- component: Rate limit
  link: middleware-rate-limit
  state: Stable
  version: v1
  since: "1.11"
  description: Restricts the maximum number of allowed HTTP requests per second
- component: OAuth2 Authorization Grant flow
  link: /reference/components-reference/supported-middleware/middleware-oauth2
  state: Alpha
  version: v1
  description: Enables the [OAuth2 Authorization Grant flow](https://tools.ietf.org/html/rfc6749#section-4.1) on a Web API
- component: OAuth2 Client Credentials Grant flow
  link: /reference/components-reference/supported-middleware/middleware-oauth2clientcredentials
  state: Alpha
  version: v1
  description: Enables the [OAuth2 Client Credentials Grant flow](https://tools.ietf.org/html/rfc6749#section-4.4) on a Web API
- component: OpenID Connect
  link: /reference/components-reference/supported-middleware/middleware-bearer
  state: Stable
  since: "1.11"
  version: v1
  description: Verifies a [Bearer Token](https://tools.ietf.org/html/rfc6750) using [OpenID Connect](https://openid.net/connect/) on a Web API
- component: Rego/OPA Policies
  link: /reference/components-reference/supported-middleware/middleware-opa
  state: Alpha
  version: v1
  description: Applies [Rego/OPA Policies](https://www.openpolicyagent.org/) to incoming Dapr HTTP requests
- component: Sentinel
  link: /reference/components-reference/supported-middleware/middleware-sentinel
  state: Alpha
  version: v1
  description: Use Sentinel middleware to guarantee the reliability and resiliency of your application
- component: RouterChecker
  link: /reference/components-reference/supported-middleware/middleware-routerchecker
  state: Alpha
  version: v1
  description: Use RouterChecker middleware to block invalid http request routing
- component: Router Alias
  link: /reference/components-reference/supported-middleware/middleware-routeralias
  state: Alpha
  version: v1
  description: Use Router Alias to map arbitrary HTTP routes to valid Dapr API endpoints
- component: Uppercase
  link: /reference/components-reference/supported-middleware/middleware-uppercase
  state: Stable
  version: v1
  description: Converts the body of the request to uppercase letters (demo)
- component: Wasm
  link: /reference/components-reference/supported-middleware/middleware-wasm
  state: Alpha
  version: v1
  description: Use Wasm middleware in your HTTP pipeline