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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 1153–1188 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.
signalpulse.theaslangroupllc.com signalpulse.theaslangroupllc.com
65%

Multi-platform tokenized-equity premium/discount intelligence for AI trading agents — 24/7 on-chain tokenized stocks (xStocks NVDAx, Ondo Global Markets NVDAon, Dinari dShares where readable) vs the underlying share: premium/discount in bps…

paid API x402
$357.10 · 30d 1,118 tx
pnl.lonestaroracle.xyz pnl.lonestaroracle.xyz
65%

Wallet realized and unrealized PnL — per-token profit and loss and cost basis for any EVM address

paid API x402
$10.10 · 30d 113 tx
centry.cybercentry.co.uk centry.cybercentry.co.uk
65%

Secures websites, dApp frontends, and web interfaces using OWASP-powered deep vulnerability detection.

paid API x402
$3.00 · 30d 30 tx
agents.chain.link agents.chain.link
65%

Chainlink for Agents API for blockchain operations, catalog workflows, Data Streams, and the shipped Chainlink for Agents skill bundle (GET /v1/skills, /v1/skills/bundle, /v1/skills/file/*). Supports x402 USDC payments for access.

paid API offline x402
$242.32 · 30d 22,319 tx
api.x402video.com api.x402video.com
65%

Seedance 2.0 — parametric text-to-video: choose duration (4-15s), resolution (480p/720p/1080p), ratio, seed, audio. Price scales with duration × resolution.

paid API x402
$2.83 · 30d 2 tx
weather.agentic-jp.com weather.agentic-jp.com
65%

List every JMA forecast office (府県予報区) in Japan with its code, Japanese/English name, and class10 sub-regions. Use this to discover valid `:area` values.

paid API offline x402
$4.99 · 30d 272 tx
houjin.agentic-jp.com houjin.agentic-jp.com
65%

Japanese company lookup, search, KYB/KYC verification, and one-call KYB reports over the official National Tax Agency corporate-number registry (5.78M companies). Pay-per-call HTTP API using the x402 payment protocol (USDC on Base / Polygon…

paid API offline x402
$4.99 · 30d 272 tx
search.reversesandbox.com search.reversesandbox.com
65%

Private web search for AI agents — zero logging, no tracking, no human signup required. Pay-per-query with USDC, no API keys or accounts. Multi-engine JSON results. Pass q=query, optional count (1-20), offset.

paid API x402
$0.15 · 30d 73 tx
astatelypleasuredome.com astatelypleasuredome.com
65%

One letter of Kubla Khan, ownable once, ever; price rises with each sale. The letter index goes in the path: /api/poem/char/{i}. GET /api/ledger (free) lists letters already owned; GET /api/poem (free) has metadata.

paid API x402
$0.01 · 30d 7 tx
stableapify.dev stableapify.dev
65%

Fetch items from an Apify Actor run default dataset. Body: { "token": "..." } from actors/call. First call per wallet pays via x402 proportional to Apify usage (capped at $1.00); SIWX replay is free. Poll /api/actors/status until terminal —…

paid API x402
$2.58 · 30d 21 tx
voice.forgemesh.io voice.forgemesh.io
65%

Persona voice generation and expressive TTS for agents. Generate inline WAV speech with 20 voices including Assistant, Storyteller, Velvet, Urgent, speed controls, quality controls, and up to 500 chars for $0.005.

paid API x402
$0.24 · 30d 66 tx
assay.nominal-labs.com assay.nominal-labs.com
65%

Quality score for any x402 service, earned by real paid probes with on-chain receipts: composite 0-100, component breakdown (payment settlement, schema conformance, ground-truth accuracy, LLM-judged quality), 7-day trend, probe count. Score…

paid API x402
$0.02 · 30d 4 tx
autopulse.theaslangroupllc.com autopulse.theaslangroupllc.com
65%

Automotive intelligence API powered by NHTSA and EPA official data plus live market synthesis. 11 endpoints: safety recall lookup by VIN, reliability and complaint analysis, step-by-step DIY repair guides, vehicle comparison, market value w…

paid API offline x402
$357.10 · 30d 1,118 tx
human.twin3.ai human.twin3.ai
65%

Human verification for AI agents — proof of humanity, sybil resistance, and 'is this wallet a real person' answers in one paid call. Returns two ZK-style outputs about any EVM wallet: (1) total humanity score 0-255 (15 = baseline reCAPTCHA,…

paid API x402
$0.09 · 30d 90 tx
globalrules-api.onrender.com globalrules-api.onrender.com
65%

List all 110 countries covered by the GlobalRules country-facts API, returned as ISO 3166-1 alpha-2 codes with country names. Use this endpoint first to discover which countries you can query for practical travel and business facts such as …

paid API x402
$0.56 · 30d 55 tx
api.predictionmarketdata.io api.predictionmarketdata.io
65%

List valid PMCS taxonomy codes used to filter prediction-market searches.

paid API x402
$0.15 · 30d 94 tx
api.agentfeeds.jp api.agentfeeds.jp
65%

Freshness heartbeat only (list date, address count, fetched_at) for both Japan MOF and OFAC sanctions lists. No addresses. Cheapest polling entry point for change-detection loops.

