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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 335 AI 127 Finance 85 Verification 60 Blockchain 57 Other 22 Content 18 Search 14 Web 12 Compute 12 Infrastructure 10 Inference 9
sort Quality Revenue (30d) Recently updated Name
Showing 577–612 of 1,904
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.
atq6wtkp6k.execute-api.us-east-1.amazonaws.com atq6wtkp6k.execute-api.us-east-1.amazonaws.com
65%

Return a 0-100 domain security score across 6 identity-risk dimensions (breach exposure, infostealer density, ransomware exposure, session exposure, CVE exposure, threat-actor targeting) with a letter grade and plain-English risk factors. C…

paid API x402
$0.00 · 30d 1 tx
finance.toonhaus.dev finance.toonhaus.dev
65%

Insider transactions (P=buy,S=sell,M=exercise) + sentiment

paid API x402
$0.32 · 30d 58 tx
x402-gateway-production.up.railway.app x402-gateway-production.up.railway.app
65%

Pay-per-call API gateway for AI agents. 108 tools including image and video generation, LLM inference (72 models), code execution, audio transcription, voice cloning, crypto data, wallet analytics, travel, ENS, IPFS, web search, web scrapin…

paid API offline x402
$7.33 · 30d 2,817 tx
api.auor.io api.auor.io
65%

Subdivision information per country for the `/open-holidays/v1/*` endpoints

paid API x402
$1.41 · 30d 75 tx
mailcheck.hugen.tokyo mailcheck.hugen.tokyo
65%

6 email validation checks in one call — syntax (RFC 5322), MX record verification, disposable detection (5,000+ domains), free provider identification, role-based address detection (admin@, info@), and typo suggestion. Returns a 0-1 confide…

paid API x402
$26.74 · 30d 2,334 tx
x402.presenceoperations.com x402.presenceoperations.com
65%
paid API x402
$100.08 · 30d 8 tx
agent-budget-guard.onrender.com agent-budget-guard.onrender.com
65%

Check budget and approve/deny AI agent spending with x402 payment verification

paid API x402
$1.24 · 30d 40 tx
ai-agent-payment-safety-stack.onrender.com ai-agent-payment-safety-stack.onrender.com
65%

Verify counterparty name, invoice registration number, and corporate number before AI-agent payment. Format check and name match only. No tax or legal advice.

paid API x402
$1.24 · 30d 40 tx
api.agentnewsstand.com api.agentnewsstand.com
65%

Market data and web intelligence for autonomous agents: tokenized-asset candles, EOD history, SEC filings, earnings, US macro, FRED calendar, one-call trading context, plus web tools (search, reader, paywall unlock, screenshots, URL safety)…

paid API offline x402
$25.08 · 30d 19 tx
x402-vehicle-api-production.up.railway.app x402-vehicle-api-production.up.railway.app
65%

UK DVLA vehicle details by registration plate.

paid API x402
$0.34 · 30d 101 tx
402sentinel.com 402sentinel.com
65%
paid API x402
$0.10 · 30d 16 tx
agent-paid-resource-control.onrender.com agent-paid-resource-control.onrender.com
65%

Review paid resource access for AI agents, including resource binding, duplicate payment risk, fulfillment requirements, evidence receipt fields, and reconciliation guidance.

paid API x402
$1.24 · 30d 40 tx
x402.orthogonal.com x402.orthogonal.com
65%

Google Maps search - returns map listings with titles, addresses, latitude/longitude coordinates, ratings, review counts, phone numbers, websites, and categories. More detailed than Places for location-based queries. Use ll parameter for pr…

paid API x402
$0.01 · 30d 1 tx
the-stables-blackbird-api.vercel.app the-stables-blackbird-api.vercel.app
65%
paid API x402
$0.20 · 30d 40 tx
agentcash-fortune-demo-six.vercel.app agentcash-fortune-demo-six.vercel.app
65%

Random fortune — fixed price; x402 exact or MPP one-shot

paid API x402
$0.87 · 30d 176 tx
api.govparse.io api.govparse.io
65%

Which companies just got a US patent, and in what technology? Search recent granted patents (PatentsView, CC BY 4.0) by assignee organization (the company), inventor, CPC subclass/section, patent type, or assignee state/country and grant-da…

paid API x402
$0.15 · 30d 3 tx
dns-email-hygiene.relayhop.workers.dev dns-email-hygiene.relayhop.workers.dev
65%

Convert an amount between two currencies with synthesized bid/ask spread and effective rate. Query: ?from=USD&to=EUR&amount=100&spread_bps=50. Source: ECB via frankfurter (keyless).

