ToolAssay

All tools

13,805 tools. Tools that answered our last check come first.

Historical DeFi TVL across all chains from DefiLlama — aggregate time series (ex
Answering defillama.use.x402atlas.com listed $0.005 answered 2 of 2 checks this week 611 ms Market data
Historical daily weather for any location and date range (up to 1 year)
Answering agent402.tools listed $0.002 answered 2 of 2 checks this week 946 ms Everything else
Holt's linear trend method
Answering agent402.tools listed $0.001 answered 2 of 2 checks this week 950 ms Everything else
Holt-Winters triple exponential smoothing
Answering agent402.tools listed $0.001 answered 2 of 2 checks this week 997 ms Code and developer
Hourly US electricity demand, day-ahead demand forecast, net generation and tota
Answering agents.dexl.io listed $0.01 answered 2 of 2 checks this week 1400 ms Everything else
Hourly weather forecast for any point on Earth from Open-Meteo (blend of ECMWF/G
Answering data.greeneris.io listed $0.001 answered 2 of 2 checks this week 944 ms Everything else
IBAN verification and bank validation for SEPA payments
Answering api.sirenic.eu listed $0.005 answered 2 of 2 checks this week 899 ms Company and compliance
Import media into the project from a public https URL — the server fetches and m
Answering api.cueframe.ai listed $0.01 answered 2 of 2 checks this week 1311 ms Everything else
Inline every local `$ref` in an OpenAPI 3.x or Swagger 2.x document so downstrea
Answering agent402.tools listed $0.001 answered 2 of 2 checks this week 954 ms Everything else
Inspect any media file and get its technical metadata
Answering ffpipe.dev listed $0.01 answered 2 of 2 checks this week 540 ms Image and media
Instant crypto market health check
Answering bazaar-gateway.vercel.app listed $0.005 answered 2 of 2 checks this week 260 ms Market data
Introductory pricing
Answering api.neurodynamic.tech listed $0.005 answered 2 of 2 checks this week 976 ms Image and media
Invoice verification and supplier verification — verify supplier before payment
Answering api.sirenic.eu listed $0.03 answered 2 of 2 checks this week 897 ms Company and compliance
Is B20 live on Base mainnet?
Answering agent402.tools listed $0.002 answered 2 of 2 checks this week 936 ms Company and compliance
Is this address a contract, and what code does it hold?
Answering agent402.tools listed $0.002 answered 2 of 2 checks this week 1084 ms Code and developer
JSON to YAML
Answering toolshed.lemon-agent.dev listed $0.002 answered 2 of 2 checks this week 352 ms Everything else
Korean corporate disclosure (DART) event stream, cursor-based delta
Answering dartapi.ljaysk.com listed $0.002 answered 2 of 2 checks this week 709 ms Everything else
L2 order-book snapshot for a spot pair
Answering agent402.tools listed $0.001 answered 2 of 2 checks this week 951 ms Market data
LION Research Bundle — one-call enrichment + tx context
Answering lionx402.com listed $0.005 answered 2 of 2 checks this week 346 ms Search and research
LION Social Signal Intel (HN + Reddit keyless attention/trend)
Answering lionx402.com listed $0.004 answered 2 of 2 checks this week 766 ms Everything else
LLM Chat
Answering x402.freeq.one listed $0.05, asks $0.002 answered 2 of 2 checks this week 1017 ms Everything else
LLM chat completion (auto router, gemini/deepseek/kimi/qwen family), 0.005 USDC
Answering pyfile-agent.taile3ff35.ts.net listed $0.005 answered 2 of 2 checks this week 2912 ms Everything else
LLM-generated narrative recap of recent prediction-market activity
Answering api.predictionmarketdata.io listed $0.001 answered 2 of 2 checks this week 1923 ms Market data
Label a known EVM address from a curated, committed dataset
Answering agent402.tools listed $0.002 answered 2 of 2 checks this week 1043 ms Market data
Latest Sealed BTC Forecast
Answering app.tenna.ai listed $0.01 answered 2 of 2 checks this week 157 ms Market data
