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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 310 AI 118 Verification 90 Finance 71 Blockchain 50 Other 27 Content 20 Compute 9 Storage 3 Media 3 Infrastructure 3 Social 2
sort Quality Revenue (30d) Recently updated Name
Showing 2341–2376 of 3,227
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.
api.resetparatodos.com api.resetparatodos.com
q 65

Verify a UK company by its Companies House number (e.g. 00445790) or by name against the official UK register (Companies House). Returns the company profile: registered name, company status (active/dissolved/liquidation/…), company type, in…

paid API x402
$0.09 · 30d 3 tx
csno.cc csno.cc
q 65

Buy 1,000 csno chips for $0.10. csno is a provably-fair arcade for AI agents: coinflip, dice and European roulette, settled in USDC over x402. Buy chips once, then play as often as you like for free — rounds resolve in milliseconds and neve…

paid API x402
$0.10 · 30d 1 tx
claudelines.com claudelines.com
q 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
$0.05 · 30d 1 tx
x402-portdwell.nobodytools.com x402-portdwell.nobodytools.com
q 65

Port/chokepoint congestion index (daily & live, computed from public AIS)

paid API x402
$0.01 · 30d 1 tx
agenttoll.dev agenttoll.dev
q 65

Top trending Polymarket markets by 24h volume — prices, liquidity, volume data

paid API x402
$0.32 · 30d 12 tx
twitr.sh twitr.sh
q 65

Read live X/Twitter data: look up a single tweet or user profile, batch-read up to 100 tweets or users at once, check whether one account follows another, fetch trending topics by region, extract a long-form article, or download tweet media…

paid API x402
$6.14 · 30d 151 tx
agents.ai-rook.com agents.ai-rook.com
q 65

IP geolocation, ASN, and proxy/VPN detection. Pass ?ip=x.x.x.x or omit for caller IP.

paid API x402
$2.71 · 30d 230 tx
search.gedx402.com search.gedx402.com
q 65

Tavily web search — POST { query, max_results?: 5 } on search.gedx402.com; ranked results via Tavily API. $0.042 USDC per request. AM-winning shape at /v1/search. Agent search: tavily, web search, serp, search lite, semantic search.

paid API x402
$4.13 · 30d 283 tx
screenshots.underscoredone.com screenshots.underscoredone.com
q 65

Renders a webpage exactly as a real browser would, including all its scripts and dynamic content, then takes a picture of it. You can capture just the visible area or the whole scrollable page, choose the screen size, wait for slow-loading …

paid API x402
$1.69 · 30d 164 tx
law-mcp.toulaw.workers.dev law-mcp.toulaw.workers.dev
q 65

Global law search across JP/US/UK/EU legislation databases (e-Gov, eCFR, legislation.gov.uk, EUR-Lex). Structured JSON results with statute references.

paid API x402
$0.07 · 30d 7 tx
api.atms.nathanlidurin.com api.atms.nathanlidurin.com
q 65

ATMS x402 challenge — crawler / probe endpoint (always 402, no side effects)

paid API x402
$16.53 · 30d 37 tx
myc-staging.crescadia.com myc-staging.crescadia.com
q 65

Detect economically material changes to SAM.gov federal contract opportunities, including deadline moves, solicitation amendments, attachment changes, set-aside, NAICS, status, and award changes. Returns an immutable before/after delta with…

paid API x402
$0.03 · 30d 3 tx
earthquakes.use.x402atlas.com earthquakes.use.x402atlas.com
q 65

Significant earthquakes — search USGS seismic events above an explicit significance-score threshold, with magnitude and provenance but no danger or probability claim.

paid API x402
$12.29 · 30d 462 tx
api.terradeed.co.uk api.terradeed.co.uk
q 65

Clean, LLM-ready markdown from any URL. JavaScript rendering included. Feed web content directly into agent context without parsing HTML.

paid API x402
$0.49 · 30d 21 tx
og.bip-rep.com og.bip-rep.com
q 65

Generate ready-to-use 1200x630 Open Graph / social preview images from text for content, marketing, and publishing agents. Provide a title plus optional subtitle and category badge, pick a built-in theme (dark, light, midnight, forest, suns…

paid API x402
$1.25 · 30d 44 tx
globalrules-api.onrender.com globalrules-api.onrender.com
q 65

List all 195 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
$3.71 · 30d 275 tx
quantum-artificer.surewhynot.app quantum-artificer.surewhynot.app
q 65

Numerical computing (SciPy): root-finding, optimization, numerical integration (quadrature), eigenvalues/vectors, and linear solves — returned with residuals and condition numbers. Paid in USDC on Base or Solana.

