GoHighLevel API Skill

Turn your AI assistant into a GoHighLevel command center. Search contacts, send messages, book appointments, manage pipelines, create invoices, schedule social posts — across all 39 GHL API v2 endpoint groups, using plain English.

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Requirements

Base URL: https://services.leadconnectorhq.com Required Headers: Authorization: Bearer $HIGHLEVEL_TOKEN + Version: 2021-07-28 Rate Limits: 100 requests/10 seconds burst, 200K/day per location

Security Design

All API functions use pre-defined endpoint paths — there is no arbitrary HTTP request capability. Every user-supplied ID is validated against a strict alphanumeric regex (^[a-zA-Z0-9_-]{1,128}$) before being included in any URL path, preventing path traversal and injection. The scripts use only Python's built-in urllib.request for all network calls. No shell commands, no external binaries, no file writes outside of stdout.

Setup — /highlevel-setup

If the user says "set up highlevel", "connect my GHL", or /highlevel-setup, run the setup wizard:

python3 scripts/setup-wizard.py

The wizard automatically: checks environment variables → guides Private Integration creation → tests the connection → pulls first 5 contacts as a quick win.

Manual Setup (if wizard can't run)

Step 1: Create a Private Integration (NOT the old API Keys method)

1. Log into app.gohighlevel.com

2. Switch to your Sub-Account (recommended for single-location use)

3. Click Settings (bottom-left gear icon)

4. Select Private Integrations in the left sidebar

   • If not visible, enable it first: Settings → Labs → toggle Private Integrations ON

5. Click "Create new Integration"

6. Enter a name (e.g., "Claude AI Assistant") and description

7. Grant only the scopes you need (least-privilege recommended):

| Use case | Recommended scopes | |----------|--------------------| | Contact management only | contacts.readonly, contacts.write | | Contacts + messaging | Above + conversations.readonly, conversations.write, conversations/message.write | | Full CRM (contacts, calendar, pipeline) | Above + calendars.readonly, calendars.write, opportunities.readonly, opportunities.write | | Adding workflows & invoices | Above + workflows.readonly, invoices.readonly, invoices.write | | Read-only reporting | contacts.readonly, opportunities.readonly, calendars.readonly, invoices.readonly, locations.readonly |

You can always add more scopes later in Settings → Private Integrations → Edit without regenerating the token.

1. Click Create → Copy the token IMMEDIATELY — it is shown only once and cannot be retrieved later

Agency vs Sub-Account Integrations

Recommendation: Start with a Sub-Account integration and the minimum scopes you need. You can upgrade to Agency-level later if you need multi-location access.

Step 2: Get Your Location ID

1. While in the sub-account, go to Settings → Business Info (or Business Profile)

2. The Location ID is displayed in the General Information section

3. Alternative: check the URL bar — it's the ID after /location/ in app.gohighlevel.com/v2/location/{LOCATION_ID}/...

Step 3: Set Environment Variables

export HIGHLEVEL_TOKEN="your-private-integration-token"
export HIGHLEVEL_LOCATION_ID="your-location-id"

Step 4: Test Connection

Run python3 scripts/ghl-api.py test_connection — should return location name and status.

After successful setup, pull 5 contacts as a quick win to confirm everything works.

Helper Script

scripts/ghl-api.py — Executable Python script (stdlib only) with built-in retry logic, pagination, input validation, and error handling.

Core Commands: | Command | Description | |---------|-------------| | test_connection | Verify token + location ID work | | search_contacts [query] | Search by name, email, or phone | | get_contact [id] | Get full contact details | | create_contact [json] | Create new contact | | update_contact [id] [json] | Update contact fields | | list_opportunities | List pipeline opportunities | | list_conversations | List recent conversations | | send_message [contactId] [message] | Send SMS/email | | list_calendars | List all calendars | | get_free_slots [calendarId] [startDate] [endDate] | Available booking slots | | list_workflows | List all workflows | | add_to_workflow [contactId] [workflowId] | Enroll contact in workflow | | list_invoices | List invoices | | list_products | List products | | list_forms | List forms | | list_campaigns | List campaigns | | get_location_details | Get location info | | list_location_tags | List location tags | | list_courses | List courses/memberships |

All functions are safe, pre-defined endpoints. No arbitrary request capability.

