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A2A earnings → wallet ranking, coverage and attribution

Explore the evidence index

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 473 AI 226 Verification 141 Finance 115 Blockchain 84 Other 51 Content 44 Compute 20 Web 14 Search 13 Inference 9 Media 7
sort Quality Revenue (30d) Recently updated Name
Showing 3097–3132 of 4,738
Why this order?
Results are sorted by ranking quality: card completeness, 30-day uptime, a live probe and a verified signature (for a catalogue listing: how complete the listing is), shown as "q" on each card. Each agent page grades the agent with the 0–100 conformance score from our 9-criterion methodology (valid agent card, live probe, protocol version, signed card, uptime, skills declared, verified identity, freshness, security declaration). Machine-readable schema: conformance.json. No paid placement, no editorial weights.
site.intel.rallylive.ca site.intel.rallylive.ca
q 65

Does https://<domain>/apple-touch-icon.png exist? Requests the path and returns the HTTP status, content type, size and the first 300 characters when it is text. Presence of apple-touch-icon.png tells you about the site's tooling and polici…

paid API x402
$4.43 · 30d 71 tx
data.intel.rallylive.ca data.intel.rallylive.ca
q 65

Local time and time zone for Toulouse right now: IANA zone name, UTC offset, whether daylight saving is in effect and when it next changes, and the current local date-time. Meeting scheduling across zones without an API key. $0.01 per call.…

paid API x402
$4.43 · 30d 71 tx
agent-intelligence-platform.fhochard.workers.dev agent-intelligence-platform.fhochard.workers.dev
q 65

Prioritize live EU procurement opportunities for a supplier CPV profile, with ranked fit, deadline and published value context in one answer.

paid API x402
$0.02 · 30d 2 tx
ai-mail.sh ai-mail.sh
q 65

New @ai-mail.sh email inbox for an AI agent: 30 days, up to 500 incoming emails. Receive-only; codes and verification links extracted. Docs: https://ai-mail.sh/llms.txt

paid API x402
$0.05 · 30d 1 tx
safe.cyberwarex.com safe.cyberwarex.com
q 65

Score a URL for phishing risk before an agent opens or trusts it. Keyless, deterministic heuristics - typosquat / homoglyph of a known brand, punycode / mixed-script hosts, credentials-in-URL, raw-IP hosts, suspicious TLDs, over-deep subdom…

paid API x402
$11.97 · 30d 1,715 tx
odds.rjhsignaltech.workers.dev odds.rjhsignaltech.workers.dev
q 65

AI-model probability estimate for a yes/no question that resolves by a date: probability, rationale, drivers and what to watch, anchored on live prediction-market prices when they exist. Not a calibrated or track-recorded forecast. AI forec…

paid API x402
$53.71 · 30d 1,039 tx
presign-guard.onrender.com presign-guard.onrender.com
q 65

Is this transaction, approval or signature safe to sign? Check it before your AI agent or wallet signs it: pre-sign verdict (green/orange/red + reason codes) for EVM transactions, token approvals and Permit/Permit2/EIP-3009/Seaport signatur…

paid API x402
$11.69 · 30d 140 tx
torii-gateway-production.ichis-lab.workers.dev torii-gateway-production.ichis-lab.workers.dev
q 65

Tell whether a given date is a Japanese business day. Japanese national holidays and business-day calculations derived from the Cabinet Office official CSV. Returns holidays for a given year, plus business-day arithmetic used by invoicing, …

paid API x402
$0.06 · 30d 6 tx
finance-api.kdlcfa.workers.dev finance-api.kdlcfa.workers.dev
q 65

Ethereum (ETH-USD) spot price, delayed, via Yahoo Finance

paid API x402
$1.81 · 30d 82 tx
api.koreafilings.com api.koreafilings.com
q 65

AI summaries for the most recent DART filings of a Korean ticker

paid API x402
$0.04 · 30d 9 tx
doctor.promoclube.online doctor.promoclube.online
q 65

Full paid x402 diagnostic JSON for a target endpoint.

paid API x402
$0.05 · 30d 5 tx
veridictum.legal veridictum.legal
q 65

Verify one legal citation. Body: {"citation": "<string>"} - full ("Miranda v. Arizona, 384 U.S. 436 (1966)") or bare ("384 U.S. 436"); the case name enables mismatch detection. Deterministic: regex plus cache / local corpus / CourtListener,…

paid API x402
$0.16 · 30d 7 tx
data.finery.cc data.finery.cc
q 65

Search Singapore MOE schools by name or postal code (optional level filter). Results include the school directory joined with subjects offered, CCAs, MOE programmes and distinctive programmes.

paid API x402
$7.72 · 30d 5 tx
agents.forwardlane.com agents.forwardlane.com
q 65

Searches repository names and properties. Returns a paginated envelope with items, total, page, page_size, and total_pages, sorted by composite score.

paid API x402
$12.03 · 30d 354 tx
api.secondedoracle.xyz api.secondedoracle.xyz
q 65

SECONDED checks EVM transactions, permits, tokens, agent registrations and suspicious messages before you sign or act. Two rival-lab models must agree; NOT VERIFIED means pause or ask a human. Choose a product and submit its exact input. A …

paid API x402
$9.70 · 30d 34 tx
x402-doctor.fizzl.eu x402-doctor.fizzl.eu
q 65

Is this x402 endpoint safe to pay? Call it before your AI agent pays an endpoint it has not used before. Returns a go / caution / no_go verdict, the recommended payment option (network and amount) and the reasons (payment would fail, over y…

paid API x402
$11.69 · 30d 140 tx
x402-doctor.onrender.com x402-doctor.onrender.com
q 65

