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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 2917–2952 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.
shared-hold-api.onrender.com shared-hold-api.onrender.com
q 65

Store payload to Shared Hold boundary - 0.005 USDC per successful hold

paid API x402
$0.19 · 30d 30 tx
masterclaw.dev masterclaw.dev
q 65

OpenAI-compatible chat completions backed by DeepSeek (GET probe variant). Answers open-ended questions and returns reasoned analysis.

paid API x402
$0.10 · 30d 2 tx
cryptoshark.duckdns.org cryptoshark.duckdns.org
q 65

Current USD market snapshot for a supported cryptocurrency symbol or CoinGecko asset name

paid API x402
$20.12 · 30d 7 tx
x402.dellbot.win x402.dellbot.win
q 65

Mid-tier OpenAI-compatible chat completion. Qwen3 235B (instruct/thinking/VL/next), DeepSeek V3.2, GLM 5.2, venice-uncensored 1.2, GLM 4.6/4.7, Kimi K2.5, MiniMax M3 Preview, Nemotron 3 Ultra 550B, DeepSeek V4.1 Flash, Gemma 4 26B. Supports…

paid API x402
$5.59 · 30d 19 tx
api.hyperd.ai api.hyperd.ai
q 65

Aggregated token metadata (CoinGecko + DefiLlama): market cap, supply, addresses across chains, recent volume.

paid API x402
$17.27 · 30d 28 tx
api.proxyllm.ai api.proxyllm.ai
q 65

LLM cost scout: send your monthly OpenAI API spend in USD and get back the flat ChatGPT/Codex subscription tier that absorbs it through the ProxyLLM gateway, the exact new monthly total and savings, the live model catalog, and machine-reada…

paid API x402
$0.01 · 30d 2 tx
api.octodamus.com api.octodamus.com
q 65

Octodamus — AI oracle for crypto and tokenized NYSE markets. BUY/SELL/HOLD signals, Polymarket edges, Fear & Greed, macro regime. Ed25519 signed.

paid API x402
$0.46 · 30d 8 tx
us-agentic.com us-agentic.com
q 65

Fetch a public URL and return clean LLM-ready markdown from static HTML.

paid API x402
$10.00 · 30d 5 tx
music.jamesbpollack.com music.jamesbpollack.com
q 65

Search the James B. Pollack music catalog by mood, BPM, key, year, or similarity

paid API x402
$0.15 · 30d 3 tx
toolbelt402.tpoborne.workers.dev toolbelt402.tpoborne.workers.dev
q 65

Check a URL before fetching it: is it alive, final URL after redirects, HTTP status, content type, HTML title, and whether robots.txt allows your user-agent. Link checker and fetch preflight for agents.

paid API x402
$0.02 · 30d 4 tx
book-bot.app book-bot.app
q 65

Search audiobookbay.lu for audiobooks. Returns up to ~12 result entries with slugs that can be passed to /api/audiobooks/details for magnet links.

paid API x402
$0.02 · 30d 4 tx
property-risk-passport-api.lifebite-app.workers.dev property-risk-passport-api.lifebite-app.workers.dev
q 65

Evaluate a US property address for parcel match, FEMA flood zone, flood proximity, taxing entities, school district, permit history, zoning/land-use context, insurance red flags, due-diligence risk score, quality score, recommended next ste…

paid API x402
$0.01 · 30d 7 tx
api.ishtar.numetal.xyz api.ishtar.numetal.xyz
q 65

Ask Ishtar — pay-per-answer AI dating & relationship coaching for agents. POST a question, get one candid, chaperoned coaching answer.

paid API x402
$4.14 · 30d 10 tx
fetchharbor.benlab.download fetchharbor.benlab.download
q 65

Fetch one public HTTP(S) URL for research, extraction, or agent workflows. Returns the final URL, upstream status, content type, and decoded content. Private, local, metadata, and reserved destinations are blocked; redirects are revalidated…

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

Screen untrusted text against known prompt-injection patterns (pattern matching, not a model). Returns which named patterns matched.

paid API x402
$0.01 · 30d 3 tx
cc0.company cc0.company
q 65

cc0.company — x402 agent-services marketplace on Base (USDC): CC0 image generation, market-data digests, and third-party agent tools. This endpoint: cc0pedia — look up any CC0 creator, collection, or work by name/slug and get provenance, cr…

paid API x402
$76.28 · 30d 66 tx
kristo-intelligence-api.onrender.com kristo-intelligence-api.onrender.com
q 65

Live DeFi trading signal: action, confidence and one-line reasoning for ETH/ONDO/KAITO/DEGEN — refreshed under 5 minutes from live market data.

paid API x402
$0.04 · 30d 13 tx
open-research-agent.com open-research-agent.com
q 65

