafermapx402Base, Polygon, ArbitrumUSDC, Global Dollar$0.001–$0.0022026-10-28
x402 Atlasx402Base, Solana, PolygonUSDC$0.005–$0.0062026-10-22

From our listing data (updated 2026-11-09). Networks and tokens are as each service lists them; not every token is offered on every network. Prices are listed prices per call; open a listing for the price we saw in its own HTTP 402 reply.

Agent Marketplaces & Directories on other networks

Base (38)Solana (15)Polygon (7)Arc (2)Monad (1)XRPL (1)Optimism (2)Algorand (1)Avalanche (1)Stellar (1)

Other categories on Arbitrum

Trust, Security & VerificationOther Data APIsDeveloper Tools & Infrastructure

More: all agent marketplaces & directories listings · agent marketplaces & directories price index · multi-chain x402 APIs

Questions

How many agent marketplaces & directories apis accept payment on Arbitrum?
5 listings in our directory (data updated 2026-11-09): Agent402, agentsvc.io, MicroTap, Wafermap and 1 more. The table lists all of them A to Z.
Which tokens do these Arbitrum APIs accept?
Across these listings: USDC (5), Global Dollar (2). Tokens are as each service lists them, and a service may offer a token on some networks only.
Do they accept other networks too?
5 of 5 also accept Base. 5 accept three or more networks; see the multi-chain list for those.
How does an agent pay one of these APIs on Arbitrum?
Over x402: the API answers an unpaid request with HTTP 402 and its payment terms (price, token, networks). The agent signs a payment on Arbitrum and repeats the request with the payment attached. No account or API key is needed.

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