Explore APIs

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

All projects

6 results

Most used Rising Most payers Newest Cheapest A–Z

C
Crypto Wallet Sanctions (OFAC)Crypto & DeFi
Crypto wallet sanctions check (OFAC): is this blockchain address on the US Treasury OFAC sanctions lists? Exact match against all 1,000+ digital currency addresses OFAC publishes on SDN and Consolidated entries (Bitcoin, Tron, Ethereum and EVM chains, USDT, Litecoin, Monero and more), returning the listing's program and entry ID. Use before sending or accepting a crypto payment. No tracing or risk
BasexrplBase Sepolia+1api.stablecoingateways.com
from $0.001
14 endpoints
133
69 payers
F
ForeverKaratDeveloper tools
One-day API key for a weather data API. A test product on the Agentify test channel; nothing real is delivered.
Base Sepoliatest.agentify.ad
from $0.01
16 endpoints
102
16 payers
X
x240.jvnclk88.workers.devCrypto & DeFi
URL preflight - status, redirect chain, key headers, response time, robots.txt rules for the path and sitemap location
BaseBase Sepoliax240.jvnclk88.workers.dev
from $0.002
16 endpoints
72
54 payers
AI Score paid scanAI & agents
POST /api/scan — agent-readiness scan for a domain (~$0.01 USDC per call)
BaseBase Sepoliagetbags.app
from $0.01
4 endpoints
69
22 payers
E
Evidence402AI & agents
Read a public static HTTPS webpage as clean text with headings, links, timestamp and content hash. Use to ground an answer or ingest documentation. Respects robots.txt; no JavaScript or login.
Base SepoliaBaseevidence402.onrender.com
from $0.005
7 endpoints
16
15 payers
B
BaseGuard AICrypto & DeFi
Deterministic pre-interaction report on a Base contract address: bytecode and hash, source verification, proxy and implementation storage slots, ownership and administrator control, mint, pause, blacklist and freeze capabilities, upgrade paths, token identity and supply, measured liquidity, block number and timestamp, evidence sources, and confidence with explicit limitations. Blockchain intellige
Base Sepoliawork-1-bcozevpyudcxmqdj.prod-runtime.all-hands.dev
from $0.05
1 endpoint
0
calls / 30d

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.