Little Green Light MCP by usefulapi

Little Green Light MCP by usefulapi

Use Little Green Light from Claude, Cursor, or any MCP client — search constituents, gifts, notes and memberships, and create constituents, gifts, notes and contact reports. Hosted, no local install: connect with your own Little Green Light credentials.

Live endpoint: https://little-green-light.usefulapi.io/mcp · Homepage: https://usefulapi.io/little-green-light

Connect

• Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://little-green-light.usefulapi.io/mcp.
• Claude Code: claude mcp add --transport http little-green-light https://little-green-light.usefulapi.io/mcp, then run /mcp to log in.
• VS Code: Add to VS Code.
• Cursor and other clients: add the URL as a remote MCP server:

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

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your Little Green Light credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/little-green-light/

On first connect you'll provide your Little Green Light API key (Settings > Integration settings > LGL API). They're validated, stored per-user, and scoped to you — no keys in config files.

Tools

Tool	Type	What it does
lgl_search_constituents	read	Search constituents
lgl_get_constituent	read	Get a constituent
lgl_list_constituent_gifts	read	List a constituent's gifts
lgl_search_gifts	read	Search gifts
lgl_get_gift	read	Get a gift
lgl_list_constituent_notes	read	List a constituent's notes
lgl_list_constituent_contact_reports	read	List a constituent's contact reports
lgl_list_constituent_memberships	read	List a constituent's memberships
lgl_list_appeals	read	List appeals
lgl_list_campaigns	read	List campaigns
lgl_list_funds	read	List funds
lgl_list_events	read	List events
lgl_list_groups	read	List groups
lgl_list_team_members	read	List team members
lgl_list_type_values	read	List lookup values
lgl_create_constituent	write	Create a constituent
lgl_update_constituent	write	Update a constituent
lgl_create_gift	write	Record a gift
lgl_create_note	write	Add a note
lgl_create_contact_report	write	Log a contact report
lgl_usage_status	meta	Usage status (free-tier meter)
lgl_request_feature	meta	Request a missing feature
lgl_upgrade	meta	Upgrade to Pro (unlimited*)
lgl_cancel_subscription	meta	Cancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

Plan	Price	Limit
Free	$0	50 tool calls / month
Pro (per user)	$9/mo or $90/yr (2 months free)	Unlimited*

*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].

Pro covers this server only. Subscribe with lgl_upgrade (it returns a Stripe Checkout link). Cancel any time with lgl_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running lgl_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT © usefulapi. Not affiliated with or endorsed by Little Green Light.