# claimbase

> claimbase — 4-r-c-4-n-4-claimbase. Use this tool when you need to extract and query verifiable claims from a trusted log, solving problems of data integrity and provenance in various use cases. Claimbase provides a read-only interface to a bitemporal claim graph, with optional write access for trusted sources, and takes in capture logs as input, outputting compiled knowledge substrates. It is ideal for applications requiring transparent and reliable data extraction and querying.

Canonical page: https://skillsregistry.net/skills/4-r-c-4-n-4-claimbase  
JSON: https://api.skillsregistry.net/v1/skills/4-r-c-4-n-4-claimbase

## Description

Provides a compiled knowledge substrate, extracting atomic claims from an append-only capture log and querying a bitemporal claim graph over MCP. Read-only by default, with opt-in writes for trusted sources.

## Trust

- **Trust score (0–1):** 0.38
- **Verification tier:** scanned
- **Last scanned:** 2026-08-29

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-08-29

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/azzyh55fui)
- **Repository:** <https://github.com/4-R-C-4-N-4/claimbase>

## 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": "4-r-c-4-n-4-claimbase"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/4-r-c-4-n-4-claimbase` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/4-r-c-4-n-4-claimbase/pull`

---
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