Astronomy Oracle vs Hindsight
A side-by-side look at the Astronomy Oracle and Hindsight MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Astronomy Oracle for aerospace & astrodynamics work as a local process; choose Hindsight for knowledge & memory as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Astronomy Oracle when
- You need dedicated capabilities in the Aerospace & Astrodynamics domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
lookup_object, search_objects, plan_session.
Choose Hindsight when
- You need dedicated capabilities in the Knowledge & Memory domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
HINDSIGHT_API_LLM_API_KEY.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Aerospace & Astrodynamics | Knowledge & Memory |
| Quality signal | 65/100 · Great | 57/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | API key required |
| Pricing | Free | Free |
| Required env vars | None listed | HINDSIGHT_API_LLM_API_KEY |
| Verified owner | Community listing | Community listing |
| GitHub stars | 3 | 51,891 |
| Directory activity | 7 views 1 installs 0 upvotes | 13 views 0 installs 0 upvotes |
| Tools | 3 | Not listed |
| Full listing | View Astronomy Oracle | View Hindsight |
Tools & capabilities
Astronomy Oracle tools 3
lookup_objectLook up a celestial object by Messier number (e.g. M31), NGC/IC designation (e.g. NGC7000), or common name (e.g. Andromeda Galaxy). Optionally compute visibility from a given location and time.search_objectsSearch and filter the celestial object catalog by type, constellation, magnitude, angular size, or catalog membership. Returns a formatted table of matching objects sorted by brightness.plan_sessionGenerate an observing session plan for a given location and date. Returns the best celestial objects to observe grouped by time window (evening, midnight, pre-dawn), scored by observability.
Hindsight tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Astronomy Oracle
{
"mcpServers": {
"gregario-astronomy-oracle": {
"command": "npx",
"args": [
"-y",
"astronomy-oracle"
]
}
}
}
Hindsight
{
"mcpServers": {
"vectorize-io-hindsight": {
"command": "npx",
"args": [
"-y",
"@vectorize-io/hindsight-coding-agents"
],
"env": {
"HINDSIGHT_API_LLM_API_KEY": "YOUR_HINDSIGHT_API_LLM_API_KEY_HERE"
}
}
}
}
Frequently asked questions
Astronomy Oracle is categorized under Aerospace & Astrodynamics and uses a local stdio subprocess. Hindsight belongs to Knowledge & Memory and uses a local stdio subprocess. Pick Astronomy Oracle for aerospace & astrodynamics work and Hindsight for knowledge & memory.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Astronomy Oracle is listed as free. Auth: no auth required. Hindsight is listed as free. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add gregario-astronomy-oracle and vectorize-io-hindsight as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Astronomy Oracle has a quality signal of 65/100 (Great) with 7 views, 1 installs and 3 GitHub stars. Hindsight has 57/100 (Good) with 13 views, 0 installs and 51,891 GitHub stars.