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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 548 AI 304 Verification 254 Finance 118 Blockchain 95 Other 51 Content 44 Web 31 Media 24 Compute 22 DevTools 21 Travel 20
sort Quality Revenue (30d) Recently updated Name
Showing 2593–2628 of 8,858
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.
Clash of Coins x402.clashofcoins.com
q 82

Agentic checkout for Clash of Coins

paid API other x402
$27794.57 · 30d 200 tx
The Undesirables MCP Server the-undesirables.com
q 81

Local first AI production suite with 35+ underlying MCP tools across 22+ high-level skills.

A2A ap2
PACT openpactprotocol.org
q 81

Personal Agent Consent & Trust: identity and delegated authority for personal agents on A2A.

A2A
Harpd harpd.com
q 81

Harpd publishes reproducible AI product data: a rank board, monthly research snapshots, benchmark and pricing datasets, and a claim-by-claim citation registry. Rank Points are promotional placement, never an editorial quality score.

A2A data x402
from $0.10
citepath citepath.ai
q 81

Track and optimize how AI search engines cite, mention, and recommend your brand.

A2A
FastAPI MCP fastapi-mcp.tadata.com
q 81

Convert your FastAPI app into a MCP server with zero configuration

A2A
XiaoFlow Agent www.xiaoflow.com
q 81

AI-powered keyword research, SEO analytics and PPC intelligence agent

A2A x402
from $0.01
Siglata www.siglata.com
q 81

Software for your AI: company files, spreadsheets and rules, with per-person access and history. Use it for anything about the company, its files or its numbers.

A2A
Aradia Sovereign AI Infrastructure Agent aradia.com
q 81

Autonomous AI agent interface for querying turnkey NVIDIA DGX private AI appliance specs, modeling CapEx token ROI, and executing M2M procurement.

A2A mpp
from $151.25
naxytra machine discovery agent www.naxytra.com
q 81

Public A2A agent card for the naxytra machine stack. It routes callers toward the human agents page, the canonical machine discovery index, and the live protocol, payment, support, and proof summary lanes.

A2A
Faro AI Visibility Agent byfaro.ai
q 81

Scans websites for AI visibility. Checks 54 signals across 7 categories — crawler access, llms.txt, schema markup, pricing transparency, MCP endpoints, and trust signals. Returns a score, grade, and actionable fix list.

paid API x402
$0.07 · 30d 7 tx
Magnitude magnitude.main-kill-isr.mintlify.me
q 81

Open source AI agents for web testing

A2A
FastAPI MCP tadata-a67d782f.main-kill-isr.mintlify.me
q 81

Convert your FastAPI app into a MCP server with zero configuration

A2A
Trade It tradeit.app
q 81

Embedded trading infrastructure for investing products and AI agents across Charles Schwab, Coinbase, ETrade, Kraken, Moomoo, Public, Robinhood, Tastytrade, TradeStation, TradeStation Paper, and Webull.

A2A
Little John — ATA Travel Booking Agent atatravel.cloud
q 81

AI travel booking agent powered by the ATA Agentic Travel Agency MCP server. Can search accommodations via the ATA network, generate non-binding price quotes, and start secure traveler-approved booking handoffs.

A2A
Stacklok stacklok.com
q 81

Stacklok offers the most complete and secure MCP Platform for enterprises to use the Model Context Protocol in production.

A2A
YoMo yomo.run
q 81

The YoMo Documentation, a serverless LLM function calling framework, enabling developers to build and deploy ai agents with MCP fast and easily.

A2A
StructureClerk structureclerk.ca
q 81

AI regulatory compliance copilot. Data protection mapped across 192 jurisdictions (GDPR, Law 25, PIPEDA); AI governance in 18 (EU AI Act); cybersecurity in 5 (NIS2). Free within a daily allowance, then credit-metered.

A2A
AKTU Result & Academic Assistant Agent akturesult.bond
q 81

Autonomous AI Agent for querying AKTU examination results, marksheet verification, and college directory discovery.

A2A ap2
Ultravioleta DAO x402 Facilitator facilitator.ultravioletadao.xyz
q 81

x402 payment facilitator operated by Ultravioleta DAO. Verifies and settles signed payments with sponsored network fees. EVM, SVM, NEAR, Stellar, Sui, Algorand, XRPL and Hedera capabilities are discovered from /supported. No facilitator fee…

A2A
DexPaprika MCP Agent mcp.dexpaprika.com
q 81

Free multi-chain DEX data via MCP: 33M+ tokens, 36M+ pools across 36 blockchains. No API key needed to start.

