Gainsight documents REST APIs for NXT and a separate PX API, plus an async CSV Bulk API, but there is no unified developer portal. Auth is tenant-specific access keys issued by an admin, with no OAuth. Rate limits are documented and tight: 100 sync calls per minute, 50,000 per day.
Gainsight scores D on the API Report Card. Gainsight documents REST APIs for NXT and a separate PX API, plus an async CSV Bulk API, but there is no unified developer portal. Auth is tenant-specific access keys issued by an admin, with no OAuth. Rate limits are documented and tight: 100 sync calls per minute, 50,000 per day.
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.
Gainsight is a customer success and product experience software company headquartered in San Rafael, CA, founded in 2009.
Vertical: Customer Success / Post-Sales Operations / Product Experience SaaS. Customers use Gainsight CS as the system of record for post-sales customer data: ingesting account/usage/support/billing data via connectors and APIs, computing customer health scores, generating CTAs (risk, expansion, lifecycle) routed to CSM playbooks, managing renewal forecasts and Success Plans, running NPS/CSAT programs, and reporting on retention/expansion metrics to executives.
8/10. Gainsight is widely regarded as the category-defining customer success platform and the de facto enterprise standard.
Gainsight holds the system of record for post-sales customer health: account-level revenue/ARR, renewal dates, contract metadata, usage telemetry, NPS/CSAT survey responses, CTA history, CSM activity logs, support ticket aggregates, and email/call engagement data.
Founded in 2009 (originally JBara Software, rebranded Gainsight 2013). Acquired by Vista Equity Partners in 2020 for ~$1.1B.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.