ToolAssay

Everything else

7,164 tools. Tools that answered our last check come first.

AI chat completions API
Answering blockrun.ai listed $0.002 answered 1 of 1 checks this week 201 ms Everything else
Email deliverability verification
Answering win.oneshotagent.com listed $0.001 answered 1 of 1 checks this week 570 ms Everything else
Exa Contents
Answering stableenrich.dev listed $0.002 answered 1 of 1 checks this week 260 ms Everything else
Profile enrichment from LinkedIn URL
Answering win.oneshotagent.com listed $0.005 answered 1 of 1 checks this week 394 ms Everything else
Email enrichment and validation
Answering win.oneshotagent.com listed $0.005 answered 1 of 1 checks this week 402 ms Everything else
Validate an email address
Answering api.strale.io listed $0.0324 answered 1 of 1 checks this week 939 ms Everything else
PDL Person Enrich — career history, emails, phone
Answering stableenrich.dev listed $0.28 answered 1 of 1 checks this week 271 ms Everything else
Clado Contacts Enrichment
Answering stableenrich.dev listed $0.2 answered 1 of 1 checks this week 299 ms Everything else
Deterministic three-service GEO visibility composition with verified procurement
Answering agent-business-lab-composition.dfly90724.workers.dev listed $0.001 answered 1 of 1 checks this week 700 ms Everything else
Live Base mainnet gas
Answering base-gas-x402-production.up.railway.app listed $0.005 answered 1 of 1 checks this week 1470 ms Everything else
Basis for one perpetual
Answering agent402.tools listed $0.002 answered 1 of 1 checks this week 924 ms Everything else
Locus public pay-per-use API
Answering apollo.x402.paywithlocus.com listed $0.038 answered 1 of 1 checks this week 892 ms Everything else
Health check ping
Answering www.api-xpay.com listed $0.005 answered 1 of 1 checks this week 727 ms Everything else
Payment receipt with transaction details
Answering www.api-xpay.com listed $0.005 answered 1 of 1 checks this week 1725 ms Everything else
api.zerion.io/v1/wallets/:address/transactions
Answering api.zerion.io listed $0.01 answered 1 of 1 checks this week 483 ms Everything else
Paginated list of merchants (top recipients by volume)
Answering www.x402scan.com listed $0.01 answered 1 of 1 checks this week 607 ms Everything else
Cryptographic hash of a text string
Answering agent402.tools listed $0.001 answered 1 of 1 checks this week 946 ms Everything else
Service status and payment configuration
Answering www.api-xpay.com listed $0.005 answered 1 of 1 checks this week 723 ms Everything else
Current server time in UTC
Answering www.api-xpay.com listed $0.005 answered 1 of 1 checks this week 751 ms Everything else
Generate a random UUID v4
Answering www.api-xpay.com listed $0.005 answered 1 of 1 checks this week 714 ms Everything else
Return the requester IP address
Answering www.api-xpay.com listed $0.005 answered 1 of 1 checks this week 753 ms Everything else
Base network and USDC payment metadata
Answering www.api-xpay.com listed $0.005 answered 1 of 1 checks this week 729 ms Everything else
Generate a random integer and hex bytes
Answering www.api-xpay.com listed $0.005 answered 1 of 1 checks this week 729 ms Everything else
Live ticker statistics including mention counts, velocity (mentions/minute), acc
Answering x402.naiko.io listed $0.005 answered 1 of 1 checks this week 1539 ms Everything else
premium agent insight analysis
Answering topagentx402.vercel.app listed $0.001 answered 1 of 1 checks this week 282 ms Everything else
Estimate the gas a transaction will consume via eth_estimateGas before signing i
Answering api.onesource.io listed $0.004 answered 1 of 1 checks this week 752 ms Everything else
Look up a single Twitter/X tweet by its numeric tweet ID
Answering x402.twit.sh listed $0.0025 answered 1 of 1 checks this week 884 ms Everything else
Retrieve bulk cached Seats.aero award availability for a mileage program, option
Answering stabletravel.dev listed $0.04 answered 1 of 1 checks this week 251 ms Everything else
Skim
Answering skim402.com listed $0.002 answered 1 of 1 checks this week 692 ms Everything else
Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)
Answering api.onesource.io listed $0.003 answered 1 of 1 checks this week 788 ms Everything else
Get Smart Money Netflow Data
Answering api.nansen.ai listed $0.05 answered 1 of 1 checks this week 218 ms Everything else
Check follow relationship
Answering surf.cascade.fyi listed $0.001 answered 1 of 1 checks this week 1003 ms Everything else
Get the latest tweets (timeline) from a specific Twitter/X user by their usernam
Answering x402.twit.sh listed $0.01 answered 1 of 1 checks this week 900 ms Everything else
LinkedIn profile enrichment API for one B2B lead
Answering api.linkedpanda.com listed $0.05 answered 1 of 1 checks this week 327 ms Everything else
What agents keep asking for that nobody serves yet
Answering agent402.tools listed $0.005 answered 1 of 1 checks this week 1288 ms Everything else
Domain WHOIS and DNS lookup
Answering api.kadec0.xyz listed $0.02 answered 1 of 1 checks this week 170 ms Everything else
Verified work-email lookup for a LinkedIn profile
Answering api.linkedpanda.com listed $0.05 answered 1 of 1 checks this week 1246 ms Everything else
Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStora
Answering api.onesource.io listed $0.005 answered 1 of 1 checks this week 789 ms Everything else
Overall high-level facilitator stats
Answering www.x402scan.com listed $0.01 answered 1 of 1 checks this week 272 ms Everything else
Deduplicate a list preserving order
Answering api.delx.ai listed $0.001 answered 1 of 1 checks this week 1260 ms Everything else
Absolute value of a number
Answering api.delx.ai listed $0.001 answered 1 of 1 checks this week 1273 ms Everything else
Reverse geocoding — latitude/longitude → nearest formatted address plus structur
Answering 2s.io listed $0.0025 answered 1 of 1 checks this week 256 ms Everything else
Run a DexL agent
Answering agents.dexl.io listed $0.001181 answered 1 of 1 checks this week 2764 ms Everything else
Pay a tiny amount of USDC and receive one delightfully useless fact
Answering x402uselessfacts.vercel.app listed $0.001 answered 1 of 1 checks this week 318 ms Everything else
Recommended Bitcoin transaction fee rates in sat/vB (fastest, half-hour, hour, e
Answering data.greeneris.io listed $0.001 answered 1 of 1 checks this week 935 ms Everything else
Pending block
Answering api.onesource.io listed $0.01 answered 1 of 1 checks this week 749 ms Everything else
Pin a file to IPFS
Answering kleros-ipfs-gateway.fly.dev listed $0.01 answered 1 of 1 checks this week 772 ms Everything else
x402.openwebninja.com/google-ai-mode/ai-mode
Answering x402.openwebninja.com listed $0.005 answered 1 of 1 checks this week 992 ms Everything else
Exa /contents endpoint
Answering api.exa.ai listed $0.001 answered 1 of 1 checks this week 172 ms Everything else
Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test
Answering api.oblique.markets listed $0.01 answered 1 of 1 checks this week 176 ms Everything else
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