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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 2953–2988 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.
play.0000402.xyz play.0000402.xyz
q 65

Pay $1.00 USDC to play Rock Paper Scissors against the server. Win pays 2.0 USDC, tie pays 0.5 USDC, loss pays nothing. Network: Base Mainnet. Each request plays one complete turn-based round against a server-selected move and returns both …

paid API x402
$6.30 · 30d 163 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
willimake-it.dylan-caponi.workers.dev willimake-it.dylan-caponi.workers.dev
q 65

Ask the oracle: will I make it?

paid API x402
$0.06 · 30d 15 tx
x402-tollbooth.onrender.com x402-tollbooth.onrender.com
q 65

Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not perform SMTP/mailbox …

paid API x402
$0.10 · 30d 15 tx
grant-search.46-224-157-88.sslip.io grant-search.46-224-157-88.sslip.io
q 65

Search current U.S. Grants.gov opportunities by default, or set source=eu to search English EU Funding & Tenders topics with SEDIA status 31094502. Inputs are source, query, agency, statuses, limit, closing_within_days, and minimum_award_ce…

paid API x402
$1.05 · 30d 13 tx
citation-tracker.pixelcove.co citation-tracker.pixelcove.co
q 65

Sends one prompt to one search assistant (Perplexity, OpenAI or Gemini) and reports whether it cites your target domains: cited status, citation count, cited domains, model, and a structured error. For Claude, or several engines in one call…

paid API x402
$0.20 · 30d 2 tx
pay.retraced.site pay.retraced.site
q 65

X (Twitter) account metadata for any handle (based_in, source app, username-change count, recent-activity proxy). Utility endpoint.

paid API x402
$0.52 · 30d 14 tx
foretagskoll.lolalex64.workers.dev foretagskoll.lolalex64.workers.dev
q 65

Swedish company lookup by organisation number: official name, legal form, active/deregistered status, ongoing liquidation or bankruptcy, registration date, address, SNI industry codes and business description. Source: Bolagsverket and SCB.

paid API x402
from $0.01
api.oassis.dev api.oassis.dev
q 65

Web extraction: every output you ask for in `formats`, in one call.

paid API x402
from $0.0010
forwardlane.pay.zeroclick.io forwardlane.pay.zeroclick.io
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
nato.openverbs.com nato.openverbs.com
q 65

Spell text using the NATO/ICAO phonetic alphabet (A→Alfa, B→Bravo, …), including digits and spaces (→Space). Characters with no phonetic spelling are clean 400s.

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

Render text (URL, vCard, Wi-Fi config, …) as a QR code — SVG string or PNG data URL.

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

Full descriptive summary of a numeric sample: count, sum, min/max/range, mean, median, mode(s), variance, standard deviation and the quartiles (q1/q3/iqr). Set sample=true for the sample variance/stdev (÷ n-1) instead of the population form…

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

Round an amount to a currency's minor units (or an explicit minorUnits) with a chosen rounding mode: half-even (banker's, default), half-up, half-down, ceil, floor or trunc. Give a currency to derive minor units automatically (USD→2, JPY→0)…

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

Spell an integer out in English words, e.g. 123 → "one hundred twenty-three". Negatives are prefixed with "minus".

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

Generate a random EUI-48 MAC address. By default it is locally-administered and unicast (safe for testing); set `local:false` for a universal-bit address or `multicast:true` for a group address.

paid API x402
$19.91 · 30d 1,387 tx
faultcode-diagnostic-mcp.bowling-anthony.workers.dev faultcode-diagnostic-mcp.bowling-anthony.workers.dev
q 65

What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement between sources stated.

paid API x402
$0.33 · 30d 44 tx
jsonrecon.com jsonrecon.com
q 65

Verify Product data against multiple representations on the requested page. Returns field-level corroboration, bounded evidence, contradictions, observation time, and a content hash. Outcomes: verified, conflicted, or insufficient_evidence.…

paid API x402
$0.10 · 30d 6 tx
www.oracleinsight.xyz www.oracleinsight.xyz
q 65

Pre-trade safety check: oracle-immune-system verdict for one trade, with verifiable EIP-712 attestation support. BLOCK verdicts are complete checks and are charged.

paid API x402
from $0.02
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
aient.ai aient.ai
q 65

Creates an AIent account signup via a paid x402 endpoint.

paid API x402
from $0.0050
runwayoracle.com runwayoracle.com
q 65

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

paid API x402
$12.32 · 30d 637 tx
agent.soliduscapital.io agent.soliduscapital.io
q 65

Checks Solidus Capital status or eligibility via a paid API call.

paid API x402
from $0.10
zx10r-x402-api.onrender.com zx10r-x402-api.onrender.com
q 65

Scrape web content via a paid X402 API endpoint.

paid API x402
$96.68 · 30d 2,607 tx
time.24klabs.ai time.24klabs.ai
q 65

Timezone intelligence — offsets, DST, transitions

paid API x402
$0.07 · 30d 55 tx
api.brokenkeyremapper.xyz api.brokenkeyremapper.xyz
q 65

Generates a remapper link for broken keys, paid in USDC on Base.

paid API x402
$0.07 · 30d 26 tx
api.veritylayer.dev api.veritylayer.dev
q 65

Fast verification endpoint for quick identity or data checks.

paid API x402
from $0.0020
x402.srch.best x402.srch.best
q 65

Structured alerts data for agents, paid per request with x402 v2

paid API x402
$0.27 · 30d 80 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
orchard-data.netlify.app orchard-data.netlify.app
q 65

Trending tickers right now: StockTwits trending symbols + r/wallstreetbets hot posts with ticker mention counts. JSON.

paid API x402
$0.02 · 30d 4 tx
agent-artifact-eta.vercel.app agent-artifact-eta.vercel.app
q 65

Publish agent-generated files, JSON reports, markdown, or text and return a stable public URL.

paid API x402
$0.61 · 30d 23 tx
web-production-220a3.up.railway.app web-production-220a3.up.railway.app
q 65

Use this when you need to understand what a Robinhood Chain transaction did. Price: $0.005 in USDC on Base or Solana, or $0.02 in USDG or $SWOGE on Robinhood Chain (tool price + settlement cost, minimum $0.02).

paid API x402
$2.94 · 30d 67 tx
agent-dispatch-production-4e75.up.railway.app agent-dispatch-production-4e75.up.railway.app
q 65

Send one SMS to a mobile number, paid per message in USDC with x402. Use it when an agent must notify a person by text. The 402 quotes the exact price for the destination and message length. No account and no API key: any wallet that pays s…

paid API x402
from $0.06
x402-retire-git-feat-paid-indexing-gate-and-openapi-carbonmark.vercel.app x402-retire-git-feat-paid-indexing-gate-and-openapi-carbonmark.vercel.app
q 65

Live snapshot of the most liquid carbon credits retirable on Base: the top 3 Klima Protocol carbon classes and the top 3 Carbonmark marketplace listings, with USDC-per-tonne prices and tonnes available. Additionally, the additional endpoint…

paid API x402
$3.43 · 30d 149 tx
api-production-8785.up.railway.app api-production-8785.up.railway.app
q 65

Convert a Twitter/X, LinkedIn, Medium, Substack, Beehiiv, or public Notion page URL into clean markdown.

paid API x402
$0.08 · 30d 8 tx