# LimitGuard Entity Trust Check (MCP)

> LimitGuard Entity Trust Check (MCP) is a paid API for AI agents from limitguard.ai, paid per call via x402, $0.85/call, status unknown (last checked 2026-09-14).

Performs a full entity trust check via MCP-native interface, returning a trust score, cluster assignment, and APPROVE/REJECT recommendation for a named business entity.

## Facts

- Endpoint: POST https://limitguard.ai/v1/mcp/check-entity
- Price: $0.85/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/limitguard-entity-trust-check-mcp-4d066940
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Dn9od69G9kEEwOq-a2-0d

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 limitguard-entity-trust-check-mcp-4d066940 -d '<json body>'
```

Example prompt: Can you do a full trust check on Acme Logistics B.V. based in the Netherlands (NL) — I need their trust score, cluster, and whether we should approve or reject them before we proceed with the partnership?

## When to prefer this

Use this endpoint when you need a comprehensive MCP-native trust assessment of a business entity — especially within agentic workflows where inter-agent or agent-to-business trust decisions require a structured cluster + score + recommendation output. Prefer this over the lightweight risk-score endpoint when you need full data source scanning and a definitive APPROVE/REJECT recommendation. Ideal for KYB flows, vendor onboarding, and autonomous agent transaction gating.

## Known failure modes

- Missing required entity_name or country fields returns a validation error
- Unknown or unregistered entity may return a low trust score or null cluster
- Invalid ISO country code causes a 400 bad request
- KVK number format mismatch for Dutch entities may cause lookup failure
- Service unavailable or timeout returns a 5xx error
- Insufficient USDC balance (x402) results in payment failure and no response

## How this service works

MCP tool: full entity trust check for LLM agents. Same as /v1/entity/check with MCP-native interface.

## Output

Returns a trust cluster label (e.g. 'verified'), a numeric trust score from 0–100, and a recommendation string ('APPROVE' or 'REJECT') reflecting the entity's assessed reliability and compliance standing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "$schema": "https://json-schema.org/draft/2020-12/schema",
   "required": [
    "entity_name",
    "country"
   ],
   "properties": {
    "domain": {
     "type": "string",
     "description": "Entity website domain"
    },
    "country": {
     "type": "string",
     "description": "ISO country code (NL, BE, etc.)"
    },
    "kvk_number": {
     "type": "string",
     "description": "Dutch KVK number"
    },
    "entity_name": {
     "type": "string",
     "description": "Full legal name of the entity"
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  },
  "sandbox": {
   "type": "object",
   "required": [
    "url"
   ],
   "properties": {
    "url": {
     "type": "string"
    },
    "curl": {
     "type": "string"
    },
    "note": {
     "type": "string"
    }
   }
  },
  "recovery": {
   "type": "object",
   "required": [
    "url"
   ],
   "properties": {
    "url": {
     "type": "string"
    },
    "curl": {
     "type": "string"
    }
   }
  },
  "documentation_url": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {
  "cluster": "verified",
  "trust_score": 87,
  "recommendation": "APPROVE"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/limitguard-entity-trust-check-mcp-4d066940/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from limitguard.ai](https://www.zero.xyz/host/limitguard.ai/llms.txt)