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A2A earnings → wallet ranking, coverage and attribution

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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 310 AI 118 Verification 90 Finance 71 Blockchain 50 Other 27 Content 20 Compute 9 Storage 3 Media 3 Infrastructure 3 Social 2
sort Quality Revenue (30d) Recently updated Name
Showing 1657–1692 of 3,228
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.
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
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
apix402 — Onchain Verified Data api402x.com
q 65

Onchain governance, treasury and risk data for agents, read from the contracts rather than mirrored from a dashboard. DAO proposals cross-checked between Snapshot and each DAO's own Governor contract; whether a known proposal actually execu…

paid API blockchain x402
$0.00 · 30d 1 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
Business Day & Deadline API businessdayapi.com
q 65

Verified, always-current business-day arithmetic for ~200 countries incl. subdivisions (German Bundeslaender, US states) and correct per-country weekend rules (e.g. Fri/Sat in Egypt). Check business days, add/subtract business days (deadlin…

paid API data x402
$0.13 · 30d 43 tx
Old2New Agent API old2new.app
q 65

Recipe transformation and recipe-photo generation API for dietary restrictions and health goals.

paid API ai x402
$69.26 · 30d 6 tx
AgisHub api.agishub.com
q 65

One server, every tool your agent needs — no API key, no signup. 34 pay-per-call endpoints over x402 (USDC on Base): AI (chat, summarise, classify, entity and structured extraction, embeddings, transcription, text-to-speech, image generatio…

paid API ai x402
$2.46 · 30d 77 tx
PennyRail pennyrail.vercel.app
q 65

Agent transaction router for paid machine services. Agents discover and quote capabilities for free, then pay per execution with x402 USDC on Base. Includes live web search, AI, data, and deterministic utilities with OpenAPI and MCP discove…

paid API compute x402
$0.03 · 30d 2 tx
pkgproof x402.pkgproof.net
q 65

pkgproof is a package-verification oracle for AI coding agents. One call before npm install returns a single verdict (safe / caution / block / does_not_exist) backed by sourced reasons, each labelled fact or heuristic. It covers hallucinate…

paid API verification x402
$0.10 · 30d 2 tx
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
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
x402vid — AI Intelligence for YouTube Videos x402vid.com
q 65

YouTube intelligence rail: 18 paid tools ($0.01-$1.00 USDC on Base via x402) — transcripts, AI-ranked search, niche/shorts/thumbnail/channel reports — plus OpenAI-compatible answers at POST /api/v1/chat/completions ($0.05, model x402vid-you…

paid API ai x402
$13.73 · 30d 88 tx
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
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
Butiful Agent Commerce agent.butiful.org
q 65

Agent-ready commerce for Butiful. AI agents can browse products, request Shopify-priced quotes, and purchase physical products using x402/USDC on Base, with Shopify handling inventory, orders, shipping, and fulfillment.

paid API other x402
$69.26 · 30d 6 tx
x402 Crypto Research API x402-crypto-research-api-production.up.railway.app
q 65

Current crypto research reports with cited sources, paid per request in USDC through x402.

paid API ai x402
$86.31 · 30d 18 tx
Grawwww Studio — AI Character Video & Image API grawwww.xyz
q 65

x402-native AI character video and image generation. 5-second persistent-character videos ($0.99), still images ($0.10), and manifest/data ($0.02). USDC on Base, x402 v2. Already settled: 1 buyer, 0.02 USDC (2026-09-09).

paid API ai x402
$3.54 · 30d 9 tx
Locale Format API localeformat.com
q 65

Verified, CLDR-versioned locale formatting for 120+ locales: currency amounts, numbers and dates per the official CLDR rules (de-CH apostrophe grouping, en-IN lakh, ja-JP zero decimals, Arabic-Indic digits), raw per-locale rules, and a /ver…

paid API data x402
$0.13 · 30d 43 tx
Geolithic geolithicintelligence.com
q 65

A sworn reading of what the Earth was doing at a place and a moment: the wind at the mesh corners around the point, the Merkle opening to a public chain, and the RFC 3161 anchor that proves the reading existed before you asked. Also a hash …

paid API verification x402
$5.04 · 30d 7 tx
CSE Intelligence Suite strategic-divergence-engine.johntaylor1online.workers.dev
q 65

18 analysis-grade x402 APIs (39 endpoints) with 4-turn recursive dual-pole synthesis. By Chisolm Software Engineering.

paid API ai x402
$34.14 · 30d 267 tx
EventEdge Oracle edge.arakelproof.space
q 65

Machine-readable Polymarket and Kalshi market context for AI agents over x402 on Base. Recurring market context, topic context, and richer decision context. Read-only data and decision support; no trade execution.

