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 613–648 of 1,919
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.
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
store.cryptotradecalc.com store.cryptotradecalc.com
65%

reg-watch-changes: Incremental feed of US Federal Register rules, proposed rules, and notices published since a date you supply. Built for scheduled polling: pass since=YYYY-MM-DD and get only documents you have not seen, each with its docu…

paid API x402
$0.01 · 30d 1 tx
x402-used-car-quickcheck-production.up.railway.app x402-used-car-quickcheck-production.up.railway.app
65%
paid API x402
$0.02 · 30d 2 tx
stableninja.dev stableninja.dev
65%

Get Waze alerts and traffic jams in a bounding box or radius.

paid API x402
$0.17 · 30d 17 tx
socialx402.com socialx402.com
65%

Scrape Creators · Facebook — Company Ads

paid API x402
$197.28 · 30d 3,288 tx
kette.halowerk.com kette.halowerk.com
65%
paid API x402
$0.99 · 30d 240 tx
doc.halowerk.com doc.halowerk.com
65%
paid API x402
$0.99 · 30d 240 tx
defi.halowerk.com defi.halowerk.com
65%
paid API x402
$0.99 · 30d 240 tx
freshproof-api-mainnet.up.railway.app freshproof-api-mainnet.up.railway.app
65%
paid API x402
$0.04 · 30d 5 tx
flipr-x402.fly.dev flipr-x402.fly.dev
65%

On-chain coin flip game on Base (Chainlink VRF) — the only game-shaped endpoint in the x402 verified-providers registry. Other registered providers are AI agent meshes / data lookups / DeFi feeds (read APIs returning JSON); flipr is bidirec…

paid API offline x402
$0.01 · 30d 7 tx
x402.aurelianflo.com x402.aurelianflo.com
65%

x402-protected paid API on x402.aurelianflo.com (discovered via Coinbase facilitator).

paid API x402
$134.07 · 30d 40 tx
dermi-znuq.onrender.com dermi-znuq.onrender.com
65%

x402-protected paid API on dermi-znuq.onrender.com (discovered via Coinbase facilitator).

paid API x402
$0.07 · 30d 7 tx
wallet-funding-trace-mcp.mtree.workers.dev wallet-funding-trace-mcp.mtree.workers.dev
65%

x402-protected paid API on wallet-funding-trace-mcp.mtree.workers.dev (discovered via Coinbase facilitator).

paid API offline x402
$2.62 · 30d 32 tx
url-extractor.x402.paysponge.com url-extractor.x402.paysponge.com
65%

x402-protected paid API on url-extractor.x402.paysponge.com (discovered via Coinbase facilitator).

paid API x402
$30.68 · 30d 57 tx
approval-revoke-mcp.mtree.workers.dev approval-revoke-mcp.mtree.workers.dev
65%

x402-protected paid API on approval-revoke-mcp.mtree.workers.dev (discovered via Coinbase facilitator).

paid API offline x402
$2.62 · 30d 32 tx
market2000.xyz market2000.xyz
65%

x402-protected paid API on market2000.xyz (discovered via Coinbase facilitator).

paid API x402
$0.89 · 30d 37 tx
wallet-labels-mcp.mtree.workers.dev wallet-labels-mcp.mtree.workers.dev
65%

x402-protected paid API on wallet-labels-mcp.mtree.workers.dev (discovered via Coinbase facilitator).

paid API offline x402
$2.62 · 30d 32 tx
agentoracle.co agentoracle.co
65%

Pre-action verification layer for AI agents. Natural-language claim or query in, structured JSON with summary, key facts, sources, confidence score, and JWS-signed receipt out. Offline-verifiable per draft-krausz-verification-state. $0.02 U…

paid API x402
$0.12 · 30d 6 tx
wallet-cex-flows-mcp.mtree.workers.dev wallet-cex-flows-mcp.mtree.workers.dev
65%

x402-protected paid API on wallet-cex-flows-mcp.mtree.workers.dev (discovered via Coinbase facilitator).

paid API offline x402
$2.62 · 30d 32 tx
defi-position-health-mcp.mtree.workers.dev defi-position-health-mcp.mtree.workers.dev
65%

x402-protected paid API on defi-position-health-mcp.mtree.workers.dev (discovered via Coinbase facilitator).

paid API offline x402
$2.62 · 30d 32 tx
mev-history-mcp.mtree.workers.dev mev-history-mcp.mtree.workers.dev
65%

x402-protected paid API on mev-history-mcp.mtree.workers.dev (discovered via Coinbase facilitator).

paid API offline x402
$2.62 · 30d 32 tx
deepgram.x402.paysponge.com deepgram.x402.paysponge.com
65%

x402-protected paid API on deepgram.x402.paysponge.com (discovered via Coinbase facilitator).

paid API x402
$3.29 · 30d 201 tx
roger-tomfoolish-liam.ngrok-free.dev roger-tomfoolish-liam.ngrok-free.dev
65%

x402-protected paid API on roger-tomfoolish-liam.ngrok-free.dev (discovered via Coinbase facilitator).

paid API x402
$34.17 · 30d 30 tx
protocol.origindao.ai protocol.origindao.ai
65%

x402-protected paid API on protocol.origindao.ai (discovered via Coinbase facilitator).

paid API x402
$0.01 · 30d 4 tx
svm402.com svm402.com
65%

Discover newly active Solana tokens ranked by genuine organic activity, filtered to exclude wash trading. Optionally filter by minimum organic score and holder count. Call this to find tokens worth researching further with /analyze or /safe…

paid API x402
$0.51 · 30d 12 tx
wurkapi.fun wurkapi.fun
65%

x402-protected paid API on wurkapi.fun (discovered via Coinbase facilitator).

paid API x402
$22.67 · 30d 93 tx
x402.openwebninja.com x402.openwebninja.com
65%
paid API x402
$0.19 · 30d 62 tx
markt.halowerk.com markt.halowerk.com
65%
paid API x402
$0.99 · 30d 240 tx
agenttoll-pi.vercel.app agenttoll-pi.vercel.app
65%
paid API x402
$0.16 · 30d 58 tx
markdown-to-html.api.klymax402.com markdown-to-html.api.klymax402.com
65%

Convert markdown text to HTML

paid API x402
$7.40 · 30d 1,342 tx
agents.freederia.com agents.freederia.com
65%

Complete Freederia research package by R2 prefix or JSON key: record.json, Markdown/HTML bodies where available, manifest, quality report, ontology graph, ledger event, source or basis JSON, and evidence boundary for RAG and technical intel…

paid API x402
$0.06 · 30d 6 tx
http-headers.api.klymax402.com http-headers.api.klymax402.com
65%

Analyze HTTP response headers for a URL

paid API x402
$7.40 · 30d 1,342 tx