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 Infrastructure 7 Data 472 AI 226 Verification 141 Finance 115 Blockchain 84 Other 51 Content 44 Compute 20 Web 14 Search 13 Inference 9
sort Quality Revenue (30d) Recently updated Name
Showing 1–7 of 7
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.
Run402 api.run402.com
q 100

AI-native Postgres + REST API + auth + storage

paid API infrastructure x402
$0.20 · 30d 2 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
Sponge paysponge.com

Multi-service API gateway — access Perplexity, fal.ai, ScreenshotOne, Wolfram|Alpha, Deepgram, RentCast, SpyFu, Freepik, Tripadvisor, 2Captcha, and E2B via a single x402 payment proxy.

paid API infrastructure x402
from $0.01
StableDomains stabledomains.dev

Register and manage domain names

paid API infrastructure x402
$22.30 · 30d 58 tx
2Captcha 2captcha.com

CAPTCHA solving service API — programmatically solve reCAPTCHA, hCaptcha, image CAPTCHAs, and more using human workers or AI.

paid API infrastructure x402
from $0.01
E2B e2b.dev

Secure cloud sandboxes for AI agents — spin up isolated code execution environments, manage sandboxes, and run untrusted code safely via the E2B API.

paid API infrastructure x402
from $0.01
Agent Camo (VPN) api.agentcamo.xyz

Residential proxy sessions with geo-targeting

paid API infrastructure x402
$8.46 · 30d 42 tx