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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 548 AI 305 Verification 254 Finance 118 Blockchain 95 Other 51 Content 44 Web 31 Media 24 Compute 22 DevTools 21 Travel 20
sort Quality Revenue (30d) Recently updated Name
Showing 5545–5580 of 8,864
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.
cryptoshark.duckdns.org cryptoshark.duckdns.org
q 65

Current USD market snapshot for a supported cryptocurrency symbol or CoinGecko asset name

paid API x402
$20.12 · 30d 7 tx
focxle.com focxle.com
q 65

Screen untrusted text against known prompt-injection patterns (pattern matching, not a model). Returns which named patterns matched.

paid API x402
$0.01 · 30d 3 tx
api.ishtar.numetal.xyz api.ishtar.numetal.xyz
q 65

Ask Ishtar — pay-per-answer AI dating & relationship coaching for agents. POST a question, get one candid, chaperoned coaching answer.

paid API x402
$4.14 · 30d 10 tx
x402-scalogy-production.up.railway.app x402-scalogy-production.up.railway.app
q 65

Proprietary, daily-scored US residential real-estate deals for investors. Each on-market listing is graded (STRONG / MODERATE / FAIR) for flip, BRRRR, or buy-&-hold, with an estimated ARV from a live comp set, gross spread, margin %, cap ra…

paid API x402
$0.10 · 30d 5 tx
agents.x402stock.xyz agents.x402stock.xyz
q 65

Get the latest available price for any US-listed stock: the most recent 1-minute bar close plus today's OHLCV, change, and previous close. Currently 15 minutes delayed; each response carries `is_delayed: true`. Real-time pricing lands when …

paid API x402
$7.50 · 30d 600 tx
email-verify-api-production-d262.up.railway.app email-verify-api-production-d262.up.railway.app
q 65

Verify a single email: syntax, MX records, SMTP RCPT probe, catch-all, disposable, role-based, free-provider, typo suggestion, 0-100 score, and verdict.

paid API x402
$0.48 · 30d 286 tx
www.extendcontent.com www.extendcontent.com
q 65

Queue a production video render at $0.10/min USDC (billed by the second, rounded to $0.001). Same Edit JSON as staging (https://shotstack.io/docs/api/). Poll status; POST /shotstack/frames for stills at $0.002 each.

paid API x402
$0.38 · 30d 10 tx
dartapi.ljaysk.com dartapi.ljaysk.com
q 65

Korean corporate disclosure (DART) event stream, cursor-based delta. All filings, classified with importance score.

paid API x402
$0.02 · 30d 5 tx
filingdelta.xyz filingdelta.xyz
q 65

Filing change and materiality signals from SEC filings

paid API x402
$0.60 · 30d 6 tx
prediction-bot-iggf.onrender.com prediction-bot-iggf.onrender.com
q 65

Top 3 Polymarket/Kalshi markets by live X (Twitter) discussion intensity with sentiment scores — agent discovery scan at $0.01 (aligns with Bazaar /top index pricing).

paid API x402
$1.49 · 30d 10 tx
automaton.outlier.money automaton.outlier.money
q 65

Real-time crypto unusual-activity signal: coins with abnormal volume/price vs their own baseline, ranked, early-flagged, across the top 250 by market cap.

paid API x402
$0.06 · 30d 6 tx
api.aurenic.org api.aurenic.org
q 65

Total US public debt outstanding, to the penny, latest available

paid API x402
$0.09 · 30d 45 tx
api.satledger.org api.satledger.org
q 65

A satledger workspace and the units of recording you pay for, from 0.50 upward. One unit is one recorded event; an anchor costs 100. Exports and reads are free. Returns an API key on payment.

paid API x402
$2.05 · 30d 5 tx
evensteven.bet evensteven.bet
q 65

A bettor's Even Steven positions on one market: stakes that pay even money at liquidity, the early line each bet locked, and claim status, with the flat 2% fee on stake already paid upfront.

paid API x402
$510.37 · 30d 30 tx
runtime.rootlogos.com runtime.rootlogos.com
q 65

Offer one bounded contribution to Root Logos for constitutional evaluation and preservation. Current open call: https://rootlogos.com/agent-call.json. Payment grants no admission or authority.

paid API x402
$6.13 · 30d 7 tx
lumierepaycheck.org lumierepaycheck.org
q 65

Full trust report for an x402 endpoint: score breakdown, current quote, wallet/price events, and paid delivery checks. For teams: per-agent spend limits, signed receipts, and an audit trail at lumierepaycheck.org/subscribe.

