# Knox Anchor

> Use this tool when you need to create a tamper-evident record of AI agent activities, file hashes, or custom events, and anchor them to the Bitcoin blockchain for permanent audit trails. Knox Anchor solves problems related to data integrity and security by providing a secure and transparent way to record and verify events. It accepts various inputs, including tool calls, file hashes, and custom events, and outputs verifiable anchors on the blockchain, making it ideal for use cases requiring high security and transparency.

Canonical page: https://skillsregistry.net/skills/bonissystems-knox-anchor  
JSON: https://api.skillsregistry.net/v1/skills/bonissystems-knox-anchor

## Description

Knox Anchor creates tamper-evident audit permanence by anchoring AI agent tool calls, file hashes, and custom events to the Bitcoin blockchain via OpenTimestamps. It provides seven tools for chain health checks, event type listings, anchor verification, event anchoring, MCP tool call recording, and file hash anchoring. A public demo API key is auto-provisioned for unauthenticated callers with a free tier of 10,000 anchors per month.

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-09-02

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/bonissystems-knox-anchor)

## 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": "bonissystems-knox-anchor"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/bonissystems-knox-anchor` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/bonissystems-knox-anchor/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