HelioSPICE vs Godot MCP
A side-by-side look at the HelioSPICE and Godot MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose HelioSPICE for aerospace & astrodynamics work as a local process; choose Godot MCP for gaming as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose HelioSPICE when
- You need dedicated capabilities in the Aerospace & Astrodynamics domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
XHELIO_SPICE_KERNEL_DIR. - You want tools like
get_ephemeris, compute_distance, transform_coordinates.
Choose Godot MCP when
- You need dedicated capabilities in the Gaming domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You have the keys it needs:
GODOT_PATH, DEBUG. - You want tools like
launch_editor, run_project, get_debug_output.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Aerospace & Astrodynamics | Gaming |
| Quality signal | 47/100 · Fair | 67/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Free |
| Required env vars | XHELIO_SPICE_KERNEL_DIR | GODOT_PATHDEBUG |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 6,311 |
| Directory activity | 1 views 0 installs 0 upvotes | 11 views 0 installs 0 upvotes |
| Tools | 6 | 14 |
| Full listing | View HelioSPICE | View Godot MCP |
Tools & capabilities
HelioSPICE tools 6
get_ephemerisPosition/velocity — single time (inline) or timeseries (CSV)compute_distanceDistance between two bodiestransform_coordinatesCoordinate frame transformlist_spice_missionsSupported missionslist_coordinate_framesAvailable frames with descriptionsmanage_kernelsKernel cache management
Godot MCP tools 14
launch_editorLaunch Godot editor for a specific projectrun_projectRun the Godot project and capture outputget_debug_outputGet the current debug output and errorsstop_projectStop the currently running Godot projectget_godot_versionGet the installed Godot versionlist_projectsList Godot projects in a directoryget_project_infoRetrieve metadata about a Godot projectcreate_sceneCreate a new Godot scene fileadd_nodeAdd a node to an existing sceneload_spriteLoad a sprite into a Sprite2D nodeexport_mesh_libraryExport a scene as a MeshLibrary resourcesave_sceneSave changes to a scene file- +2 more on 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.
HelioSPICE
{
"mcpServers": {
"heliospice": {
"command": "uvx",
"args": [
"xhelio-spice"
],
"env": {
"XHELIO_SPICE_KERNEL_DIR": "YOUR_XHELIO_SPICE_KERNEL_DIR_HERE"
}
}
}
}
Godot MCP
{
"mcpServers": {
"coding-solo-godot-mcp": {
"command": "npx",
"args": [
"-y",
"@coding-solo/godot-mcp"
],
"env": {
"GODOT_PATH": "YOUR_GODOT_PATH_HERE",
"DEBUG": "YOUR_DEBUG_HERE"
}
}
}
}
Frequently asked questions
HelioSPICE is categorized under Aerospace & Astrodynamics and uses a local stdio subprocess. Godot MCP belongs to Gaming and uses a local stdio subprocess. Pick HelioSPICE for aerospace & astrodynamics work and Godot MCP for gaming.
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.
HelioSPICE has no declared pricing — check the project's own site. Godot MCP is listed as free. Auth: no auth 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 heliospice and coding-solo-godot-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, HelioSPICE has a quality signal of 47/100 (Fair) with 1 views, 0 installs and 0 GitHub stars. Godot MCP has 67/100 (Great) with 11 views, 0 installs and 6,311 GitHub stars.