Little Green Light

io.usefulapiv1.0.0Updated Sep 30, 2026

Search Little Green Light donors, gifts, notes and memberships, and add gifts and contact reports.

VerifiedStreamable HTTPWeb executableBusiness & Commerce Productivity & Workflow

Overview

AI-generated overview

Lets an assistant search Little Green Light donor, gift, note and membership records and create constituents, gifts, notes and contact reports.

What it does: A hosted MCP server for the Little Green Light fundraising CRM. Read tools search and retrieve constituents, gifts, notes, contact reports, memberships, appeals, campaigns, funds, events, groups, team members and lookup values. Write tools create or update constituents and record gifts, notes and contact reports. Two meta tools report usage and manage the subscription.
When to use it: Useful when an assistant should look up donor and gift history or log fundraising activity in Little Green Light without leaving the chat client. Suited to nonprofit development and fundraising workflows that already use Little Green Light.
Requirements: A remote streamable HTTP endpoint; no local install or package. Requires a Little Green Light account and API key, entered on first connect and stored per user. Network access to the hosted endpoint.

Before you install

Write tools create or update constituents and record gifts, notes and contact reports, so changes should be confirmed before running. The Little Green Light API key is a credential granting access to donor data; it is stored per user by the provider. Free tier is limited to 100 tool calls per month; Pro is $9/month or $90/year.

Installation

In SourceWeft

Open Little Green Light in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "little-green-light": {
      "type": "http",
      "url": "https://little-green-light.usefulapi.io/mcp"
    }
  }
}

README