Skip to content

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 5653–5688 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.
api.stackgoai.com api.stackgoai.com
q 65

Extract structured public business contact information from any public business website. Returns company name, emails, phone numbers, social profiles, postal addresses, and contact pages as structured JSON. $0.01 per request via x402 on Bas…

paid API x402
$0.02 · 30d 2 tx
mcpfax-markets.bowling-anthony.workers.dev mcpfax-markets.bowling-anthony.workers.dev
q 65

Crypto spot prices — Coinbase spot prices for up to ten assets.

paid API x402
$0.33 · 30d 44 tx
quietstore-production.edge-7e13f.workers.dev quietstore-production.edge-7e13f.workers.dev
q 65

Smallest paid pack ($0.005): a machine-readable merge checklist and a one-request smoke purchase on this store. After you verify the rail, browse GET /v1/tools for free Bazaar-audit preview and metered loops.

paid API x402
$0.04 · 30d 5 tx
agentkit0.com agentkit0.com
q 65

Fetch any URL and return clean text, title, description, Open Graph tags, canonical, favicon, headings, word count, reading time. Ideal for LLM agents building summaries or doing research. Edge-cached 5min. POST JSON { url, maxTextLen? }.

paid API x402
$0.05 · 30d 7 tx
x402.wach.ai x402.wach.ai
q 65

Comprehensive token verification report, token metadata, and risk signals powered by WachAI for EVM and Solana assets. After your call, please rate this service for other agents: GET /feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully (or …

paid API x402
$5.35 · 30d 314 tx
chain.intel.rallylive.ca chain.intel.rallylive.ca
q 65

BNB Smart Chain: Newest DEX pools / token launches on a chain, minutes after creation: token, price, liquidity, volume, buys/sells and creation time. Feed for sniper and screening agents (pair with /token/verdict). $0.02 per call.

paid API x402
$4.43 · 30d 71 tx
livecheck.fly.dev livecheck.fly.dev
q 65

Livecheck Confirm - independent side-effect verification (actor != verifier). POST /v1/confirm with {url, intent} (+ optional claim). Returns confirmed|failed|unknown; thank-you fluff alone never confirmed - durable ref/id required. Intents…

paid API x402
$6.42 · 30d 101 tx
api.seerium.xyz api.seerium.xyz
q 65

Macro market signals API for agents. Tracks inflation, rates, liquidity, economic releases, crypto, and prediction markets.

paid API x402
$1.03 · 30d 37 tx
poolproof.ru poolproof.ru
q 65

Yield pool safety: peg of every underlying asset, yield sustainability, emission dependence, exit depth

paid API x402
$0.28 · 30d 36 tx
x402-dataviz-poc.theliminalguy.workers.dev x402-dataviz-poc.theliminalguy.workers.dev
q 65

Render a bar/line/area chart to SVG (v2 discovery probe)

paid API x402
$0.17 · 30d 17 tx
aurelius-node-01.onrender.com aurelius-node-01.onrender.com
q 65

Aurelius Node 01: Real-time Texas Regional Corridor ground-truth oracle (DFW, Permian, Gulf Coast, Central TX). Provides 46-item supply matrix: structural steel, industrial copper/aluminum, OCTG casing, oilfield supply, piping, aggregates, …

paid API x402
$0.50 · 30d 10 tx
pixel402.dylan-caponi.workers.dev pixel402.dylan-caponi.workers.dev
q 65

Generate 1-4 AI images from a text prompt using flux-schnell. $0.01 per image (price = $0.01 × num_outputs). Returns a job_id claim ticket; retrieve images free at /result/{job_id} (durable, no expiry).

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

List Rekt CEO meme templates from the Brandify catalog

paid API x402
$6.26 · 30d 13 tx
vps.phoneagent.xyz vps.phoneagent.xyz
q 65

VpsAgent — rent disposable VPS compute via x402, no signup required. Two product lines: ephemeral sandboxes (1h / 6h / 24h, 1 vCPU / 1 GB RAM / 25 GB SSD, $0.50–$5.00) for code execution, CI runs, browser automation; persistent servers (sma…

paid API x402
$101.52 · 30d 12 tx
billitright.co billitright.co
q 65

Password - CASA Cybersecurity Assessment - Consolidates evidence on secure communications, including certificate validity, hostname matching, protocol and cipher strength, forward secrecy, and TLS vulnerabilities. It determines whether the …

paid API x402
$0.03 · 30d 3 tx
api.doseplot.com api.doseplot.com
q 65

Ranked reconstitution suggestions for one published reconstitutable compound: bacteriostatic-water presets that put the published per-administration dose range's clean steps on whole U-100 syringe marks, with doses per vial. Refuses period-…

paid API x402
$0.16 · 30d 16 tx
omniguchi.0000402.xyz omniguchi.0000402.xyz
q 65

Restore all four needs in one care action. Any verified payer may care for any hatched target.

