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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.

protocol All A2A only Paid APIs Domain verified Has on-chain inflow
category All Data 320 AI 122 Finance 83 Verification 55 Blockchain 54 Other 21 Content 17 Search 14 Web 12 Compute 12 Infrastructure 10 Inference 9
sort Quality Revenue (30d) Recently updated Name
Showing 145–180 of 320
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + domain-verified agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
AviationStack aviationstack.mpp.tempo.xyz
65%

Real-time and historical flight tracking, airports, airlines, and schedules.

paid API data mpp
from $0.01
GovLaws govlaws.ai
65%

Current U.S. federal regulation lookup, semantic search, and change tracking with provenance-rich responses from official government sources.

paid API data mpp
from $0.03
BigQuery API bigquery.google.gateway-402.com
65%

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.

paid API data x402
from $0.00
Social Intel api.socialintel.dev
65%

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…

paid API data x402
from $0.01
Web3 Autonomous Scraper ai-scraper-api.duckdns.org
65%

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 …

paid API data x402
from $0.01
GoldRush x402.goldrush.dev
65%

x402-native blockchain data — balances, NFTs, transactions, DEX, pricing across 100+ chains. Currently on Base Sepolia testnet.

paid API data x402
from $0.00
Neynar api.neynar.com
65%

Farcaster protocol data API (users, casts, feeds, reactions). x402 pay-per-request in USDC on Base.

paid API data x402
from $0.01
Robtex x402.robtex.com
65%

DNS, IP, AS, and Lightning Network intelligence. 53 endpoints covering DNS lookups, reverse DNS, IP geolocation, BGP/ASN analysis, reputation scoring.

paid API data x402
from $0.01
Fly Labs Agentic Market flylabs.fun
65%

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.

paid API data x402
from $0.02
Satoshi API cdp.bitcoinsapi.com
65%

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…

paid API live data x402
from $0.01
Find or Verify fov.brij.fi
65%

Email finder and verifier API, paywalled per-call with x402 (USDC on Solana).

paid API data x402
$0.30 · 30d 6 tx
GDELT News Intelligence API news-x402.com
65%

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.

paid API data x402
$0.21 · 30d 11 tx
Insurance DOI Bulletin Feed (x402) api.dynsuplabs.com
65%

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…

paid API data x402
from $0.01
txdecode txdecode.com
65%

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.

paid API data x402
from $0.01
NewsMesh api.newsmesh.co
65%

Real-time news API for AI agents. Search and filter articles from thousands of global sources.

paid API data x402
from $0.01
Tunelo Agent APIs agents.tunelo.co.za
65%

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.

paid API data x402
from $0.01
RelayShield api.relayshield.net
65%

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…

paid API data x402
from $0.10
timezone-toolkit timezone-toolkit.agishub.com
65%

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…

paid API data x402
from $0.02
Sippar Token Market Data sippar.network
65%

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…

paid API data x402
from $0.10
ip402.xyz ip402.xyz
65%

Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address.

paid API live data x402
$0.66 · 30d 62 tx
Twitter/X Advanced Tweet Search twit.use.x402atlas.com
65%

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…

paid API data x402
from $0.01
pogo-tb.nl -- Dutch Open Data (RDW/BAG/OV) api.pogo-tb.nl
65%

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…

paid API data x402
from $0.00
BountySignal fortyeight-rescue.jaeber2se.chatgpt.site
65%

Source-verified developer bounty discovery, due-diligence briefs, and 30-day private GitHub alert feeds paid per call with x402 USDC on Base.

paid API data x402
from $0.05
Toolrail toolrail.dev
65%

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…

paid API data x402
from $0.00
Obolpay x402 Gateway x402.obolpay.xyz
65%

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.

paid API data x402
from $0.01
CONNSKILL Growth Services agent.connskill.com
65%

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 …

paid API data x402
from $0.03
Semagram semagram.io
65%

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).

paid API data x402
from $0.01
Circadian circadian-agent.com
65%

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…

paid API data x402
from $0.01
difftool difftool.leeworks.dev
65%

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.

paid API data x402
from $0.03
MIDAX402 midax402.com
65%

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…

paid API offline data x402
from $0.03
ManyHands Evidence API api.manyhands.uk
65%

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.

paid API data x402
from $0.01
CyberDyne x402 Services cyberdyne.linuxlabs.dk
65%

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, …

paid API data x402
from $0.01
Hyperliquid Intelligence API (FrostyFi) agent-hyper.frostylabs.ai
65%

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…

paid API data x402
from $0.02
Verdoc verdoc.dev
65%

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…

paid API data x402
from $0.01
x402-extract-api api.jomofagan.com
65%

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…

paid API data x402
from $0.00
Comrades of War — Spanish Gaming Community Archive API comrades-of-war.com
65%

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…

paid API data x402
from $0.02