Astrofabric MCP vs Data Nantes
A side-by-side look at the Astrofabric MCP and Data Nantes MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Astrofabric MCPData Platforms · Local subprocess (stdio)Business intelligence: company and contact discovery, verification, enrichment, business signals, lists and governed delivery.49FairAuth: api key requiredVerdict: choose Astrofabric MCP for data platforms work as a local process; choose Data Nantes for data platforms as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Astrofabric MCP when
- You need dedicated capabilities in the Data Platforms domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
ASTROFABRIC_API_KEY.
Choose Data Nantes when
- You need dedicated capabilities in the Data Platforms domain.
- You prefer a local stdio subprocess transport.
- You want tools like
search_datasets, dataset_info, query.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | Astrofabric MCP | |
|---|---|---|
| Category | Data Platforms | Data Platforms |
| Quality signal | 49/100 · Fair | 53/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | API key required | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | ASTROFABRIC_API_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 1 | 0 |
| Directory activity | 0 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | Not listed | 3 |
| Full listing | View Astrofabric MCP | View Data Nantes |
Tools & capabilities
Astrofabric MCP tools
No tool names declared yet. Check the project README from the listing page.
Data Nantes tools 3
search_datasetsSearch Nantes Métropole Open Data for datasets by keyword (mobility, urban services, environment & geography). Returns dataset_ids (pass to query/dataset_info), titles, themes and record counts.dataset_infoGet metadata for one Nantes Métropole Open Data dataset (fields/schema, themes, record count) — call before query to learn the column names.queryQuery records from a Nantes Métropole Open Data dataset with ODSQL. Filter (where), aggregate (group_by/select), sort (order_by), paginate (limit/offset).
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.
Astrofabric MCP
{
"mcpServers": {
"sam1siam-astrofabric-mcp": {
"command": "npx",
"args": [
"-y",
"github:sam1siam/astrofabric-mcp"
],
"env": {
"ASTROFABRIC_API_KEY": "YOUR_ASTROFABRIC_API_KEY_HERE"
}
}
}
}
Data Nantes
{
"mcpServers": {
"data-nantes": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-data-nantes"
]
}
}
}
Frequently asked questions
Astrofabric MCP is categorized under Data Platforms and uses a local stdio subprocess. Data Nantes belongs to Data Platforms and uses a local stdio subprocess. Pick Astrofabric MCP for data platforms work and Data Nantes for data platforms.
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.
Astrofabric MCP has no declared pricing — check the project's own site. Auth: api key required. Data Nantes has no declared pricing — check the project's own site. 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 sam1siam-astrofabric-mcp and data-nantes as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Astrofabric MCP has a quality signal of 49/100 (Fair) with 0 views, 0 installs and 1 GitHub stars. Data Nantes has 53/100 (Good) with 1 views, 0 installs and 0 GitHub stars.