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Kallipolis Proof — Evidence Resolution API
x402
Kallipolis Proof — Evidence Resolution API is a paid API for AI agents from kallipolis-proof.handongzhen101.chatgpt.site, paid per call via x402, $19/call, status unknown (last checked 2026-09-15).
Purchases prepaid API access (credits/API key) for evidence resolution queries covering AI agents, domains, protocols, and Base blockchain accounts.
Price / call$19
Success—
StatusUnknown
How this service works
Evidence resolution API for AI agents, domains, protocols, and Base accounts. Pay per call with x402 or buy instant prepaid access.
Output
Returns a JSON object containing the purchased plan name (e.g. 'builder'), a generated API key prefixed with 'kp_', the header name to use for authentication ('x-api-key'), and the number of prepaid credits included (e.g. 100).
Example use cases
Bootstrap an AI agent's evidence credentials
“My AI agent needs to prove its identity on Base — can you purchase a Kallipolis Proof builder plan for me and give me the API key and credit balance so the agent can start making evidence resolution calls?”
Verify domain ownership for a protocol
“I'm building a protocol that needs to verify domain ownership for third-party sites — get me a Kallipolis Proof API key with the builder plan so I can start resolving domain evidence.”
Prepaid access for Base account verification
“I want to verify Base account evidence for a batch of wallets — can you buy me access to Kallipolis Proof's builder plan and return the API key and how many credits I have?”
Technical details
Endpoint
POSThttps://kallipolis-proof.handongzhen101.chatgpt.site/api/v1/purchaseWhen to prefer
Choose this endpoint when an agent or user needs to bootstrap access to Kallipolis Proof's evidence resolution capabilities by purchasing an API key with prepaid credits. Use this before making evidence resolution calls — it is the provisioning/payment step, not the resolution step itself. Prefer this over pay-per-call if you need sustained, high-volume access to evidence queries.
Side effects
- Payment failure if USDC balance is insufficient or x402 transaction is rejected
- Invalid plan type results in error response
- Duplicate purchase attempts may not be idempotent — could result in multiple charges
- Network/gateway errors may interrupt payment flow before key is issued
- Rate limiting if too many purchase requests are made in a short window
Output
Schema · Response
{
"type": "json",
"example": {
"plan": "builder",
"apiKey": "kp_...",
"header": "x-api-key",
"credits": 100
}
}Tags
x402
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