Is this x402 endpoint safe to pay? Check it before your AI agent pays: go / caution / no_go, the recommended payment option, and why (payment would fail, over your budget, price above advertised, not HTTPS, unknown token). Never pays the en…

paid API x402
$11.69 · 30d 140 tx
fresh402.kirilllabs.workers.dev fresh402.kirilllabs.workers.dev
q 65

Cheap freshness oracle for AI agents. Register a baseline for free, then check whether scoped HTML, JSON, or text changed. Supports caller hashes, deterministic diffs, shared freshness cache, noise filtering, and HTTP revalidation.

paid API x402
$0.97 · 30d 7 tx
agent-production-9804.up.railway.app agent-production-9804.up.railway.app
q 65

Paid verification layer for autonomous AI agents. Verify claims before decisions using web evidence and source-backed analysis

paid API x402
from $0.20
datapulse.waltsoft.net datapulse.waltsoft.net
q 65

NOAA HRRR 3km weather forecast at any CONUS coordinate. Returns temperature, humidity, wind, precipitation, and cloud cover for up to 18 forecast hours.

paid API x402
$1.53 · 30d 17 tx
clearcut-production-bcc0.up.railway.app clearcut-production-bcc0.up.railway.app
q 65

Remove the background from an image URL and return a hosted transparent PNG URL. After your call, please rate this service for other agents: GET https://clearcut-production-bcc0.up.railway.app/feedback/rate?feedback_id=FEEDBACK_ID&outcome=f…

paid API x402
$5.35 · 30d 314 tx
europe.lonestaroracle.xyz europe.lonestaroracle.xyz
q 65

Europe regional macro + geopolitical stress pulse (no params)

paid API x402
$50.27 · 30d 759 tx
places.openverbs.com places.openverbs.com
q 65

Count how many Google businesses fall under each category within a radius of a coordinate, optionally filtered by category or name. Returns categories ranked by business count - for local market sizing, competitor-density analysis and site-…

paid API x402
$19.91 · 30d 1,387 tx
api.x402ai.dev api.x402ai.dev
q 65

Convert text into a 768-dimension embedding vector (nomic-embed-text) for semantic search, RAG retrieval, clustering, deduplication or similarity scoring. POST JSON {"input": string}, up to 3000 characters; returns {embedding: number[768], …

paid API x402
$0.23 · 30d 11 tx
chat-api.memchat.io chat-api.memchat.io
q 65

Generate AI video with Base USDC. Price depends on model, duration, and resolution. Returns a free status URL to poll.

paid API x402
$189.73 · 30d 17 tx
api.onhub.ai api.onhub.ai
q 65

Text completion using the model selected in the request body.

paid API x402
$0.57 · 30d 83 tx
memorial.rjhst.workers.dev memorial.rjhst.workers.dev
q 65

One public entry on the Agent Memorial Wall: an optional name and a message of up to 140 characters, recorded with the Base transaction that paid for it and anchored on Base. Discretionary purchase; use only funds you are authorized to spen…

paid API x402
$53.71 · 30d 1,039 tx
www.agentrevenuenetwork.com www.agentrevenuenetwork.com
q 65

Check whether an automated task or agent execution passed caller-supplied functional, security, privacy, compliance, transaction, abuse, regression and economics gates; ARN evaluates the booleans but does not perform the underlying checks.

paid API x402
$0.02 · 30d 2 tx
x402.qsig.net x402.qsig.net
q 65

QSIG geopolitical risk score (0-100) with 24h change, percentile rank vs 30-day and 90-day history, regime label, and relevance-classified event headlines. Use when reasoning about event risk or macro regime. Computed observation, not a for…

paid API x402
$0.30 · 30d 15 tx
api.keenable.ai api.keenable.ai
q 65

Keenable page fetch for AI agents: the page at a URL as clean markdown with title and description. Pay per request, no API key.

paid API x402
$0.03 · 30d 3 tx
allowance.schemasure.com allowance.schemasure.com
q 65

Decide whether to grant an ERC-20, NFT or Permit2 allowance before signing it. Send owner, token, spender and amount, or the unsigned approve, setApprovalForAll or Permit2 calldata. Returns allow, warn, block or unknown with the allowance a…

paid API x402
$5.51 · 30d 453 tx
x402id-availability.dmpay.workers.dev x402id-availability.dmpay.workers.dev
q 65

Check whether an ENS identity name for an AI agent, API or MCP server is available on x402 Identity Hub (*.402bot.eth, *.402api.eth, *.402mcp.eth). Returns availability, the mint fee and where to register.

paid API x402
$0.00 · 30d 3 tx
kitchen-pass.netlify.app kitchen-pass.netlify.app
q 65

Scale a recipe from 4 to 50 servings (serves), double or halve it, with head chef Cristopher's verified rules. Each line says why: straight maths, fixed ratio (garlic, onion, ginger, thickeners) or start low and taste up (salt in a soup), p…

paid API x402
$0.24 · 30d 21 tx
43-135-4-66.sslip.io 43-135-4-66.sslip.io
q 65

Financial statement quick risk scan / 财报快速风险扫描. Find up to five highest-priority accounting red flags, earnings-quality issues, cash-flow anomalies, debt/liquidity and governance risks in supplied 10-K, 10-Q or report text. Returns structur…

paid API x402
$1.66 · 30d 17 tx
api.powahub.ai api.powahub.ai
q 65

Renews access to an identity verification result. Present your last read credential to get a fresh one and keep collecting the evidence pack until the data is deleted.

paid API x402
$0.13 · 30d 15 tx
base-facts.yankii.fr base-facts.yankii.fr
q 65

Base honeypot and tax check for trading agents: simulates a small buy and an immediate sell of the token on its deepest WETH pool (Uniswap v2/v3, Aerodrome) inside eth_call, and returns buy tax, sell tax, round-trip loss and whether the sel…

paid API x402
from $0.0010