ToolAssay

Everything else

7,278 tools. Tools that answered our last check come first.

Pure-compute data format conversion (no network)
Answering api.agentstools.dev listed $0.001 answered 2 of 2 checks this week 1000 ms Everything else
Query Polymarket markets with filtering, sorting, and pagination
Answering api.aidress.ai listed $0.0085 answered 2 of 2 checks this week 548 ms Everything else
Quick pre-flight quality score
Answering promptqualityscore.com listed $0.001 answered 2 of 2 checks this week 1270 ms Everything else
Ratatouille demo hello world
Answering oc-person-c.nvprotas.name listed $0.001 answered 2 of 2 checks this week 1762 ms Everything else
Real browser-side adoption signal from the official jsDelivr Stats API
Answering data.greeneris.io listed $0.002 answered 2 of 2 checks this week 1017 ms Everything else
Reduce a fraction to lowest terms and describe it
Answering fraction.openverbs.com listed $0.002 answered 2 of 2 checks this week 684 ms Everything else
Render an http(s) URL to a PDF (A4/A3/Letter/Legal/Tabloid) with print emulation
Answering screenshot-api-production-fe7e.up.railway.app listed $0.002 answered 2 of 2 checks this week 1526 ms Everything else
Resolve a filename, path or extension to its MIME type, charset and full Content
Answering mime.openverbs.com listed $0.002 answered 2 of 2 checks this week 607 ms Everything else
Retrieve change alerts for monitored URLs
Answering cron.memoryapi.org listed $0.001 answered 2 of 2 checks this week 687 ms Everything else
Return the full detected technology stack for a domain
Answering agents.bytemine.ai listed $0.01 answered 2 of 2 checks this week 784 ms Everything else
Reverse-DNS lookup for an IP
Answering dns-intel-api-production.up.railway.app listed $0.002 answered 2 of 2 checks this week 1523 ms Everything else
Roll dice notation with a cryptographically secure RNG, optionally repeated
Answering dice.openverbs.com listed $0.002 answered 2 of 2 checks this week 463 ms Everything else
Round an amount to a currency's minor units (or an explicit minorUnits) with a c
Answering money.openverbs.com listed $0.002 answered 2 of 2 checks this week 648 ms Everything else
SYNTHORA ecb-macro
Answering api.hergertsynthora.com listed $0.03 answered 2 of 2 checks this week 910 ms Everything else
SYNTHORA port-watch
Answering api.hergertsynthora.com listed $0.03 answered 2 of 2 checks this week 886 ms Everything else
SYNTHORA usgs-earthquakes
Answering api.hergertsynthora.com listed $0.03 answered 2 of 2 checks this week 916 ms Everything else
Score how clearly an AI agent can discover, parse, and reason about a public API
Answering endpoint-iq-production.up.railway.app listed $0.001 answered 2 of 2 checks this week 1509 ms Everything else
Seedance 1.5 pro
Answering kino402.com listed $0.056 answered 2 of 2 checks this week 152 ms Everything else
Service
Answering tripadvisor.x402.paysponge.com listed $0.01 answered 2 of 2 checks this week 669 ms Everything else
Single-fact
Answering api.seneschal.space listed $0.001 answered 2 of 2 checks this week 979 ms Everything else
Single-fact
Answering api.seneschal.space listed $0.001 answered 2 of 2 checks this week 934 ms Everything else
Skim
Answering skim402.com listed $0.005 answered 2 of 2 checks this week 691 ms Everything else
Skim
Answering skim402.com listed $0.002 answered 2 of 2 checks this week 1085 ms Everything else
Sniff which structured format an unknown document is
Answering format.openverbs.com listed $0.004 answered 2 of 2 checks this week 718 ms Everything else
Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-in
Answering space-weather.use.x402atlas.com listed $0.005 answered 2 of 2 checks this week 618 ms Everything else
Spell an integer out in English words, e.g
