API Platform
Versioned REST API with idempotency keys, standard error envelopes, pagination, rate limiting, and a webhook firehose for every data event.
Enterprise BPOs run integrations — payroll exports, WFM forecast feeds, CCaaS webhooks, BI tools. FrontLine ships a versioned public API as a first-class product, not an afterthought. Every endpoint follows the same contract rules, every mutation accepts an idempotency key, and every data event can be subscribed to via webhook.
Versioned, documented, and treated as a first-class product
All endpoints sit under `/api/v1/` with semantic versioning and a deprecation policy. Mutations require an `Idempotency-Key` header — repeated requests with the same key return the same result. Errors return a standard envelope with `code`, `message`, `request_id`, and structured `details`. Pagination uses cursor-based tokens for stable iteration. Rate limits are tenant-scoped and surfaced via `X-RateLimit-*` headers. Webhooks are signed with HMAC-SHA256, retried with exponential backoff, and replayable from a cursor.
What's covered out of the box
Audit-ready artifacts your reviewers can lean on
- OpenAPI 3.1 published spec available to all customers
- Semantic versioning with 12-month deprecation notice
- Signed webhooks (HMAC-SHA256) with replay protection
- SOC 2 Type II — change management for API contracts
What security and compliance reviewers actually ask
Is there a published API spec?+
How do you handle breaking changes?+
Can we subscribe to data events?+
What are the rate limits?+
Run this past your security team
We share security overviews, RLS policy DDL, audit-event schemas, and SOC 2 progress on request. Book a 30-minute security review with the founders.