Read-only table diffs with segment attribution: which slice of your data changed.
Connect Runs on your machine
claude mcp add datadiffer -e DATADIFFER_CONFIG=<DATADIFFER_CONFIG> -- uvx datadiffer==0.1.0
{
"mcpServers": {
"datadiffer": {
"command": "uvx",
"args": [
"datadiffer==0.1.0"
],
"env": {
"DATADIFFER_CONFIG": "<DATADIFFER_CONFIG>"
}
}
}
}
{
"mcpServers": {
"datadiffer": {
"command": "uvx",
"args": [
"datadiffer==0.1.0"
],
"env": {
"DATADIFFER_CONFIG": "<DATADIFFER_CONFIG>"
}
}
}
}
{
"servers": {
"datadiffer": {
"type": "stdio",
"command": "uvx",
"args": [
"datadiffer==0.1.0"
],
"env": {
"DATADIFFER_CONFIG": "<DATADIFFER_CONFIG>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
DATADIFFER_CONFIGOptional | Path to datadiffer.toml holding named connections (run `datadiffer init` to scaffold one). Credentials never pass through tool arguments. |
Details
| Package | [email protected] (PYPI, stdio) |
| First published | 27 Jul 2026 |
| Last updated | 27 Jul 2026 |
| Registry name | io.github.gauthierpiarrette/datadiffer |
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