# C2PA Knowledge Graph

> Use this tool when you need to query and explore versioned C2PA specification knowledge graphs, enabling AI agents to browse entity definitions, validation rules, and version diffs via natural language. It solves problems related to understanding and navigating complex specification graphs, providing inputs such as natural language queries and outputs like entity definitions and validation rules. Ideal for use cases requiring knowledge graph exploration and version comparison, this tool streamlines the process of understanding and working with C2PA specifications.

Canonical page: https://skillsregistry.net/skills/encypherai-c2pa-knowledge-graph  
JSON: https://api.skillsregistry.net/v1/skills/encypherai-c2pa-knowledge-graph

## Description

MCP server for querying versioned C2PA specification knowledge graphs, enabling AI agents to browse entity definitions, validation rules, and version diffs via natural language.

## 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/i2cop99ygv)
- **Repository:** <https://github.com/encypherai/c2pa-knowledge-graph>

## 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": "encypherai-c2pa-knowledge-graph"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/encypherai-c2pa-knowledge-graph` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/encypherai-c2pa-knowledge-graph/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