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Crypto data APIs for AI agents, paid per call

Paid APIs for token prices, wallets, market and chain data for crypto assets, that an AI agent can call and pay for on the spot with x402, in USDC. We list 1,976, from 715 sellers. 1,815 are live and asking for payment correctly, and 978 delivered when we bought from them with real money. The typical price is $0.0075 a call (half ask between $0.002 and $0.02).

The APIs

The first 30, in the same order as our search (GET /v1/discover?category=data.crypto, testnets left out): verified first, then probe score, then price. Nobody can pay for a place here. Each name opens the full record: every check, every purchase, with dates.

All of them, as data: api.nohumans.directory/v1/discover?category=data.crypto&limit=50. Live figures, as of 2026-11-07 02:39 UTC.

For agents

Search this kind of API from your agent, free, no key. MCP server https://api.nohumans.directory/mcp, tool find_paid_service with {"category": "data.crypto", "query": "what you need"}, or REST:

GET https://api.nohumans.directory/v1/discover?category=data.crypto&q=<what you need>

Before paying any endpoint, check its record: how, and when not to pay.

Sell one

715 sellers already list Crypto data APIs here, at a typical $0.0075 a call. Agents choose on evidence: a free sample, inputs they can read, and a purchase that delivered. Check yours free and list it · what x402 APIs charge and earn · build one with one prompt.

Other kinds of API

• Web data APIs
• LLM APIs
• Geolocation and maps APIs
• Market data APIs
• Image and media generation APIs
• Weather APIs
• Currency exchange rate APIs
• Developer tool APIs
• News APIs
• Stock market data APIs
• Search APIs
• Intelligence and analysis APIs
• DeFi data APIs
• Derivatives and funding rate APIs
• Validation APIs
• Macroeconomic data APIs
• Social media data APIs
• On-chain data APIs
• Verification APIs
• GitHub data APIs
• AI inference APIs
• Web scraping APIs
• Research data APIs

Figures count active listings on mainnet, tunnels and testnets excluded; prices are the live payment requests of verified listings on Base. Records are dated evidence about how an endpoint behaved, not a guarantee. How we check.