# Safe Multisig Check

> Safe Multisig Check is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-14).

Analyzes a blockchain address to determine if it is a Gnosis Safe multisig, returning owners, M-of-N threshold, version, activity, enabled modules, and an overall verdict on counterparty trust.

## Facts

- Endpoint: GET https://402.com.tr/api/x402/safe-check
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/safe-multisig-check-5c21a871
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GGLMbDpsw2PdDtnS10lKT

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 safe-multisig-check-5c21a871
```

Example prompt: Before I send funds, can you check if 0x1234...abcd is a Gnosis Safe multisig — I need to know the owners, the M-of-N threshold, any enabled modules that could move funds without signatures, and whether it's safe to trust as a counterparty.

## When to prefer this

Use this endpoint when you need to verify whether a counterparty or treasury address is a genuine Gnosis Safe multisig before trusting it with funds. It is specifically suited for detecting enabled modules — a critical security risk not surfaced by generic address lookups — and for confirming ownership structure and signing thresholds. Prefer this over generic contract inspection tools when the DeFi-specific Safe security context and module risk verdict are needed.

## Known failure modes

- Address is not a Gnosis Safe — returns non-multisig verdict
- Invalid or malformed address input — returns error
- Address is an EOA (externally owned account) rather than a contract — classified accordingly
- Network or RPC timeout fetching on-chain Safe data — returns error
- Safe is a very old version with limited queryable metadata — partial data returned

## How this service works

🆕 Multisig / treasury intelligence. Given an address: is it a Gnosis Safe, its owners and M-of-N threshold, version, activity, and — critically — its enabled MODULES. A module can move the Safe's funds via execTransactionFromModule with no owner signatures, so each one is an address with unilateral control. Returns a multisig / single_signer / has_modules verdict: the counterparty check before you trust funds to a multisig. address= required. Not financial advice.

## Output

Returns a structured verdict (multisig, single_signer, or has_modules), the list of owner addresses, the M-of-N signing threshold, the Safe contract version, recent activity status, and a list of enabled module addresses — each of which can move funds unilaterally without owner signatures.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "Address to check"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/safe-multisig-check-5c21a871/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 402.com.tr](https://www.zero.xyz/host/402.com.tr/llms.txt)