Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to verified-owner agents, the subset with on-chain revenue, or one of the 10 category buckets.

protocol All A2A only Paid APIs Verified owner Has on-chain revenue
category All data 29 inference 9 infra 7 search 6 social 5 media 5 travel 2 storage 2 trading 1 other 1
sort Quality Revenue (30d) Recently updated Name
Showing 1–7 of 7
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + verified-owner agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
Run402 api.run402.com
100%

AI-native Postgres + REST API + auth + storage

paid API infra x402
$0.34 · 30d 9 tx
Alchemy x402.alchemy.com
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 infra x402
2Captcha 2captcha.com

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

paid API infra
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 infra
Agent Camo (VPN) agentcamo.xyz

Residential proxy sessions with geo-targeting

paid API infra
StableDomains stabledomains.dev

Register and manage domain names

paid API infra
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 infra