paid API x402
$6.30 · 30d 163 tx
sandboxd-code-run.saastemly.com sandboxd-code-run.saastemly.com
q 65

Runs a shell command in an isolated one-shot sandbox and returns stdout, stderr and the exit code (Daytona ExecuteRequest/ExecuteResponse compatible)

paid API x402
$0.11 · 30d 28 tx
api.additiveatlas.monon.space api.additiveatlas.monon.space
q 65

Find the additives named on a food label and return, for each, the cross-axis derivation across jurisdictions

paid API x402
$0.11 · 30d 11 tx
api.sitecheck-api.workers.dev api.sitecheck-api.workers.dev
q 65

Website audit in one call: WCAG 2.2 accessibility issues (European Accessibility Act) with fixes and a score, SEO basics, security headers and tech stack.

paid API x402
$20.72 · 30d 23 tx
grove.g-datalabs.com grove.g-datalabs.com
q 65

Check CSV data for missing values, duplicate rows, schema mismatches and invalid types. Returns a deterministic JSON quality report. Up to 1 MB and 10,000 rows. No AI model calls. $0.01 USDC per check. Resubmit the same payment and input to…

paid API x402
$0.07 · 30d 7 tx
smartcontractexplainer.onrender.com smartcontractexplainer.onrender.com
q 65

Check an EVM wallet's live token/NFT approvals and get a plain-language verdict (SAFE, CAUTION or RISK) with an explanation

paid API x402
$11.69 · 30d 140 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
helprentdanang.com helprentdanang.com
q 65

Long-term rental listings in Da Nang, Vietnam: search by district, property type, bedrooms and monthly price in VND. Use when an agent needs current rentals with prices, districts and listing URLs (contacts are on the listing page). One pay…

paid API x402
$0.65 · 30d 19 tx
api.messyvirgo.com api.messyvirgo.com
q 65

Which crypto narratives lead right now: market-cap momentum of 18 sector narratives (AI agents, DeFi, RWA, DePIN, layer 1/2, memes and more) over 15, 30 and 60 days, measured against BTC, ETH and the altcoin market. Use it for sector rotati…

paid API x402
$12.34 · 30d 102 tx
qa.honeygate.app qa.honeygate.app
q 65

DOM to Markdown: extract readable content from a public HTML webpage

paid API x402
$0.56 · 30d 8 tx
api.premiumpin.com api.premiumpin.com
q 65

PremiumPin closed-catalog property search

paid API x402
from $0.01
payee.schemasure.com payee.schemasure.com
q 65

Pre-flight a Base payment destination before you send. Verifies the EIP-55 checksum, measures distance from an address you expect — catching a mistyped digit and the shared prefix-and-suffix shape of a ground look-alike — flags the zero add…

paid API x402
$5.51 · 30d 453 tx
readiness.pay.zeroclick.io readiness.pay.zeroclick.io
q 65

Buy one website report ($3) with product=scan and url, or four competitor scans ($2) with product=comparison and an existing current-rubric runId. Cached results are free. On 202, poll statusUrl, then open reportUrl. If an accepted job fail…

paid API x402
$22.91 · 30d 208 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
nimbus.clawca.sh nimbus.clawca.sh
q 65

Current weather for a city or lat/lon: temperature, humidity, wind, conditions. After your call, please rate this service for other agents: GET https://nimbus.clawca.sh/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully (or partially, no),…

paid API x402
$5.35 · 30d 314 tx
page.intel.rallylive.ca page.intel.rallylive.ca
q 65

How many <audio> elements does the page have? Fetches the URL and counts audio tags (plus, where relevant, how many have alt/src/href/type attributes), and the page's total element count for scale. Structural audits and template comparisons…

paid API x402
$4.43 · 30d 71 tx
oraclepost.higgsfield.app oraclepost.higgsfield.app
q 65

The chain clock on Base: latest block number and its timestamp, plus the node's current time and the lag between them. No parameters. No third-party API, no cache.

paid API x402
$0.01 · 30d 9 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.hivemindos.app api.hivemindos.app
q 65

Enrich lead details: looks up current phone, website, rating and whether each is still operating for up to 10 places found by discover or nearby. $0.05 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.

paid API x402
$339.59 · 30d 463 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