# SYNTHORA OSINT Deep Intelligence API

> SYNTHORA OSINT Deep Intelligence API is a paid API for AI agents from osint-deep.hergertsynthora.com, paid per call via x402, $0.99/call, status unknown (last checked 2026-09-14).

Returns a deep OSINT intelligence brief on a given topic covering a specified number of days, with Ed25519-signed results, paid per-call via x402 USDC on Base.

## Facts

- Endpoint: POST https://osint-deep.hergertsynthora.com/service
- Price: $0.99/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-osint-deep-intelligence-api-30ac16b1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p8KJbHyP-U5WSEue1PyYu

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-osint-deep-intelligence-api-30ac16b1 -d '<json body>'
```

Example prompt: Can you pull a deep OSINT intelligence brief on 'Tornado Cash' covering the last 14 days — I need the full sourced brief with source evaluations and a signed result?

## When to prefer this

Choose this endpoint when you need a cryptographically signed, source-evaluated deep OSINT intelligence brief on a specific topic over a defined time window, paid anonymously per-call with no API key or account required. Prefer it over generic search or news APIs when verifiability (Ed25519 signature + SHA256) and source credibility scoring are required for the output.

## Known failure modes

- HTTP 402 returned when no payment header is present — agent must re-submit with X-PAYMENT header carrying a valid EIP-3009 transferWithAuthorization
- Invalid or insufficient USDC payment results in rejection
- Malformed topic string may yield empty brief array
- days integer out of supported range may return an error or empty results
- Network timeout on Base mainnet settlement can delay or fail the call

## 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

A JSON object containing: a topic label (tema), intelligence tier ('deep'), a structured brief array, a titular summary string, a list of source evaluations, and a cryptographic seal with an Ed25519 firma (signature) from SYNTHORA and a SHA256 hash for verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "days": {
   "type": "integer"
  },
  "topic": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "osint_deep",
  "result": {
   "tema": "...",
   "tier": "deep",
   "brief": {
    "brief": [],
    "titular": "...",
    "evaluacion_fuentes": []
   },
   "sello": {
    "firma": "SYNTHORA",
    "sha256": "..."
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-osint-deep-intelligence-api-30ac16b1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from osint-deep.hergertsynthora.com](https://www.zero.xyz/host/osint-deep.hergertsynthora.com/llms.txt)