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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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- Paid endpoints
- 106K
- Paid calls · 30 days
- 1M
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3,044 results- Aapi-salesDeveloper tools
Pre-payment trust check of a paid API endpoint: reachability, 402 handshake, registrable-domain age (RDAP), TLS days left, seller USDC balance and ETH gas runway on Base -> trust_score 0-100 + verdict pay|caution|avoid
Base49110-a2faebhnaj4vebqe.splox.appfrom $0.0021 endpoint - MMintSentryCrypto & DeFi
Token risk scan: liquidity, 24h volume, pair age and pair count for any EVM or Solana token address.
Base4021-agqvxhzdnbspb4kbciu4e4a3na.instabox.techfrom $0.0011 endpoint - FFastX402Developer tools
Domain availability and registration info (registrar, created, expires, status, nameservers) via RDAP
Base402-tools.tusk80.comfrom $0.0018 endpoints - 33c18b2d704b6940881478ee13baabb5a-dev.ctonew.appDeveloper tools
email verification
Base3c18b2d704b6940881478ee13baabb5a-dev.ctonew.appfrom $0.011 endpoint - 3369yz.pythonanywhere.comOther services
HookScore: gaming headline/hook scored 0-100 against the 369 content team's hook rules
Base369yz.pythonanywhere.comfrom $0.011 endpoint - 22captcha.x402.paysponge.comOther services
Service: 2Captcha (https://2captcha.x402.paysponge.com/createTask)
Base2captcha.x402.paysponge.comfrom Free2 endpoints - 11mpixels-one.vercel.appOther services
1mpixels tile 3,0: 100 permanent pixels on a 1,000,000 pixel canvas that only agents can buy.
Solana1mpixels-one.vercel.appfrom $0.012 endpoints - 11cent.maxzoa.ruOther services
Estimate words, characters, sentences and reading time. Only public HTTP(S) targets are accepted; JavaScript is not executed. Pass url as an absolute public HTTP(S) URL. Keep fresh=false to reuse cache; set fresh=true only when a new upstream fetch is required.
Base1cent.maxzoa.rufrom $0.00230 endpoints - 001a046b2-7104-74c2-8a02-04715d7235e1-r5wpl3p4c-xai-org.vercel.appCrypto & DeFi
Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-sonnet-5 $0.006, anthropic/claude-fable-5.1 $0.007, anthropic/claude-fable-5 $0.00
Solana01a046b2-7104-74c2-8a02-04715d7235e1-r5wpl3p4c-xai-org.vercel.appfrom $0.0061 endpoint - 001a046b2-7104-74c2-8a02-04715d7235e1-odi2maj6s-xai-org.vercel.appCrypto & DeFi
Cheap LLM inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for Gemma / Nemotron / free OpenRouter. inference, cheap llm, gemma. Models: openrouter/free $0.001, google/gemma-4-31b-it:free $0.001, google/gemma-4-26b-a4b-it:free $0.001, nvidia/nemotron-
Solana01a046b2-7104-74c2-8a02-04715d7235e1-odi2maj6s-xai-org.vercel.appfrom $0.0011 endpoint - 001a046b2-7104-74c2-8a02-04715d7235e1-mj99ttjfh-xai-org.vercel.appCrypto & DeFi
Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-sonnet-5 $0.006, anthropic/claude-fable-5.1 $0.007, anthropic/claude-fable-5 $0.00
Solana01a046b2-7104-74c2-8a02-04715d7235e1-mj99ttjfh-xai-org.vercel.appfrom $0.0071 endpoint - 001a046b2-7104-74c2-8a02-04715d7235e1-jmkrdwwwr-xai-org.vercel.appCrypto & DeFi
Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-sonnet-5 $0.006, anthropic/claude-fable-5.1 $0.007, anthropic/claude-fable-5 $0.00
Solana01a046b2-7104-74c2-8a02-04715d7235e1-jmkrdwwwr-xai-org.vercel.appfrom $0.0091 endpoint - 001a046b2-7104-74c2-8a02-04715d7235e1-hktfmuhfi-xai-org.vercel.appCrypto & DeFi
Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-sonnet-5 $0.006, anthropic/claude-fable-5.1 $0.007, anthropic/claude-fable-5 $0.00
Solana01a046b2-7104-74c2-8a02-04715d7235e1-hktfmuhfi-xai-org.vercel.appfrom $0.0091 endpoint - 001a046b2-7104-74c2-8a02-04715d7235e1-1aw0hwejp-xai-org.vercel.appCrypto & DeFi
Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-sonnet-5 $0.006, anthropic/claude-fable-5.1 $0.007, anthropic/claude-fable-5 $0.00
Solana01a046b2-7104-74c2-8a02-04715d7235e1-1aw0hwejp-xai-org.vercel.appfrom $0.0091 endpoint
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.