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 1765–1800 of 3,228
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.
gpt.558686.xyz gpt.558686.xyz
q 65

x402-protected paid API on gpt.558686.xyz (discovered via Coinbase facilitator).

paid API x402
$0.87 · 30d 54 tx
builtwith.x402.paywithlocus.com builtwith.x402.paywithlocus.com
q 65

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
pulse-api-production-7aae.up.railway.app pulse-api-production-7aae.up.railway.app
q 65

A Premium Global analysis with chart, Fibonacci and pivot levels, global Elliott wave paths and DeFi opportunities, followed by a prefilled wallet-signed Spot Market or Limit order on a supported execution mainnet.

paid API x402
$6.70 · 30d 7 tx
signal-foundry.replit.app signal-foundry.replit.app
q 65

Use for source-backed Item 1A risk-disclosure changes for one issuer. Pass exactly one ticker or CIK; optionally filter by materiality (HIGH, MEDIUM, LOW) and classification. A successful nonempty request returns all matching RELEASE signal…

paid API x402
$0.15 · 30d 3 tx
api.govparse.io api.govparse.io
q 65

How much visa-sponsorship data is on file? Headline aggregates over DOL OFLC disclosure data: distinct sponsoring employers, LCA and PERM case totals with certified counts, and the fiscal years covered.

paid API x402
$3.44 · 30d 76 tx
x402.aurelianflo.com x402.aurelianflo.com
q 65

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

paid API x402
$0.80 · 30d 80 tx
shoppi-backend.onrender.com shoppi-backend.onrender.com
q 65

Lists the countries available for voucher catalog availability and filtering.

paid API x402
$32.31 · 30d 132 tx
tempfile.0000402.xyz tempfile.0000402.xyz
q 65

Upload files to temporary storage for short-term sharing.

paid API x402
$6.30 · 30d 163 tx
blockint.ai blockint.ai
q 65

Checks whether a domain is available, registered, or otherwise flagged.

paid API x402
$0.01 · 30d 1 tx
x402-secure-api.t54.ai x402-secure-api.t54.ai
q 65

Browse searchable directory of x402 servers with pagination, filtering, and sorting. Discover services, check validation status, and build server catalogs for integration. Price: $0.01 USDC per page

paid API x402
$0.30 · 30d 30 tx
grocery-basket.bowling-anthony.workers.dev grocery-basket.bowling-anthony.workers.dev
q 65

Cheapest Grocery Basket cheapest

paid API x402
$0.33 · 30d 44 tx
donate.0000402.xyz donate.0000402.xyz
q 65

Processes a fixed USDC donation payment on Base.

paid API x402
$6.30 · 30d 163 tx
url-extractor.x402.paysponge.com url-extractor.x402.paysponge.com
q 65

Service: Website URL Extractor (https://url-extractor.x402.paysponge.com/url/:domain)

paid API x402
$1.69 · 30d 164 tx
skills.onesource.io skills.onesource.io
q 65

Fetches metadata for NFTs on-chain.

paid API x402
$109.19 · 30d 15,706 tx
payflowagent.net payflowagent.net
q 65

Screens and validates payments using USDC on Base.

paid API x402
$1.07 · 30d 1 tx
d2ngmd5yvdfkqu.cloudfront.net d2ngmd5yvdfkqu.cloudfront.net
q 65

Returns total volume predictions for the requested market or dataset.

paid API x402
$0.04 · 30d 43 tx
feed-reader.bowling-anthony.workers.dev feed-reader.bowling-anthony.workers.dev
q 65

Any RSS, RSS/RDF or Atom feed parsed into one shape: title, link, ISO date, author, summary and categories. Pass since to poll for changes.

paid API x402
$0.33 · 30d 44 tx
mistral.x402.stage.paywithlocus.com mistral.x402.stage.paywithlocus.com
q 65

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
fal.x402.paywithlocus.com fal.x402.paywithlocus.com
q 65

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
deepseek.x402.stage.paywithlocus.com deepseek.x402.stage.paywithlocus.com
q 65

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
anthropic.x402.stage.paywithlocus.com anthropic.x402.stage.paywithlocus.com
q 65

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
perplexity.x402.paywithlocus.com perplexity.x402.paywithlocus.com
q 65

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
groq.x402.stage.paywithlocus.com groq.x402.stage.paywithlocus.com
q 65

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
nova-retail-controlled-proof.onrender.com nova-retail-controlled-proof.onrender.com
q 65

Nova retail context_delta context resource

paid API x402
$0.06 · 30d 4 tx
external-fuse.onrender.com external-fuse.onrender.com
q 65

External Fuse

paid API x402
$0.19 · 30d 30 tx
api.recoupable.dev api.recoupable.dev
q 65

Generate an image from a text prompt using AI

paid API x402
$0.15 · 30d 1 tx
api.getanyapi.com api.getanyapi.com
q 65

AnyAPI email.find (Email Finder)

paid API data x402
$0.12 · 30d 26 tx
meta-api-router.johntaylor1online.workers.dev meta-api-router.johntaylor1online.workers.dev
q 65

Meta-API Router — intelligent API routing

paid API x402
$34.14 · 30d 267 tx
browser-use.x402.paywithlocus.com browser-use.x402.paywithlocus.com
q 65

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
alphavantage.x402.paywithlocus.com alphavantage.x402.paywithlocus.com
q 65

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
x402scan-git-router-117-merit-systems.vercel.app x402scan-git-router-117-merit-systems.vercel.app
q 65

Paginated list of merchants (top recipients by volume)

paid API x402
$12.52 · 30d 1,217 tx
mailcheck.hugen.tokyo mailcheck.hugen.tokyo
q 65

MX record lookup for any domain — returns whether mail servers exist and their hostnames sorted by priority. Verify email deliverability before sending. Supports all TLDs including ccTLDs and new gTLDs. No DNS library setup needed. Accepts …

paid API x402
$6.85 · 30d 889 tx
x402-stall-l3bb.onrender.com x402-stall-l3bb.onrender.com
q 65

Hello from Taiwan — a signed timestamp from my first x402 stall

paid API x402
$0.04 · 30d 4 tx
percallapi.com percallapi.com
q 65

Lookup WHOIS records and domain availability in JSON format. Provide the domain name via ?domain=example.com to query registrar, status, and expiration dates.

paid API x402
$0.08 · 30d 9 tx
store.cryptotradecalc.com store.cryptotradecalc.com
q 65

timezone-oracle: IANA time zone offset (minutes from UTC) and DST status for a given timezone name.

paid API x402
$0.04 · 30d 15 tx
files.camelai.io files.camelai.io
q 65

Upload a file and get a temporary signed URL. Send raw file body with Content-Type header. Returns a URL valid for 1 hour.

paid API x402
$0.01 · 30d 6 tx