Answering numeral.openverbs.com listed $0.002 answered 2 of 2 checks this week 679 ms Everything else
Spell text using the NATO/ICAO phonetic alphabet (A→Alfa, B→Bravo, …), including
Answering nato.openverbs.com listed $0.002 answered 2 of 2 checks this week 616 ms Everything else
Split an identifier or phrase into words and render it in every common case — ca
Answering inflect.openverbs.com listed $0.002 answered 2 of 2 checks this week 696 ms Everything else
Spread between 10-year and 2-year Treasury yields
Answering stationfx.com listed $0.008 answered 2 of 2 checks this week 429 ms Everything else
Stacktree
Answering api.stacktr.ee listed $1.00 answered 2 of 2 checks this week 204 ms Everything else
Stats for a public GitHub repository
Answering x402-seller-0ay3.onrender.com listed $0.005 answered 2 of 2 checks this week 332 ms Everything else
Street address → GPS check-in pin
Answering mcp.zensched.com listed $0.03 answered 2 of 2 checks this week 628 ms Everything else
Student's t distribution with df degrees of freedom (> 0)
Answering distribution.openverbs.com listed $0.004 answered 2 of 2 checks this week 647 ms Everything else
The Phoblographer content lookup
Answering library.proofivy.com listed $0.07 answered 2 of 2 checks this week 672 ms Everything else
The effective federal funds rate — the Fed's benchmark policy rate that anchors
Answering x402stock.xyz listed $0.01 answered 2 of 2 checks this week 301 ms Everything else
The n-th Catalan number Cₙ = C(2n, n)/(n+1), counting balanced bracketings, bina
Answering combinatorics.openverbs.com listed $0.004 answered 2 of 2 checks this week 627 ms Everything else
Top stables ranked by mcap with peg deviation (now/24h/7d) + stability score + r
Answering stable.lonestaroracle.xyz listed $0.05 answered 2 of 2 checks this week 755 ms Everything else
Top trusted deployers
Answering api.robinx.io listed $0.01 answered 2 of 2 checks this week 674 ms Everything else
Topic ranking — Ranked social topics for a window
Answering onvexia.com listed $0.001 answered 2 of 2 checks this week 1217 ms Everything else
Transpose a matrix, swapping rows and columns
Answering matrix.openverbs.com listed $0.004 answered 2 of 2 checks this week 452 ms Everything else
Travel deals and hotel deals finder for any destination worldwide
Answering travelpulse.theaslangroupllc.com listed $0.08 answered 2 of 2 checks this week 454 ms Everything else
Trending Farcaster channels ranked by casting activity over 1d, 7d or 30d, with
Answering agent402.tools listed $0.004 answered 2 of 2 checks this week 966 ms Everything else
Trending narrative categories with momentum indicators and top tickers in each n
Answering capable-grace-production-ab1c.up.railway.app listed $0.01 answered 2 of 2 checks this week 1567 ms Everything else
Trending tickers right now
Answering orchard-data.netlify.app listed $0.005 answered 2 of 2 checks this week 730 ms Everything else
Trivia Daily knowledge challenge — answer one deterministically selected and shu
Answering agent-arcade.use.x402atlas.com listed $0.005 answered 2 of 2 checks this week 644 ms Everything else
Twitter
Answering x402.orthogonal.com listed $0.02 answered 2 of 2 checks this week 306 ms Everything else
Two directions over query strings
Answering url.openverbs.com listed $0.002 answered 2 of 2 checks this week 631 ms Everything else
UOS Genesis machine utility
Answering genesis.palsus2023.workers.dev listed $0.015 answered 2 of 2 checks this week 2702 ms Everything else
URL -> safety verdict
Answering tariffmonkee.com listed $0.005 answered 2 of 2 checks this week 718 ms Everything else
US motor carrier safety verdict by USDOT
Answering loonie-toll.onrender.com listed $0.03 answered 2 of 2 checks this week 171 ms Everything else
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