Captions website screenshot

Captions

Captions is an AI-powered video creation and editing platform developed by Mirage, a New York-based AI research and product company. The platform enables creators and businesses to generate, edit, caption, dub, and translate talking-head videos at scale using generative AI. The Captions API — served under the Mirage API umbrella — exposes capabilities for automated video captioning, AI Creator video generation (using community avatars or personal AI Twins), AI Ads video generation, and bulk video management, all authenticated via API key and billed on a per-second-of-video credit model. Captions supports output in 30+ languages with automatic language detection, lip-sync dubbing, and direct publishing integrations for TikTok, Instagram, and YouTube.

Captions publishes 6 APIs on the APIs.io network, including AI Ads API, AI Creator API, Audio API, and 3 more. Tagged areas include AI Video, Video Generation, Video Captioning, AI Dubbing, and Lip Sync.

The Captions catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Captions’ developer surface includes authentication, documentation, engineering blog, pricing, changelog, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub
53.1/100 developing ▼ -5.1 Agent 34/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
6 APIs
AI VideoVideo GenerationVideo CaptioningAI DubbingLip SyncAI TwinText to VideoGenerative AIVideo Translation

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 53.1/100 · developing
Contract Quality 16.2 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 6.8 / 13
Governance 8.3 / 12
Discoverability 7.4 / 10
Agent readiness — 34/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/captions-ai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Captions AI Ads API

Generate UGC-style AI advertising videos using AI creators

Captions AI Creator API

Generate talking-head videos using community AI avatars or AI Twins

Captions Audio API

Text-to-speech audio generation

Captions Meta Text Overlays API

Render static text overlays onto videos

Captions Video Captions API

Add AI captions to videos and manage caption templates

Captions Videos API

Create and list AI-generated videos

Pricing Plans 1

Published pricing tiers and plan structures.

Captions Ai Plans Pricing

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Captions Ai Rate Limits

6 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Captions Ai Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Captions Ai Context

3 classes · 31 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Captions API Rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 3

Standalone JSON Schema definitions for this provider's data models.

MACaptionTemplate

5 properties

JSON SCHEMA

CreatorJobPollResponse

4 properties

JSON SCHEMA

MAVideo

12 properties

JSON SCHEMA

Examples 3

Example request and response payloads for these APIs.

Captions Ai Add Captions Example

5 fields

EXAMPLE

Captions Ai Creator Submit Example

6 fields

EXAMPLE

Captions Ai Generate Video Example

6 fields

EXAMPLE

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Captions Ai Authentication

apiKey · 1 scheme

SECURITY

Captions Ai Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Captions Ai Agentic Access

15 operations · 9 acting

15 operations · 9 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Vocabulary
Vocabulary
 JSONLDContext
JSONLDContext

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 2

Status, limits, changes, and where to get help

ChangeLog
ChangeLog
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

Website
Website
 LinkedIn
LinkedIn
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

X
X

Source (apis.yml)

apis.yml Raw ↑ 
aid: captions-ai
name: Captions
description: 'Captions is an AI-powered video creation and editing platform developed by Mirage, a New York-based AI research
  and product company. The platform enables creators and businesses to generate, edit, caption, dub, and translate talking-head
  videos at scale using generative AI. The Captions API — served under the Mirage API umbrella — exposes capabilities for
  automated video captioning, AI Creator video generation (using community avatars or personal AI Twins), AI Ads video generation,
  and bulk video management, all authenticated via API key and billed on a per-second-of-video credit model. Captions supports
  output in 30+ languages with automatic language detection, lip-sync dubbing, and direct publishing integrations for TikTok,
  Instagram, and YouTube.

