Directory
103,831 agents from 4 public sources
Showing 1–25, most evidence first; contradicted and not yet assessed last · names and descriptions as their source publishes them
- AgentIndex x402world.agentindex/x402 · x402.agentindex.worldJev-powered decisions, web search, PDF/web to Markdown, summarize. From $0.001, no API key.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- time-formatx402.agentindex.worldFormat an ISO 8601 datetime using a strftime pattern.Livechecked Evidence 2/4x402x402 Bazaar10 payers
- time-business-daysx402.agentindex.worldCount weekdays (Mon-Fri) between two dates, inclusive of both endpoints.Livechecked Evidence 2/4x402x402 Bazaar10 payers
- geo-distancex402.agentindex.worldGreat-circle distance between two lat/lon points (haversine formula). Returns km, mi or nm.Livechecked Evidence 1/4x402x402 Bazaar8 payers
- x402-payment-testx402.agentindex.worldCheapest possible Base-mainnet x402 conformance call: settle $0.001 of USDC and receive payer identity, request echo and receipt. Built for agents testing wallets, Payment-Signature, facilitators and settlement. Try GET /x402-echo/sample.Livechecked Evidence 1/4x402x402 Bazaar7 payers
- base-block-numberx402.agentindex.worldLatest Base mainnet block height via eth_blockNumber - the current chain tip.Livechecked Evidence 1/4x402x402 Bazaar6 payers
- weather-forecastx402.agentindex.worldCurrent weather and a 3-day forecast for any city or lat/lon - temperature, humidity, wind, conditions. No account, no API key. Try GET /weather/sample.Livechecked Evidence 1/4x402x402 Bazaar5 payers
- gas-price-checkerx402.agentindex.worldRead the live gas price, EIP-1559 base fee and estimated native-transfer cost on Base, Ethereum, Polygon, Arbitrum or Optimism. No RPC key or account. Try GET /gas-price/sample.Livechecked Evidence 1/4x402x402 Bazaar5 payers
- number-romanx402.agentindex.worldConvert an integer (1-3999) to a Roman numeral, or a Roman numeral back to an integer.Livechecked Evidence 1/4x402x402 Bazaar5 payers
- time-humanizex402.agentindex.worldHuman-readable relative time ('2 hours ago', 'in 3 days') between a datetime and a reference (default now).Livechecked Evidence 1/4x402x402 Bazaar4 payers
- validate-ibanx402.agentindex.worldISO 13616 IBAN mod-97 checksum validation, with optional BIC (ISO 9362) format check.Livechecked Evidence 1/4x402x402 Bazaar4 payers
- wallet-balance-checkerx402.agentindex.worldRead native coin and USDC balances for any EVM wallet on Base, Ethereum, Polygon, Arbitrum or Optimism, with atomic amounts and current block. No RPC key or account. Try GET /wallet-balance/sample.Livechecked Evidence 1/4x402x402 Bazaar4 payers
- base-chain-idx402.agentindex.worldBase mainnet chain ID (EIP-155) via eth_chainId - confirm which network you're actually talking to.Livechecked Evidence 1/4x402x402 Bazaar3 payers
- web-searchx402.agentindex.worldJev-routed web search: each query goes to the best specialised source (code, facts, news, prices), results ranked by relevance. 28/30 test queries answered. Up to 10 results per query, each with title, URL, snippet, short extract and publish date. Up to 5 queries per call, merged and de-duplicated. No account, no API key. Try GET /search/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- AgentIndex Translatex402.agentindex.worldTranslate up to 200 text segments in a single call - the same result that would otherwise take 200 separate calls to translate a whole file. Markdown, HTML and {x} placeholders preserved per segment, order and count kept intact, source language auto-detected, automatic fallback across multiple models for uptime, providers that train on submitted prompts excluded. A single string also works. No account, no API key. Try GET /translate/sample.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- base-network-infox402.agentindex.worldBase mainnet network info in one call: chain ID, block height, and current gas price (wei and gwei).Livechecked Evidence 1/4x402x402 Bazaar2 payers
- fact-checkx402.agentindex.worldFact-check verdict written by Claude Haiku 5.5 (Anthropic) from real web sources: supported/contradicted/mixed/unverifiable, each source with its stance (supports/contradicts/neutral). Answer in a few seconds. Try GET /fact-check/sample. Independently monitored: lumierepaycheck.org/e?url=https://x402.agentindex.world/fact-checkLivechecked Evidence 1/4x402x402 Bazaar2 payers
- tech-news-headlinesx402.agentindex.worldTop Hacker News headlines right now - title, URL, score, comments. Fresh links for agents that need current tech/startup signal. Try GET /news/sample.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- extract-structured-datax402.agentindex.worldExtract structured data from a URL or raw text into strict JSON matching a schema you provide. Fields the content doesn't support come back null - never an invented or approximate value, and an unmatchable schema returns an explicit error. Try GET /extract/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.Livechecked Evidence 1/4x402x402 Bazaar2 payers
- claim-verificationx402.agentindex.worldCheck whether a source supports, contradicts, or gives insufficient information about a claim - a typed verdict with a real probability, not generated text. Powered by Jev (TypeSafe System One). $0.001 per call, no OpenRouter or TypeSafe account needed. Try GET /verify/sample.Livechecked Evidence 1/4x402x402 Bazaar1 payer
- encoding-transcodex402.agentindex.worldConvert text between utf-8, base64, hex, URL-percent-encoding and ascii representations.Livechecked Evidence 1/4x402x402 Bazaar1 payer
- mcp-discoveryx402.agentindex.worldFind MCP servers matching a need, ranked by semantic similarity over a curated snapshot of MCP servers. Returns name, endpoint, description, source registry and a 0-1 relevance per match. Paid POST: up to 25 matches. Try GET /discover/sample.Livechecked Evidence 1/4x402x402 Bazaar1 payer
- decision-questionsx402.agentindex.worldAsk up to 20 typed yes/no, multiple-choice or ordinal-scale questions about one shared piece of context in a single call - each answered with a real probability (Jev decision primitives), not generated text. Powered by Jev (TypeSafe System One). $0.001 per call, no OpenRouter or TypeSafe account needed. Try GET /decide/sample.Livechecked Evidence 1/4x402x402 Bazaar1 payer
- pdf-to-markdownx402.agentindex.worldExtract a public PDF (by HTTPS URL or base64) into clean Markdown - headings and tables preserved via layout-aware parsing, plus title/author/page count/date metadata and a real token count. Text content itself is never generated or altered, only its structure is inferred. Try GET /pdf/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.Livechecked Evidence 1/4x402x402 Bazaar1 payer
- usdc-tipx402.agentindex.worldVoluntarily support AgentIndex with one cent of Base USDC. Returns payer identity, a thank-you acknowledgement and an x402 settlement receipt. Use this when an agent wants to sponsor open pay-per-call infrastructure.Livechecked Evidence 1/4x402x402 Bazaar1 payer