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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 470 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 2449–2484 of 4,717
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.
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
Kilawatt Cloud www.kilawattcloud.dev
q 65

Multi-provider GPU orchestration platform. Routes AI/ML workloads across RunPod, Vast.ai, Lambda, and Hyperstack with automatic failover, per-second billing, and zero egress fees. Agents provision and pay for GPU compute via x402 in a singl…

paid API compute x402
from $0.38
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
from $1.00
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
ProofDesk Website QA Audit Kit resolved.sh
q 65

A complete original website QA kit delivered as a 42,942-byte Markdown download for 10 USDC on Base via x402. Includes 102 identified checks, a report template, severity rubric, a clearly fictional worked example, delivery checklist and sin…

paid API content x402
from $10.00
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
SAGG Gateway api.privatedeskai.com
q 65

Multi-provider LLM inference gateway with automatic failover - pay per request in USDC via x402, no API key or signup needed. OpenAI-compatible /v1/chat/completions.

paid API ai x402
from $0.0003
Romny Crypto Alerts api2.romny.dpdns.org
q 65

Machine-payable crypto USDT-M perpetual alert data: recent hits, factor library, and rule catalog. 0.10 USDC per request on Base via standard x402. Separate from Romny Polymarket Data (api.romny.dpdns.org).

paid API data x402
from $0.01
Shopify CSV Catalog QA by UNLAV 7days.unlavsofts.xyz
q 65

Checks Shopify product CSV files before import and returns deterministic duplicate-SKU, missing-value, malformed-variant, and import-risk findings with row-level evidence.

paid API verification x402
from $0.05
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
CN Evidence api.cnevidence.com
q 65

China supplier verification API and remote MCP. Basic: registration, operating abnormalities and administrative penalties, 0.032 USDC. Full: nine selected modules, 0.093 USDC. Base USDC via x402 v2. First page up to 10 records per list; not…

paid API data x402
from $0.03
Dorothy Witness - Verify Before Retry openclaw-ekra.srv1969142.hstgr.cloud
q 65

Independent read-only external-state verification before autonomous agents retry or claim completion. Returns CONFIRMED, DIVERGENT, or INCONCLUSIVE with evidence provenance and receipt hash.

paid API verification x402
from $0.0050
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
Orbuis agents.orbuis.com
q 65

Pay-per-call text tools for AI agents, answered by Orbuis's own on-device model: summarize text ($0.003), extract JSON that validates against your schema ($0.004) and answer questions with optional context ($0.002), plus a $0.001 payment ch…

paid API ai x402
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
SHSY Email Preflight someonehastosayyes.com
q 65

Deterministic email syntax, live MX/DNS evidence, disposable-domain list matching, role/free-provider flags and typo suggestions. One synchronous JSON response. No SMTP probe; mailbox existence and deliverability remain unknown.

paid API verification x402
from $0.0010
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
LaunchCheck Website Signals launchcheck-tn.oe-nonprofit.chatgpt.site
q 65

16 deterministic website checks for deployment QA: SEO, accessibility, security headers and HTML size. JSON evidence from one public HTML page. x402 v2 exact EIP-3009, 0.25 USDC on Base. No JavaScript execution or crawl.

paid API ai x402
from $0.01
PipeForge x402 Infrastructure Inspector x402.pipeforge.tech
q 65

Pay-per-request infrastructure inspection API for AI agents and automated clients. For $0.02 USDC on Algorand MainNet, it returns structured DNS, HTTP/S, TLS, redirect, latency, and security-header data for a public Internet host. No accoun…

paid API data x402
from $0.02
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
Hermie Agent Service hermie.e5enclave.com
q 65

Agent briefs, OSINT, and code deliverables. $0.01 USDC on Base via x402 v2 + Bazaar; facilitator xpay.sh.

paid API ai x402
from $0.01
MakeStack Schema text→JSON api.makestack.fun
q 65

Schema text→JSON agent API — unpaid POST returns HTTP 402 with x402 PAYMENT-REQUIRED; settle Base USDC.

paid API ai x402
from $0.01
IntelGeist api.intelgeist.ai
q 65

Company risk profiles and single-question slices compiled from public records (GLEIF, SEC EDGAR, OFAC/UK/EU sanctions lists, US state registries), with every field sourced and dated and graded confidence. Paid per call over x402 in USDC on …

paid API data x402
from $0.01
Agent Economy x402 Marketplace agent-economy-live.onrender.com
q 65

Autonomously created machine-facing x402 utilities. Triggering offer: Safe Integer JSON Canonicalizer. Validate and canonicalize raw JSON deterministically for APIs, webhooks, caches, signatures, and AI agents. Reject duplicate keys, floats…

paid API other x402
from $0.0010
Daily AI Digest updatesbyai.com
q 65

Daily digest of the AI agent economy: top Hacker News stories, trending GitHub AI repos, x402 marketplace stats. Free: 5 items via GET /api/digest. Full report (30 items): 0.05 USDC via GET /api/full.

paid API ai x402
from $0.50
200 200.surfacedplus.com
q 65

Reliability layer for x402 data providers. Routes each paid call to whichever provider is currently most reliable and scores them on delivery, not just payment.

paid API ai x402
from $0.0001
Shots for Bots shotsforbots.com
q 65

A catalog of 3,790 original photographs sold one file at a time over HTTP 402. GET /original?id=<12 hex id> answers 402 with an x402 v2 challenge (exact scheme, USDC on Base, eip155:8453, settled by a self-hosted facilitator); pay and the r…

paid API content x402
from $0.01
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
First Dollar Desk qron.space
q 65

Human $1 Stripe checkout and $0.05 Base USDC agent verify over HTTP 402. Self-pay is rejected.

paid API verification x402
from $0.05