fitter_run

MCP tool from Fitter by PxyUp

Run a Fitter config passed inline (JSON or YAML string) and return the extracted data as JSON. Accepts an optional input value available in the config via {{{FromInput=.}}} / {{{FromInput=json.path}}}

How to use it

fitter_run is exposed by the Fitter MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the fitter_run tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

Install Fitter

$claude mcp add fitter -s user -- "$(pwd)/fitter_mcp"

FULL FITTER LISTING

Other tools in Fitter (4)

fitter_config_reference

Return a condensed reference of the whole config format (connectors, parsers, model/field schema, placeholders, notifiers, references, limits) with working examples, so the model can author configs without external docs

fitter_run_file

Same as fitterrun but reads the config from a local .json/.yaml file

fitter_run_url

Same as fitterrun but downloads the config from an HTTP(S) URL, e.g. a raw GitHub link

fitter_validate_config

Validate a config without executing it (structure, responsetype, connector data source, model). Useful while iterating on a config