Agent directory
Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.
Why this order?
aviationstack.mpp.tempo.xyz
Real-time and historical flight tracking, airports, airlines, and schedules.
govlaws.ai
Current U.S. federal regulation lookup, semantic search, and change tracking with provenance-rich responses from official government sources.
bigquery.google.gateway-402.com
Run SQL over BigQuery and 255 public datasets: crypto, weather, healthcare, genomics, patents, GitHub, PyPI, Stack Overflow, census, Wikipedia, real estate, transportation, satellite imagery, NLP corpora, SEC filings, and IoT.
api.socialintel.dev
Find Instagram influencers across 33M+ profiles by niche, country, city, follower count, and gender. Returns username, bio, follower count, engagement metrics, business contact email (~50% coverage), and creator categories for marketing dis…
ai-scraper-api.duckdns.org
Pay-per-request web data API: scrape clean HTML (0.005 USDC), convert pages to token-efficient markdown (0.005 USDC), or extract structured JSON with your own schema (0.02 USDC). Paid on Solana mainnet via x402 protocol. No accounts or API …
x402.goldrush.dev
x402-native blockchain data — balances, NFTs, transactions, DEX, pricing across 100+ chains. Currently on Base Sepolia testnet.
api.neynar.com
Farcaster protocol data API (users, casts, feeds, reactions). x402 pay-per-request in USDC on Base.
x402.robtex.com
DNS, IP, AS, and Lightning Network intelligence. 53 endpoints covering DNS lookups, reverse DNS, IP geolocation, BGP/ASN analysis, reputation scoring.
flylabs.fun
Pay-per-call data APIs for AI agents. YouTube transcripts and engagement data settled in USDC on Base via x402. Versioned JSON schemas, no signup, no keys. Coinbase CDP facilitator.
cdp.bitcoinsapi.com
Satoshi API is Bitcoin fee intelligence for AI agents. It gives wallets, bots, and agent workflows send-now-or-wait timing guidance, next-block fee pressure, transaction context, and fee-estimator accuracy through x402 pay-per-call endpoint…
fov.brij.fi
Email finder and verifier API, paywalled per-call with x402 (USDC on Solana).
news-x402.com
AI-friendly JSON API for global news intelligence built on GDELT. Provides recent news, sentiment, geographic distribution, translingual coverage, and entity graph endpoints via x402 payments on Base USDC.
api.dynsuplabs.com
Normalized state Department of Insurance bulletins and NAIC Model Law 668 adoption feed. Micropayment-gated REST API via x402 protocol. Supports Polygon (eip155:137) and Arbitrum (eip155:42161) chains with USDC payments. Pricing: $0.001/req…
txdecode.com
Decode any confirmed Base (mainnet) transaction into a human-readable action plus normalized asset movements (token, amount, USD value). Pay-per-call via x402 — $0.005 USDC, no signup, no API key.
api.newsmesh.co
Real-time news API for AI agents. Search and filter articles from thousands of global sources.
agents.tunelo.co.za
South African x402 micropayment APIs on Polygon: a live government tender feed ($0.02 USDC/call) and a SARS crypto-tax estimate ($0.005 USDC/call). Pay-per-call in USDC, no signup, built with @x402/express v2.
api.relayshield.net
Threat intelligence and identity-risk API: breach exposure, infostealer log detection, SIM-swap and session-hijack checks, ransomware victim lookup, and AI-agent-specific security checks (malicious MCP server detection, prompt-injection bre…
timezone-toolkit.agishub.com
Timezone converter, world clock, DST-aware date math and meeting scheduler for AI agents. Pay-per-call x402 endpoints (USDC on Base) covering timezone conversion, world clock / now-in-city, city or country to IANA timezone lookup, UTC offse…
sippar.network
Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change and volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener plus on-chain reads; response includes the require…
ip402.xyz
Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address.
twit.use.x402atlas.com
Unofficial third-party bridge to X (Twitter) advanced search. One GET /search endpoint takes structured filters or raw X search syntax and returns up to 20 tweets per page as JSON, with author profile, engagement metrics and a pagination cu…
api.pogo-tb.nl
Dutch open-government data for AI agents via x402 on Base USDC: RDW vehicle records (incl. fuel type + CO2 emissions + APK inspection risk), BAG address and building lookups, OV public-transport departures, postcode search, reverse geocodin…
fortyeight-rescue.jaeber2se.chatgpt.site
Source-verified developer bounty discovery, due-diligence briefs, and 30-day private GitHub alert feeds paid per call with x402 USDC on Base.
toolrail.dev
Pay-per-call utility API for AI agents: PDF generation (invoice/report/contract from JSON or raw HTML), public holidays & business-day math for 187 countries, EU VAT rates for 44 countries + official VIES validation, ECB FX rates since 1999…
x402.obolpay.xyz
Pay-per-call premium Base-network data feed for AI agents, settled in USDC on Base. Free preview inside the 402 challenge, prepaid GASLESS vouchers, EIP-191 signed receipts, freshness SLA with fail-closed, delta delivery.
agent.connskill.com
SEO and SERP research plus real-world actions for AI agents: Google search results, keyword volume and CPC, ranked keywords, backlink profiles, competitor analysis, SMS verification and social marketing orders. Operated by a German company …
semagram.io
Semantic search over Telegram — 1M+ channels, groups and bots. Agents query GET /api/agent/search and pay per request in USDC on Base or Solana via x402; price scales with result count ($0.01 per 100 results).
circadian-agent.com
Pay-per-call web data APIs run by a disclosed autonomous AI agent business. extract turns any public URL into clean Markdown plus metadata for $0.01; meta returns OpenGraph, JSON-LD, feeds and canonical data as one JSON for $0.005; brief or…
difftool.leeworks.dev
Structural diff + patch API for agents: text and JSON diffs, RFC-6902 JSON Patch generation and application. Deterministic output suitable for automated pipelines. 0.03 USDC per call via x402 on Base.
midax402.com
MIDAX402 is an AI market-intelligence service for autonomous agents. Each paid request returns a structured market analysis with an explicit verdict and confidence score, generated by a dual-LLM engine that reports its synthesis status hone…
api.manyhands.uk
Deterministic snapshots, change checks, deadline scans, citation packs, and PDF evidence for supported UK official sources, paid per call in USDC on Base through x402 v2.
cyberdyne.linuxlabs.dk
Two machine-payable HTTP APIs over x402 (USDC on Base, PayAI keyless facilitator — no account, no API key). POST /api/seo-audit fetches a URL and returns a weighted on-page technical SEO audit (title, meta, canonical, Open Graph, headings, …
agent-hyper.frostylabs.ai
Full market intelligence for any Hyperliquid market — core crypto perps or HIP-3 equities/commodities/FX. Prices, funding regime (realized + cross-venue predicted), order-book depth & imbalance, aggressor flow, 24h momentum, plus an AI anal…
verdoc.dev
Deterministic GitHub repository analysis for coding agents. Returns an AGENTS.md with build and test commands quoted from the repository's own manifests, each tagged with the file it came from, plus a directory map and entry points. No lang…
api.jomofagan.com
Pay-per-call API for AI agents: clean webpage extraction to markdown/text, schema-validated structured JSON extraction, HS/tariff code classification, and trade-compliance document (commercial invoice / packing list) field extraction. Price…
comrades-of-war.com
Research nearly five years of a popular Spanish Call of Duty clan and a rich SA-MP role-play community corpus. The archive preserves 110,023 posts and exposes 39,309 curated public posts for free search. Selected pages return citation-ready…