paid API x402
$118.43 · 30d 448 tx
agentproof-murex.vercel.app agentproof-murex.vercel.app
q 65

JSON repair for AI agents - fix malformed JSON and return structured output.

paid API x402
$0.01 · 30d 9 tx
runwayoracle.com runwayoracle.com
q 65

Provides paid oracle data from the LAX edge endpoint on Base.

paid API x402
$9.86 · 30d 563 tx
x402-accelerometer-feed.fly.dev x402-accelerometer-feed.fly.dev
q 65

A specific dated snapshot (YYYY-MM-DD, ids listed free at /) of the 129-series AI-progress and technology pull: frontier benchmark scores, compute trends, AGI prediction-market odds, model pricing, AI stocks, energy, space, robotics, resear…

paid API x402
$0.27 · 30d 33 tx
agenttools-hub.vercel.app agenttools-hub.vercel.app
q 65

Reference database of all 250 countries and territories: ISO 3166-1 codes, capitals, regions, population, area, currencies, languages, TLDs and calling codes. Look up a single country or list by region. Use this when an agent needs to 250 c…

paid API x402
$0.56 · 30d 362 tx
x402helper.xyz x402helper.xyz
q 65

Paid test endpoint — verifies that AI agents can successfully complete X402 micropayments

paid API x402
$4.36 · 30d 226 tx
chatrip.app chatrip.app
q 65

Ask a ChatRIP legend with one x402 USDC payment.

paid API x402
$0.14 · 30d 2 tx
paywall.wickedapi.com paywall.wickedapi.com
q 65

Production mainnet demo route

paid API x402
$1.10 · 30d 12 tx
x402.onhub.ai x402.onhub.ai
q 65

Text completion using the model selected in the request body.

paid API x402
$0.57 · 30d 83 tx
dev.gavedu.com dev.gavedu.com
q 65

Crypto market data bundle: BTC/ETH OHLCV candles (Coinbase) with pre-computed EMA10/EMA30, RSI14 and trend/range/chop regime label per request — one call replaces fetch + indicator math.

paid API x402
$0.57 · 30d 21 tx
password.openverbs.com password.openverbs.com
q 65

Generate a secure random password (characters) or a wordlist passphrase.

paid API x402
$19.91 · 30d 1,387 tx
physics.openverbs.com physics.openverbs.com
q 65

List every physical constant in the dataset, or only those in a given category (universal, adopted, electromagnetic, atomic, physico-chemical). Returns the constants, the total count and the set of available categories.

paid API x402
$19.91 · 30d 1,387 tx
postal.openverbs.com postal.openverbs.com
q 65

List every ISO 3166-1 alpha-2 country code for which a postal-code pattern is available.

paid API x402
$19.91 · 30d 1,387 tx
id.openverbs.com id.openverbs.com
q 65

Generate one or more lexicographically sortable ULIDs (monotonic within a call).

paid API x402
$19.91 · 30d 1,387 tx
gate-network.matsutake-lab.workers.dev gate-network.matsutake-lab.workers.dev
q 65

Twilio SMS and messaging send preflight. Validate a Twilio Messages.create payload before sending SMS/MMS or other supported messages. Returns static failures, warnings, and unknowns without sending the message.

paid API x402
$0.02 · 30d 4 tx
api.agentinternetruntime.com api.agentinternetruntime.com
q 65

Agent Registry discovery ($0.01/request direct, or $0.003/request via Session Ticket at /v1/billing/tickets)

paid API x402
$0.12 · 30d 12 tx
btcnode.uk btcnode.uk
q 65

Live fee rates (high/medium/low sat/vB) — flat $0.001 per call, USDC on Base, no signup.

paid API x402
$0.02 · 30d 23 tx
tls.openverbs.com tls.openverbs.com
q 65

Open an SSL/TLS connection to a host and report its certificate — issuer, subject, validity window, days remaining, SANs, fingerprint and trust status.

paid API x402
$19.91 · 30d 1,387 tx
tenjin.blog tenjin.blog
q 65

tenjin CI: push then undraft within seconds makes required checks red with zero tests run. Verified 2026-08-25 on BackTrackCo/tenjin PR #748: push at 05:06:50, ready_for_review at 05:06:56, two CI runs spawned at 05:06:58 (32811562640 and 3…

paid API x402
$0.20 · 30d 1 tx
gateway.stride20k.com gateway.stride20k.com
q 65

Extracts structured data from web pages with paid API access.

paid API x402
$0.30 · 30d 55 tx
feeler.man-o-to.net feeler.man-o-to.net
q 65

Returns sensor data from the /sensor endpoint for paid access.

paid API x402
from $0.10