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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 361–396 of 473
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.
Weather weather.x402.press
q 65

Weather + nature intelligence: current conditions, 7-day forecasts, earthquakes, volcanoes, air quality, solar activity, and marine data. Multi-source (ECMWF, NOAA GFS, USGS, NASA) with premium AI reasoning endpoint for natural-language wea…

paid API data x402
$0.95 · 30d 38 tx
NewsMesh api.newsmesh.co
q 65

Real-time news API for AI agents. Search and filter articles from thousands of global sources.

paid API data x402
from $0.01
Tunelo Agent APIs agents.tunelo.co.za
q 65

South African x402 micropayment APIs on Polygon: a live government tender feed ($0.02 USDC/call) and a SARS crypto-tax estimate ($0.005 USDC/call). Pay-per-call in USDC, no signup, built with @x402/express v2.

paid API data x402
from $0.0050
Sippar Token Market Data sippar.network
q 65

Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change and volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener plus on-chain reads; response includes the require…

paid API data x402
$271.25 · 30d 177 tx
PayAPI Market Weather Data API weather.payapi.market
q 65

Weather API returning current conditions, forecasts up to 16 days, historical data and air quality for any location worldwide, backed by Open-Meteo data, at $0.001 per call in USDC on Base.

paid API data x402
$0.48 · 30d 286 tx
PayAPI Market UK Vehicle Data API vehicle.payapi.market
q 65

UK vehicle data by registration plate: DVLA vehicle details, MOT test history, tax status and CO2 emissions.

paid API data x402
$0.48 · 30d 286 tx
PayAPI Market UK Company Data API company.payapi.market
q 65

Search UK companies by name using Companies House data. Returns matching companies with company number, status, type, incorporation date and registered address.

paid API data x402
$0.48 · 30d 286 tx
difftool difftool.leeworks.dev
q 65

Structural diff + patch API for agents: text and JSON diffs, RFC-6902 JSON Patch generation and application. Deterministic output suitable for automated pipelines. 0.03 USDC per call via x402 on Base.

paid API data x402
from $0.03
Romny Polymarket + Copy Trade Data api.romny.dpdns.org
q 65

Paid Polymarket panel/outcomes/edges/rules alerts and copy-trade monitored wallets, wallet profiles, and trades via x402 on Base (0.01 USDC/query).

paid API data x402
$0.04 · 30d 3 tx
ToolFeeds SEC EDGAR api.toolfeeds.com
q 65

Normalized SEC EDGAR company fundamentals. Divergent XBRL tags are resolved to a stable metric vocabulary and fiscal periods aligned across filers, so figures are directly comparable. Company lookup, filings and the metric vocabulary are fr…

paid API data x402
from $0.04
x402-extract-api api.jomofagan.com
q 65

Pay-per-call API for AI agents: clean webpage extraction to markdown/text, schema-validated structured JSON extraction, HS/tariff code classification, and trade-compliance document (commercial invoice / packing list) field extraction. Price…

paid API data x402
from $0.0020
Comrades of War — Spanish Gaming Community Archive API comrades-of-war.com
q 65

Research nearly five years of a popular Spanish Call of Duty clan and a rich SA-MP role-play community corpus. The archive preserves 110,023 posts and exposes 39,309 curated public posts for free search. Selected pages return citation-ready…

paid API data x402
from $0.02
Official Source Evidence evidence.regulavita.com
q 65

Pay-per-call source extraction, 30-day change monitoring, SEC Form D triggers and company dossiers, OFAC payment preflight and signed evidence, SEC filing deltas, current company profiles, and isolated Python execution for autonomous agents…

paid API data x402
$0.15 · 30d 7 tx
PocketFactory Korean Data API api.pocketfactory.ai
q 65

Pay-per-call Korean official-data APIs for business registration status, disclosed tax delinquency records, and Korean news search. x402 v2 with USDC on Base mainnet.

paid API data x402
$0.05 · 30d 5 tx
Forge Launch Signals + x402 Verifier forgesignals.org
q 65

Two paid endpoints, USDC on Base (exact scheme, xpay facilitator). GET /launch-signals ($0.03): live pump.fun launch signals - up to 100 newest memecoin launches with normalized screening verdicts (class + reason + measured holder concentra…

paid API data x402
from $0.01
GPUOps Web Scraper scrape.gpuops.io
q 65

Web scraping API. Fetch any URL extract clean text metadata and structured data. Pay-per-call with USDC on Base via x402.

paid API data x402
Disruptive Concepts disruptive-concepts.com
q 65

Weekly curated arXiv shortlist with disruptiveness scores and structured JSON for AI agents. Humans read explainers free. Agents pay USDC on Base via x402 for papers ($0.01), articles ($0.02), scores ($0.005), feed ($0.05), and the week bun…

paid API data x402
from $0.01
Moneytest 402 Radar moneytest-x402-api.indierepo.chatgpt.site
q 65

Verified public HTTP 402 and x402 surface catalog with freshness, deterministic digest, public-safe evidence, and Base USDC reward receipts for autonomous agents.

paid API data x402
from $0.01
54ch10 page extraction / public URL to markdown 54ch10.uk
q 65

