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InferMap

benzsevern/infermap

This connects Claude to an inference-driven schema mapper that figures out how messy CSV columns correspond to a clean target schema. You get seven scorers out of the box: exact match, alias dictionary, initialism detection, pattern types (email, phone, UUID), statistical profiling, fuzzy string similarity, and an optional LLM scorer. It runs the Hungarian algorithm to find optimal one-to-one assignments, then returns mappings with confidence scores and human-readable reasoning. The Python and TypeScript implementations share a golden-test parity suite, so mapping decisions are verified bit-for-bit across both. Reach for this when you're onboarding external data, normalizing CRM exports, or building ETL pipelines where column names are inconsistent and you need reproducible, explainable field matching without manual config.

tools
4
transport
STDIO, HTTP
last updated
May 11, 2026
View on GitHub

Install

From registry metadata
$ npx add-mcp https://infermap-mcp-production.up.railway.app/mcp/ --name infermap

Run in your terminal. add-mcp asks which agents to add it to (Claude Code, Codex, Cursor and more). Add -g to install it for every project.

Review the command, arguments and environment values before installing. MCP servers run with your local permissions.

Other ways

Claude Code

$ claude mcp add --transport http infermap https://infermap-mcp-production.up.railway.app/mcp/

Run in your terminal. Add --scope user to make it available in every project.

Tools

Verified live · 4 tools

Verified live against the running server on Jun 10, 2026.

mapMap source columns to target schema using a weighted scorer pipeline with optimal 1:1 assignment. Returns mappings with confidence scores and human-readable reasoning.6 params

Map source columns to target schema using a weighted scorer pipeline with optimal 1:1 assignment. Returns mappings with confidence scores and human-readable reasoning.

Parameters* required
domainsarray
Domain dictionaries to load (e.g. ['healthcare', 'finance'])
min_confidencenumber
Minimum confidence threshold (default 0.2)default: 0.2
schema_filestring
Path to schema definition YAML file (optional)
source*string
Path to source data (CSV, Parquet, Excel, DB URI, schema YAML)
tablestring
Table name for DB sources (optional)
target*string
Path to target data (same variety of inputs)
inspectInspect a data source — show fields, types, sample values, null rates, unique rates, and statistics.2 params

Inspect a data source — show fields, types, sample values, null rates, unique rates, and statistics.

Parameters* required
source*string
Path to data source (CSV, Parquet, Excel, DB URI, schema YAML)
tablestring
Table name for DB sources (optional)
validateValidate that a source file's columns satisfy a saved mapping config. Reports missing source columns and unmapped required fields.3 params

Validate that a source file's columns satisfy a saved mapping config. Reports missing source columns and unmapped required fields.

Parameters* required
config*string
Path to mapping config YAML file
required_fieldsarray
Target field names that must be mapped
source*string
Path to source data file
applyApply a saved mapping config to a source CSV, renaming columns according to the mapping and writing the result to an output file.3 params

Apply a saved mapping config to a source CSV, renaming columns according to the mapping and writing the result to an output file.

Parameters* required
config*string
Path to mapping config YAML file
output*string
Output CSV file path
source*string
Path to source CSV file

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Readme

Moved. This repo has moved into the benzsevern/goldenmatch monorepo at packages/python/infermap (and packages/typescript/infermap)/. This repo is archived; new development happens in the monorepo.

infermap

Inference-driven schema mapping engine.
Map messy source columns to a known target schema — accurately, explainably, with zero config.
Built by Ben Severn.

View the full README on GitHub

Details

Repository
github.com/benzsevern/infermap
Website
benzsevern.github.io/infermap
Package
infermap
Transport
STDIO, HTTP
Registry
MCP registry, active
Tools verified
Jun 10, 2026

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