ToolAssay

Code and developer

2,487 tools. Tools that answered our last check come first.

Postal/ZIP code lookup
Answers HTTP 530 without x402 payment terms twin.unykorn.org listed $0.001 answered 0 of 1 checks this week Code and developer
Pre-trade depth verdict for a pair on Arbitrum One
Answers HTTP 200 without x402 payment terms x402.donnyautomation.com listed $0.01 answered 1 of 2 checks this week 946 ms Code and developer
Pre-trade depth verdict for a pair on Avalanche C-Chain
Answers HTTP 200 without x402 payment terms x402.donnyautomation.com listed $0.01 answered 1 of 2 checks this week 893 ms Code and developer
Pre-trade depth verdict for a pair on BSC / BNB Chain
Answers HTTP 200 without x402 payment terms x402.donnyautomation.com listed $0.01 answered 0 of 2 checks this week Code and developer
Pre-trade depth verdict for a pair on Base
Answers HTTP 200 without x402 payment terms x402.donnyautomation.com listed $0.01 answered 0 of 2 checks this week Code and developer
Pre-trade depth verdict for a pair on OP Mainnet
Answers HTTP 200 without x402 payment terms x402.donnyautomation.com listed $0.01 answered 0 of 2 checks this week Code and developer
Pre-trade depth verdict for a pair on Polygon PoS
Answers HTTP 200 without x402 payment terms x402.donnyautomation.com listed $0.01 answered 0 of 2 checks this week Code and developer
Public and bank holidays for 100+ countries, and the business-day answer behind
Answers HTTP 200 without x402 payment terms x402.donnyautomation.com listed $0.01 answered 0 of 2 checks this week Code and developer
PyPI package facts
Answers HTTP 530 without x402 payment terms twin.unykorn.org listed $0.002 answered 0 of 1 checks this week Code and developer
Read, fetch, scrape, or extract any public webpage or URL for AI agents
Answers HTTP 404 without x402 payment terms smartfetch-production-ea53.up.railway.app listed $0.005 answered 1 of 2 checks this week 1431 ms Code and developer
Repair malformed JSON (trailing commas, single quotes, code fences, Python liter
Answers HTTP 530 without x402 payment terms twin.unykorn.org listed $0.002 answered 0 of 1 checks this week Code and developer
Verify a French craftsman or building trade professional before hiring
Answers HTTP 410 without x402 payment terms api.x-402.online listed $0.05 answered 0 of 1 checks this week Code and developer
Website security-headers audit with A-F grade, cookie flags and version leaks —
Answers HTTP 530 without x402 payment terms twin.unykorn.org listed $0.002 answered 0 of 1 checks this week Code and developer
Frontier chat on QWEN3 30B A3b FP8 (@cf/qwen/qwen3-30b-a3b-fp8)
Needs input the listing does not give llm.gedx402.com listed $0.008 Code and developer
National price statistics for a billing code (CPT/HCPCS/MS-DRG) from hospital pr
Needs input the listing does not give api.healthparse.io listed $0.005 Code and developer
Calculates 9 TTM financial ratios (P/E, P/OCF, P/FCF, P/B, EV/EBITDA, ROIC %, De
Needs input the listing does not give mtbandy--sec-ratio-engine-serve-app.modal.run listed $0.003 Code and developer
The prosecution-history timeline for one patent application — pass the `{applica
Needs input the listing does not give agents.x402stock.xyz listed $0.02 Code and developer
Converts between hex, decimal and UTF-8 text in one call, with big integers hand
Not answering flat-rate-llm.kikoribera03.workers.dev listed $0.0025 answered 1 of 2 checks this week 18 ms Code and developer
Dependencies of a PyPI project's latest release
Not answering intel.rallylive.ca listed $0.01 answered 1 of 2 checks this week 19 ms Code and developer
Bulk dns ttl audit
Not answering intel.rallylive.ca listed $0.01 answered 1 of 2 checks this week 16 ms Code and developer
Change watch for code block extract
Not answering intel.rallylive.ca listed $0.01 answered 1 of 2 checks this week 18 ms Code and developer
Is this website up?
Not answering intel.rallylive.ca listed $0.01 answered 1 of 2 checks this week 36 ms Code and developer
One lighthearted developer roast aimed at a target YOU choose
Not answering flat-rate-llm.kikoribera03.workers.dev listed $0.0025 answered 1 of 2 checks this week 18 ms Code and developer
Validate an EU EORI number (customs economic operator ID)
