GoHighLevel API
HighLevel exposes a self-serve REST API v2 with OAuth 2.0, webhooks, and coverage from contacts to payments. Developers register a Marketplace App or generate a Private Integration Token per sub-account. API v1 is end-of-support, and its deprecation forced mass rebuilds.
Frequently asked questions
GoHighLevel scores D on Supergood's API Report Card. HighLevel exposes a self-serve REST API v2 with OAuth 2.0, webhooks, and coverage from contacts to payments. Developers register a Marketplace App or generate a Private Integration Token per sub-account. API v1 is end-of-support, and its deprecation forced mass rebuilds.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly. Site terms may apply to any integration approach, and how they apply is a determination each team makes for itself.
GoHighLevel (legal name HighLevel) is an all-in-one, white-label business operating system built primarily for digital marketing agencies and the SMBs those agencies resell to.
Vertical: All-in-one agency CRM / marketing automation / white-label SaaS (horizontal SaaS sold primarily through an agency reseller channel). An agency creates an 'Agency Account' and provisions a sub-account per client.
HighLevel reports 1M+ businesses powered and ~$82.7M ARR (bootstrapped, no outside funding) per public profiles, with employee headcount cited between ~785 and 2,000+ depending on source.
Yes, for an agency or SMB that runs lifecycle marketing and sales on it, GoHighLevel is the system of record for the entire customer engagement stack: the contact database with custom fields and tags, the unified conversation history across SMS/email/calls/Messenger/Instagram/WhatsApp, every appointment booked, every opportunity/deal and pipeline movement, every workflow automation entry and exit, AI agent transcripts, payment and invoice records, membership and course progress, form/survey submissions, review request and reply history, call recordings and tracking metadata, and, for SaaS Mode agencies, the entire end-customer billing relationship.
Founded April 2018 in Dallas, TX by Shaun Clark, Robin Alex, and Varun Vairavan. Bootstrapped, no VC or PE funding raised, and grew to ~$82.7M ARR per GetLatka, with public claims of 1M+ businesses powered and 1,500-2,000+ employees by end-2025.
Per-app daily rate limit of 200,000 requests per resource (location/company) and burst limit of 100 requests / 10 seconds breaks high-volume sync and AI agent use cases. OAuth access tokens expire every 24 hours and refresh tokens rotate, forcing constant token-management plumbing, community complaints cite 6 hours to do in v2 what took 10 minutes in v1. Full sourced list under Sources below.
Common alternatives include HubSpot, ActiveCampaign, Keap (Infusionsoft), ClickFunnels, Kartra, Vendasta. Graded alternatives appear under "More from the report card" below.
Supergood's grades measure one thing: can a customer's engineering team get their own data out programmatically? Supergood checks six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and rolls them into a letter grade. Supergood re-verifies grades, and they only move on evidence.
GoHighLevel scores GOOD on MCP availability. HighLevel publishes an official MCP server hosted at services.leadconnectorhq.com with OAuth and private integration token authentication. Connection instructions and the supported operations across contacts, conversations, opportunities, calendars, and payments are documented in the HighLevel marketplace developer docs.
Yes. GoHighLevel publishes an official MCP server, so MCP clients like Claude, Cursor, and Codex can connect to it directly. Setup instructions are in the vendor's documentation.