# instacart Authentication API

**Canonical:** https://apis.io/apis/instacart/instacart-authentication-api/  
**Provider:** instacart — https://apis.io/providers/instacart/  
**Base URL:** https://connect.instacart.com  
**Documentation:** https://docs.instacart.com/developer_platform_api/

instacart Authentication API is one of 10 APIs that [instacart](https://apis.io/providers/instacart/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification. Tagged areas include Authentication. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an AsyncAPI specification.

Endpoints for obtaining and managing OAuth 2.0 access tokens used to authenticate API requests.

## Machine-readable artifacts (7)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/instacart/refs/heads/main/openapi/instacart-authentication-api-openapi.yml
- **Documentation** — https://docs.instacart.com/developer_platform_api/
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/instacart/refs/heads/main/graphql/instacart-graphql.md
- **Documentation** — https://docs.instacart.com/connect/fulfillment/
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/instacart/refs/heads/main/asyncapi/instacart-connect-events-asyncapi.yml
- **Documentation** — https://docs.instacart.com/connect/post-checkout/
- **Documentation** — https://docs.instacart.com/catalog/catalog_api/overview/

## Other instacart APIs (9)

- [Instacart Shopping Widgets](https://apis.io/apis/instacart/shopping-widgets/)
- [instacart Chat API](https://apis.io/apis/instacart/instacart-chat-api/)
- [instacart Delivery API](https://apis.io/apis/instacart/instacart-delivery-api/)
- [instacart Items API](https://apis.io/apis/instacart/instacart-items-api/)
- [instacart Last Mile Delivery API](https://apis.io/apis/instacart/instacart-last-mile-delivery-api/)
- [instacart Orders API](https://apis.io/apis/instacart/instacart-orders-api/)
- [instacart Pickup API](https://apis.io/apis/instacart/instacart-pickup-api/)
- [instacart Products API](https://apis.io/apis/instacart/instacart-products-api/)
- [instacart Replacements API](https://apis.io/apis/instacart/instacart-replacements-api/)

## Tags

Authentication

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/instacart/instacart-authentication-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/instacart/.