AI-generated standard research report (Open Research Agent)

paid API x402
$0.70 · 30d 3 tx
www.extendcontent.com www.extendcontent.com
q 65

Queue a production video render at $0.10/min USDC (billed by the second, rounded to $0.001). Same Edit JSON as staging (https://shotstack.io/docs/api/). Poll status; POST /shotstack/frames for stills at $0.002 each.

paid API x402
$0.38 · 30d 10 tx
preipo-feed.vercel.app preipo-feed.vercel.app
q 65

OpenAI pre-IPO fundamentals as JSON: FY2025 revenue, monthly revenue, ChatGPT users and subscribers, March 2026 round size and post-money valuation, new round target and valuation in talks, SoftBank bond financing and stake, valuation-to-ru…

paid API x402
$0.04 · 30d 4 tx
web-production-7442b.up.railway.app web-production-7442b.up.railway.app
q 65

Purchase one canonical Nob7e botanical intelligence product selected from the public marketplace.

paid API x402
$0.07 · 30d 2 tx
email.intel.rallylive.ca email.intel.rallylive.ca
q 65

Change watch for spf authorizes mailjet: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after va…

paid API x402
$4.43 · 30d 71 tx
api.creativeforesight.io api.creativeforesight.io
q 65

Foresight API request

paid API x402
$2.54 · 30d 36 tx
dartapi.ljaysk.com dartapi.ljaysk.com
q 65

Korean corporate disclosure (DART) event stream, cursor-based delta. All filings, classified with importance score.

paid API x402
$0.02 · 30d 5 tx
filingdelta.xyz filingdelta.xyz
q 65

Filing change and materiality signals from SEC filings

paid API x402
$0.60 · 30d 6 tx
prediction-bot-iggf.onrender.com prediction-bot-iggf.onrender.com
q 65

Top 3 Polymarket/Kalshi markets by live X (Twitter) discussion intensity with sentiment scores — agent discovery scan at $0.01 (aligns with Bazaar /top index pricing).

paid API x402
$1.49 · 30d 10 tx
evensteven.bet evensteven.bet
q 65

A bettor's Even Steven positions on one market: stakes that pay even money at liquidity, the early line each bet locked, and claim status, with the flat 2% fee on stake already paid upfront.

paid API x402
$510.37 · 30d 30 tx
lumierepaycheck.org lumierepaycheck.org
q 65

Full trust report for an x402 endpoint: score breakdown, current quote, wallet/price events, and paid delivery checks. For teams: per-agent spend limits, signed receipts, and an audit trail at lumierepaycheck.org/subscribe.

paid API x402
$118.43 · 30d 448 tx
api.satledger.org api.satledger.org
q 65

A satledger workspace and the units of recording you pay for, from 0.50 upward. One unit is one recorded event; an anchor costs 100. Exports and reads are free. Returns an API key on payment.

paid API x402
$2.05 · 30d 5 tx
runtime.rootlogos.com runtime.rootlogos.com
q 65

Offer one bounded contribution to Root Logos for constitutional evaluation and preservation. Current open call: https://rootlogos.com/agent-call.json. Payment grants no admission or authority.

paid API x402
$6.13 · 30d 7 tx
automaton.outlier.money automaton.outlier.money
q 65

Real-time crypto unusual-activity signal: coins with abnormal volume/price vs their own baseline, ranked, early-flagged, across the top 250 by market cap.

paid API x402
$0.06 · 30d 6 tx
business-frameworks.matryoshka-paradigms.workers.dev business-frameworks.matryoshka-paradigms.workers.dev
q 65

Business Frameworks business-frameworks/value/why@1.0 — Why value is the objective, and what moves it. Call when an agent needs the operating logic behind value before using the scale bands and decision rules below it. Returns 350 tokens of…

paid API x402
$0.04 · 30d 4 tx
api.aurenic.org api.aurenic.org
q 65

Total US public debt outstanding, to the penny, latest available

paid API x402
$0.09 · 30d 45 tx
base-token-check.fly.dev base-token-check.fly.dev
q 65

Base ERC-20 check before an agent buys or holds a token. Input: one contract address. Output: allow, warn, or block. Block: not a contract, not an ERC-20, zero supply, or the owner or token contract holds at least 50 percent. Warn: 20 to 50…

paid API x402
from $0.01
launchcheck-x402.fly.dev launchcheck-x402.fly.dev
q 65

Deep red-team a product or technical proposal before a consequential investment. Uses a larger reasoning budget to test counter-theses, hidden dependencies, supplied economics, and decisive unknowns. Typical completion time is ~2-3 minutes.…

paid API x402
$6.00 · 30d 3 tx
api-production-24833.up.railway.app api-production-24833.up.railway.app
q 65

France: French company verification (KYB) by SIREN in one call. Legal identity, intra-EU VAT number checked live in VIES, active/closed status, age, activity, headcount, establishments, insolvency proceedings from BODACC (safeguard, receive…

paid API x402
from $0.0020