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28,179 tools. Tools that answered our last check come first.

Validate an ISIN (International Securities Identification Number, ISO 6166)
Answering 2s.io listed $0.0025 answered 7 of 7 checks this week 259 ms Code and developer
Validate an ISIN against ISO 6166
Answering chainverdict.xyz listed $0.001 answered 7 of 7 checks this week 330 ms Everything else
Validate an ISIN securities identifier (ISO 6166) and check whether it is valid
Answering api.aventtech.com listed $0.01 answered 7 of 7 checks this week 21 ms Code and developer
Validate an International Bank Account Number (IBAN) with full ISO 13616 checks
Answering 2s.io listed $0.0025 answered 7 of 7 checks this week 255 ms Code and developer
Validate an email address
Answering agent402.tools listed $0.001 answered 7 of 7 checks this week 946 ms Everything else
Validate and bundle agent-bound receipt evidence without claiming external truth
Answering phion.systems listed $0.004 answered 7 of 7 checks this week 760 ms Everything else
Validate and convert GS1 identifiers
Answering api.duoleads.com listed $0.05 answered 5 of 5 checks this week 21 ms Code and developer
Validate and explain a cron expression
Answering aayatai.com listed $0.001 answered 7 of 7 checks this week 21 ms Everything else
Validate and explain a regular expression (JavaScript flavour)
Answering aayatai.com listed $0.001 answered 7 of 7 checks this week 23 ms Code and developer
Validate and sign a portable event hash chain
Answering phion.systems listed $0.004 answered 7 of 7 checks this week 755 ms Code and developer
Validate and sign a portable task, scope, budget and expiry handoff
Answering phion.systems listed $0.003 answered 7 of 7 checks this week 759 ms Everything else
Validate any IBAN offline — mod-97 check digits, per-country structure, bank/bra
Answering netintel.dev listed $0.005 answered 7 of 7 checks this week 904 ms Everything else
Validate declared signature status, freshness and payload evidence
Answering phion.systems listed $0.003 answered 7 of 7 checks this week 737 ms Everything else
Validate email address
Answering intel.rallylive.ca listed $0.01 answered 7 of 7 checks this week 15 ms Everything else
Validate invoice data
Answering api.strale.io listed $0.0216 answered 7 of 7 checks this week 960 ms Company and compliance
Validate least-privilege capabilities, data scope, destinations, budget and expi
Answering phion.systems listed $0.003 answered 7 of 7 checks this week 757 ms Everything else
Validate revocation authority separately from x402 payment and prepare bounded p
Answering api.blockchainmoneymap.com listed $0.25 answered 1 of 1 checks this week 1044 ms Everything else
Validate the check digit of a financial security identifier
Answering api.duoleads.com listed $0.05 answered 5 of 5 checks this week 22 ms Code and developer
Validate up to 500 identifiers in a single call — IBAN, VAT, BIC, LEI and ISIN m
Answering chainverdict.xyz listed $0.1 answered 7 of 7 checks this week 325 ms Company and compliance
Validate whether an input string is well-formed JSON
Answering agentbit.app listed $0.0015 answered 7 of 7 checks this week 1276 ms Everything else
Validate, pretty-print (any indentation, 0-8 spaces), or minify JSON, optionally
Answering agent402.tools listed $0.001 answered 7 of 7 checks this week 962 ms Everything else
Validate, pretty-print, and convert JSON to CSV in one pass
Answering agent402.tools listed $0.004 answered 7 of 7 checks this week 964 ms Everything else
Validates a credit card or IMEI number against the Luhn checksum algorithm
Answering dt0ur.online listed $0.01 answered 7 of 7 checks this week 603 ms Everything else
Validates a phone number and returns whether it's valid, reachable, carrier info
Answering x402.orthogonal.com listed $0.06 answered 7 of 7 checks this week 355 ms Everything else
Valuation, profitability, liquidity, leverage, efficiency, growth, and per-share
Answering stablefinance.dev listed $0.02 answered 7 of 7 checks this week 275 ms Market data
VeChain (VET) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Op
Answering twin.unykorn.org listed $0.001 answered 7 of 7 checks this week 244 ms Market data
Vector database benchmarks for Agent builders
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 338 ms Market data
Vector database benchmarks for Analysts
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 337 ms Market data
Vector database benchmarks for Developers
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 340 ms Market data
Vector database benchmarks for Operations teams
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 338 ms Market data
Vector database benchmarks for Technology buyers
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 337 ms Market data
Vector databases updates for Agent builders
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 338 ms Market data
Vector databases updates for Analysts
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 318 ms Market data
Vector databases updates for Operations teams
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 317 ms Market data
Vector databases updates for Technology buyers
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 425 ms Market data
Vehicle Identification Number validation (ISO 3779)
Answering api.aventtech.com listed $0.01 answered 7 of 7 checks this week 154 ms Code and developer
Vehicle safety recalls (NHTSA) by make, model and year — Genesis402 / UnyKorn Op
Answering twin.unykorn.org listed $0.002 answered 7 of 7 checks this week 249 ms Everything else
Vendor RFP research for Platform operators
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 340 ms Market data
Vendor RFP research for Product teams
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 338 ms Commerce and shopping
Vendor RFP research for Research teams
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 400 ms Market data
Vendor RFP research for Software builders
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 404 ms Market data
Vendor RFP research for Startup founders
Answering market.datapackvibe.com listed $0.01 answered 3 of 3 checks this week 340 ms Market data
Verbatim, line-cited extraction of the material quantitative sentences from any
Answering alpha402x.com listed $0.05 answered 7 of 7 checks this week 955 ms Company and compliance
Verifiable Random dice — unbiased dice rolls bound to a future drand round the s
Answering verifiable-random.use.x402atlas.com listed $0.005 answered 7 of 7 checks this week 637 ms Everything else
Verifiable Random shuffle — a uniform Fisher-Yates permutation bound to a future
Answering verifiable-random.use.x402atlas.com listed $0.005 answered 7 of 7 checks this week 658 ms Everything else
Verifies an agent's Concordium identity card integrity and badge status against
Answering api.craigmbrown.com listed $0.02 answered 7 of 7 checks this week 214 ms Company and compliance
Verify OpenAPI/Swagger document reachability, parseability, operations/auth/serv
Answering http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run listed $0.003 answered 7 of 7 checks this week 920 ms Code and developer
Verify US real-estate licenses (brokers, sales agents, broker companies)
Answering 2s.io listed $0.0072 answered 7 of 7 checks this week 257 ms Company and compliance
Verify a Base transaction actually did what a counterparty says it did
Answering chainverdict.xyz listed $0.02 answered 7 of 7 checks this week 318 ms Market data
Verify a URL
Answering goodsong.dev listed $0.005 answered 7 of 7 checks this week 442 ms Everything else
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