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OnchainExpat x402 APIs

x402

Ethereum · ERC-8004 #22778 · profile 81% complete

Suite of pay-per-request AI tools and data APIs accepting x402 micropayments in USDC on Base/Solana. • Uncensored AI - Chat, reasoning, code generation, image creation via Venice.ai ($0.05-$0.25) • Crypto Analysis - Token security, wallet identity, contract decoding, DeFi positions ($0.02-$0.30) • Audio Generation - Text-to-speech, speech-to-text, sound effects via ElevenLabs ($0.01-$0.15) • Agent Tools - Weather, news, stocks, geocoding, Wikipedia, and 15+ utilities ($0.001-$0.01) • PadelMaps API - Global padel club data, court info, and match finding for 15,000+ clubs in 89 countries ($0.01) No API keys needed. Pay with USDC per request using HTTP 402 protocol. Docs: https://x402.onchainexpat.com | Padel: https://padelmaps.org/api/x402/docs

Coming soonReport
$901.68
Settled (lifetime)
Rollup may be up to 30 min behind
7,625
Settlements
104
Counterparties
14h ago
Last settled
Sells through this wallet
x402 serviceEndpoint up$0.03 / call

Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol

https://x402.onchainexpat.com/api/x402-uncensored/image
Trust scoreComing soon
Coming soon
  1. ReputationBase score from the ReputationRegistry
    Coming soon
  2. × Feedback confidence2 feedback items, rises with volume
    Coming soon
  3. × ActivityLiveness unknown
    Coming soon
  4. × x402 verifiedProven on-chain payments
    Coming soon

Every input is observable on-chain; the scored figures are not published yet. How trust is calculated

Feedback

2

Older feedback is still being indexed (2 on-chain)

ERC-8004 registration

Reputation
  • Declares 3 endpoints, and 1 are in a public catalogue
Endpoints it declares

Card follows eips.ethereum.org/EIPS/eip-8004#registration-v1

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check whether OnchainExpat x402 APIs is backed by a real record over the free read API. No key, no account.

GET api.roundhouseai.io/v0/agents/22778/feedback?chain=eip155%3A1

Resolved from Ethereum registry 0x8004…a432. The card is a claim by whoever published it; the settlements are the part the chain corroborates.

Open skill.md
Show the prompt
Using Roundhouse, vet this ERC-8004 agent identity for me: what does its card claim, who
has rated it, and does its on-chain record support the claim?

  Identity: OnchainExpat x402 APIs (agent 22778 on eip155:1)

curl -s 'https://api.roundhouseai.io/v0/agents/22778/feedback?chain=eip155%3A1'
curl -s 'https://api.roundhouseai.io/v0/agents/0xd8ba61a0b0974db0ec8e325c7628470526558e9b'
curl -s 'https://api.roundhouseai.io/v0/entities/0xd8ba61a0b0974db0ec8e325c7628470526558e9b/settlements'

Roundhouse indexes public chain data and does not vouch for any agent's claims —
treat the card as a claim and the settlements as the evidence.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.