# Orbuc

> Use this tool when you need to access on-chain data for stablecoin market capitalization and Bitcoin institutional holdings, solving problems related to cryptocurrency market research and investment analysis. It provides valuable insights into the crypto market, accepting queries as input and returning relevant data as output. Ideal for use cases involving market monitoring, investment decisions, and financial research.

Canonical page: https://skillsregistry.net/skills/io-github-xorbuc-orbuc  
JSON: https://api.skillsregistry.net/v1/skills/io-github-xorbuc-orbuc

## Description

On-chain stablecoin market cap and Bitcoin institutional holdings data.

## Trust

- **Trust score (0–1):** 1.00
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-09-28

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.github.xOrbuc%2Forbuc)
- **Repository:** <https://github.com/xOrbuc/orbuc-mcp-server>

## Use it

MCP endpoint published by the skill: `https://mcp.orbuc.io/mcp/orbuc`

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": "io-github-xorbuc-orbuc"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/io-github-xorbuc-orbuc` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/io-github-xorbuc-orbuc/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