Little Green Light MCP by usefulapi

io.usefulapiPublished by usefulapi.ioOfficial publisherv1.39.1Updated Nov 14, 2026

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

The publisher's own server: Ably MCP by usefulapi

VerifiedStreamable HTTPWeb executableData & AnalyticsBusiness & Commerce

Overview

AI-generated overview

Hosted Little Green Light connector that lets an assistant search donors, gifts, memberships and notes, and record gifts, notes and contact reports.

What you can do
  • Search and read constituents, with full details, groups, memberships and custom attributes
  • Review giving history: search gifts by date, amount, fund or campaign, and read individual gifts
  • Read notes, contact reports and memberships logged on a constituent
  • List appeals, campaigns, funds, events, groups, team members and configured lookup values
  • Create or update constituents, record gifts, add notes and log contact reports
  • Check usage, request a feature, upgrade or cancel the subscription
When to use it
Useful for fundraising and nonprofit teams that want an assistant to answer questions about donors and giving, pull a constituent's history, or log gifts, notes and calls into Little Green Light without switching apps.
Requirements
Remote MCP endpoint added by URL only; sign-in uses OAuth, and the login page asks for a Little Green Light API key (found under Settings, Integration settings, LGL API). No API key or Authorization header goes in the client config. A Little Green Light account is required; the free tier allows 50 tool calls per month.
Before you install
Write tools create or change CRM records (constituents, gifts, notes, contact reports); confirm before running them. Your Little Green Light API key is entered at the hosted login and stored per user by the third-party provider. Paid plans cost $9/month or $90/year (Pro) and $39/month or $390/year (Pro+), billed through a Stripe checkout link; upgrades charge the price difference immediately and cancellations are not refunded for the current period.

Installation

In SourceWeft

  1. Open Little Green Light MCP by usefulapi in the dashboard and add it to a workspace.
  2. 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.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.usefulapi%2Flittle-green-light/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

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

README

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:
json
{  "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

ToolTypeWhat it does
lgl_search_constituentsreadSearch constituents
lgl_get_constituentreadGet a constituent
lgl_list_constituent_giftsreadList a constituent's gifts
lgl_search_giftsreadSearch gifts
lgl_get_giftreadGet a gift
lgl_list_constituent_notesreadList a constituent's notes
lgl_list_constituent_contact_reportsreadList a constituent's contact reports
lgl_list_constituent_membershipsreadList a constituent's memberships
lgl_list_appealsreadList appeals
lgl_list_campaignsreadList campaigns
lgl_list_fundsreadList funds
lgl_list_eventsreadList events
lgl_list_groupsreadList groups
lgl_list_team_membersreadList team members
lgl_list_type_valuesreadList lookup values
lgl_create_constituentwriteCreate a constituent
lgl_update_constituentwriteUpdate a constituent
lgl_create_giftwriteRecord a gift
lgl_create_notewriteAdd a note
lgl_create_contact_reportwriteLog a contact report
lgl_usage_statusmetaUsage status (free-tier meter)
lgl_request_featuremetaRequest a missing feature
lgl_upgrademetaUpgrade to Pro or Pro+
lgl_cancel_subscriptionmetaCancel 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

PlanPriceLimit
Free$050 tool calls / month
Pro (per user)$9/mo or $90/yr (2 months free)10,000 tool calls / month
Pro+ (per user)$39/mo or $390/yr (2 months free)100,000 tool calls / month

Each paid plan covers this server only. Ask your AI to run lgl_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with lgl_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with lgl_upgrade before then undoes the cancel. Or write to [email protected].

License

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

Source: servers/little-green-light/README.md at commit f22f848

Tools

20

lgl_search_constituents

Search constituents

Search active constituents (donors, members, volunteers, organizations). Give `name` and/or `email` for the common case, or raw `terms`. Available term fields: name, eaddr (email contains), phone_number, street, city, state (2-letter), postal_code, country, keyword (keyword id), updated_from / updated_to (YYYY-MM-DDTHH:MM:SSZ), membership_status (0 lapsed, 1 active), membership_level (comma-separated ids), membership_end_date_from / _to (YYYY-MM-DD), external_id, constituent_type (0 individual, 1 organization), groups (comma-separated group ids), lists (comma-separated list ids), custom_attr (key|op|value). At least one term is required. LGL: GET /api/v1/constituents/search.

