--- title: Overview url: https://developers.wpengine.com/docs/ai/api/reference/ image: https://developers.wpengine.com/og/docs/ai/api/reference.png --- # Overview ## AI Gateway 0.15 An OpenAI-compatible API gateway that routes chat completion and image generation requests to multiple upstream AI providers (OpenAI, Google Gemini, Anthropic) based on the model prefix in the request. [Download the OpenAPI spec](https://api.ai.wpengine.com/v1/openapi.yaml) to import it into Postman, Bruno, or a client generator. Information - OpenAPI version: `3.0.3` ## Operations GET [/v1/models](https://developers.wpengine.com/docs/ai/api/reference/operations/listmodels/) GET [/v1/models/{owner}/{model}/schema](https://developers.wpengine.com/docs/ai/api/reference/operations/getmodelschema/) POST [/v1/chat/completions](https://developers.wpengine.com/docs/ai/api/reference/operations/createchatcompletion/) POST [/v1/messages](https://developers.wpengine.com/docs/ai/api/reference/operations/createmessage/) POST [/v1/messages/count_tokens](https://developers.wpengine.com/docs/ai/api/reference/operations/countmessagetokens/) POST [/v1/images/generations](https://developers.wpengine.com/docs/ai/api/reference/operations/createimagegeneration/) POST [/v1/images/alt-text](https://developers.wpengine.com/docs/ai/api/reference/operations/createimagealttext/) POST [/v1/content/summarize](https://developers.wpengine.com/docs/ai/api/reference/operations/summarizecontent/) POST [/v1/content/suggest-taxonomy](https://developers.wpengine.com/docs/ai/api/reference/operations/suggesttaxonomy/) POST [/v1/audio/speech](https://developers.wpengine.com/docs/ai/api/reference/operations/createspeech/) POST [/v1/audio/transcriptions](https://developers.wpengine.com/docs/ai/api/reference/operations/createtranscription/) GET [/v1/models](https://developers.wpengine.com/docs/ai/api/reference/operations/listmodels/) GET [/v1/models/{owner}/{model}/schema](https://developers.wpengine.com/docs/ai/api/reference/operations/getmodelschema/) POST [/v1/chat/completions](https://developers.wpengine.com/docs/ai/api/reference/operations/createchatcompletion/) POST [/v1/messages](https://developers.wpengine.com/docs/ai/api/reference/operations/createmessage/) POST [/v1/messages/count_tokens](https://developers.wpengine.com/docs/ai/api/reference/operations/countmessagetokens/) POST [/v1/images/generations](https://developers.wpengine.com/docs/ai/api/reference/operations/createimagegeneration/) POST [/v1/images/alt-text](https://developers.wpengine.com/docs/ai/api/reference/operations/createimagealttext/) POST [/v1/content/summarize](https://developers.wpengine.com/docs/ai/api/reference/operations/summarizecontent/) POST [/v1/content/suggest-taxonomy](https://developers.wpengine.com/docs/ai/api/reference/operations/suggesttaxonomy/) POST [/v1/audio/speech](https://developers.wpengine.com/docs/ai/api/reference/operations/createspeech/) POST [/v1/audio/transcriptions](https://developers.wpengine.com/docs/ai/api/reference/operations/createtranscription/) GET [/v1/analytics](https://developers.wpengine.com/docs/ai/api/reference/operations/getanalytics/) GET [/v1/credits](https://developers.wpengine.com/docs/ai/api/reference/operations/getcredits/) POST [/v1/sites](https://developers.wpengine.com/docs/ai/api/reference/operations/registersite/) GET [/v1/sites/{client_id}](https://developers.wpengine.com/docs/ai/api/reference/operations/getsite/) DELETE [/v1/sites/{client_id}](https://developers.wpengine.com/docs/ai/api/reference/operations/deletesite/) PATCH [/v1/sites/{client_id}](https://developers.wpengine.com/docs/ai/api/reference/operations/updatesiteprimarycollection/) POST [/v1/sites/{client_id}/heartbeat](https://developers.wpengine.com/docs/ai/api/reference/operations/heartbeatsite/) GET [/v1/mcp](https://developers.wpengine.com/docs/ai/api/reference/operations/mcpstreamablehttpstream/) POST [/v1/mcp](https://developers.wpengine.com/docs/ai/api/reference/operations/mcpstreamablehttp/) DELETE [/v1/mcp](https://developers.wpengine.com/docs/ai/api/reference/operations/mcpstreamablehttpterminate/) GET [/.well-known/oauth-protected-resource/v1/mcp](https://developers.wpengine.com/docs/ai/api/reference/operations/mcpprotectedresourcemetadata/) GET [/v1/kb/collections](https://developers.wpengine.com/docs/ai/api/reference/operations/listcollections/) POST [/v1/kb/collections](https://developers.wpengine.com/docs/ai/api/reference/operations/createcollection/) GET [/v1/kb/collections/{id}](https://developers.wpengine.com/docs/ai/api/reference/operations/getcollection/) DELETE [/v1/kb/collections/{id}](https://developers.wpengine.com/docs/ai/api/reference/operations/deletecollection/) PATCH [/v1/kb/collections/{id}](https://developers.wpengine.com/docs/ai/api/reference/operations/updatecollection/) POST [/v1/kb/collections/{id}/documents](https://developers.wpengine.com/docs/ai/api/reference/operations/indexdocument/) POST [/v1/kb/collections/{id}/documents/bulk](https://developers.wpengine.com/docs/ai/api/reference/operations/bulkindexdocuments/) GET [/v1/kb/collections/{id}/documents/{documentID}](https://developers.wpengine.com/docs/ai/api/reference/operations/getdocument/) DELETE [/v1/kb/collections/{id}/documents/{documentID}](https://developers.wpengine.com/docs/ai/api/reference/operations/deletedocument/) POST [/v1/kb/collections/{id}/search](https://developers.wpengine.com/docs/ai/api/reference/operations/searchcollection/) GET [/v1/agents](https://developers.wpengine.com/docs/ai/api/reference/operations/listagents/) POST [/v1/agents](https://developers.wpengine.com/docs/ai/api/reference/operations/createagent/) GET [/v1/agents/{agent_id}](https://developers.wpengine.com/docs/ai/api/reference/operations/getagent/) DELETE [/v1/agents/{agent_id}](https://developers.wpengine.com/docs/ai/api/reference/operations/deleteagent/) PATCH [/v1/agents/{agent_id}](https://developers.wpengine.com/docs/ai/api/reference/operations/updateagent/) GET [/v1/sessions](https://developers.wpengine.com/docs/ai/api/reference/operations/listsessions/) POST [/v1/sessions](https://developers.wpengine.com/docs/ai/api/reference/operations/createsession/) GET [/v1/sessions/{session_id}](https://developers.wpengine.com/docs/ai/api/reference/operations/getsession/) DELETE [/v1/sessions/{session_id}](https://developers.wpengine.com/docs/ai/api/reference/operations/deletesession/) PATCH [/v1/sessions/{session_id}](https://developers.wpengine.com/docs/ai/api/reference/operations/updatesession/) POST [/v1/sessions/{session_id}/archive](https://developers.wpengine.com/docs/ai/api/reference/operations/archivesession/) GET [/v1/sessions/{session_id}/events](https://developers.wpengine.com/docs/ai/api/reference/operations/listsessionevents/) POST [/v1/sessions/{session_id}/events](https://developers.wpengine.com/docs/ai/api/reference/operations/sendsessionevents/) GET [/v1/sessions/{session_id}/responses/{response_event_id}/feedback](https://developers.wpengine.com/docs/ai/api/reference/operations/getresponsefeedback/) POST [/v1/sessions/{session_id}/responses/{response_event_id}/feedback](https://developers.wpengine.com/docs/ai/api/reference/operations/createresponsefeedback/) ## Authentication ### bearerAuth Accepts three token types: (1) JWT access token verified against the configured JWKS endpoint; (2) WP Engine API key (prefixed “wpe\_”); (3) browser session token (prefixed “wpbs\_”) — short-lived tokens minted for browser clients via POST /v1/browser/client_secret. Per-route permission checks apply to API keys and browser session tokens; some management endpoints are JWT-only, while agents, sessions, and events also accept an API key scoped to a project. A WordPress site access token must carry the scope “urn:wpengine:wordpress”; the pre-URN spelling “wpengine:wordpress” is also accepted, so sites registered before the rename continue to work without re-registering. A token carrying neither is rejected with 403. **Security scheme type: **http ### anthropicApiKey WP Engine API key sent via the Anthropic SDK convention. Equivalent to presenting the same key as a bearer token. Supported only on the /v1/messages endpoints. **Security scheme type: **apiKey **Header parameter name: **x-api-key ## Was this helpful? Thanks for the feedback! ```json {"@context":"https://schema.org","@graph":[{"@type":"WebSite","@id":"https://developers.wpengine.com/#website","name":"WP Engine Product Documentation","url":"https://developers.wpengine.com/","description":"Resources for developing, deploying, and scaling on WP Engine.","inLanguage":"en-US","keywords":["API documentation","product documentation","headless WordPress","managed WordPress hosting"],"publisher":{"@id":"https://wpengine.com/#organization"}}]} ```