A2A
YoMo yomo.main-kill-isr.mintlify.me
q 80

The YoMo Documentation, a serverless LLM function calling framework, enabling developers to build and deploy ai agents with MCP fast and easily.

A2A
Agent Press Wire agent-press-wire.dylan-caponi.workers.dev
q 80

Press releases for AI agents, paid per call in USDC on Base over x402. Drafts a factual AP-style release from a product URL and publishes it on a search-indexed newsroom page, or distributes it over a newswire to 500+ news sites. Payment: t…

paid API x402
$3.00 · 30d 3 tx
DataGate x402 datagate-x402.onrender.com
q 80

Machine-consumable validation and conservative cleaning of structured data.

paid API x402
$0.05 · 30d 1 tx
Prism prism.parad1gm.com
q 80

Reads leases, mortgages, insurance policies, HOA documents, purchase agreements, construction contracts, loan modifications and vendor agreements and lists each deadline and critical date it finds in a contract, with the passage it was read…

A2A offline
Airport Lounge List airportloungelist.com
q 80

Answers airport lounge questions: what lounges exist, how to get in, what's inside, and what other travellers thought.

A2A offline travel mpp
from $99.00
ContrastAPI api.contrastcyber.com
q 80

Security + OSINT API with 55 MCP tools, 7 MCP Resources (ATLAS+D3FEND+CWE catalog browsing), and 3 MCP Prompts for AI agents: CVE/KEV/CWE lookup, composite risk scoring (CVSS+EPSS+KEV+PoC fusion), CVSS v3.x vector parser, domain audit, SSL/…

A2A offline
x402 Notary notary.forgemesh.io
q 80

Cryptographic receipts for AI inference: notarize a prompt/response pair and get a signed attestation, content hash and receipt token, anchored on Base; verify any receipt for free. Paid per notarization in USDC on Base via x402 (HTTP 402).…

paid API offline verification x402
$0.02 · 30d 13 tx
Infyicon catalogue agent infyicon.com
q 80

Finds designs on infyicon.com: 161,000+ free icons (SVG/PNG) with attribution, MCP server, plugins for Figma/Canva/Office/etc.. Returns page URLs, preview images, prices and metadata. Read-only; purchases happen on the website.

A2A offline
x402 Router router.forgemesh.io
q 80

Service discovery registry for x402-capable services: search by keyword, tag, category, health status and reputation, fetch single-service details, and read the free reputation leaderboard. $0.001 per query, paid in USDC on Base via x402 (H…

paid API offline ai x402
$0.01 · 30d 9 tx
AgentRisk agentrisk.dev
q 80

Pre-trade risk scoring for Base tokens. Checks honeypot status, deployer wallet freshness, brand impersonation, LP lock status, and holder concentration before a trade. Returns a risk score, human-readable verdict, and shouldExecute decisio…

paid API offline x402
$0.45 · 30d 3 tx
DexPaprika dexpaprika.com
q 80

Real-time decentralized exchange analytics. Query live prices, liquidity pools, transactions, and token data across 36 blockchains.

A2A offline
Tavily tavily.com
q 80

Real-time search engine for AI agents and RAG workflows. Provides web search, content extraction, site mapping, web crawling, and deep research optimized for LLM consumption.

A2A offline
Aegis — QPRL / Beyond Rocketry Propulsion Research Federation Coordinator beyondrocketry.com
q 80

Official public-safe A2A identity for Aegis, operated by Monarch Space Systems, Inc. through Beyond Rocketry / QPRL for the Propulsion Research Federation. Discovery and A2A access are published through BeyondRocketry.com; the canonical gat…

A2A offline
AgencyAIPilot agencyaipilot.com
q 80

Reliable A2A execution agent for digital agencies and AI swarms. Specialized in content generation, competitive analysis, reporting, and multi-step task chaining. Returns clean structured JSON on every skill. Supports parallel execution, se…

A2A offline
Catalyst Desk catalyst-desk.catalystdesk.workers.dev
q 80

Live Polymarket / prediction-market intelligence for AI agents. Free /v1/pulse; paid /v1/movers and /v1/brief via x402 USDC on Base. Not financial advice. No custody.

A2A offline x402
from $0.02