Naelos.ai
Claude connectorCommunityAstrology charts, transits and eclipses from NASA JPL data, 13,200 BC to AD 17,191. Free, no sign-in.
Naelos.ai gives Claude accurate astrology calculations instead of estimates. It is built on Naelos Ephemeris, an open-source engine computed from NASA JPL's DE440 and DE441 ephemerides, matching JPL to within 0.02″ across 1550–2649 and checked against JPL Horizons from 9000 BC to AD 9000.
Ten read-only tools cover birth charts in nine house systems, the sky at any moment, a planet's position at any date in 15,000 years, exact transits to a chart, synastry, solar and lunar returns, progressions and solar arcs, ingresses, lunations, retrograde stations, eclipses, and Naelos's 198 researched national charts and 19 empire charts.
Every answer comes in plain English and JSON, names its source, and links to the full chart on naelos.ai. Birth data is used only for the calculation and is never stored.
- Tools
- 10
exposed by this connector
Movement
From our daily snapshots over the last 30 days.
Rank by popularity
Not enough data points to chart.
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Popularity score
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Trending score
In its categories
How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Education480th of 552 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 478 |  MAKOVA | 2,000 | — | — |
| 479 |  Melo | 2,000 | — | — |
| 480 | 2,000 | — | — | |
| 481 |  NexusDigest | 2,000 | — | — |
| 482 | 2,000 | — | 1,443places down |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 | 42,345,503 | 13,242 #16 | 0 | |
| 2 | 1,150,667 | 9,420 #67 | 8places up | |
| 3 |  Sketchy Medical | 791,248 | 10,028 #49 | 8places down |
| 4 | 613,158 | 8,271 #106 | 78places up | |
| 5 |  Claude Academy | 465,374 | 15,594 #5 | 35places up |
Other591st of 688 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 589 |  LiveCRM | 2,000 | — | 944places down |
| 590 | 2,000 | — | 944places down | |
| 591 | 2,000 | — | — | |
| 592 | 2,000 | — | — | |
| 593 |  North Carolina General Statutes | 2,000 | — | 944places down |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 | 42,345,503 | 13,242 #20 | 0 | |
| 2 |  Tomorrow.io Weather MCP App | 6,032,104 | 13,101 #22 | 1places down |
| 3 | Sketchy Medical | 791,248 | 10,028 #74 | 8places down |
| 4 | 318,711 | 14,726 #13 | 28places down | |
| 5 |  Tebar | 305,096 | 8,331 #132 | — |
Tools
- eclipses
- naelos_library
- natal_chart
- planet_position
- progressions
- returns
- sky_now
- synastry
- timing_events
- transits
- Sign-in
- Not required
- Connector URL
- https://mcp.naelos.ai/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- November 2, 2026
- More info
- Sponsorship
- Promote this connector