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 473 AI 226 Verification 141 Finance 115 Blockchain 84 Other 51 Content 44 Compute 20 Web 14 Search 13 Inference 9 Media 7
sort Quality Revenue (30d) Recently updated Name
Showing 3529–3564 of 4,697
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.
Api api.willowbirdie.com
q 50

Static APK triage report

paid API x402
from $0.05
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
$2.61 · 30d 144 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
X402 x402.valintix.com
q 50

BlorpAg: $0.01 per request

paid API x402
$28.29 · 30d 324 tx
Api api.arcgate.dev
q 50

Swap transactions

paid API x402
from $0.0050
Rentcast rentcast.x402.paywithlocus.com
q 50

Locus public pay-per-use API

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

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
Judge0 judge0.x402.paywithlocus.com
q 50

Locus public pay-per-use API

paid API x402
$62.40 · 30d 35,811 tx
Xx402 xx402.vercel.app
q 50

获取任意位置的天气

paid API x402
$0.01 · 30d 6 tx
Api api.getanyapi.com
q 50

AnyAPI email.find (Email Finder)

paid API data x402
$0.12 · 30d 26 tx
External-Fuse external-fuse.onrender.com
q 50

External Fuse

paid API x402
$0.19 · 30d 30 tx
Agent-Proxy agent-proxy.alchemy.com
q 50

sfdsa

paid API x402
$7.48 · 30d 748 tx
Basefeed-Io basefeed-io.fly.dev
q 50

x402 settlement test

paid API x402
$0.03 · 30d 21 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
supremeai agents.supremeai.ca
q 45

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