paid API offline x402
$0.25 · 30d 26 tx
x402.radhikachain.xyz x402.radhikachain.xyz
65%

Telemetria de intrusion en vivo, capturada en el kernel con eBPF/XDP por una red de 10 guardianes en 3 continentes. No es una lista de IPs comprada ni un feed reempaquetado: son 540,390 observaciones y 9,477 ataques CONFIRMADOS por quorum d…

paid API x402
$1.17 · 30d 67 tx
api.healthparse.io api.healthparse.io
65%

Search hospital price-transparency negotiated rates by billing code (CPT/HCPCS/MS-DRG), state, payer, hospital CCN, or rate type. Answers: what do payers actually pay for this procedure at these hospitals? Source: hospital-published MRFs.

paid API x402
$0.54 · 30d 12 tx
api.memoryapi.org api.memoryapi.org
65%

Translate text between 11 languages — EN ES FR DE IT PT ZH JA AR RU KO

paid API x402
$0.60 · 30d 103 tx
peerlytics.xyz peerlytics.xyz
65%

Protocol-level ZKP2P analytics for agents that need activity, volume, liquidity, maker, taker, and platform trend context.

paid API x402
$80.67 · 30d 138 tx
cron.memoryapi.org cron.memoryapi.org
65%

Register a persistent cron schedule that survives session termination. Agent specifies URL, HTTP method, interval, and duration. Runs even when the agent is offline.

paid API x402
$0.60 · 30d 103 tx
free-api-resell.relayhop.workers.dev free-api-resell.relayhop.workers.dev
65%

x402 pay-per-call access to free public data APIs (DeFi yields, prediction markets, crypto candles) on Base. No account, no API key.

paid API offline x402
$0.25 · 30d 26 tx
dns-intel-api-production.up.railway.app dns-intel-api-production.up.railway.app
65%
paid API x402
$0.34 · 30d 101 tx
x402-tc-agent-server.vercel.app x402-tc-agent-server.vercel.app
65%
paid API x402
$6.04 · 30d 6 tx
capable-grace-production-ab1c.up.railway.app capable-grace-production-ab1c.up.railway.app
65%

AI-generated executive summary of current market trends, top narratives, and notable momentum shifts.

paid API x402
$0.15 · 30d 11 tx
x402-tools.vercel.app x402-tools.vercel.app
65%

Get the top trending prediction markets on Polymarket, sorted by 24h volume. Returns up to 5 markets by default.

paid API x402
$0.15 · 30d 15 tx
money-agent-production-736f.up.railway.app money-agent-production-736f.up.railway.app
65%

Call when you need open GitHub issues with a parsed USD bounty (Algora/$/USD in title or labels). Optional minUsd and q filter the list. Not a generic GitHub search clone.

paid API x402
$15.05 · 30d 3 tx
depscout.vercel.app depscout.vercel.app
65%

Check an npm package, PyPI package, or GitHub repo and return a DepScout install verdict.

paid API x402
$0.37 · 30d 21 tx
stable-domains-git-ben-upgrade-agentcash-r-bb6a65-merit-systems.vercel.app stable-domains-git-ben-upgrade-agentcash-r-bb6a65-merit-systems.vercel.app
65%

Check domain availability and current registration price.

paid API x402
$20.67 · 30d 14 tx
bundle-maker.vercel.app bundle-maker.vercel.app
65%

Generate a curated bundle of x402 endpoints from a natural-language prompt.

paid API x402
$0.05 · 30d 5 tx
sparky-works.vercel.app sparky-works.vercel.app
65%

Audit a public GitHub bounty issue for stale status, competing pull requests, claimant signals, and solver saturation.

paid API x402
$57.80 · 30d 3 tx
banking-compliance-production.up.railway.app banking-compliance-production.up.railway.app
65%

Generate a compliant social media post for a bank or credit union product. AI-powered with automatic compliance checking against 56 federal rules.

paid API x402
$0.12 · 30d 8 tx
sales-intel-api-production-c525.up.railway.app sales-intel-api-production-c525.up.railway.app
65%
paid API x402
$0.05 · 30d 1 tx
agentproof-murex.vercel.app agentproof-murex.vercel.app
65%

API contract score for agents - measure response stability before automation.

paid API x402
$0.01 · 30d 6 tx
agentspec-one.vercel.app agentspec-one.vercel.app
65%

Inspect MCP tools and return agent-readiness score, risky tools, missing schemas, and marketplace candidates.

paid API x402
$0.37 · 30d 21 tx