paid API data x402
$0.05 · 30d 11 tx
askzephy Solana/Anchor Static Security Scan audit.askzephy.com
q 65

Deterministic pattern scan of Solana/Anchor Rust repos: missing signer/owner checks, account confusion, PDA seed mismatches, unsafe CPI, unchecked arithmetic - findings with file:line, evidence snippet and suggested fix. No LLM. Also offers…

paid API other x402
$0.05 · 30d 1 tx
Yog x402 Service api.gosyog.lol
q 65

Paid LLM-as-a-service API on Base USDC. Five deterministic-first tasks: json_repair (fix malformed JSON, $0.02), extract_fields (pull named fields from text without fabricating, $0.03), classify_text (label text against your own categories,…

paid API ai x402
$0.12 · 30d 1 tx
Base USDC Whales digital-myto.onrender.com
q 65

Latest Base USDC whale transfers from $10,000+ for AI agents and trading bots.

paid API blockchain x402
$0.22 · 30d 30 tx
Axiom Relay deterministic agent tools axiomrelay.io
q 65

Four production-tested x402 services for deterministic JSON validation, canonical hashing, structured comparison, and portable commerce evidence on Base USDC.

paid API verification x402
$0.36 · 30d 6 tx
DreamWidget dreamwidget.com
q 65

Embeddable Logo Showcase and Video Showcase widgets for any website (YouTube, Vimeo, Twitch and TikTok), unlimited views, one snippet. An agent buys a plan term with x402 (USDC on Base or Solana, XRP, HBAR) at the card price: POST /api/v1/p…

paid API content x402
$12.92 · 30d 2 tx
Render402 api.render402.xyz
q 65

AI video generation API for MiniMax H3 text-to-video, image-to-video, first-and-last-frame, and lip-sync workflows, paid per request in USDC over x402 v2 on Base.

paid API ai x402
$2.64 · 30d 27 tx
Nodavyr nodavyr.com
q 65

Machine-payable SEC filing intelligence for AI agents. Nodavyr converts SEC filings and company facts into structured intelligence that autonomous agents can purchase on demand using x402 and USDC on Base.

paid API finance x402
$5.40 · 30d 5 tx
HCAD Harris County Property-Tax API hcad-api.canvas-cart.workers.dev
q 65

Assessment-protest outcomes (value before vs. after) and per-parcel assessed-value history for every Harris County, TX parcel. Free address search; paid per-parcel routes $0.02-$0.05 via x402 on Base. No owner names.

paid API data x402
$0.07 · 30d 7 tx
Enclave402 enclave402.com
q 65

Signed verification and attestation for the x402 economy. Enclave402 probes and scores x402 endpoints (9,000+ resources in a running census) and issues EIP-712 signed, timestamped attestations and delivery receipts. Settlement is receipt-ga…

paid API verification x402
$4.03 · 30d 55 tx
beyourspace structured-data APIs for agents api.beyourspace.es
q 65

Pay-per-call catalog of 16 POST endpoints for agents: extract structured JSON from text (job offers, product sheets, changelogs), read a public page as clean Markdown, normalize CSV exports into JSON (requirements, experiment backlogs, onbo…

paid API data x402
$0.15 · 30d 14 tx
x402.eleeth.com x402.eleeth.com
q 65

Pay-per-call x402 v2 API store on Base mainnet (USDC): 34 endpoints including web search, page reader, AI chat, AI image/video generation, text-to-speech, podcast generation, and crypto/weather/stock/fx/news/dns/wayback/rss/summarize/whois/…

paid API ai x402
$0.01 · 30d 1 tx
Waveline wearewaveline.com
q 65

AI-written artist insights for AI agents, 0.005 USDC per insight on Base. Unknown artist returns 404 and is never charged. Free preview at /api/insight/preview.

paid API data x402
$0.01 · 30d 2 tx
Verifi: Human judgment for AI agents verifi.cloud
q 65

Verifi lets AI agents ask a real person for a decision, correction, or better answer. Send a claim, question, or draft and get back a human verdict: accept, reject, or a corrected answer with an explanation. 0.10 EUR to ask, then 2.90 EUR f…

paid API verification x402
$3.64 · 30d 4 tx
Vishwa api.vishwalab.com
q 65

Prediction market API for agents covering Kalshi and Polymarket events: browse events, markets, order books and trades, and create orders and manage positions, paid per call in USDC on Solana or Base.

paid API finance x402
$0.08 · 30d 10 tx
TopAgent x402 topagentx402.vercel.app
q 65

Pay-per-call gateway fee endpoints labelled for token sends and report requests. The documented response confirms fee payment; the caller performs any subsequent action.

paid API blockchain x402
$0.11 · 30d 14 tx