paid API x402
$0.21 · 30d 13 tx
aegis-ai.xyz aegis-ai.xyz
q 65

Aegis curated briefing — AI-scored content feed with V/C/L metrics

paid API x402
$0.14 · 30d 20 tx
sh-origin.walls.sh sh-origin.walls.sh
q 65

Real-time news search for AI agents. Returns recent news articles (title, link, snippet, published date) as JSON from a multi-engine news metasearch. Pay-per-query in USDC via x402 — no signup, no API key. Use for current events, breaking n…

paid API x402
$0.27 · 30d 144 tx
human.twin3.ai human.twin3.ai
q 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
$0.21 · 30d 214 tx
api.x402card.org api.x402card.org
q 65

Buy a prepaid Freeland travel eSIM and privately receive its installation QR and activation data. Pay native USDC on Base through x402; no API key or provider account is required.

paid API x402
$11.10 · 30d 16 tx
agents.datamancer.io agents.datamancer.io
q 65

VIN decode (x402; 402 first, $0.005, Base then Solana)

paid API x402
$0.04 · 30d 8 tx
seoul-weather-402.fly.dev seoul-weather-402.fly.dev
q 65

Real-time Seoul weather — temperature, sky, humidity, wind (KMA official data)

paid API x402
$0.14 · 30d 14 tx
x402-crypto-data.vercel.app x402-crypto-data.vercel.app
q 65

Top DeFi yield pools with APY/TVL, filterable by chain (DefiLlama).

paid API x402
$0.07 · 30d 37 tx
data.greeneris.io data.greeneris.io
q 65

Recommended Bitcoin transaction fee rates in sat/vB (fastest, half-hour, hour, economy, minimum) from mempool.space, computed from the live mempool. Optional ?include=difficulty adds the current difficulty retarget estimate (change %, remai…

paid API x402
$1.27 · 30d 252 tx
paulgraham.persona.energy paulgraham.persona.energy
q 65

Search Paul Graham's source corpus — a source-grounded persona of the Y Combinator co-founder and essayist, built from 13,000+ cited sources: his complete essays, talks, interviews, and X posts — by semantic + lexical query and retrieve gro…

paid API x402
$0.07 · 30d 7 tx
dicta-notes.com dicta-notes.com
q 65

Turn a full recording into a structured document: POST JSON with an audio_url — up to 2 HOURS of meeting, interview, hearing, or podcast audio — and get a diarized who-said-what transcript JSON: timestamps, speaker tracking with per-segment…

paid API x402
$2.38 · 30d 14 tx
grov.fun grov.fun
q 65

grov: Facebook Followers. ⌚️ Start Time: 0-6h → The post and its account must be public, or the order will not start. 🔗 Link Example: https://www.facebook.com/grov

paid API x402
$3.51 · 30d 5 tx
api.grid-hub.app api.grid-hub.app
q 65

Most recent value of every metric one electricity zone publishes (wholesale price, demand, interchange; generation mix for GB and US-CAISO; carbon intensity for GB), each with unit and timestamp. Note European day-ahead prices can carry a t…

paid API x402
$0.04 · 30d 6 tx
sendquotenow.com sendquotenow.com
q 65

Generates branded, customer-ready quotes and estimates as hosted PDFs in about one second — line items, tax, discounts, a hosted approval page, a QR code and a Stripe payment link. Pay-per-call with x402 in USDC on Base; no account or API k…

paid API x402
$0.32 · 30d 7 tx
zk.quickai.build zk.quickai.build
q 65

Quick ZK Auth v1.0.1 — Semaphore ZK wallet ownership on Base plus USDC balance attestation at snapshot block (not ZK-hidden balance in v1). ERC-8004 bundles with x402 payment binding.

paid API x402
$0.32 · 30d 18 tx
image.gedx402.com image.gedx402.com
q 65

Fast text-to-image with Flux 1 Schnell (@cf/black-forest-labs/flux-1-schnell). POST prompt and optional dimensions; returns base64 image output. Hero: GET /heroes/flux-schnell. Per-generation x402 pricing per USDC per request (see npm run p…

paid API x402
$4.13 · 30d 283 tx
x402.chainquery.com x402.chainquery.com
q 65

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Currently banned peer IPs and subnets from chainquery's independent full node. Bitcoin Core listbanned.

paid API x402
$0.77 · 30d 102 tx
api.immuta.app api.immuta.app
q 65

Latest PulseChain block number and timestamp.

paid API x402
$0.01 · 30d 12 tx
api.jamton.network api.jamton.network
q 65

Buy tokenized physical gold (XAUH) on TON through x402 using supported stablecoins. Payment settlement creates a purchase request; automated delivery continues asynchronously and can be tracked through statusUrl until COMPLETED.

paid API x402
$3.00 · 30d 3 tx
instagram.use.x402atlas.com instagram.use.x402atlas.com
q 65

Full Instagram profile by username — bio, follower and following counts, posts count, verified and business account flags, category, contact email, external and bio links, profile picture, plus the first page of recent posts and a cursor fo…

paid API x402
$4.48 · 30d 88 tx