# null-trust-score

> Use this tool when you need to assess the safety of MCP servers before connecting, as it provides a composite trust score and letter grade to help AI agents evaluate security risks. The null-trust-score tool solves the problem of uncertain server security by offering a reliable and quantifiable measure of trustworthiness. It takes server queries as input and returns a trust score and letter grade as output, making it ideal for use cases where secure connections are critical.

Canonical page: https://skillsregistry.net/skills/nullbuilds-ai-null-trust-score  
JSON: https://api.skillsregistry.net/v1/skills/nullbuilds-ai-null-trust-score

## Description

Enables AI agents to query trust scores and security reviews for MCP servers before connecting, helping assess safety via a composite score and letter grade.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/jpj7dvnu1q)
- **Repository:** <https://github.com/nullbuilds-ai/null-trust-score>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "nullbuilds-ai-null-trust-score"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/nullbuilds-ai-null-trust-score` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/nullbuilds-ai-null-trust-score/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt