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x402-gateway: verify_batch (Semaphore ZK Proof Batch Verifier)
x402
x402-gateway: verify_batch (Semaphore ZK Proof Batch Verifier) is a paid API for AI agents from x402.freeq.one, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Batch-verifies up to 10 Semaphore ZK proofs in a single pay-per-call request, returning per-proof results with total count and average verification duration.
Price / call$0.005
Success—
StatusUnknown
How this service works
x402-gateway tool: verify_batch — Batch verify up to 10 Semaphore proofs in a single request. Returns per-proof results with total count and average duration.
Output
Returns a structured JSON response containing per-proof verification results (pass/fail for each of up to 10 Semaphore Groth16 proofs), the total number of proofs processed, and the average duration taken to verify across all proofs in the batch.
Example use cases
Anonymous voting proof verification
“We ran an anonymous on-chain vote using Semaphore and collected 7 ZK proofs — can you batch verify all of them and tell me which are valid and which failed?”
Bulk credential check before airdrop
“Before we distribute the airdrop, I need to verify 10 Semaphore proofs from eligible users. Can you batch-verify them all and give me the pass/fail result for each?”
ZK proof audit for a dApp session
“Our dApp processed 5 Semaphore proofs during tonight's session — can you run a batch verification on all of them and show me the per-proof results plus the average time it took?”
Technical details
Endpoint
POSThttps://x402.freeq.one/tools/verify_batchWhen to prefer
Choose this endpoint when you need to verify multiple Semaphore ZK proofs efficiently in a single API call rather than making repeated single-proof requests. It is ideal for applications performing bulk identity checks, anonymous voting tallies, or airdrop eligibility verification where up to 10 proofs must be validated together with per-proof granularity and timing metrics. Prefer it over the single verify_semaphore endpoint when batch throughput and consolidated reporting matter.
Side effects
- More than 10 proofs submitted — batch limit exceeded
- Malformed or invalid Groth16 proof format — verification error per proof
- Missing required fields in proof objects — 400 bad request
- Payment failure via x402 protocol — 402 Payment Required
- Network timeout for large batches — partial or no results returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| items | array | Array of up to 10 Semaphore proof objects to verify |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {}
}
}Tags
x402
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