15Five Public API
RESTful API for reading and modifying 15Five account data, including users, groups, objectives (OKRs), check-ins, review cycles, and performance data. Supports bulk list fetches with pagination and uses API key authentication via HTTP Basic Auth.
Documentation
Other Resources
HelpArticle
https://success.15five.com/hc/en-us/articles/50988142563483-15Five-Public-API-Supported-Features-Limits-and-Access-Rules
GraphQL
https://raw.githubusercontent.com/api-evangelist/15five/refs/heads/main/graphql/15five-graphql.md
APIsJSON
https://raw.githubusercontent.com/api-evangelist/15five/refs/heads/main/apis.yml