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Open Ephemeris

Open Ephemeris is a high-precision astrology API with an MCP server exposing 116+ endpoints across natal charts, transits, synastry, Human Design, BaZi, solar returns, and much more.

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// key findings
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 1 credential: OPENEPHEMERIS_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// required environment variables
This server reads these from process.env. You'll be asked to provide them before it can run.
🔐 secretOPENEPHEMERIS_API_KEY"": "YOUR_API_KEY_HERE"
// full audit trail
The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.
// improvement guidance — verified publishers only
We have 1 concrete improvement we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/openephemeris-openephemeris-mcp-11n4en)](https://m8ven.ai/mcp/openephemeris-openephemeris-mcp-11n4en)
commit: 7a897d5da5ca57050d585de5819fb9818a089a46
code hash: 177b3d92008d02e464a1d0baaa84f027cfb2c8a544d2f8828971775bfad7a7a6
verified: 7/30/2026, 8:13:55 PM
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