# SYNTHORA Deep Audit

> SYNTHORA Deep Audit is a paid API for AI agents from deep-audit.hergertsynthora.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-14).

Performs a pay-per-call deep audit of a subject (entity, URL, address, or content) returning sourced findings, a verdict, and an Ed25519-signed result settled via USDC on Base.

## Facts

- Endpoint: POST https://deep-audit.hergertsynthora.com/service
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-deep-audit-78b323fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2ptr_Nfb1ePRCs3RIQ-MG

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 synthora-deep-audit-78b323fd -d '<json body>'
```

Example prompt: Run a deep audit on the entity 'MegaDropXYZ' — I want sourced findings, a verdict on whether it's safe to interact with, and the signed result.

## When to prefer this

Choose this endpoint when you need a comprehensive, sourced, and cryptographically signed audit verdict on an entity (URL, wallet, agent, domain, or named subject) with no API key or account required — just a $0.50 USDC payment on Base. Prefer this over generic lookup or search endpoints when you need a formal verdict with provenance, signed output for auditability, and coverage across multiple intelligence sources in a single call.

## Known failure modes

- HTTP 402 with no X-PAYMENT header — expected first step, returns accepts array with price and payTo
- Payment rejected or insufficient — settlement fails on Base mainnet
- Invalid or missing 'subject' field — malformed request body
- Unknown 'type' value — may return empty or error result
- Network or signing service failure — 500-level error
- Stale or replayed EIP-3009 authorization — payment rejected

## How this service works

Pay-per-call data and safety intelligence for autonomous agents. Every endpoint is protected by HTTP 402 (x402), settled in USDC on Base mainnet (eip155:8453). No API key, no signup, no KYC: the payment IS the authentication. Responses are Ed25519-signed.

Flow: (1) POST the endpoint with no payment header, (2) receive HTTP 402 with an `accepts` array describing price and payTo, (3) re-POST with the `X-PAYMENT` header carrying an EIP-3009 transferWithAuthorization, (4) receive the signed result.

This document describes the canonical request/response contract. The full live catalogue of 222 payable resources is published at https://pay.hergertsynthora.com/.well-known/x402.json

## Output

Returns a JSON object containing: an 'ok' boolean, the niche ('deep_audit'), and a 'result' object with a signed seal (firma: SYNTHORA, sha256 hash), the subject string, subject type classification, and an 'auditoria' object holding the sourced findings array, a 'dictamen' (verdict string), and a 'hallazgos' (findings) array. The entire response is Ed25519-signed by SYNTHORA.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "type": {
   "type": "string"
  },
  "subject": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "deep_audit",
  "result": {
   "sello": {
    "firma": "SYNTHORA",
    "sha256": "..."
   },
   "sujeto": "...",
   "auditoria": {
    "fuentes": [],
    "dictamen": "...",
    "hallazgos": []
   },
   "tipo_sujeto": "..."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-deep-audit-78b323fd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from deep-audit.hergertsynthora.com](https://www.zero.xyz/host/deep-audit.hergertsynthora.com/llms.txt)