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LittleSis API Server

code-rabi/littlesis-mcp

Connects Claude to the LittleSis API, a public database tracking corporate power networks and political influence. Exposes endpoints for searching entities (companies, people, organizations), retrieving detailed profiles, mapping relationships between them, and exploring lists of connected actors. You'd reach for this when researching corporate accountability, tracking revolving door appointments between business and government, or adding context about political donations and power structures to your analysis. All data is CC BY-SA licensed. Covers the full API including entity search, relationship queries, and connection mapping across up to 300 entities at once.

GitHub stars: 2
tools: 8
transport: HTTP
last updated: Aug 5, 2025

Tools

8 tools

Public tool metadata for what this MCP can expose to an agent.

get_entityGet detailed information about a specific entity

Get detailed information about a specific entity

No parameter schema in public metadata yet.

get_entitiesGet multiple entities at once (up to 300)

Get multiple entities at once (up to 300)

No parameter schema in public metadata yet.

search_entitiesSearch for entities by name with filtering

Search for entities by name with filtering

No parameter schema in public metadata yet.

get_entity_extensionsGet entity types/classifications

Get entity types/classifications

No parameter schema in public metadata yet.

get_entity_relationshipsGet all relationships for an entity

Get all relationships for an entity

No parameter schema in public metadata yet.

get_entity_connectionsGet connected entities

Get connected entities

No parameter schema in public metadata yet.

get_entity_listsGet lists an entity appears on

Get lists an entity appears on

No parameter schema in public metadata yet.

get_relationshipGet detailed relationship information

Get detailed relationship information

No parameter schema in public metadata yet.

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Readme

LittleSis MCP Server

An MCP (Model Context Protocol) server that provides access to the LittleSis API for tracking corporate power and accountability relationships.

Installing via Smithery

To install littlesis-mcp for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @code-rabi/littlesis-mcp --client claude

API Coverage

This MCP server implements all major LittleSis API endpoints:

Entity Tools

get_entity - Get detailed information about a specific entity
get_entities - Get multiple entities at once (up to 300)
search_entities - Search for entities by name with filtering
get_entity_extensions - Get entity types/classifications
get_entity_relationships - Get all relationships for an entity
get_entity_connections - Get connected entities
get_entity_lists - Get lists an entity appears on

Relationship Tools

get_relationship - Get detailed relationship information

Usage Examples

View the full README on GitHub

Details

Repository: github.com/code-rabi/littlesis-mcp
Website: github.com/code-rabi/littlesis-mcp
Categories: AI & LLM Tools, Data & Analytics
Transport: HTTP

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