GET /v1/fetch $0.005 SSRF-safe page extraction (public URL → markdown). Then GET /v1/open $0.015 · GET /v1/domain $0.008 · GET /v1/stack $1/80. Analytics-only, not advice. Start: https://54ch10.uk/wire.md.

paid API data x402
from $0.0010
Clink Forge api.clinkforge.com
q 65

Machine-purchasable government and civic data products - CVEs, safety recalls, CPI, Federal Register, US debt, bank profiles, weather alerts, housing, air quality, UK companies - sold per call over x402 (USDC on Base). Every response carrie…

paid API data x402
$0.01 · 30d 10 tx
Neurobird Search search.neurobird.com
q 65

Web search for AI agents. One call fans out across several engines, fuses the rankings with reciprocal rank fusion, then fetches the top pages and returns the passages that answer the query already extracted, so a follow up fetch is usually…

paid API data x402
from $0.0050
402Signal 402signal.com
q 65

402Signal helps AI agents find paid APIs and check current payment offers against their price, network and request requirements before paying the seller. A qualifying route costs $0.003 USDC; normal misses are free. Routing payments are sup…

paid API data x402
from $0.0030
BountySignal bountysignal-radar-v2.minhtuan36zzz97948.chatgpt.site
q 65

Read-only evidence pre-check for public bounty URLs with explicit x402 pricing on Base.

paid API data x402
from $0.0010
X1-BaaS Scraping API api.tazpal.com
q 65

Stealth scraping API for AI agents. Clean Markdown from any URL. x402 crypto payments. MCP-native.

paid API data x402
from $0.0050
Molduk Daily Signal api.moldukbot.com
q 65

One paid unlock: live gap watch + paper book + test-wallet scalp exits. 1 USDC on Base. Not financial advice. Paper PnL is noise, not a track record.

paid API data x402
from $1.00
IRS Internal Revenue Bulletin API irb-precedent-api.canvas-cart.workers.dev
q 65

Verbatim IRS Revenue Rulings, Procedures, Notices & Treasury Decisions since 2003. Free search over 6,300+ docs; $0.01/doc via x402 on Base.

paid API data x402
$0.07 · 30d 7 tx
Global Intelligence Exchange intelexchange-ox.com
q 65

Real-time intelligence lookups for autonomous agents, paid per query via x402/USDC on Base. Three vectors: US Sanctions List Screening (checks both the Trade.gov Consolidated Screening List and the UN Security Council Consolidated Sanctions…

paid API data x402
from $0.02
RadhikaChain — Kernel Threat Intelligence & ZK Proofs x402.radhikachain.xyz
q 65

Pay-per-call threat intelligence captured in-kernel via XDP/eBPF across a multi-node fleet. Live attacker IPs with TCP flags, TTL and OS fingerprints from real attacks — not synthetic datasets. Multi-node corroboration filters noise: only w…

paid API data x402
$0.06 · 30d 6 tx
Deploid Enrich enrich.deploid.now
q 65

Work email enrichment for AI agents. Find one work email from a LinkedIn profile or name and company. 0.15 USDC on Base only for a DELIVERABLE result; no match and rejected quality are not charged. Async jobs with free polling. Limited publ…

paid API data x402
Fetcher api.fetcher.cloud
q 65

Pay-per-call API tools for AI agents. Render JavaScript pages in a real headless browser, extract clean article content as Markdown, resolve URL redirect chains, and check domain availability with RDAP — paid with x402 micropayments in USDC…

paid API data x402
from $0.0020
Wall Street Wiki Canon canon.wallstreet.wiki
q 65

Finance reference lookup across nine .wiki sites plus 30 deterministic formulas - options pricing and Greeks, bond risk, performance ratios, VaR, IRR, fund multiples, deal math and the NYSE trading calendar - each computed with a verifiable…

paid API data x402
from $0.25
Recall Kitchen app.recallkitchen.com
q 65

Recall Kitchen is an MCP server and API giving AI agents real-time access to food and product recall data. Search recalls by keyword, look them up by UPC barcode, or identify a product from a photo. Tools: search_product_recalls, search_pro…

paid API data x402
$0.03 · 30d 1 tx
Argus arguswire.dev
q 65

x402 payment-gated intelligence API aggregating 430+ news and data feeds across markets, crypto, macro, and geopolitics

paid API data x402
from $1.00
DAXPT daxpt.com
q 65

Solana measurements for agents on XRPL x402. One row per mint: now (price, liquidity, holders, top-10, organic), watched (age, peak liquidity, drawdown), versus_book (percentiles against the full complete set). You apply the filters. No ran…

paid API data x402
from $0.15
Veriton HTML to JSON veriton-html-json-api.netlify.app
q 65

Metered HTML to structured JSON for agents. Live x402 on Base USDC. Free demo; paid routes $0.02-$0.05/call. Remote MCP included.

paid API data x402
$7.97 · 30d 12 tx
Quentrix x402 API x402.minioffice.xyz
q 65

Quentrix — autonomous AI agent (human-supervised by ManageMaker). Sourced research briefs ($0.05/call) and EN/RU/PT translation ($0.02/call), paid per call in USDC over x402 on Base mainnet.

paid API data x402
from $0.02