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 547 AI 304 Verification 253 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 6409–6444 of 8,845
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.
Coockies-Ai coockies-ai.vercel.app
q 50

Pro Social API

paid API x402
$10.56 · 30d 17 tx
X402-Agent x402-agent.scope-research-api.workers.dev
q 50

Text Embeddings

paid API x402
$1.41 · 30d 45 tx
V402Pay v402pay.onvoyage.ai
q 50

Great Search

paid API x402
from $0.01
X-Research-X402-N3Ak8 x-research-x402-n3ak8.ondigitalocean.app
q 50

Read a single stripped tweet object.

paid API x402
$10.51 · 30d 47 tx
X-Research x-research.suzi.trade
q 50

Read a single stripped tweet object.

paid API x402
$10.51 · 30d 47 tx
Job-Bus job-bus.3dforge-qk.workers.dev
q 50

Parse RSS/Atom/JSON Feed to JSON items

paid API x402
from $0.01
Api api.walletforge.app
q 50

WalletForge Base USDC transfers address

paid API x402
$8.75 · 30d 33 tx
Santyvv-X402 santyvv-x402.santyvv1993.workers.dev
q 50

Current TVL of one protocol

paid API x402
$2.62 · 30d 145 tx
X402-Api-Nine x402-api-nine.vercel.app
q 50

CSV Reconciliation Service

paid API x402
$10.04 · 30d 8 tx
3C18B2D704B6940881478Ee13Baabb5A-Dev 3c18b2d704b6940881478ee13baabb5a-dev.ctonew.app
q 50

email verification

paid API x402
$0.02 · 30d 2 tx
Darv0Bb44Fo2It41Ni60Sbjrjganwptoj darv0bb44fo2it41ni60sbjrjganwptoj.oast.live
q 50

probe

paid API x402
V0-X402-Enabled-Endpoint-Ochre v0-x402-enabled-endpoint-ochre.vercel.app
q 50

AI-generated market insight (one-shot).

paid API x402
$0.22 · 30d 22 tx
X402 x402.strikerobot.ai
q 50

Download MJCF XML scene

paid API x402
from $0.02
Astro astro.dutchdata.io
q 50

Location data

paid API x402
$0.50 · 30d 1 tx
Nexus-Reader-4Um6 nexus-reader-4um6.onrender.com
q 50

Readable text from a public webpage

paid API x402
from $0.01
X402 x402.cambrian.org
q 50

All Tokens

paid API x402
$1.20 · 30d 24 tx
Api api.chipscan.xyz
q 50

chipscan fast token security audit

paid API x402
from $0.01
Api api.shoal.xyz
q 50

Top signal events ranked by score

paid API x402
from $0.05
Api api.agnichub.xyz
q 50

Pay with base

paid API x402
from $0.0030
Abi-Mainnet-Sandbox abi-mainnet-sandbox.benjaminbu.workers.dev
q 50

Japanese gotobi calendar

paid API x402
$0.01 · 30d 1 tx
Api api.milypay.xyz
q 50

BSB lookup 012-002

paid API x402
from $0.0020
X402 x402.valintix.com
q 50

BlorpAg: $0.01 per request

paid API x402
$28.29 · 30d 324 tx
Signal-Engine-Production-D88D signal-engine-production-d88d.up.railway.app
q 50

Individual arena strategy signal

paid API x402
$0.08 · 30d 84 tx
Gateway gateway.grapevine.fyi
q 50

0.05 USDC on base

paid API x402
$0.08 · 30d 4 tx
Api api.arcgate.dev
q 50

Swap quote

paid API x402
$2.38 · 30d 161 tx
Deepgram deepgram.x402.paywithlocus.com
q 50

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
Elevenlabs elevenlabs.x402.paywithlocus.com
q 50

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
Stablecrypto stablecrypto.dev
q 50

List all chains with TVL

paid API x402
$0.17 · 30d 17 tx
Api api.nameintel.io
q 50

Social handle availability check

paid API x402
$0.25 · 30d 19 tx
Alchemy x402.alchemy.com
q 50

Alchemy Agentic Gateway — access Alchemy's blockchain developer platform (Node JSON-RPC, Token API, Transfers API, Simulation API, NFT API v3, Portfolio API, Prices API) without an API key, using wallet-based auth (SIWE for EVM, SIWS for So…

paid API infrastructure x402
The Graph thegraph.com
q 50

Indexing protocol for querying blockchain data with subgraphs

paid API data x402
EQVPS eqvps.com
q 48

No-KYC crypto VPS where an AI agent completes the ENTIRE purchase itself — register, pay in USDC/USDT, provision, get root — with no human, no card, no verification. The MCP server is LIVE (75 tools: 45 for customers + 30 for white-label re…

A2A
AiScale Agent Services agents.aiscale.pro
q 47

The marketplace where AI agents buy data, intelligence, and skills. Pay-per-request via x402 micropayments in USDC on Base L2. No API keys, no subscriptions, no accounts — just send a request and pay per call. Endpoints include real-time se…

paid API offline x402
from $0.0020
supremeai agents.supremeai.ca
q 46

Pay-per-call tools for AI agents: x402 pre-flight checks (is this endpoint safe to pay?), web pages as clean markdown (with optional JavaScript rendering), Latin American tax-ID validation, npm/PyPI/GitHub lookups, and URL health checks. No…

paid API offline x402
from $0.0020
AgentMail mpp.api.agentmail.to
q 44

Email inboxes for AI agents.

paid API ai mpp
$12.02 · 30d 3 tx
x402repo.vercel.app x402repo.vercel.app
q 44
paid API x402
from $0.0020