Charlie HR API
Charlie HR documents a public REST API at charliehr.com/api_docs with OAuth 2.0 credentials generated by a Super Admin. The documented surface is read-only: GET endpoints for employees, teams, leave, salaries, and bank accounts. Most integrations flow through unified API vendors.
Frequently asked questions
Charlie HR scores A on the API Report Card. Charlie HR documents a public REST API at charliehr.com/api_docs with OAuth 2.0 credentials generated by a Super Admin. The documented surface is read-only: GET endpoints for employees, teams, leave, salaries, and bank accounts. Most integrations flow through unified API vendors.
Charlie HR has a workable official integration path. Most engineering teams can build against it directly. Open API: self-serve, documented, with SDKs
Charlie HR (commonly stylized 'CharlieHR' or just 'Charlie') is a London-based cloud HR platform purpose-built for UK small businesses and startups.
Vertical: Enterprise / HR / ERP (Sanity vertical mapping: Enterprise/HR/ERP; Airtable bucket: misc). Centralized employee records and HR data store. New hire onboarding workflows (digital paperwork, equipment checklists, welcome flows). Time off / leave management (request, approval, balance tracking, calendar sync).
Low-to-moderate, with strong UK SMB niche dominance. Charlie has ~10,000 customers and is one of the most-recognized UK-native HR brands in the sub-50-employee tier. Trustpilot, G2 (4.6/5), and Capterra (4.7/5) all show positive sentiment and an active review base.
HR system of record for UK SMBs: employee PII (name, DOB, address, NI number, bank details), employment history, salary records, leave allowances/balances, performance reviews, onboarding documents, right-to-work documentation.
Founded 2015-2016, ~10-11 years old as of 2026. Cloud-native from inception (not a re-platformed legacy product).
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.