# Gigs > Gigs is the operating system for embedded telecom: an API and platform that lets any technology brand launch and operate mobile phone and data plans (eSIM and physical SIM) without becoming a mobile network operator. The Gigs Core API manages projects, plans, users, subscriptions, SIMs, devices, number portings, add-ons, usage, and vouchers, with Bearer API-key auth, cursor pagination, structured error objects, and Svix-delivered webhooks. ## APIs - [Gigs Core API — Introduction](https://developers.gigs.com/api/introduction): Getting started with the REST API (base https://api.gigs.com). - [Authentication](https://developers.gigs.com/api/authentication): Project-scoped Bearer API keys. - [Pagination](https://developers.gigs.com/api/pagination): Cursor pagination with after/before/limit. - [Error handling](https://developers.gigs.com/api/error-handling): Error object shape and principles. - [Error codes](https://developers.gigs.com/api/error-codes): Machine-readable error/decline code registry. - [Events and Webhooks](https://developers.gigs.com/docs/core/events/events-webhooks): com.gigs.* events via Svix. ## Guides - [Create a subscription](https://developers.gigs.com/docs/create-a-subscription): Activate an eSIM subscription in a few API calls. - [Activate physical SIMs](https://developers.gigs.com/docs/core/activate-physical-sims): SIM activation flow. ## Products - [Connect](https://gigs.com/connect): Prebuilt embeddable checkout. - [Payments](https://gigs.com/payments): Integrated billing. - [Operator](https://gigs.com/operator): Automation layer. - [Dashboard](https://dashboard.gigs.com): Operations and support console. ## Operations - [Status page](https://status.gigs.com) - [Trust center](https://trust.gigs.com) - [Security policy](https://gigs.com/security/vulnerability-disclosure) - [security.txt](https://gigs.com/.well-known/security.txt) ## Artifacts (API Evangelist enrichment) - Authentication: authentication/gigs-authentication.yml - Error catalog: errors/gigs-error-codes.yml - Decline codes: errors/gigs-decline-codes.yml - Conventions: conventions/gigs-conventions.yml - Data model: data-model/gigs-data-model.yml - Webhooks: asyncapi/gigs-events-webhooks.yml - MCP (candidate): mcp/gigs-mcp.yml - Conformance: conformance/gigs-conformance.yml - Lifecycle: lifecycle/gigs-lifecycle.yml - Sandbox: sandbox/gigs-sandbox.yml - Components: components/gigs-components.yml