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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 1945–1980 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.
X402-Tools-Production-2755 x402-tools-production-2755.up.railway.app
q 70

Use to price a crypto portfolio or watchlist in one call. Market data for up to 50 symbols or 250 CoinGecko ids: price, 1h/24h/7d/30d change, 24h high/low, volume, market cap, rank, FDV, supply, and distance from all-time high/low; optional…

paid API x402
$0.14 · 30d 39 tx
Zeroclass zeroclass.pay.zeroclick.io
q 70

Pay-per-call: meter rules_read, $0.05 (service zeroclass). Unsigned/unpaid → 402 x402/MPP challenge; settle and retry. Returns transfer_partners + the Avios interchange bridge + active bonuses.

paid API x402
$0.65 · 30d 11 tx
Currency-Api-Production-4A8D currency-api-production-4a8d.up.railway.app
q 70

Current price, market cap, and 24h change for a single cryptocurrency by symbol or name (CoinGecko).

paid API x402
$0.48 · 30d 286 tx
Agent-Debarment-Check agent-debarment-check.iykykblog.workers.dev
q 70

Check whether a person or company appears on the SAM.gov federal exclusions (debarment) list. Query by name, UEI, or CAGE code. Returns exclusion details and an audit receipt.

paid API x402
from $0.01
Agent-Sec-Lookup agent-sec-lookup.iykykblog.workers.dev
q 70

Look up SEC EDGAR company information by ticker, CIK, or company name. Returns company profile and recent filings.

paid API x402
from $0.0050
Agent-Domain-Trust agent-domain-trust.iykykblog.workers.dev
q 70

Assess the trustworthiness of a domain: RDAP registration age and registrar, DNS records (A/MX/TXT-SPF), and HTTPS reachability. Returns a 0-100 trust score with signals and an audit receipt.

paid API x402
from $0.01
Runmydata runmydata.com
q 70

DryScout01 Hello by RunMyData: paid x402 connectivity check on Base mainnet ($0.001 USDC). Returns {"status":"ok"}.

paid API x402
from $0.0010
Manyfish-Seller manyfish-seller.redcliff-d7368db1.westus2.azurecontainerapps.io
q 70

Try with $0.050 in free shared credit once per wallet. No deposit or on-chain transaction; wallet sign-in required. Credit, daily budget and availability apply. Analyze a selected Base token pool: USD liquidity, 24h volume, price change, ru…

paid API x402
$0.10 · 30d 8 tx
Aurelius-Node-02-Socal aurelius-node-02-socal.onrender.com
q 70

Aurelius Node 02: Real-time SoCal Pacific Gateway ground-truth oracle for cross-referential supply chain AI agents. Serves a live, actively updated 42-item matrix (13 subfields each) tracking Port of LA/LB vessel queues & gate turn times, A…

paid API x402
$0.50 · 30d 10 tx
Stablebase stablebase.dev
q 70

List all Stablebase projects owned by the calling wallet.

paid API x402
$0.07 · 30d 7 tx
Combinatorics combinatorics.openverbs.com
q 70

The n-th Catalan number Cₙ = C(2n, n)/(n+1), counting balanced bracketings, binary trees, and many other structures. Requires n ≤ 10000.

paid API x402
$19.91 · 30d 1,387 tx
Distribution distribution.openverbs.com
q 70

Student's t distribution with df degrees of freedom (> 0). `function` selects the density (pdf), cumulative distribution (cdf) or quantile / inverse-CDF.

paid API x402
$19.91 · 30d 1,387 tx
Geometry geometry.openverbs.com
q 70

Diameter, circumference and area of a circle from its radius.

paid API x402
$19.91 · 30d 1,387 tx
Matrix matrix.openverbs.com
q 70

Solve the linear system A·x = b for a square coefficient matrix A and vector b via Gaussian elimination with partial pivoting. A non-square A or a b of the wrong length is a clean 400. A singular system is NOT an error — it returns a succes…

paid API x402
$19.91 · 30d 1,387 tx
Preflight preflight.openverbs.com
q 70

Fetch any URL and, without paying, decode its x402 402 Payment Required challenge: price (atomic and formatted for known stablecoins), asset, network, payTo, resource, description, timeout and any input schema. Flags MPP and Bazaar discover…

paid API x402
$19.91 · 30d 1,387 tx
Random random.openverbs.com
q 70

Generate cryptographically-secure random bytes, returned as hex, base64 or base64url.

paid API x402
$19.91 · 30d 1,387 tx
Useragent useragent.openverbs.com
q 70

Break a User-Agent string into browser, engine, operating system (each with a version) and device type. Unidentifiable components are reported as null.

