# io.github.scottchronicity/ephemeris-mcp

> Use this tool when you need to calculate precise astronomical ephemeris and planetary positions. It solves problems related to astronomical research, navigation, and timing by providing accurate positions of celestial bodies via the Swiss Ephemeris. With input parameters such as date and time, it outputs precise planetary positions, making it ideal for use cases requiring high accuracy in astronomical calculations.

Canonical page: https://skillsregistry.net/skills/io-github-scottchronicity-ephemeris-mcp  
JSON: https://api.skillsregistry.net/v1/skills/io-github-scottchronicity-ephemeris-mcp

## Description

Precision astronomical ephemeris and planetary positions via the Swiss Ephemeris.

## Trust

- **Trust score (0–1):** 1.00
- **Verification tier:** verified
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 1.2.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-19

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.github.scottchronicity%2Fephemeris-mcp)
- **Repository:** <https://github.com/scottchronicity/ephemeris-mcp>

## 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": "io-github-scottchronicity-ephemeris-mcp"
    }
  }
}
```

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