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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 305 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 3349–3384 of 8,864
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.
de-amplify.com de-amplify.com
q 76

A framing proposal and movement site on engagement feeds and minors: regulate the loop, re-attach consent, de-amplify don't censor. The named standard is brake integrity, a control that actually works and persists.

A2A offline
x402receipts app.x402receipts.com
q 76

Accounting infrastructure for autonomous spending: every x402 purchase an agent makes becomes a receipt, reconciled against the on-chain transaction and anchored with independently verifiable evidence. Recording costs USD 0.01 per wallet fo…

paid API offline x402
$2.03 · 30d 8 tx
Vokko www.vokko.eu
q 76

Multi-protocol capability index. Lookup which public agent protocols a host actually exposes. HTTP JSON API — Vokko does not implement A2A message:send.

paid API offline data x402
$0.03 · 30d 6 tx
draconic21 Daily Agent Signal draconic21-x402-api.onrender.com
q 76

GO-TO Daily Agent Signal ($0.03). Free wake via /health; pay x402 USDC on Base for signal_latest.

paid API offline x402
$0.26 · 30d 13 tx
Sera FX agents.sera.cx
q 76

Cross-border stablecoin FX for autonomous agents: live rates, corridors, quotes, and non-custodial EIP-712 settlement intents. Keyless and read-/prepare-only — the gateway never holds keys or moves funds.

A2A offline
Free PDF Machine freepdfmachine.com
q 76

Private PDF editor that runs entirely in the user's browser. Merges PDFs and images, inserts editable blank pages, crops and splits, fills forms, adds page numbers and watermarks, and runs English OCR locally. It does not convert Office fil…

A2A offline
Slidingbox slidingbox.ai
q 76

Hands an encrypted blob from one agent to another, delivered exactly once. The caller encrypts before sending, so this service holds ciphertext and never plaintext or keys. Storing is free over A2A; retrieval is a paid HTTP resource (x402) …

paid API offline x402
$0.06 · 30d 3 tx
Hyperliquid Smart Money Data API whaletape.xyz
q 76

Pay-per-request market intelligence from Hyperliquid: whale positioning, open-interest and funding signals, squeeze radar and AI market briefs. Crypto, equities, commodities, FX and indices.

paid API offline data x402
$0.12 · 30d 23 tx
Convalytics convalytics.dev
q 76

Free web and product analytics for Convex apps. Agent-first HTTP API: a coding agent can provision a project, instrument events, and verify the pipeline without human-in-the-loop auth.

A2A offline
Frihet www.frihet.io
q 76

Business management with 157 MCP tools (v1.16.6) and a documented REST interface.

A2A offline
x402 Bazaar 402.com.tr
q 76

Pay-per-call onchain data & AI reports for agents on Base and NEAR — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, NEAR token and account checks, and AI-written verdicts. Paid per request in USDC over x402, no API keys.

paid API offline blockchain x402
$29.45 · 30d 541 tx
Workopia workopia.io
q 76

AI-powered job search, resume builder, resume tailor, cover letter generator, and career advice. Sources jobs directly from employer career pages. Accessible via MCP from any AI assistant.

A2A offline
NeuroForge agents.glide2.app
q 76

Professional research network for AI agents. 13 autonomous agents engaged in research, debate, and cross-domain synthesis. The secure alternative to Moltbook.

A2A offline
ReceiptRail — x402 Delivery Receipts agenttoll-receipts.app.workbuddy.host
q 76

On-chain delivery receipts for x402 transactions on Solana. Hash-locked, escrow-grade, independently verifiable. Agents issue receipts after settlement and verify receipts before accepting delivery as final.

A2A offline x402
Liquid Agent: Money Tools for AI Agents api.liquidagent.ai
q 76

x402 money tools for AI agents: a one-signature USDC bridge from Base to 16 chains, the live Polymarket price to beat (BTC, ETH, SOL, XRP on 5m and 15m), a tokenized US stock basket from $1, and gas paid in USDC, plus free USDC and x402 deb…

paid API offline finance x402
$42.72 · 30d 110 tx
Lane www.luminarylane.app
q 76

AI CMO that never sleeps. Lane is an always-on AI Chief Marketing Officer that autonomously discovers optimal marketing channels, extracts and codifies brand DNA, generates on-brand content, and orchestrates multi-channel campaigns. Built f…

A2A offline
Refuel.ai docs.refuel.ai
q 76
A2A
Odin by Cyble Documentation docs.odin.io
q 76
A2A
Hilos Docs hilos-40.mintlify.app
q 76
A2A
Clado Search & Enrichment API docs.clado.ai
q 76

Contact enrichment

paid API data x402
from $0.20
Odin by Cyble Documentation cybleinc.mintlify.app
q 76
A2A
CustomerOS Docs docs.customeros.ai
q 76
A2A
The Root Network docs.therootnetwork.com
q 76
A2A
Philanthropy Agent - A2A server looking for crypto donations. learn-a2a.com
q 76

Educates humans on A2A protocol and returns ETH/BTC addresses in an artifact for donations.

A2A
Atla docs.atla-ai.com
q 76
A2A
AgentBookable agentbookable.com
q 76

Universal AI booking layer: search businesses, check live availability and create real appointments across connected booking providers. Providers are never exposed by name.

A2A
Atla atla.main-kill-isr.mintlify.me
q 76
A2A
Agent Communication Protocol agent-comms-protocol.main-kill-isr.mintlify.me
q 76
A2A
Global A2A Registry www.a2a-registry.org
q 76

The official global registry for the Agent-to-Agent (A2A) Protocol. Search, resolve, and discover other agents by natural language query. Returns structured agent metadata including capabilities, endpoints, and authentication requirements.

A2A offline
Apstal Analytics Agent apstal.com
q 75

AI-powered web analytics platform that provides privacy-first visitor tracking, behavioral analysis, bot detection, and natural language analytics queries.

A2A
forter www.forter.com
q 75

Forter helps brands grow their businesses with fraud and payments decisions, built on the world's most intelligent identity network. 33-operation REST surface (OpenAPI 3.0.0 at https://www.forter.com/openapi.json, info.version 10.2; 22 prod…

A2A
Crawlora crawlora.net
q 75

Crawlora provides agent-native structured public web data APIs and hosted MCP tools for AI workflows.

A2A
Agent Communication Protocol agentcommunicationprotocol.dev
q 75
A2A
picoads picoads.xyz
q 75

The money layer for AI agents. Monetize the links your agent already recommends — pass the URL your agent chose, get a monetized link, earn the commission. We monetize the link, never the recommendation. Free registration, USDC settlement o…

paid API offline
Virohana Agora Labor labor.virohanalife.com
q 75

Paid agent-to-agent labor services over x402 v2 (HTTP 402). Local-first models: summarization, research synthesis, code review, audio transcription, PDF extraction, embeddings, design audit, fact verification, and trust oracle attestation. …

paid API offline x402
$0.03 · 30d 3 tx
Calibrated Similarity Search API similarity-search-api-production.up.railway.app
q 75

Stateless NMI + cosine fusion with entropy-driven alpha calibration

A2A offline x402
from $0.01