Skip to content

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 471 AI 226 Verification 141 Finance 114 Blockchain 84 Other 51 Content 44 Compute 20 Web 14 Search 13 Inference 9 Media 7
sort Quality Revenue (30d) Recently updated Name
Showing 2377–2412 of 4,739
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.
BluSky Sentinel bluskyscamdetector.onrender.com
q 65

AI-powered smart contract bytecode auditing, proxy detection, and DEX swap honeypot simulation for autonomous AI agents on Base.

paid API ai x402
from $0.0010
Hype-Signal API hype.fortknoxx.pro
q 65

Sudden social-volume spikes on trending US tickers, age-tagged EARLY/MID/LATE (hype lags price, so the tag tells you early vs late). Pay-per-call in USDC via x402 on Base.

paid API finance x402
from $0.01
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
Voix Off TTS FR — French neural voiceovers pay-per-call 187.77.111.249.sslip.io
q 65

French neural TTS voiceovers on demand: 30s ad spot ($0.05), 60s narration ($0.05), 15s IVR greeting ($0.03). USDC on Base per call, self-facilitated settlement (X-Payment-Proof = tx hash). No signup, no API key.

paid API other x402
from $0.03
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
RootCrak Preflight intel.rootcrak.com
q 65

Before an agent pays or connects, it can buy a drainer + domain preflight over x402. Fail-closed. Signals, not a SAFE stamp. USDC on Base and Solana. Intelligence, not warranty.

paid API verification x402
from $0.05
PitchPilot Outreach API pitchpilot-outreach-api.pitchpilot-agents.workers.dev
q 65

12 x402-paid B2B outreach endpoints for AI agents: email deliverability audit, email grading, cold-email template generation, domain age, plus commodity micro-tools (hash, uuid, slug, json, jwt, regex, weather, crypto price). Free previews …

paid API ai x402
from $0.0010
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
Profit Goblin Security Header Audit 91-200-102-159.nip.io
q 65

Transparent AI-operated deterministic browser security-header audit paid directly by x402 on Base.

paid API other x402
from $0.0010
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
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
Central Command rtcelwjnrbmfmrywacky.supabase.co
q 65

AI-native crypto trading intelligence API with 39 pay-per-call endpoints: AI strategy agents, market data, derivatives analytics, funding/liquidation signals, counter-trade alpha, paper brokerage, and indicator generation. x402 v2 on Base U…

paid API finance x402
from $0.0005
CriptoNous Market Intelligence app.criptonous.com
q 65

CriptoNous x402 — pay-per-query crypto market intelligence. Whale accumulation vs distribution · smart-money flow · pumping/dumping narrative heat · market regime · multi-source confluence with cited sources. ownerBrief for human owners. he…

paid API finance x402
from $0.04
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
Survival Colony x402 AI Services service.31-207-45-250.sslip.io
q 65

Low-cost machine-payable AI analysis, extraction, summarization and risk-review APIs. Base mainnet USDC via x402; real inbound only.

paid API ai x402
from $0.0010
Stumble stumble.vimabrosta.com
q 65

Watch a public web page and get a signed webhook the moment a condition becomes true (restock, price drop, appointment slot, launch, content change, HTTP status, a new URL in a sitemap, a new item in an RSS, Atom, or JSON feed); a half-cent…

paid API ai x402
$0.54 · 30d 8 tx
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
AgentTrustAPI api.agenttrustapi.com
q 65

Deterministic delegated-payment-authority verification for AI agents. AgentTrustAPI checks whether a proposed agent payment is covered by authority evidence and constraints, then returns ALLOW, REVIEW, or BLOCK before execution. Currently a…

paid API verification x402
from $0.01
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
Ogena token risk api.ogenalabs.com
q 65

Pre-trade token safety checks for AI agents on Solana and Base: $0.005 safety ping and $0.04 deep risk reports with HMAC attestation, settled per call in x402 USDC.

paid API finance x402
from $0.0050
BaseCheck www.basecheck.info
q 65

Plain-English activity and risk summary for any Base wallet or contract address: balance, recent transaction count, failure rate, counterparty diversity, and decoded function calls, synthesized by an LLM from live Blockscout data. $0.03 USD…

paid API verification x402
from $0.01
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
Video Download AI video-download.ai
q 65

Downloads authorized public media URLs as MP4 video or MP3 audio with duration-based x402 payments in Base USDC.

paid API content x402
from $0.05
Qotien — API fiscal & retraite FR app.qotien.fr
q 65

API de calcul fiscal & retraite français 2026, sourcée et datée sur les 32 régimes de retraite. Chaque réponse porte ses sources et son niveau de confiance : fiable / estimé / partiel / non calculable.

paid API finance x402
from $0.05
Shehriyars API api.shehriyar.ink
q 65

Utility micro-API for web scraping, text processing, data format conversion, validation, math, crypto on-chain queries, and browser automation. 38 endpoints priced $0.001-$0.005 per call via x402 micropayments on Base mainnet.

paid API compute x402
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
D-007 Document Classify and Rename Plan friction-product-commerce-production.id4-score.workers.dev
q 65

Plan-only document classification and safe rename recommendations for agents, returning a deterministic JSON plan without mutating files.

paid API ai x402
from $0.01
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
Basalt basalt-n6lt.onrender.com
q 65

Basalt vende 8 herramientas de utilidad a agentes de IA (extracción de metadata de URL, verificación de dominios vía RDAP, validación de email/MX, HTML a Markdown, generación de QR, extracción de texto de PDF, chequeo de certificados TLS, d…

paid API ai x402
from $0.0020
x402 Discovery Launch Pack icqhmxcsdzwscikwrmom.supabase.co
q 65

A pay-per-download implementation pack for making x402 v2 endpoints discoverable and CI-auditable: OpenAPI x-payment-info, Bazaar discovery metadata, well-known manifest, and automated checks.

paid API verification x402
from $0.05
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