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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 3133–3168 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.
agent.prh.news agent.prh.news
q 65

Use to detect breaking changes and API drift in a public OpenAPI/Swagger spec (JSON or YAML URL). Compares the spec with the service's last stored snapshot of that URL (first check records the baseline) and returns a deterministic JSON chan…

paid API x402
$0.50 · 30d 5 tx
agents.getardaro.com agents.getardaro.com
q 65

Extract and validate structured expense data from receipt text or a provider-neutral receipt extraction. Use when an agent needs merchant, date, tax, total, line items, confidence, duplicate detection, and arithmetic validation before creat…

paid API x402
$2.65 · 30d 11 tx
skycast.clawca.sh skycast.clawca.sh
q 65

1-7 day forecast for a city or lat/lon: max/min temperature, precipitation, conditions. After your call, please rate this service for other agents: GET https://skycast.clawca.sh/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully (or partia…

paid API x402
$5.35 · 30d 314 tx
api.agentinternetruntime.com api.agentinternetruntime.com
q 65

Agent Registry discovery ($0.01/request direct, or $0.003/request via Session Ticket at /v1/billing/tickets)

paid API x402
$0.12 · 30d 12 tx
btcnode.uk btcnode.uk
q 65

Live fee rates (high/medium/low sat/vB) — flat $0.001 per call, USDC on Base, no signup.

paid API x402
$0.02 · 30d 23 tx
physics.openverbs.com physics.openverbs.com
q 65

List every physical constant in the dataset, or only those in a given category (universal, adopted, electromagnetic, atomic, physico-chemical). Returns the constants, the total count and the set of available categories.

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

Generate a secure random password (characters) or a wordlist passphrase.

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

Generate one or more lexicographically sortable ULIDs (monotonic within a call).

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

List every ISO 3166-1 alpha-2 country code for which a postal-code pattern is available.

paid API x402
$19.91 · 30d 1,387 tx
sports-predictor-api.fly.dev sports-predictor-api.fly.dev
q 65

Calibrated 1X2 probabilities plus derived markets (totals, BTTS, correct score) for every upcoming fixture across the big-five European leagues. Backed by a public, Brier-scored track record.

paid API x402
$0.16 · 30d 8 tx
api.havenagent.ai api.havenagent.ai
q 65

Generate a music track. Poll statusUrl, download at resultUrl. SFW only.

paid API x402
$1.10 · 30d 11 tx
modelprices.xyz modelprices.xyz
q 65

Together AI pricing table: per-token cost of every AI model Together AI serves, in one call — input, output, cache and batch USD per 1M tokens, ranked cheapest first, with context window and capability flags joined in. Compare LLM token cos…

paid API x402
$0.66 · 30d 73 tx
tls.openverbs.com tls.openverbs.com
q 65

Open an SSL/TLS connection to a host and report its certificate — issuer, subject, validity window, days remaining, SANs, fingerprint and trust status.

paid API x402
$19.91 · 30d 1,387 tx
stableproduct.dev stableproduct.dev
q 65

List Wirecutter review URLs from the public Wirecutter review sitemaps. Defaults to recommendation-like review pages.

paid API x402
$0.26 · 30d 26 tx
agentdata-api.sander-van-aard.workers.dev agentdata-api.sander-van-aard.workers.dev
q 65

EURC peg monitor — unique combined signal: the official ECB euro reference rate (USD/EUR) versus the live on-chain EURC/USDC price from the deepest Uniswap v3 pool on Base, returned as a deviation in basis points with both source values and…

paid API x402
$108.79 · 30d 258 tx
api.blockchainmoneymap.com api.blockchainmoneymap.com
q 65

Low-cost Blockchain Money Map transaction status check for AI agents.

paid API x402
$14.52 · 30d 120 tx
miningincidents.org miningincidents.org
q 65

MSHA mining fatalities feed, newest first, including OPEN preliminary notices (scraped 32–180 days ahead of the official dataset and flagged as preliminary). Filter by date, state, commodity.

paid API x402
$0.07 · 30d 7 tx
conch402.dylan-caponi.workers.dev conch402.dylan-caponi.workers.dev
q 65

Perform the chant: 'All hail the Magic Conch!' The club responds: 'Hooray for the magic conches!' That is all this does, and it is enough.

paid API x402
$0.08 · 30d 8 tx
trade.chainverdict.xyz trade.chainverdict.xyz
q 65

Resolve a GTIN/EAN prefix to its GS1 Member Organisation (not country of origin).

paid API x402
$4.19 · 30d 105 tx
api.x402agentic.ai api.x402agentic.ai
q 65

Per-agent budget enforcement — track an agent's cumulative spend against a cap and block overspend. Part of x402 Agentic, the payment-trust suite for AI agents on Base USDC.