Parametersnamesortemaillimittermsexpandoffset

lgl_get_constituent

Get a constituent

Full details for one constituent by LGL id: names, salutations, addresses, phone numbers, email addresses, groups, memberships and custom attributes. LGL: GET /api/v1/constituents/{id}.

Parametersidrequired

lgl_list_constituent_gifts

List a constituent's gifts

A constituent's giving history: every gift with amount, date, gift type, fund, campaign, appeal, event and payment type. LGL: GET /api/v1/constituents/{constituent_id}/gifts.

Parameterslimitoffsetconstituent_idrequired

lgl_search_gifts

Search gifts

Search active gifts across the account — e.g. everything received in a date range, or gifts to one fund or campaign. Give date/updated bounds and/or raw `terms`. Available term fields: date_from / date_to (YYYY-MM-DD), gift_types (in|ni + comma ids, e.g. in|1,7), gift_amount (gte|lte|btw|gt|lt|eq|ne + number[s], e.g. btw|100|1000), payment_types, campaigns, funds, appeals, events, categories (in|ni|bl + comma ids), appeal_types, event_types, constituent_type (0/1), gift_ids, external_gift_ids, created_from / created_to and updated_from / updated_to (YYYY-MM-DDTHH:MM:SSZ). At least one term is required. LGL: GET /api/v1/gifts/search.

Parameterssortlimittermsexpandoffsetdate_todate_fromupdated_toupdated_from

lgl_get_gift

Get a gift

Full details for one gift by id: amount, deductible amount, dates, fund/campaign/appeal/event, payment type, acknowledgment template, tribute and custom fields. LGL: GET /api/v1/gifts/{id}.

Parametersidrequired

lgl_list_constituent_notes

List a constituent's notes

Notes recorded on a constituent (type, text, original date). LGL: GET /api/v1/constituents/{constituent_id}/notes.

Parameterslimitoffsetconstituent_idrequired

lgl_list_constituent_contact_reports

List a constituent's contact reports

Contact reports (calls, emails, meetings) logged for a constituent, with type, date, text and team member. LGL: GET /api/v1/constituents/{constituent_id}/contact_reports.

Parameterslimitoffsetconstituent_idrequired

lgl_list_constituent_memberships

List a constituent's memberships

A constituent's memberships: level, start date and finish date — use it to see whether someone is current or lapsed. LGL: GET /api/v1/constituents/{constituent_id}/memberships.

Parameterslimitoffsetconstituent_idrequired

lgl_list_appeals

List appeals

Fundraising appeals (mailings, emails, asks) with campaign, date, financial goal, cost and active flag. Use the ids and names when recording gifts or filtering searches. LGL: GET /api/v1/appeals.

Parameterslimitoffset

lgl_list_campaigns

List campaigns

Campaigns with start/end dates, financial goal, code and active flag. Use the ids and names when recording gifts or filtering searches. LGL: GET /api/v1/campaigns.

Parameterslimitoffset

lgl_list_funds

List funds

Funds (where gifts are designated) with campaign, code, financial goal and active flag. Use the ids and names when recording gifts or filtering searches. LGL: GET /api/v1/funds.

Parameterslimitoffset

lgl_list_events

List events

Events (galas, lunches, board weekends) with dates, campaign, event type, goal and active flag. Use the ids and names when recording gifts or filtering searches. LGL: GET /api/v1/events.

Parameterslimitoffset

lgl_list_groups

List groups

Constituent groups (e.g. Board Member, Staff, Volunteer) with their ids and keys. Use the ids and names when recording gifts or filtering searches. LGL: GET /api/v1/groups.

Parameterslimitoffset

lgl_list_team_members

List team members

LGL user accounts on the team (name, email, admin flag) — the values a gift or contact report's team_member refers to. Use the ids and names when recording gifts or filtering searches. LGL: GET /api/v1/team_members.

