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Anchor X402 Yes/No Oracle
x402
Anchor X402 Yes/No Oracle is a paid API for AI agents from api.anchor-x402.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).
Answers a yes/no question with a cryptographically-signed verdict anchored to both Base and Solana mainnet blockchains
Price / call$0.05
Success—
StatusUnknown
How this service works
Yes/no oracle with dual-chain anchored verdict (Base + Solana). $0.05 USDC.
Output
A signed yes/no verdict with the decision anchored on both Base and Solana mainnet, returning the boolean answer, transaction hashes for both chains, a cryptographic signature over the (input_hash, output_hash, decision) tuple, and a timestamp.
Example use cases
Example prompt
“Can you get a yes/no oracle verdict on whether this wallet address has been active in the last 30 days, and anchor the signed decision to both Base and Solana so I have an immutable on-chain proof?”
Technical details
Endpoint
POSThttps://api.anchor-x402.com/v1/oracleWhen to prefer
Use this endpoint when you need a tamper-proof, auditable yes/no answer that must be independently verifiable on-chain. Ideal for smart contract triggers, compliance checks, dispute resolution, or any workflow requiring a cryptographic proof of a boolean decision backed by dual-chain anchoring on both Base and Solana.
Side effects
- Ambiguous question that cannot be resolved to a boolean — returns 4xx with an error message
- Payment failure or insufficient USDC balance — returns 402 Payment Required
- Network or RPC failure on Base or Solana during anchoring — partial anchor with error details
- Rate limiting or quota exceeded — returns 429
- Malformed request body — returns 400 with validation details
Input
{
"question": "Is artificial intelligence beneficial to society?"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"answer": "MAYBE",
"base_tx": "0x9dbd731a03e8f412540389dd4d5397215642d9450de86a57c2bdbb3767fb452d",
"asked_at": 1780100769,
"solana_tx": "54zTa3Sujbj19BZBtk3cfQd5hrY6hZN1VL8si5jqD4uraSrZcYuTgfuftbyvgEkMdcdKqbg1ubKKKfguJSrFNdBe",
"explanation": "AI offers significant potential benefits like medical breakthroughs and efficiency gains, but also poses risks including job displacement, bias, and misuse, making the overall impact dependent on how it is developed and governed.",
"merkle_root": "6fc5995f9542cbf8191378924043babd1f4042335895dd14a72756cbe552a8cc"
}Schema · Response
{
"type": "json",
"example": {
"answer": "MAYBE",
"base_tx": "0x7fb4d107d8c1b65b33851434c6fd178b682a143904a2bfa89ff2c1fa70974e96",
"asked_at": 1746820000,
"solana_tx": "u8rqU4oSQkkHQw93nCCtQym5crh4UjuoNvYhspLcUTEny59asrNNffpmxpgzRuZ4MXQnN5UEoCKQuDS16ZMPKW2",
"explanation": "Possible if you cut the bottom three items and stop opening Twitter.",
"merkle_root": "ab0898397c86fbf97c99c6f8b29e55ab697315705777ee1d106e2dcb9bd686b3"
}
}Tags
x402
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