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Anchor Hash to Base + Solana Mainnet
x402
Anchor Hash to Base + Solana Mainnet is a paid API for AI agents from api.anchor-x402.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Anchors a 32-byte hash to both Base and Solana mainnet blockchains, creating a verifiable dual-chain timestamp proof for $0.005 USDC.
Price / call$0.005
Success—
StatusUnknown
How this service works
Anchor a 32-byte hash to Base + Solana mainnet — $0.005 USDC
Output
Returns transaction IDs or receipts confirming the hash was anchored on both Base mainnet and Solana mainnet, providing a verifiable dual-chain timestamp proof of existence for the submitted 32-byte hash.
Example use cases
Example prompt
“Anchor this 32-byte hash to the blockchain — a3f1c9d2b8e047a6f5c2d9b4e8a1f3c7d6b2e5a9f1c4d7b0e3a6f9c2d5b8e1a4 — so I have a dual-chain proof of existence on both Base and Solana mainnet.”
Technical details
Endpoint
POSThttps://api.anchor-x402.com/v1/anchorWhen to prefer
Use this endpoint when you need a cheap ($0.005 USDC), fast, dual-chain notarization of any 32-byte hash on both Base and Solana mainnet simultaneously. Ideal for proving document existence, content integrity checks, audit trails, and any scenario requiring immutable on-chain timestamps across two chains.
Side effects
- Invalid hash format — hash must be exactly 32 bytes (64 hex characters)
- Payment failure — insufficient USDC balance or x402 payment not accepted
- Blockchain congestion causing delayed confirmation
- Hash already anchored — may return existing anchor or create duplicate
- Network error on one chain — partial anchor with only one chain confirmed
Input
{
"input": {
"body": {
"hash": "a3f1c9d2b8e047a6f5c2d9b4e8a1f3c7d6b2e5a9f1c4d7b0e3a6f9c2d5b8e1a4",
"note": "QA test anchor for dual-chain timestamp proof"
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"base": {
"tx": "0x964c9bfc31fd40788f0c84e7d1f5e56eb76a91e9636115e21866e5af6eb08e8a",
"explorer_url": "https://basescan.org/tx/0x964c9bfc31fd40788f0c84e7d1f5e56eb76a91e9636115e21866e5af6eb08e8a"
},
"note": "QA test anchor for dual-chain timestamp proof",
"solana": {
"tx": "2W2ozUYrnDyp6pi391PDSvu7kvRGboRLHtk9KKRVDqGdePhUSrhPsVfN8Z7FdAFBhWYrNRARVU9XvoK3e6TpA7gA",
"explorer_url": "https://solscan.io/tx/2W2ozUYrnDyp6pi391PDSvu7kvRGboRLHtk9KKRVDqGdePhUSrhPsVfN8Z7FdAFBhWYrNRARVU9XvoK3e6TpA7gA"
},
"anchored_at": 1780528970,
"merkle_root": "a3f1c9d2b8e047a6f5c2d9b4e8a1f3c7d6b2e5a9f1c4d7b0e3a6f9c2d5b8e1a4"
}Schema · Response
{
"type": "json",
"example": {
"base": {
"tx": "0x7fb4d107d8c1b65b33851434c6fd178b682a143904a2bfa89ff2c1fa70974e96",
"explorer_url": "https://basescan.org/tx/0x7fb4d107d8c1b65b33851434c6fd178b682a143904a2bfa89ff2c1fa70974e96"
},
"solana": {
"tx": "u8rqU4oSQkkHQw93nCCtQym5crh4UjuoNvYhspLcUTEny59asrNNffpmxpgzRuZ4MXQnN5UEoCKQuDS16ZMPKW2",
"explorer_url": "https://solscan.io/tx/u8rqU4oSQkkHQw93nCCtQym5crh4UjuoNvYhspLcUTEny59asrNNffpmxpgzRuZ4MXQnN5UEoCKQuDS16ZMPKW2"
},
"anchored_at": 1746820000,
"merkle_root": "ab0898397c86fbf97c99c6f8b29e55ab697315705777ee1d106e2dcb9bd686b3"
}
}Tags
x402
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