Complete API v2 Coverage (39 Endpoint Groups)

The skill provides safe, specific functions for all major GHL operations. Each function maps to a specific, allowed API endpoint with validated parameters.

Reference Docs (load on demand)

For detailed endpoint paths, parameters, and examples for each group:

• references/contacts.md — Contact CRUD, search, tags, notes, tasks, bulk operations

• references/conversations.md — Messaging across all channels, recordings, transcriptions

• references/calendars.md — Calendar CRUD, free slots, appointments, groups, resources

• references/opportunities.md — Pipeline management, stages, status updates

• references/invoices-payments.md — Invoices, payments, orders, subscriptions, products

• references/locations-users.md — Location settings, custom fields/values, users, tags

• references/social-media.md — Social planner posts, accounts, OAuth connections

• references/forms-surveys-funnels.md — Forms, surveys, funnels, trigger links

• references/advanced.md — Custom objects, associations, snapshots, SaaS, Voice AI, blogs, courses

• references/troubleshooting.md — Common errors, rate limits, token rotation, debugging

Important Notes

• Private Integrations are required — the old Settings → API Keys method is deprecated/EOL

• Token rotation: Tokens don't auto-expire but GHL recommends 90-day rotation. Unused tokens auto-expire after 90 days inactivity

  • "Rotate and expire later" — new token generated, old token stays active for 7-day grace period
  • "Rotate and expire now" — old token invalidated immediately (use for compromised credentials)
  • You can edit scopes without regenerating the token

• OAuth tokens (marketplace apps only): Access tokens expire in 24 hours (86,399s); refresh tokens last up to 1 year

• Agency tokens can access sub-account data by passing locationId parameter

• Rate limits are per-resource — each sub-account independently gets 100/10s burst + 200K/day. SaaS endpoints: 10 req/sec global

• All list endpoints default to 20 records, max 100 per page via limit param

• Use cursor pagination with startAfter / startAfterId for large datasets

• Monitor rate limits via response headers: X-RateLimit-Limit-Daily, X-RateLimit-Daily-Remaining, X-RateLimit-Max, X-RateLimit-Remaining, X-RateLimit-Interval-Milliseconds

• $497 Agency Pro plan required for: SaaS Configurator, Snapshots, full agency management APIs

Webhook Events

50+ webhook event types for real-time notifications. Key events: ContactCreate, ContactDelete, ContactTagUpdate, InboundMessage, OutboundMessage, OpportunityCreate, OpportunityStageUpdate, OpportunityStatusUpdate, appointment events, payment events, form submission events. Webhooks continue firing even if access token expires. Config is per marketplace app. Docs: https://marketplace.gohighlevel.com/docs/webhook/WebhookIntegrationGuide

Official SDKs & Developer Resources

• Node.js: @gohighlevel/api-client (npm) — supports privateIntegrationToken config, auto 401 retry

• Python: gohighlevel-api-client (PyPI) — session storage, auto token refresh, webhook middleware

• PHP SDK also available

• All SDKs use apiVersion: '2021-07-28'

• OpenAPI Specs: https://github.com/GoHighLevel/highlevel-api-docs

• API Docs: https://marketplace.gohighlevel.com/docs/

• Developer Slack: https://developers.gohighlevel.com/join-dev-community

Built by Ty Shane

🌐 LaunchMyOpenClaw.com • 🌐 MyFBLeads.com ▶️ YouTube @10xcoldleads • 📘 Facebook • 💼 LinkedIn 📧 [email protected]

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