Just Captions

Just Captions Emoji API

The Emoji API from Just Captions — 1 operation(s) for emoji.

Documentation GitHub OpenAPI

Operations 1

POST /emoji One emoji per caption, null when unavailable #

Specifications

⚙

OpenAPI

https://artifacts.apis.io/justcaptions-com/openapi/justcaptions-com-emoji-api-openapi.yml

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Just Captions Emoji API
  version: 1.4.0
  description: Timed captions and AI text edits. Video rendering runs locally through the open-source MCP/CLI. https://justcaptions.com/agents/ New accounts start free and use prepaid credits beyond the monthly allowance. One-time recharge minimum $5 USD, no automatic recharge. Usage returns credit_balance_cents, credit_available_cents and credits_used_this_month_cents.
servers:
- url: https://api.justcaptions.com/v1
security:
- ApiKey: []
tags:
- name: Emoji
paths:
  /emoji:
    post:
      operationId: post_emoji
      summary: One emoji per caption, null when unavailable
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
        '400':
          description: invalid_request
        '401':
          description: invalid_api_key
        '402':
          description: insufficient_credits (prepaid balance or monthly cap), or payment_required (legacy subscription)
        '429':
          description: quota_exceeded, free_tier_busy, spend_cap_reached or rate_limited
        '503':
          description: Provider or service unavailable
        '409':
          description: idempotency_conflict or request_in_progress
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                captions:
                  type: array
                  minItems: 1
                  maxItems: 1000
                  items:
                    type: string
                    minLength: 1
                    maxLength: 200
                language:
                  type: string
              required:
              - captions
      parameters:
      - in: header
        name: Idempotency-Key
        required: false
        schema:
          type: string
          pattern: ^[A-Za-z0-9_-]{1,100}$
        description: Reuse for identical retries within 24 hours. Different input with the same key returns 409.
      tags:
      - Emoji
components:
  securitySchemes:
    ApiKey:
      type: http
      scheme: bearer
      bearerFormat: jc_live_<32 alphanumeric characters>