CycleCalcs
Computes live sky positions, moon phases, eclipses and astronomical cycles in the browser, with an API for developers.
≈ 3.7kvisits/mo
Emerging · estimate, read 2026-10-13
- For
- stargazers and astronomy hobbyists checking tonight's sky, moon phases and eclipses
- Price
- Free plan · From $299 oncepricing page, read 2026-10-13 ↗
- Activity
- Actively maintainedrelease 2 months ago · site updated yesterday
- Company
- Domain since 2026domain registered
- Runs as
- API
- check tonight's visible planets and moon position
- plan a total solar eclipse viewing day
- find upcoming meteor showers and planetary conjunctions
- Domain since2026domain registered
- MCP servercom.cyclecalcs/astronomyverified in the MCP registry
- Stateanswers, 11 toolschecked 2026-10-13
- Address to connectwww.cyclecalcs.com/mcp
- API docscyclecalcs.com/developers.htmlthe vendor's page ↗
- MCP docscyclecalcs.com/api/mcp.htmlthe vendor's page ↗
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
What is CycleCalcs?
Computes live sky positions, moon phases, eclipses and astronomical cycles in the browser, with an API for developers.
Who is CycleCalcs for?
stargazers and astronomy hobbyists checking tonight's sky, moon phases and eclipses
How much does CycleCalcs cost?
CycleCalcs has a free plan; paid plans start at $299 once, per its pricing page on 2026-10-13.
Is CycleCalcs free?
Yes, CycleCalcs has a free plan, per its pricing page on 2026-10-13.
Do people use CycleCalcs?
Emerging: ≈ 3.7k visits/mo · estimate, 2026-10 · 20 installs/mo (npm).
Is CycleCalcs still maintained?
Actively maintained: release 2 months ago · site updated yesterday.
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