# Cybercentry Private Data Verification (CPDV)

> Cybercentry Private Data Verification (CPDV) is a paid API for AI agents from x402-cybercentry-private-data-verification.up.railway.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Submits text data for Zero-Knowledge Proof (ZKP) verification and returns a proof_id and proof URL for cryptographic verification

## Facts

- Endpoint: POST https://x402-cybercentry-private-data-verification.up.railway.app/verify
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cybercentry-private-data-verification-cpdv-2ef2358e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PmFvkX2bM_fi_8CZXaz-y

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cybercentry-private-data-verification-cpdv-2ef2358e -d '<json body>'
```

Example prompt: I need to verify this text data privately using Cybercentry's ZKP system — can you submit 'John Smith DOB 1990-01-15 SSN 123-45-6789' for CPDV verification and get me back the proof_id and proof URL?

## When to prefer this

Use this endpoint when you need to generate a Zero-Knowledge Proof for arbitrary text data to prove data possession or integrity without revealing the underlying content. Prefer this over traditional hashing or signature schemes when cryptographic non-disclosure (ZKP) is required and a verifiable proof_id/proof_url is needed for downstream verification workflows.

## Known failure modes

- Missing or empty `data` field returns a 400 validation error
- Payment not included or insufficient USDC (requires $0.02) results in 402 Payment Required
- Malformed request body returns a 422 Unprocessable Entity
- Backend ZKP generation failure may return a 500 Internal Server Error
- Network timeout if proof generation takes too long

## How this service works

Verify any text data using the Cybercentry Private Data Verification (CPDV) API. Returns a proof_id for Zero-Knowledge Proof (ZKP) verification via the proxy endpoint

## Output

Returns a JSON object containing a `proof_id` (unique identifier for the zero-knowledge proof) and a `proof_url` (URL to access or share the cryptographic proof for further verification via the proxy endpoint).

## Example request

```json
{
 "data": "The quick brown fox jumps over the lazy dog"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "data"
 ],
 "properties": {
  "data": {
   "type": "string",
   "description": "Any text data to verify"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "proof_id": {
   "type": "string"
  },
  "proof_url": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cybercentry-private-data-verification-cpdv-2ef2358e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-cybercentry-private-data-verification.up.railway.app](https://www.zero.xyz/host/x402-cybercentry-private-data-verification.up.railway.app/llms.txt)