Refuel

Refuel Applications API

The documented realtime application label surface — the endpoint Refuel's own catalog page publishes as `POST https://cloud-api.refuel.ai/applications/{applicationName}/label`, with the concrete request shape and the published 300 req/min, 100 concurrent rate limit. This entry predates the harvest of the full Refuel Cloud API and describes the same product from the documentation rather than the machine-readable contract; the operation it covers appears in the Cloud API spec as online_label_applications__application_id__label_post.

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OpenAPI Specification

openapi: 3.0.1
info:
  title: Refuel Cloud Applications API
  description: REST API for the Refuel Cloud data-labeling and data-enrichment platform. Refuel deploys a Task as a versioned Application served behind a REST endpoint; callers submit rows of structured / semi-structured data to the application's label endpoint to transform (label, clean, enrich) them in realtime using the application's LLM guidelines. Authentication uses an API key passed as a Bearer token. The only endpoint documented with a concrete request shape in Refuel's public documentation is the application label endpoint; dataset, task, application-management, and model/finetuning operations are performed in the Refuel app and via the Python and JavaScript SDKs.
  termsOfService: https://www.refuel.ai
  contact:
    name: Refuel
    url: https://www.refuel.ai
  version: '1.0'
servers:
- url: https://cloud-api.refuel.ai
  description: Refuel Cloud API
security:
- BearerAuth: []
tags:
- name: Applications
paths:
  /applications/{applicationName}/label:
    post:
      operationId: labelWithApplication
      tags:
      - Applications
      summary: Transform rows with a deployed application
      description: Submit a JSON array of input rows to a deployed application to run LLM labeling / prediction in realtime. Each row is an object whose keys match the application's expected input fields. The application applies its Task guidelines and returns the transformed (labeled / enriched) output for each row. Subject to a documented rate limit of 300 requests per minute and up to 100 concurrent requests.
      parameters:
      - name: applicationName
        in: path
        required: true
        description: The name of the deployed application (for example, resume-parsing).
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LabelRequest'
            example:
            - resume_link: https://path/to/resume.pdf
      responses:
        '200':
          description: Rows transformed successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LabelResponse'
        '401':
          description: Missing or invalid API key.
        '429':
          description: Rate limit exceeded (more than 300 requests per minute or more than 100 concurrent requests).
      security:
      - BearerAuth: []
components:
  schemas:
    LabelResponse:
      type: array
      description: Array of transformed rows. Each item contains the application's output fields; outputs may include confidence scores and explanations per field.
      items:
        type: object
        additionalProperties: true
    LabelRequest:
      type: array
      description: Array of input rows to transform. Each row is an object whose keys are the input fields expected by the target application.
      items:
        type: object
        additionalProperties: true
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: 'Refuel API key supplied as a Bearer token in the Authorization header: Authorization: Bearer <YOUR_API_KEY>.'