# Synthex Forge Threat Model Tool Permission Attestation

> Synthex Forge Threat Model Tool Permission Attestation is a paid API for AI agents from x402.synthexforge.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-23).

Validates and attests tool-permission assignments within a threat model manifest, returning a signed governance artifact confirming authorization

## Facts

- Endpoint: POST https://x402.synthexforge.com/v1/mcp/threatmodel/tool-permission?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthex-forge-threat-model-tool-permission-attestation-1711d9c2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SztNZRQ31P9DxRYEdjARm

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 synthex-forge-threat-model-tool-permission-attestation-1711d9c2 -d '<json body>'
```

Example prompt: Run a threat model tool-permission attestation on our manifest — here's the manifest object and the ownership proof string — and give me back a signed governance record confirming the tool permissions are authorized.

## When to prefer this

Choose this endpoint when you need a cryptographically signed, on-chain-payment-gated attestation specifically for tool-level permissions within a threat model — particularly when your governance workflow requires Ed25519 + SHA-256 signed artifacts and USDC-based payment proof on Base mainnet. Prefer it over generic permission checkers when you need an immutable, verifiable governance record tied to a specific manifest and ownership proof.

## Known failure modes

- HTTP 402 if USDC payment is not provided or fails on Base mainnet
- Invalid or malformed manifest object returns a validation error
- Missing or invalid ownership_proof string causes authorization failure
- Malformed JSON body returns a 400-level error
- Network or blockchain confirmation delays may cause timeouts

## How this service works

Synthex Forge x402 Receive: 41 paid verification, attestation and governance endpoints (Ed25519 + SHA-256 signed artifacts) plus free verify/public-key/standard sibling routes. Paid routes answer HTTP 402 with an x402 v2 `payment-required` envelope (atomic USDC on Base mainnet, chain ID 8453). Free routes are declared with `security: []` per the x402scan discovery spec.

## Output

Returns a JSON object with an 'ok' boolean confirming whether the tool-permission manifest passed validation, potentially accompanied by a signed Ed25519 + SHA-256 attestation artifact indicating governance approval. Payment of $0.25 USDC on Base mainnet (chain ID 8453) is required via x402 v2 before the response is delivered.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "manifest": {
   "type": "object"
  },
  "ownership_proof": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthex-forge-threat-model-tool-permission-attestation-1711d9c2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.synthexforge.com](https://www.zero.xyz/host/x402.synthexforge.com/llms.txt)