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RadhikaChain ZK Merkle Proof Endpoint
x402
RadhikaChain ZK Merkle Proof Endpoint is a paid API for AI agents from x402.radhikachain.xyz, paid per call via x402, $8.58/call, status unknown (last checked 2026-09-13).
Returns a Poseidon-hashed Merkle root with depth and asymmetry statistics for verifiable membership proofs using audited Orchard/Zcash constants, without revealing the leaf or path.
Price / call$8.58
Success—
StatusUnknown
How this service works
Telemetria de cadena, inteligencia de defensa y computo verificable (Halo2, Nova, Plonky3). Pago por peticion en USDC nativo en Base (eip155:8453) mediante x402 v2 scheme exact; sin cuenta ni suscripcion. Catalogo canonico: GET /.well-known/x402.
Output
Returns a JSON object containing: the Merkle tree depth (k=11 example), a success flag (ok), the Poseidon hash with audited Orchard/Zcash constants, an asymmetry score (e.g. 38), a privacy note confirming the leaf and path are not recorded or returned, and the tree depth (profundidad=4). Only the root is public; the witness is fully private.
Example use cases
Anonymous set membership attestation
“I need to prove that a wallet is in a whitelist without revealing which wallet it is — can you get me a Poseidon Merkle root with depth and asymmetry stats using RadhikaChain's ZK Merkle endpoint so I can build the proof?”
Audited ZK circuit parameter retrieval
“Pull the audited Poseidon Merkle tree parameters from RadhikaChain — specifically the tree depth, asymmetry score, and hash constants compatible with Zcash Orchard so I can configure my Halo2 circuit.”
Privacy-preserving inclusion proof for DeFi
“I'm building a DeFi compliance layer and need a ZK Merkle root that proves a user is in a permitted set without logging the leaf or path — fetch that from RadhikaChain's ZK Merkle service and give me the root hash and depth.”
Technical details
Endpoint
GEThttps://x402.radhikachain.xyz/zk/merkleWhen to prefer
Choose this endpoint when you need a privacy-preserving, audited Poseidon Merkle proof with Zcash Orchard-compatible constants (Halo2 circuit) and you require that the leaf and path remain fully private — only the root is returned. Prefer this over generic Merkle libraries when you need on-chain-compatible ZK proof parameters, pay-per-call pricing with no subscription, and a trustless setup via x402 on Base.
Side effects
- Payment not included or invalid USDC amount returns 402 Payment Required
- Malformed request parameters return 400 Bad Request
- Service temporarily unavailable returns 503
- x402 facilitator timeout causes payment verification delay
- Invalid Base network chain ID in payment header causes rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"k": 11,
"ok": true,
"hash": "Poseidon · constantes auditadas Orchard/Zcash",
"asimetria": 38,
"privacidad": "la hoja y el camino no se registran ni se devuelven; solo la raiz es publica",
"profundidad": 4
}
}Tags
x402
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