Latest direction+magnitude scorings for Polymarket events
Answering api.itsgloria.ai listed $0.1 answered 2 of 2 checks this week 427 ms Market data
Levenshtein edit distance between two strings, plus a 0-1 similarity ratio
Answering agent402.tools listed $0.001 answered 2 of 2 checks this week 983 ms Everything else
Line-by-line diff of two texts (LCS)
Answering agent402.tools listed $0.001 answered 2 of 2 checks this week 918 ms Everything else
List all active phone numbers provisioned to your wallet
Answering blockrun.ai listed $0.002 answered 2 of 2 checks this week 245 ms Market data
List all blockchain networks supported by this API's security scanning — Ethereu
Answering defi.hugen.tokyo listed $0.01 answered 2 of 2 checks this week 452 ms Market data
List all phone numbers owned by or shared with the calling wallet
Answering palmyr.ai listed $0.01 answered 2 of 2 checks this week 1317 ms Market data
List episodes
Answering api.particle.pro listed $0.01 answered 2 of 2 checks this week 199 ms Everything else
List every ISO 3166-1 alpha-2 country code for which a postal-code pattern is av
Answering postal.openverbs.com listed $0.002 answered 2 of 2 checks this week 834 ms Code and developer
List every network Yield.xyz supports (80+) with its id (slug), name, and catego
Answering mcp.yield.xyz listed $0.001 answered 2 of 2 checks this week 630 ms Everything else
List every physical constant in the dataset, or only those in a given category (
Answering physics.openverbs.com listed $0.004 answered 2 of 2 checks this week 606 ms Everything else
List or search SAN agents
Answering gateway.sanfoundation.com listed $0.01 answered 2 of 2 checks this week 972 ms Search and research
List the geographic locations available for Twitter/X trends, including WOEIDs,
Answering twitter.use.x402atlas.com listed $0.006 answered 2 of 2 checks this week 634 ms Everything else
List the merchants behind the catalog
Answering affiliate.pay.zeroclick.io listed $0.02 answered 1 of 2 checks this week 556 ms Commerce and shopping
List the official holidays for a country and year, with exact observed dates inc
Answering 2s.io listed $0.0025 answered 2 of 2 checks this week 325 ms Code and developer
Live Base wallet balance for AI agents
Answering anywaypossible.com listed $0.001 answered 2 of 2 checks this week 2829 ms Market data
Live Bitcoin mempool snapshot
Answering api.agentstools.dev listed $0.005 answered 2 of 2 checks this week 999 ms Everything else
Live ETC to USD price (Ethereum Classic / US Dollar)
Answering api.x402node.dev listed $0.004 answered 2 of 2 checks this week 488 ms Market data
Live MLB analysis
Answering agentpaystore.com listed $0.15 answered 2 of 2 checks this week 570 ms Everything else
Live UK public-sector tenders from Find a Tender and Contracts Finder in one cal
Answering api.ukintel.uk listed $0.05 answered 2 of 2 checks this week 250 ms Search and research
Live domain trust signals
Answering lionx402.com listed $0.005 answered 2 of 2 checks this week 454 ms Everything else
Live foreign-exchange reference rates (European Central Bank daily fixes, ~30 ma
Answering workbot1.oddsys.org listed $0.001 answered 2 of 2 checks this week 1338 ms Market data
Live price, market cap, 24h volume and 24h change for ERC-20 / SPL / other chain
Answering agent402.tools listed $0.005 answered 2 of 2 checks this week 938 ms Market data
Live survival telemetry of an autonomous agent that pays for its own thinking
Answering whaletape.xyz listed $0.01 answered 2 of 2 checks this week 334 ms Market data
Live total-value-locked levels and real 1d/7d/30d trend for Aave V3, Compound V3
Answering pay.edge-agents.ai listed $0.01 answered 2 of 2 checks this week 188 ms Market data
Locus public pay-per-use API
Answering perplexity.x402.paywithlocus.com listed $0.00575 answered 2 of 2 checks this week 559 ms Search and research
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