# SYNTHORA OSINT Flash

> SYNTHORA OSINT Flash is a paid API for AI agents from osint-flash.hergertsynthora.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-13).

Returns a signed OSINT intelligence brief on a given topic covering a specified number of days, delivered as a structured summary with sources and a cryptographic signature.

## Facts

- Endpoint: POST https://osint-flash.hergertsynthora.com/service
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-osint-flash-252ad3e5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Z7pZSn-UfX5OdkmlSoUjN

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-flash-252ad3e5 -d '<json body>'
```

Example prompt: Pull a SYNTHORA OSINT flash brief on 'Binance' covering the last 7 days — I need the headline, bullet summary, and sources.

## When to prefer this

Choose this endpoint when you need a fast, cryptographically signed OSINT intelligence brief on any topic without requiring an API key or account signup — payment in USDC on Base mainnet is the sole authentication mechanism. Prefer this over traditional OSINT APIs when operating in a trustless or autonomous agent context where per-call micropayments are preferred over subscription credentials, and when response authenticity verification via Ed25519 signature and SHA256 hash is required.

## Known failure modes

- HTTP 402 returned if no payment header is provided — caller must re-POST with X-PAYMENT header carrying valid EIP-3009 transferWithAuthorization
- Insufficient USDC balance on Base mainnet causes payment failure and no result returned
- Malformed topic string or missing required fields may result in error response
- Topic with no available open-source data may return empty brief and sources arrays
- Payment authorization expired or replayed may be rejected by the x402 facilitator

## 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 boolean ok field, a niche identifier ('osint_flash'), a result object with a 'tema' field (the subject), a 'brief' object containing an array of brief bullet points, a list of sources ('fuentes'), and a headline ('titular'), plus a 'sello' object with a SYNTHORA signature label and a SHA256 hash for cryptographic verification. Responses are Ed25519-signed.

## 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_flash",
  "result": {
   "tema": "...",
   "brief": {
    "brief": [],
    "fuentes": [],
    "titular": "..."
   },
   "sello": {
    "firma": "SYNTHORA",
    "sha256": "..."
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-osint-flash-252ad3e5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from osint-flash.hergertsynthora.com](https://www.zero.xyz/host/osint-flash.hergertsynthora.com/llms.txt)