> ## Documentation Index > Fetch the complete documentation index at: https://docs.ofauth.com/llms.txt > Use this file to discover all available pages before exploring further. # Send a chat message > Send one direct message to one user. **Permission Required:** `messages:write` ## OpenAPI ````yaml https://api.ofauth.com/openapi.json post /v2/access/chats/:userId/messages openapi: 3.1.0 info: title: OFAuth API version: 1.0.0 description: >- OFAuth API including Account, Connections, Link, Access, Dynamic Rules, Vault+, and Realtime webhook contracts contact: email: support@ofauth.com url: https://ofauth.com/ servers: - url: https://api.ofauth.com security: - ApiKey: [] tags: - name: Account description: Account management endpoints. - name: Connections description: Connection management endpoints. - name: Link description: Link authentication and session endpoints. - name: Access description: All Access related endpoints. - name: Analytics description: 'Access: charts, tops, and performance metrics.' - name: Earnings description: 'Access: earnings charts, transactions, and chargebacks.' - name: Messages description: 'Access: messaging, chats, queue, and mass messaging.' - name: Posts description: 'Access: create, edit, list, and manage posts.' - name: Promotions description: 'Access: promotions, trials, and bundles.' - name: Users description: 'Access: user profiles, subscriptions, and actions.' - name: Vault description: 'Access: vault folders, media, and management.' - name: Upload description: 'Access: media upload and processing.' - name: Self description: 'Access: authenticated account details and settings.' - name: Stories description: 'Access: stories listing and management.' - name: Subscriptions description: 'Access: subscription offers, discounts, and management.' - name: Realtime description: >- Realtime webhook delivery contracts, including relayed OnlyFans websocket events. - name: Dynamic Rules description: Dynamic signing rules operations. - name: Vault+ description: Vault+ caching and management. externalDocs: description: OFAuth Developer Documentation url: https://docs.ofauth.com paths: /v2/access/chats/:userId/messages: post: tags: - Messages summary: Send a chat message description: |- Send one direct message to one user. **Permission Required:** `messages:write` parameters: - schema: type: string pattern: ^\d+$ required: true name: userId in: path requestBody: content: application/json: schema: type: object properties: isForwardedMessage: type: boolean nullable: true default: false description: Whether this is a forwarded message text: type: string maxLength: 10000 default: '' description: >- Text content. Supports markdown by default. See [Text Formatting Guide](/guides/how-to/text-formatting). replyToMessageId: type: string nullable: true minLength: 1 description: Reply to an existing chat message mediaItems: type: array items: anyOf: - type: integer minimum: 0 exclusiveMinimum: true description: OnlyFans media ID - type: string minLength: 1 default: [] description: >- Media references to attach. Accepts vault media IDs, upload references (mediaUploadId), or http(s) URLs. See [mediaItems reference](/guides/media-items). isLockedText: type: boolean nullable: true default: false description: Whether text is locked behind paywall (defaults to false). price: type: number nullable: true minimum: 0 maximum: 200 default: 0 description: Price to unlock message content (0 for free) previewMediaCount: type: integer nullable: true minimum: 0 default: 0 description: >- How many items in mediaItems should be previews. Uses the first N items from left to right. releaseForms: type: object properties: users: type: array items: type: integer minimum: 0 exclusiveMinimum: true description: OnlyFans user ID default: [] description: Users to add to release form partners: type: array items: type: integer minimum: 0 exclusiveMinimum: true description: OnlyFans user ID default: [] description: Partners to add to release form guests: type: array items: type: integer minimum: 0 exclusiveMinimum: true description: OnlyFans user ID default: [] description: Guests to add to release form description: Release form participants userTags: type: array items: type: integer minimum: 0 exclusiveMinimum: true description: OnlyFans user ID default: [] description: Users to tag isMarkdown: type: boolean nullable: true default: true description: >- Whether to parse text as markdown (default: true). See [Text Formatting Guide](/guides/how-to/text-formatting). responses: '200': description: Successful response content: application/json: schema: type: object properties: id: type: number text: type: string createdAt: type: string media: type: array items: type: object properties: id: type: number type: type: string enum: - photo - video - gif - audio convertedToVideo: type: boolean canView: type: boolean hasError: type: boolean createdAt: type: string isReady: type: boolean duration: type: number releaseForms: type: array items: type: object properties: id: type: number name: type: string partnerSource: type: string type: type: string user: type: object properties: view: type: string id: type: number name: type: string username: type: string isVerified: type: boolean avatar: type: string avatarThumbs: type: object properties: c50: type: string c144: type: string required: - c50 - c144 ivStatus: type: string isFromGuest: type: boolean required: - view - id - name - username - isVerified - avatar - avatarThumbs - ivStatus - isFromGuest required: - id - name - partnerSource - type hasCustomPreview: type: boolean videoSources: type: object properties: '240': type: string nullable: true '720': type: string nullable: true files: type: object properties: full: type: object properties: url: type: string width: type: number height: type: number size: type: number sources: type: array items: type: object properties: url: type: string width: type: number height: type: number type: type: string required: - url required: - url - sources thumb: type: object properties: url: type: string width: type: number height: type: number size: type: number required: - url preview: type: object properties: url: type: string width: type: number height: type: number size: type: number options: type: array items: type: object properties: url: type: string width: type: number height: type: number type: type: string required: - url required: - url - options squarePreview: type: object properties: url: type: string width: type: number height: type: number size: type: number required: - url required: - full required: - id - type - convertedToVideo - canView - hasError - createdAt - isReady - releaseForms mediaCount: type: number isMediaReady: type: boolean price: anyOf: - type: number - type: string isFree: type: boolean lockedText: type: boolean queueId: type: number cancelSeconds: type: number required: - id '400': description: Bad Request '401': description: Unauthorized '403': description: Forbidden '429': description: Rate Limit Exceeded '500': description: Internal Server Error '502': description: Bad Gateway security: - ApiKey: [] ConnectionId: [] components: securitySchemes: ApiKey: type: apiKey name: apiKey in: header description: >- Your OFAuth [API key](/quickstart#2-copy-your-api-key) for authenticating requests. ConnectionId: type: apiKey name: x-connection-id in: header description: >- Requires a [connection](/guides/connections) via the x-connection-id header. ````