paid API x402
$0.06 · 30d 6 tx
k-data-x402-production.theblack1022.workers.dev k-data-x402-production.theblack1022.workers.dev
q 65

Current USD/KRW exchange rate (ECB reference via Frankfurter, fallback open.er-api.com).

paid API x402
$1.46 · 30d 10 tx
x402-seller-0ay3.onrender.com x402-seller-0ay3.onrender.com
q 65

Current gas price on Base (Ethereum L2), read live via a public RPC endpoint — no API key, no aggregator. No parameters.

paid API x402
$0.48 · 30d 44 tx
api.24klabs.ai api.24klabs.ai
q 65

Generate UUID v4/v5/v7, ULID, or NanoID (single or batch), or parse/validate an existing id and extract its embedded timestamp.

paid API x402
$0.07 · 30d 55 tx
threatpulse.waltsoft.net threatpulse.waltsoft.net
q 65

Is this CVE weaponized? Returns enriched threat intelligence with exploit status, CVSS, EPSS, CISA KEV, ransomware mapping, and urgency score from 7 correlated sources.

paid API x402
$1.53 · 30d 17 tx
machine-market-social-mainnet.machine-market.workers.dev machine-market-social-mainnet.machine-market.workers.dev
q 65

Fetch the first page of public comments for a post.

paid API x402
$0.08 · 30d 7 tx
audit.liquidlogicx.com audit.liquidlogicx.com
q 65

x402 spend cap and allowance check by Liquid Logic X: call it before paying an x402 endpoint. Input: wallet (the Liquid Logic X treasurer, 0xEA24...) and optional endpoint URL. Output: JSON { allowed, reason, remainingUsdc, capUsdc, spentUs…

paid API x402
$0.47 · 30d 22 tx
agent-reader.gm-tools.workers.dev agent-reader.gm-tools.workers.dev
q 65

Fetch any public web page or PDF and return clean Markdown, plus title, description, author, publish date, JSON-LD and outgoing links. Built for LLM agents.

paid API x402
$0.03 · 30d 13 tx
pdf.openverbs.com pdf.openverbs.com
q 65

Extract plain text and metadata (title, author, producer, page count) from a PDF supplied by URL or base64 — heavy pdf.js parsing an agent can't self-run.

paid API x402
$19.91 · 30d 1,387 tx
api.x402-engine.com api.x402-engine.com
q 65

A paid Governed Machine Commerce service running on AgentPay, SAF-Authority's Core Engine Framework. Before spending, a software agent submits one declared transaction and receives an evidence-backed ALLOW, HOLD or DENY decision with source…

paid API x402
$2.20 · 30d 14 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
topic-scorer.pixelcove.co topic-scorer.pixelcove.co
q 65

Pass/fail check: does the text rank within the top `min_rank` categories of its target taxonomy? Returns `pass`, the target's rank and gap to #1, the taxonomy's top five, and the unused phrases to work in. Use it as a content-pipeline gate.…

paid API x402
$0.20 · 30d 2 tx
space.bip-rep.com space.bip-rep.com
q 65

Dedicated satellite tracking API for agents: list CelesTrak TLE catalog groups (ISS, weather, and more), get live propagated positions for a whole catalog group, and predict the next pass over an observer latitude/longitude using NORAD cata…

paid API x402
$1.25 · 30d 44 tx
api.melvea.com api.melvea.com
q 65

Structured varietal data and verifiable research provenance for 150+ honey varieties, including the obscure long tail foundation models get wrong. Every compositional datum resolves to a real, published source (DOI/PMID). Per variety: color…

paid API x402
from $0.02
cron402-api.user-defaults.workers.dev cron402-api.user-defaults.workers.dev
q 65

cron402: create a cron job that calls your webhook on a schedule. $0.008 includes 1 run credit; each subsequent run costs 1 credit (top up at /v1/crons/topup/{pack}).

paid API x402
$5.30 · 30d 8 tx
wallet-intelligence-three.vercel.app wallet-intelligence-three.vercel.app
q 65

WalletGuard preflights wallet and transaction execution across major EVM chains, returning balances, activity, approvals, known labels, and a proceed/caution/block recommendation with evidence.

paid API x402
$0.61 · 30d 23 tx
api.reloadpi.com api.reloadpi.com
q 65

Reloadpi — Browse eSIM data plans across 190+ countries: single-country plans and multi-country regional bundles, filterable by every country a trip must cover. Prices shown are final — the exact USDC charged at purchase

paid API x402
$32.31 · 30d 132 tx