ToolAssay

Everything else

8,220 tools. Tools that answered our last check come first.

Register a domain for one year via Namecheap
Not tested: has real-world effects palmyr.ai listed $10.00 Everything else
Send a list of domain names and this tool tells you exactly how old each one is,
Not tested: has real-world effects domain-age-checker.underscoredone.com listed $0.01 Everything else
Send up to 10 domain names and get back every DNS record type (A, AAAA, MX, CNAM
Not tested: has real-world effects dns-whois-lookup.underscoredone.com listed $0.01 Everything else
Structured evaluation with TypeSafe's Jev (System One) model
Not tested: has real-world effects jev-x402-evil.vercel.app listed $0.005 Everything else
Submit a startup credit or startup program for evidence-backed human review
Not tested: has real-world effects api.sourcey.com listed $25.00 Everything else
Turns a Solidity signature like transfer(address,uint256) into its 4-byte functi
Not tested: has real-world effects flat-rate-llm.kikoribera03.workers.dev listed $0.005 Everything else
Use when an agent needs base usdc transfer check
Not tested: has real-world effects api.oblique.markets listed $0.004 Everything else
Validates an EVM address and returns it in EIP-55 mixed-case checksum form
Not tested: has real-world effects flat-rate-llm.kikoribera03.workers.dev listed $0.005 Everything else
Verify a legal case citation
Not tested: has real-world effects goodsong.dev listed $0.01 Everything else
What it really costs to bring USDC into Arc over Circle CCTP, measured from arri
Not tested: has real-world effects apexfaucet.xyz listed $0.004 Everything else
Xynaptic Security Earnings — quarterly results from EDGAR
Not tested: has real-world effects api.xynaptic.io listed $0.02 Everything else
Xynaptic Trip Planner FR — full train itinerary between two French stations or c
Not tested: has real-world effects api.xynaptic.io listed $0.03 Everything else
You receive EVERY address we have scored in scoreboard[], not a top-and-bottom s
Not tested: has real-world effects apexfaucet.xyz listed $0.025 Everything else
nohumans.directory demand clusters
Not tested: has real-world effects api.nohumans.directory listed $0.25 Everything else
x402 Doctor for a block you hit (e.g
Not tested: has real-world effects api.maxwellinternational.ai listed $0.005 Everything else
x402 conformance preflight of any endpoint
Not tested: has real-world effects numberintel.dev listed $0.02 Everything else
$SOLV buy kit — live ETH->SOLV quote for any amount, ready-to-sign Universal Rou
Not tested: has real-world effects agentworld.me listed $0.01 Everything else
01Mind listing
Not tested: has real-world effects 01mind.net listed $0.003 Everything else
13F holdings for any SEC-filing manager (hedge funds, asset managers) by CIK or
Not tested: has real-world effects x402.ottoai.services listed $0.003 Everything else
8-K corporate events classified by item number with extractive summaries — Mater
Not tested: has real-world effects x402-factory.com listed $0.02 Everything else
A deterministic digest of the IPO pipeline for a window
Not tested: has real-world effects agent402.tools listed $0.05 Everything else
A paid Governed Machine Commerce service running on AgentPay, SAF-Authority's Co
Not tested: has real-world effects api.x402-engine.com listed $0.1 Everything else
A signed, timestamped statement that a specific SHA-256 was presented to Soren a
Not tested: has real-world effects soren.com listed $0.02 Everything else
AMT-10 (Hodkinson 1972)
Not tested: has real-world effects api.magentlab.com listed $0.005 Everything else
Aletaha 2005 Clinical Disease Activity Index (CDAI) for rheumatoid arthritis
Not tested: has real-world effects api.magentlab.com listed $0.005 Everything else
All published versions of an npm package with publish dates, the dist-tags (late
Not tested: has real-world effects intel.rallylive.ca listed $0.01 Everything else
Applies caller-supplied rename and numeric scale/offset rules to scalar attribut
Not tested: has real-world effects gaming.halowerk.com listed $0.004 Everything else
BEFORE YOU PAY an x402 402
Not tested: has real-world effects pathmint.edge.report listed $0.01 Everything else
Before your agent bills a customer
Not tested: has real-world effects api.invoket.com listed $0.1 Everything else
Bush 1996 23-item catatonia rating scale from caller-assigned integers
Not tested: has real-world effects api.magentlab.com listed $0.005 Everything else
Buy a pixel!
Not tested: has real-world effects www.xplace.dev listed $0.01 Everything else
Buy the "My Agent Bought Me This" embroidered hat — 0.5 USDC on Base
Not tested: has real-world effects web-production-77376.up.railway.app listed $0.5 Everything else
CORS check for a URL
Not tested: has real-world effects intel.rallylive.ca listed $0.01 Everything else
Can this domain be spoofed?
Not tested: has real-world effects intel.rallylive.ca listed $0.01 Everything else
Canet 2010 ARISCAT simplified risk score (Table 6, β×10 rounded; Mazo 2014 repri
Not tested: has real-world effects api.magentlab.com listed $0.005 Everything else
Cardiac Anesthesia Risk Evaluation (CARE) score (Dupuis 2001)
Not tested: has real-world effects api.magentlab.com listed $0.005 Everything else
Check an outbound payout immediately before authorization to catch changed desti
Not tested: has real-world effects api.vrsai.tech listed $0.05 Everything else
Check invoice amounts, purchase details and line items; return match, discrepanc
Not tested: has real-world effects mcp.dropenginehq.com listed $0.065 Everything else
Check whether an ENS identity name for an AI agent, API or MCP server is availab
Not tested: has real-world effects x402id-availability.dmpay.workers.dev listed $0.001 Everything else
Cited time-series for a single financial line-item from SEC EDGAR XBRL
Not tested: has real-world effects api.agentstools.dev listed $0.01 Everything else
Client Software Handoff Guide
Not tested: has real-world effects saylorinnovations.com listed $0.01 answered 2 of 2 checks this week 478 ms Everything else
Collect the emails, phone numbers and social profiles a page visibly publishes
Not tested: has real-world effects api.x-402.online listed $0.005 Everything else
Combines security flags with the verified ABI's function names, then Claude expl
Not tested: has real-world effects 402.com.tr listed $0.04 Everything else
Confirm a USDC payment actually settled
Not tested: has real-world effects agent402.tools listed $0.004 Everything else
Convert any physical measurement — length, mass, volume, temperature, area, spee
Not tested: has real-world effects netintel.dev listed $0.01 Everything else
Convert raw HTML you already have into clean markdown
Not tested: has real-world effects agentreader.dev listed $0.005 Everything else
Create an email validation job from a JSON list of addresses or CSV text (send e
Not tested: has real-world effects tuski.pay.zeroclick.io listed $0.01 Everything else
Current Base base fee, suggested priority fees and USD cost estimates for a tran
Not tested: has real-world effects xhagents.xyz listed $0.1 Everything else
DDG agent-payable service request
Not tested: has real-world effects agents.daedalusdevelopmentgroup.com listed $0.01 Everything else
DDG agent-payable service request
Not tested: has real-world effects agents.daedalusdevelopmentgroup.com listed $0.005 Everything else
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