> ## Documentation Index
> Fetch the complete documentation index at: https://deepline.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Estimate one saved or prebuilt Play

> Returns reference and costEstimate using workspace pricing, plus observedCost for prebuilts. Reads only the selected Play and its bounded successful-run cost history. Does not start a run.

Authentication: workspace API key in `Authorization: Bearer <key>`.

URL-encode path values, including `/` characters inside Play references and run IDs.

## Errors

| Status | Meaning |
| - | - |
| 401 | The request conflicts with current state or a retained request identity. |
| 404 | The request conflicts with current state or a retained request identity. |
| 500 | The request conflicts with current state or a retained request identity. |


## OpenAPI

````yaml openapi.json GET /api/v2/plays/{name}/cost
openapi: 3.1.1
info:
  title: Deepline API
  version: v2
  description: >-
    Discover typed GTM tools and callable Plays, then execute a tool or start
    and inspect a durable Deepline Play run. Use the MCP endpoint when your
    client supports Model Context Protocol.
  contact:
    name: Deepline support
    email: team@deepline.com
    url: https://deepline.com/contact
servers:
  - url: https://code.deepline.com
    description: Deepline production runtime API
security: []
tags:
  - name: Health
    description: Availability checks.
  - name: Billing
    description: Safe recovery of existing purchase intent.
  - name: Tools
    description: Discover and execute typed provider tools.
  - name: Plays
    description: Discover, start, and inspect durable Play runs.
externalDocs:
  description: API reference
  url: https://deepline.com/docs/api-reference
paths:
  /api/v2/plays/{name}/cost:
    get:
      tags:
        - Plays
      summary: Estimate one saved or prebuilt Play
      description: >-
        Returns reference and costEstimate using workspace pricing, plus
        observedCost for prebuilts. Reads only the selected Play and its bounded
        successful-run cost history. Does not start a run.
      operationId: getPlayCostEstimate
      parameters:
        - name: name
          in: path
          required: true
          description: The name returned by the related Deepline API call.
          schema:
            type: string
            minLength: 1
      responses:
        '200':
          description: A successful Runtime API response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  reference:
                    type: string
                  costEstimate:
                    oneOf:
                      - type: object
                        properties:
                          status:
                            const: available
                          source:
                            enum:
                              - observed
                              - static
                          unit:
                            enum:
                              - row
                              - run
                          lowCredits:
                            type: number
                          highCredits:
                            type: number
                          sampleRunCount:
                            type: number
                          basedOnRunId:
                            type:
                              - string
                              - 'null'
                          modelVersion:
                            type: string
                        required:
                          - status
                          - source
                          - unit
                          - lowCredits
                          - highCredits
                          - sampleRunCount
                          - basedOnRunId
                          - modelVersion
                      - type: object
                        properties:
                          status:
                            const: unavailable
                          reason:
                            type: string
                          message:
                            type: string
                          modelVersion:
                            type: string
                        required:
                          - status
                          - reason
                          - message
                          - modelVersion
                  observedCost:
                    type: object
                    description: >-
                      Aggregate observed or typical cost for a prebuilt; does
                      not establish a spending cap.
                    additionalProperties: true
                required:
                  - reference
                  - costEstimate
        '401':
          description: >-
            The request conflicts with current state or a retained request
            identity.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error: Unauthorized
        '404':
          description: >-
            The request conflicts with current state or a retained request
            identity.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error: Unauthorized
        '500':
          description: >-
            The request conflicts with current state or a retained request
            identity.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error: Unauthorized
      security:
        - bearerAuth: []
components:
  schemas:
    ErrorResponse:
      type: object
      required:
        - error
      properties:
        error:
          oneOf:
            - type: string
              description: Route-specific error message.
            - type: object
              properties:
                code:
                  type: string
                message:
                  type: string
                resolution:
                  type: string
              additionalProperties: true
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: Deepline workspace API key
      description: >-
        Create a workspace API key in the Deepline dashboard before calling
        authenticated endpoints.

````

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