Parameterslimitoffset

lgl_list_type_values

List lookup values

The account's configured lookup values for one type — the ids and names other tools accept. gift_types, payment_types and gift_categories come from their own endpoints (GET /api/v1/gift_types, /payment_types, /gift_categories — the last optionally filtered by gift_type_id); every other type from GET /api/v1/types/{type} (contact_report_types, note_types, appeal_types, event_types, email/phone/street/web address types, mailing_types, volunteering_categories, list_types).

Parameterstyperequiredlimitoffsetgift_type_id

lgl_create_constituent

Create a constituent

WRITE: add a new constituent (person or organization) to the account, optionally with email addresses, phone numbers, street addresses and group memberships. LGL's schema marks first_name, last_name and email_addresses as required. Search first (lgl_search_constituents) to avoid creating a duplicate. LGL: POST /api/v1/constituents.

Parametersgendergroupsis_orgprefixsuffixis_anonbirthdayorg_nameaddresseejob_titlelast_namerequirednick_name+13 more

lgl_update_constituent

Update a constituent

WRITE: change scalar fields on an existing constituent (name, salutation, job title, org name, deceased flag, etc.). Only the fields you pass are sent. LGL's update schema marks first_name and last_name as required, so pass the current values (from lgl_get_constituent) if you are not changing them. Addresses, emails and phones are not edited here. LGL: PATCH /api/v1/constituents/{id}.

Parametersidrequiredgenderis_orgprefixsuffixis_anonbirthdayorg_nameaddresseejob_titlelast_namerequirednick_name+10 more

lgl_create_gift

Record a gift

WRITE: record a gift (donation, pledge payment, in-kind, etc.) on a constituent's record. This writes a CRM record of a gift that already happened — it does NOT charge a card or move money. Give gift_type_id or gift_type_name (required; see lgl_list_type_values type=gift_types). Fund, campaign, appeal, event, gift category and payment type may each be given by id or by exact name. Set ack_template_name to 'do_not_ack' to skip acknowledgment. LGL: POST /api/v1/constituents/{constituent_id}/gifts.

Parametersnotefund_idis_anonevent_idappeal_idfund_nameevent_nameappeal_namecampaign_idexternal_idteam_membercheck_number+14 more

lgl_create_note

Add a note

WRITE: add a note to a constituent's record. text and original_date are required; the note type may be given by id or name (e.g. 'General'; see lgl_list_type_values type=note_types). LGL: POST /api/v1/constituents/{constituent_id}/notes.

Parameterstextrequiredexternal_idnote_type_idoriginal_daterequiredconstituent_idrequirednote_type_name

lgl_create_contact_report

Log a contact report

WRITE: log a contact report (a call, email or meeting with a constituent). text is required; the type may be given by id or name (e.g. 'Call'; see lgl_list_type_values type=contact_report_types). LGL: POST /api/v1/constituents/{constituent_id}/contact_reports.

Parametersnametextrequiredteam_memberoriginal_dateconstituent_idrequiredcontact_report_type_idcontact_report_type_name

Version history

25
  1. v1.39.1LatestNov 13, 2026
  2. v1.38.0Nov 12, 2026
  3. v1.37.3Nov 11, 2026
  4. v1.36.5Nov 8, 2026
  5. v1.36.4Nov 7, 2026
  6. v1.35.3Nov 5, 2026
  7. v1.35.2Nov 5, 2026
  8. v1.35.1Nov 4, 2026
  9. v1.35.0Nov 3, 2026
  10. v1.34.1Nov 3, 2026
  11. v1.33.0Nov 1, 2026
  12. v1.31.0Oct 31, 2026
  13. v1.30.0Oct 31, 2026
  14. v1.29.2Oct 30, 2026
  15. v1.29.0Oct 30, 2026
  16. v1.24.0Oct 26, 2026
  17. v1.21.3Oct 25, 2026
  18. v1.21.0Oct 25, 2026
  19. v1.20.0Oct 24, 2026
  20. v1.17.0Oct 23, 2026
  21. v1.16.4Oct 22, 2026
  22. v1.16.3Oct 21, 2026
  23. v1.11.1Oct 9, 2026
  24. v1.10.0Oct 9, 2026
  25. v1.0.0Sep 30, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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