> ## Documentation Index > Fetch the complete documentation index at: https://openphone-dev.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Create a call > Place a call from one of your Quo numbers, following the instructions in the prompt. ## OpenAPI ````yaml https://openphone-public-api-dev.s3.us-west-2.amazonaws.com/public/openphone-public-api-v1-dev.json post /v1/calls openapi: 3.1.0 info: title: Quo Public API version: 1.0.0 description: API for connecting with Quo. contact: name: Quo Support email: support@quo.com url: https://support.quo.com/ termsOfService: https://www.quo.com/terms servers: - description: Development server url: https://dev-public-api.openphone.dev security: - apiKey: [] tags: - description: Operations related to calls name: Calls - description: >- Operations related to call summaries, including AI-generated summaries and Sona voice assistant summaries name: Call Summaries - description: >- Operations related to call transcripts, including AI-generated transcripts and Sona voice assistant transcripts name: Call Transcripts - description: Operations related to contacts name: Contacts - description: Operations related to contact shares name: Contact Shares - description: Operations related to contact notes name: Contact Notes - description: Operations related to contact properties name: Contact Properties - description: Operations related to conversations name: Conversations - description: Operations related to workspace invitations name: Invites - description: Operations related to text messages name: Messages - description: Operations related to the organization name: Organization - description: Operations related to phone numbers name: Phone Numbers - description: Operations related to users name: Users - description: Operations related to webhooks name: Webhooks - description: >- Operations related to webhook events, including delivery history and test events name: Webhook Events paths: /v1/calls: post: tags: - Calls summary: Create a call description: >- Place a call from one of your Quo numbers, following the instructions in the prompt. operationId: createCall_v1 parameters: [] requestBody: required: true content: application/json: schema: type: object required: - prompt - number - phoneNumberId properties: prompt: type: string minLength: 1 description: Instructions for the call. examples: - Confirm the appointment booked for tomorrow at 9am. example: Confirm the appointment booked for tomorrow at 9am. number: description: The phone number to call, in E.164 format. examples: - '+15555555555' example: '+15555555555' type: string pattern: ^\+[1-9]\d{1,14}$ phoneNumberId: description: The Quo phone number the call is placed from. examples: - PN123abc example: PN123abc type: string pattern: ^PN(.*)$ responses: '202': description: Accepted content: application/json: schema: type: object required: - data properties: data: type: object required: - id properties: id: description: The unique identifier of the call. examples: - AC3700e624eca547eb9f749a06f2eb1 example: AC3700e624eca547eb9f749a06f2eb1 type: string pattern: ^AC(.*)$ '400': description: Too Many Participants content: application/json: schema: type: object required: - message - code - status - docs - title - description properties: message: type: string code: type: string const: '0101400' status: type: number const: 400 docs: type: string const: https://quo.com/docs title: type: string const: Too Many Participants trace: type: string errors: type: array items: type: object required: - path - message - schema properties: path: type: string message: type: string value: {} schema: type: object required: - type properties: type: type: string description: type: string const: Too Many Participants '401': description: Unauthorized content: application/json: schema: type: object required: - message - code - status - docs - title properties: message: type: string code: type: string const: '0100401' status: type: number const: 401 docs: type: string const: https://quo.com/docs title: type: string const: Unauthorized trace: type: string errors: type: array items: type: object required: - path - message - schema properties: path: type: string message: type: string value: {} schema: type: object required: - type properties: type: type: string '403': description: Not Phone Number User content: application/json: schema: type: object required: - message - code - status - docs - title - description properties: message: type: string code: type: string const: '0101403' status: type: number const: 403 docs: type: string const: https://quo.com/docs title: type: string const: Not Phone Number User trace: type: string errors: type: array items: type: object required: - path - message - schema properties: path: type: string message: type: string value: {} schema: type: object required: - type properties: type: type: string description: type: string const: Not Phone Number User '404': description: Not Found content: application/json: schema: type: object required: - message - code - status - docs - title properties: message: type: string code: type: string const: '0100404' status: type: number const: 404 docs: type: string const: https://quo.com/docs title: type: string const: Not Found trace: type: string errors: type: array items: type: object required: - path - message - schema properties: path: type: string message: type: string value: {} schema: type: object required: - type properties: type: type: string '500': description: Unknown Error content: application/json: schema: type: object required: - message - code - status - docs - title properties: message: type: string code: type: string const: '0101500' status: type: number const: 500 docs: type: string const: https://quo.com/docs title: type: string const: Unknown trace: type: string errors: type: array items: type: object required: - path - message - schema properties: path: type: string message: type: string value: {} schema: type: object required: - type properties: type: type: string security: - apiKey: [] components: securitySchemes: apiKey: in: header name: Authorization type: apiKey ````