Not answering lookups.nl listed $0.005 answered 1 of 2 checks this week 375 ms Code and developer
Pay the send-native execution fee (native coin transfer)
Not tested: has real-world effects keyring-agent.blockchhub.link listed $0.05 Code and developer
Pay the send-token execution fee (ERC-20 transfer)
Not tested: has real-world effects keyring-agent.blockchhub.link listed $0.05 Code and developer
Search SimFuse prepaid travel eSIM data plans for 200+ countries and regions
Not tested: has real-world effects simfuse.app listed $0.001 Code and developer
Bidirectional SPL token swap aggregator on Solana mainnet via Jupiter v6 routing
Not tested: has real-world effects proxy.suverse.io listed n/a Code and developer
Inspect an ERC20 token contract for buy/sell tax fields, owner renouncement and
Not tested: has real-world effects api.x402node.dev listed $0.006 Code and developer
Buy the selected AI-generated code artifact
Not tested: has real-world effects spawnxchange-api-485602182462.europe-west4.run.app listed $1.00 Code and developer
Send a conversation to a model and get a completion back
Not tested: has real-world effects x402.orthogonal.com listed $0.005 Code and developer
List your AI-generated code for other agents to buy
Not tested: has real-world effects spawnxchange-api-485602182462.europe-west4.run.app listed $0.01 Code and developer
BTC Volatility Risk Premium — DVOL minus Parkinson realized vol (72h)
Not tested: has real-world effects regimeshift.xyz listed $0.001 Code and developer
Turn any URL into clean, LLM-ready markdown — the main article extracted, nav/ad
Not tested: has real-world effects x402.ottoai.services listed $0.005 Code and developer
Look up US company data from SEC EDGAR
Not tested: has real-world effects api.strale.io listed $0.054 Code and developer
Blockchain address validator — checksum and format validation for AmanChain addr
Not tested: has real-world effects amanchain-relay.gitajhd.workers.dev listed $0.002488 Code and developer
ETH Volatility Risk Premium — DVOL minus Parkinson realized vol (72h)
Not tested: has real-world effects regimeshift.xyz listed $0.001 Code and developer
Fact-check and review an AI agent's draft before a human sees it
Not tested: has real-world effects crosscheckapi.com listed $0.02 Code and developer
Decide whether an agent-authored bash command complies with an execution policy,
Not tested: has real-world effects shellpermit.schemasure.com listed $0.015 Code and developer
Instant AMM swap quote — exact output amount, price impact and swap fee for any
Not tested: has real-world effects amanchain-relay.gitajhd.workers.dev listed $0.003732 Code and developer
Before an AI agent trusts or pays a public API, inspect its public machine-reada
Not tested: has real-world effects proof.platoskallipolis.com listed $0.01 Code and developer
Cross-chain bridge status — supported networks including Base (chainId 8453), li
Not tested: has real-world effects amanchain-relay.gitajhd.workers.dev listed $0.007465 Code and developer
Is this API safe to pay?
Not tested: has real-world effects merchant-audit.clankerceo.workers.dev listed $0.01 Code and developer
Pay the swap-token execution fee (token-for-token swap)
Not tested: has real-world effects keyring-agent.blockchhub.link listed $0.001 Code and developer
Token launch pre-flight validator — validates symbol, name, decimals and supply,
Not tested: has real-world effects amanchain-relay.gitajhd.workers.dev listed $0.007465 Code and developer
Whale watch — large on-chain transfers above any threshold you set; real-time wh
Not tested: has real-world effects amanchain-relay.gitajhd.workers.dev listed $0.012441 Code and developer
X Preflight
Not tested: has real-world effects kevinhoff.com listed $0.01 Code and developer
Check an exact npm or PyPI package version immediately before installation using
Not tested: has real-world effects api.vrsai.tech listed $0.01 Code and developer
Publish your x402 API for agent discovery with an Ontario profile and Bazaar Lau
Not tested: has real-world effects ontarioprotocol.com listed $0.5 Code and developer
Bidirectional ERC20 token swap aggregator on Base mainnet via LiFi routing acros
Not tested: has real-world effects proxy.suverse.io listed $0.001 Code and developer
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