io.github.davidmosiah/astral-mcp
astral-mcp-server
Is the io.github.davidmosiah/astral-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
Precision-audited astrology MCP: natal charts, transits, synastry, moon phases. No API key.
alive probed 2026-11-15 · unchanged since 2026-10-31
- Run it
- npx -y astral-mcp@0.2.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- astral-mcp-server 0.2.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- 0.7 % of a 1M context window
- Count
- 6.9k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 7.0k. The o200k_base estimate is 4.1k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/davidmosiah/astral-mcp
- Website
- https://github.com/davidmosiah/astral-mcp
- Registry
- active, updated 2026-06-07 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.67×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| astral_synastry | 1 866 | 1 115 | 27 % |
| astral_current_transits | 1 548 | 925 | 23 % |
| astral_compute_natal_chart | 1 455 | 869 | 21 % |
| astral_moon_phase | 464 | 277 | 7 % |
| astral_search_birthplace | 430 | 257 | 6 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- Redshift MCP Server io.github.davidalbertonogueira/redshift-mcp-server · no executable
- io.github.davidandradebar/ghl-master · alive
- Datanotes io.github.davidefornelli/datanotes · needs args
- io.github.davidmosiah/apple-health-mcp · alive
- io.github.davidmosiah/delx-living-body · alive
- Delx MCP Server io.github.davidmosiah/delx-mcp-server · needs network
- io.github.davidmosiah/delx-memory · alive
- io.github.davidmosiah/eight-sleep-mcp · alive
Servers that mention astral.
- com.prediohq/catastro · alive
- io.github.55tarkun/geojp · needs auth
- Capivara: Investigação Cadastral io.github.mcp-dir/capivara-mcp · alive
- Consulta SINTEGRA — Inscrição Estadual por CNPJ (RS, PR) io.github.paulovitorti/sintegra-inscricao-estadual-br · needs auth
- Cadastro PJ Básico io.github.mcp-dir/cnpj_cadastral-mcp · alive
- Cadastro PJ Plus io.github.mcp-dir/cnpj_cadastral_plus-mcp · alive
- Cadastro PF Básico io.github.mcp-dir/cpf_cadastral-mcp · alive
- Cadastro PF Plus io.github.mcp-dir/cpf_cadastral_plus-mcp · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.