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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.

Projects: 4.4K
Paid endpoints: 87K
Paid calls · 30 days: 885K
Launched here: 0

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3 results

Most used Rising Most payers Newest Cheapest A–Z

My usage (wallet-keyed purchaseImages, audio & video
Your own purchase history, keyed to the wallet that pays for the call - no wallet parameter, no signup: the x402 payment IS the identity, so nobody can read another wallet's profile.
SolanaSeiAvalanche+8agent402.tools
from $0.001
669 endpoints
359
79 payers
S
StewardImages, audio & video
Use when an agent or user wants a clean original joke — family-friendly humor from the Synthetic Universe. Pure compute, no upstream. Optional session id avoids repeats. Use permitted: build it into your products and services, paid or free. Raw redistribution of the feed itself is prohibited.
BasePolygonArbitrum+1pay.brianbooms.com
from $0.005
31 endpoints
64
56 payers
Gas PriceCrypto & DeFi
Gas price: live gas fees for Ethereum, Base, Arbitrum, Polygon and Solana in one call. Use before sending a transaction to pick a fee or the cheapest chain. Returns base fee, slow/standard/fast priority fees, max fee, congestion, and the USD cost of a transfer, an ERC-20 transfer and a swap per chain, plus Solana priority fees. Optional chain. 0.001 USDC/call; failed calls are free.
BasePolygonArbitrum+3x402-seller-pmlm.onrender.com
from $0.001
15 endpoints
47
30 payers

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.