Gridspace Conversations API

openapi: 3.2.0
info:
  title: Guava Voice Agent REST Conversations API
  description: The Guava (formerly Gridspace) REST API lets you manage calls, conversations, SMS messages, and account resources directly over HTTP — no SDK required. Guava is a voice AI platform for regulated industries (healthcare, banking, insurance, BPOs, government). This specification was reconstructed faithfully from Guava's published REST API reference at https://goguava.ai/docs/api-overview; every path, parameter, and response field is documented by the provider.
  version: v1
  contact:
    name: Guava Support
    email: hi@goguava.ai
    url: https://goguava.ai/docs/api-overview
  x-logo:
    url: https://goguava.ai
servers:
- url: https://api.goguava.ai/v1
  description: Production
security:
- bearerAuth: []
tags:
- name: Conversations
  description: Retrieve, inspect, and delete conversation data for completed calls.
paths:
  /conversations:
    get:
      operationId: listConversations
      summary: List conversations
      description: List your organization's conversations, newest first. Cursor paginated.
      tags:
      - Conversations
      parameters:
      - name: from_number
        in: query
        required: false
        schema:
          type: string
        description: Only return calls placed from this number (E.164).
      - name: to_number
        in: query
        required: false
        schema:
          type: string
        description: Only return calls placed to this number (E.164).
      - name: direction
        in: query
        required: false
        schema:
          type: string
          enum:
          - inbound
          - outbound
          - all
        description: Filter by call direction from the perspective of your agent.
      - name: date_from
        in: query
        required: false
        schema:
          type: string
          format: date-time
        description: Only return calls at or after this time (ISO 8601).
      - name: date_to
        in: query
        required: false
        schema:
          type: string
          format: date-time
        description: Only return calls at or before this time (ISO 8601).
      - name: campaign_id
        in: query
        required: false
        schema:
          type: string
        description: Only return calls placed by this outbound campaign.
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 50
        description: Maximum number of conversations to return.
      - name: after
        in: query
        required: false
        schema:
          type: string
        description: Pagination cursor — pass the next_cursor from the previous response.
      responses:
        '200':
          description: A page of conversations.
          content:
            application/json:
              schema:
                type: object
                properties:
                  conversations:
                    type: array
                    items:
                      $ref: '#/components/schemas/Conversation'
                  next_cursor:
                    type: string
                    nullable: true
                  has_more:
                    type: boolean
        '400':
          description: Invalid limit, after cursor, campaign_id, or date value.
        '401':
          description: Invalid authentication.
        '422':
          description: from_number or to_number is not a valid E.164 number.
  /conversations/{call_id}:
    get:
      operationId: getConversation
      summary: Get conversation details
      description: Retrieve metadata about a single conversation.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/CallId'
      responses:
        '200':
          description: The conversation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Conversation'
        '401':
          description: Invalid authentication.
        '404':
          description: The call with this ID does not exist.
    delete:
      operationId: deleteConversation
      summary: Delete a conversation
      description: Permanently delete a conversation and its associated data.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/CallId'
      responses:
        '204':
          description: Deleted (empty body).
        '401':
          description: Invalid authentication.
        '404':
          description: The call with this ID does not exist.
  /conversations/{call_id}/transcript:
    get:
      operationId: getConversationTranscript
      summary: Get conversation transcript
      description: Download the transcript for a conversation as a list of turns.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/CallId'
      responses:
        '200':
          description: The transcript turns.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TranscriptTurn'
        '401':
          description: Invalid authentication.
        '404':
          description: The call with this ID does not exist.
  /conversations/{call_id}/recording:
    get:
      operationId: getConversationRecording
      summary: Get conversation recording
      description: Download the audio recording for a conversation in WAV format.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/CallId'
      responses:
        '200':
          description: WAV audio file.
          content:
            audio/wav:
              schema:
                type: string
                format: binary
        '401':
          description: Invalid authentication.
        '404':
          description: The call with this ID does not exist.
components:
  parameters:
    CallId:
      name: call_id
      in: path
      required: true
      schema:
        type: string
      description: ID of the call.
  schemas:
    TranscriptTurn:
      type: object
      properties:
        speaker:
          type: string
          enum:
          - HUMAN
          - AGENT
        text:
          type: string
        offset_ms:
          type: integer
          description: Milliseconds into the call when this turn began.
    Conversation:
      type: object
      properties:
        id:
          type: string
          description: Unique ID of the conversation.
        call_id:
          type: string
          description: ID of the call.
        ts:
          type: string
          format: date-time
          description: Date of the call (ISO 8601).
        direction:
          type: string
          enum:
          - inbound
          - outbound
        from_number:
          type: string
          description: Phone number that initiated the call.
        to_number:
          type: string
          description: Phone number that received the call.
        duration_sec:
          type: integer
          nullable: true
          description: How long the call lasted, in seconds. Null until the call completes.
        campaign_id:
          type: string
          nullable: true
          description: Outbound campaign that initiated this call, if applicable.
        termination_reason:
          type: string
          nullable: true
          description: How the call ended (e.g. "user-hangup"), if known.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Include your API key as a bearer token: Authorization: Bearer YOUR_GUAVA_API_KEY. API keys are created on the app.goguava.ai dashboard and are prefixed "gva-".'