  '
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/captions-ai.png
tags:
- AI Video
- Video Generation
- Video Captioning
- AI Dubbing
- Lip Sync
- AI Twin
- Text to Video
- Generative AI
- Video Translation
url: https://raw.githubusercontent.com/api-evangelist/captions-ai/refs/heads/main/apis.yml
created: '2026-06-12'
modified: '2026-06-12'
specificationVersion: '0.19'
apis:
- aid: captions-ai:captions-ai-ai-ads-api
  name: Captions AI Ads API
  description: Generate UGC-style AI advertising videos using AI creators
  humanURL: https://captions.ai/help/docs/api/video-captions
  baseURL: https://api.mirage.app
  tags:
  - AI Ads
  properties:
  - type: OpenAPI
    url: openapi/captions-ai-ai-ads-api-openapi.yml
  - type: Documentation
    url: https://captions.ai/help/docs/api/video-captions
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-creator
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-ads
  - type: Documentation
    url: https://captions.ai/help/api-reference/api
- aid: captions-ai:captions-ai-ai-creator-api
  name: Captions AI Creator API
  description: Generate talking-head videos using community AI avatars or AI Twins
  humanURL: https://captions.ai/help/docs/api/video-captions
  baseURL: https://api.mirage.app
  tags:
  - AI Creator
  properties:
  - type: OpenAPI
    url: openapi/captions-ai-ai-creator-api-openapi.yml
  - type: Documentation
    url: https://captions.ai/help/docs/api/video-captions
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-creator
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-ads
  - type: Documentation
    url: https://captions.ai/help/api-reference/api
- aid: captions-ai:captions-ai-audio-api
  name: Captions Audio API
  description: Text-to-speech audio generation
  humanURL: https://captions.ai/help/docs/api/video-captions
  baseURL: https://api.mirage.app
  tags:
  - Audio
  properties:
  - type: OpenAPI
    url: openapi/captions-ai-audio-api-openapi.yml
  - type: Documentation
    url: https://captions.ai/help/docs/api/video-captions
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-creator
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-ads
  - type: Documentation
    url: https://captions.ai/help/api-reference/api
- aid: captions-ai:captions-ai-meta-text-overlays-api
  name: Captions Meta Text Overlays API
  description: Render static text overlays onto videos
  humanURL: https://captions.ai/help/docs/api/video-captions
  baseURL: https://api.mirage.app
  tags:
  - Meta Text Overlays
  properties:
  - type: OpenAPI
    url: openapi/captions-ai-meta-text-overlays-api-openapi.yml
  - type: Documentation
    url: https://captions.ai/help/docs/api/video-captions
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-creator
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-ads
  - type: Documentation
    url: https://captions.ai/help/api-reference/api
- aid: captions-ai:captions-ai-video-captions-api
  name: Captions Video Captions API
  description: Add AI captions to videos and manage caption templates
  humanURL: https://captions.ai/help/docs/api/video-captions
  baseURL: https://api.mirage.app
  tags:
  - Video Captions
  properties:
  - type: OpenAPI
    url: openapi/captions-ai-video-captions-api-openapi.yml
  - type: Documentation
    url: https://captions.ai/help/docs/api/video-captions
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-creator
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-ads
  - type: Documentation
    url: https://captions.ai/help/api-reference/api
- aid: captions-ai:captions-ai-videos-api
  name: Captions Videos API
  description: Create and list AI-generated videos
  humanURL: https://captions.ai/help/docs/api/video-captions
  baseURL: https://api.mirage.app
  tags:
  - Videos
  properties:
  - type: OpenAPI
    url: openapi/captions-ai-videos-api-openapi.yml
  - type: Documentation
    url: https://captions.ai/help/docs/api/video-captions
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-creator
  - type: Documentation
    url: https://captions.ai/help/api-reference/ai-ads
  - type: Documentation
    url: https://captions.ai/help/api-reference/api
common:
- type: AgenticAccess
  url: agentic-access/captions-ai-agentic-access.yml
- type: DomainSecurity
  url: security/captions-ai-domain-security.yml
- type: Authentication
  url: authentication/captions-ai-authentication.yml
- type: Website
  url: https://captions.ai/
- type: Documentation
  url: https://captions.ai/help/docs/api/overview
- type: GitHubOrganization
  url: https://github.com/mirage-ai-com
- type: LinkedIn
  url: https://www.linkedin.com/company/captionsapp
- type: X
  url: https://x.com/getcaptionsapp
- type: Blog
  url: https://captions.ai/blog
- type: Pricing
  url: https://captions.ai/pricing
- type: ChangeLog
  url: https://captions.ai/help/whats-new
- type: Plans
  url: plans/captions-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/captions-ai-rate-limits.yml
- type: FinOps
  url: finops/captions-ai-finops.yml
- type: Vocabulary
  url: vocabulary/captions-ai-vocabulary.yml
- type: JSONLDContext
  url: json-ld/captions-ai-context.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com