# Getting Started

> How to build against Snapdocs: authentication, environments, and webhooks, with each product’s differences called out.

## OpenAPI specs
- [Token — eClose / QC](https://developers.snapdocs.com/content/platform/specs/token-eclose-qc-cdb.json)
- [Token — eVault](https://developers.snapdocs.com/content/platform/specs/token-evault.json)
- [Subscriptions — eClose scopes](https://developers.snapdocs.com/content/platform/specs/subscriptions-eclose.json)
- [Subscriptions — Quality Control scopes](https://developers.snapdocs.com/content/platform/specs/subscriptions-qc.json)
- [Company Users](https://developers.snapdocs.com/content/platform/specs/company-users.json)

## Start Here
- [Building with Snapdocs](https://developers.snapdocs.com/content/platform/guides/start-here/what_you_can_build.md)
- [Integration architecture](https://developers.snapdocs.com/content/platform/guides/start-here/integration_architecture.md)
- [Who builds with Snapdocs](https://developers.snapdocs.com/content/platform/guides/start-here/who_builds_with_snapdocs.md)
- [How these docs work](https://developers.snapdocs.com/content/platform/guides/start-here/how_these_docs_work.md)
- [Plan your integration](https://developers.snapdocs.com/content/platform/guides/start-here/plan_your_integration.md)
- [Building with an AI assistant](https://developers.snapdocs.com/content/platform/guides/start-here/build_with_ai.md)

## Environments
- [Environments and base URLs](https://developers.snapdocs.com/content/platform/guides/environments/environments.md)

## Authentication
- [How authentication works](https://developers.snapdocs.com/content/platform/guides/authentication/authentication_overview.md)
- [OAuth 2.0 client credentials](https://developers.snapdocs.com/content/platform/guides/authentication/oauth2_client_credentials.md)
- [Cache and reuse bearer tokens](https://developers.snapdocs.com/content/platform/guides/authentication/bearer_token_caching.md)

## Webhooks
- [How webhooks work](https://developers.snapdocs.com/content/platform/guides/webhooks/webhooks_overview.md)
- [Subscriptions API](https://developers.snapdocs.com/content/platform/guides/webhooks/subscriptions_api.md)
- [Webhook security](https://developers.snapdocs.com/content/platform/guides/webhooks/webhook_security.md)

## Testing & Certification
- [Test your integration](https://developers.snapdocs.com/content/platform/guides/testing/test_your_integration.md)
- [Certification and go-live](https://developers.snapdocs.com/content/platform/guides/testing/certification_and_go_live.md)

## User Management
- [Company Users Endpoint](https://developers.snapdocs.com/content/platform/guides/user-management/company_users_endpoint.md)