paid API x402
$0.16 · 30d 23 tx
api.agentx402.ai api.agentx402.ai
65%

Agent-native retrieval over x402 — send a query and, optionally, source URLs to index: get back ranked, cited chunks. Hybrid retrieval by default (dense vectors + BM25 keyword search, fused and reranked) beats vector-only search on exact to…

paid API x402
$0.16 · 30d 16 tx
win.oneshotagent.com win.oneshotagent.com
65%

Deep person research — returns enrichment, social profiles, articles, and dossier

paid API x402
$33.39 · 30d 684 tx
api.demandex.dev api.demandex.dev
65%

Paid ($0.01 USDC via x402). Returns the top 20 active opportunity cards by score as TEASERS — { id, slug, title, category, score, signalCount, lastSeen } only. No evidence and no productAngle (buy GET /v1/opportunity for the full card). Whi…

paid API offline x402
$16.29 · 30d 570 tx
api.trustsource.cc api.trustsource.cc
65%

Check whether a domain's TLS/SSL certificate is valid, trusted, and not expiring before connecting to it. Performs a live handshake and returns a 0–100 score and tier (VALID/WEAK/EXPIRING/EXPIRED/UNTRUSTED/INVALID) with chain trust, days-to…

paid API x402
$0.30 · 30d 106 tx
cryptyx.ai cryptyx.ai
65%

CRYPTYX is the intelligence layer for autonomous trading agents — the same institutional-grade research stack that powers professional desks, priced per call in USDC. 200+ digital assets, 440+ metrics, 150+ signals across 8 factor classes, …

paid API x402
$4.86 · 30d 234 tx
402.com.tr 402.com.tr
65%

Pay-per-call onchain data & AI reports for the Base agent economy — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, and Claude-written AI verdicts. Paid per request in USDC over x402, no API keys.

paid API offline x402
$9.19 · 30d 189 tx
truthpulse.theaslangroupllc.com truthpulse.theaslangroupllc.com
65%

Latest releases feed for researcher and journalist agents. Returns the newest FOIA releases, declassified documents, and court rulings governments and agencies have just made public globally.

paid API offline x402
$357.10 · 30d 1,118 tx
x402.cheetahsecurity.de x402.cheetahsecurity.de
65%

AML / counterparty screening for a Base agent wallet (OFAC sanctions + exposure + scam list)

paid API x402
$0.61 · 30d 17 tx
bizintel-api.hahavoid0.workers.dev bizintel-api.hahavoid0.workers.dev
65%

Fetches current Ethereum Mainnet gas price from the public DoH RPC pipeline.

paid API live x402
$0.38 · 30d 19 tx
claudelines.com claudelines.com
65%

Buy and download a paid status line. The publisher sets the price and receives the payment directly with no platform fee. Returns the script, integrity hash, and install instructions. Review the script before installing.

paid API x402
$4.92 · 30d 3 tx
eagle.quickai.build eagle.quickai.build
65%

Eagle Eye v1.0.0 — U.S. enterprise-grade wallet compliance screening. OFAC SDN + Circle USDC blacklist on Base. Signed audit receipts. Certified check with wallet activity profile (+$0.001).

paid API x402
$0.23 · 30d 10 tx
seo-data-extractor.underscoredone.com seo-data-extractor.underscoredone.com
65%

Give this API a web address and it will visit that page, then hand back everything an SEO professional needs to know: the page title, meta description, meta keywords, robots instructions, canonical link, H1/H2/H3 headings, how many links ar…

paid API x402
$30.68 · 30d 57 tx
agent-trust-layer.agent-trust-layer.workers.dev agent-trust-layer.agent-trust-layer.workers.dev
65%

Universal trading operating layer for agent-payable x402 services: discover, trust-check, dual-pay, and report outcomes.

paid API offline x402
$0.01 · 30d 1 tx
gate402.app gate402.app
65%

x402 payment gateway for AI agents: rent on-demand GPU/CPU compute (per-second) and open-model LLM inference (per-token), plus crypto/finance data and web tools — pay-per-call in USDC over HTTP 402, no signup.

paid API offline x402
$0.07 · 30d 12 tx
signal.quickai.build signal.quickai.build
65%

Quick Signal TA v3.1.0 — Crypto technical analysis. Ten indicators with natural-language assessments. Query params: token (required), timeframe, bollinger_period, rsi_period.

paid API x402
$0.23 · 30d 10 tx
autonomy-api-network.onrender.com autonomy-api-network.onrender.com
65%

Score a website's visibility to AI search and answer engines with crawler access, llms.txt, structured entity, answerability, freshness, and prioritized remediation checks.

paid API x402
$0.01 · 30d 2 tx
leetspeak-translator.underscoredone.com leetspeak-translator.underscoredone.com
65%

Takes a piece of text and either turns it into leetspeak (swapping some letters for numbers and symbols, like 'hello' becoming 'h3110') or turns leetspeak back into normal, easy-to-read words. The same words always produce the same result, …

paid API x402
$30.68 · 30d 57 tx
govspendpulse.theaslangroupllc.com govspendpulse.theaslangroupllc.com
65%

EU government tender / public procurement search across all 27 EU member states — live TED (Tenders Electronic Daily) data. Returns contract notices with value, contracting authority, CPV category, and deadline. Free EU data, for business-d…

paid API offline x402
$357.10 · 30d 1,118 tx
domain-availability-checker.underscoredone.com domain-availability-checker.underscoredone.com
65%

Give this API up to 10 domain names and it will tell you whether each one has a registration record on file with the official registry. It uses RDAP — the modern, structured replacement for WHOIS — so there is no messy free-text parsing. Ea…

paid API x402
$30.68 · 30d 57 tx