paid API x402
$19.91 · 30d 1,387 tx
Fraction fraction.openverbs.com
q 70

Reduce a fraction to lowest terms and describe it: numerator/denominator (denominator normalized positive), sign, whether it is an integer, and a mixed-number form when improper. A zero denominator is a clean 400.

paid API x402
$19.91 · 30d 1,387 tx
Web web.openverbs.com
q 70

Fetch a URL and extract every hyperlink on the page, each resolved to an absolute URL and classified as internal vs external (by registrable host), with its anchor text, rel attributes (nofollow, sponsored, ugc) and whether it opens in a ne…

paid API x402
$19.91 · 30d 1,387 tx
Mpp mpp.tracefast.xyz
q 70

TraceFast knowledge graph: address attributes of an Ethereum address — account nature, on-chain presence and derived traits. Path address: 0x-prefixed, 40 hex. Attribute dictionary: https://docs.tracefast.xyz/api/address-attributes.md

paid API x402
$3.16 · 30d 54 tx
X402-Accelerometer-Feed x402-accelerometer-feed.fly.dev
q 70

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 agenttools-hub.vercel.app
q 70

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
Svg-Bar-Chart-Renderer svg-bar-chart-renderer.jannioura.workers.dev
q 70

Deterministic, paid-per-render SVG bar chart generator for LLM agents. Accepts labeled scalar data and layout options, performs exact geometry math (min/max normalization, nice-interval y-axis ticks, label spacing, bar-width distribution), …

paid API x402
$1.60 · 30d 95 tx
Wasm-Geotiff-Transcoder wasm-geotiff-transcoder.jannioura.workers.dev
q 70

Decodes a GeoTIFF/COG (https URL or inline base64), reads the selected RGB bands via windowed overview reads, applies a tone-map stretch, and returns a PNG/WebP plus georeference metadata (CRS, bounds, pixel scale) and source stats. Limits:…

paid API x402
$1.60 · 30d 95 tx
Spa-Dom-To-Md spa-dom-to-md.jannioura.workers.dev
q 70

Renders JavaScript-heavy SPA pages in real headless Chromium via Cloudflare Browser Rendering, waits for network-idle / selector-ready, strips nav/footer/script chrome, and serializes the fully-rendered DOM into clean, LLM-ready Markdown.

paid API x402
$1.60 · 30d 95 tx
Simfuse simfuse.app
q 70

Search SimFuse prepaid travel eSIM data plans for 200+ countries and regions. Filter by destination (ISO country code), days, data and max price; every result has its price and a purchase_url to buy that eSIM with x402 (USDC on Base) or by …

paid API mpp
$16.69 · 30d 257 tx
Www www.x402joker.com
q 70

Pay-per-joke vending machine: send USDC, get a fresh Claude-generated joke. Optional "theme" picks the topic.

paid API x402
$0.03 · 30d 3 tx
Agentkit0 agentkit0.com
q 70

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
Agent-Research-Api agent-research-api.onrender.com
q 70

ResearchPi: Extract readable text, title and links from one public HTTPS HTML page. Source URL and retrieval time included. No JavaScript, PDF, login or private network access. Maximum 2 MB HTML / 60,000 text characters.

paid API x402
$179.80 · 30d 15 tx
Gate-Network gate-network.matsutake-lab.workers.dev
q 70

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
Companylens companylens.ve1iko.chatgpt.site
q 70

Resolve a UK legal company name or registration number to a sourced Companies House profile. Returns company status, incorporation, SIC codes, registered office, filing due dates and overdue flags. Use for company research and CRM enrichmen…

paid API x402
from $0.01
X402 x402.telnyx.com
q 70

Chat completions via Telnyx Inference (google/gemma-2b-it). OpenAI-compatible. $0.002 USDC per call.

paid API x402
$4.70 · 30d 364 tx
Dev dev.gavedu.com
q 70

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
X402 x402.onhub.ai
q 70

Text completion using the model selected in the request body.

paid API x402
$0.57 · 30d 83 tx
Srv1553682 srv1553682.hstgr.cloud
q 70

Crypto Fear & Greed index (current + 7-day history) via the verified-quality meta-router: in-house first, outcome-logged, never charged on failure.

paid API x402
$0.04 · 30d 8 tx
Onchain-Toolkit onchain-toolkit.bowling-anthony.workers.dev
q 70

Live gas price on Ethereum, Base, Arbitrum, Optimism or Polygon, in gwei plus the cost of a plain transfer. Compare several chains in one call.

paid API x402
$0.33 · 30d 44 tx