Synthesia

Synthesia is the leading enterprise AI video platform for creating studio-quality videos from text using lifelike AI avatars and voices. Customers use Synthesia to produce training, learning and development, customer onboarding, marketing, and internal communications videos in 140+ languages without cameras, actors, or studios. The company sells tiered SaaS plans (Basic, Starter, Creator, Enterprise) with API access starting at the Creator tier and full programmatic capabilities for enterprise customers. The Synthesia API lets teams generate, translate, and dub videos at scale and embed video generation into their own applications.

Synthesia publishes 7 API contracts indexed on the APIs.io network, including Assets API, Dubbing API, Templates API, and 4 more. Tagged areas include Artificial Intelligence, Generative AI, Video, Avatars, and Video Generation.

The Synthesia catalog on APIs.io includes 1 Spectral governance ruleset.

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

🌐 Visit website 📡 Profile data on GitHub

34.6/100 thin ▬ flat Agent 44/100 agent ready Front door AI 6/6 dominant Heartbeat 83/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreeSelf serve⚡ Free to try

1 published contract 1 MCP Servers

Artificial Intelligence Generative AI Video Avatars Video Generation Voice Dubbing Translation Templates Enterprise Learning

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

AI Model Services

AE-110

DubbingTemplates

POST /dubbing/projects POST /videos/from-template

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 34.6/100 · thin

Contract Quality 8.7 / 19

Developer Ergonomics 5.4 / 15

Access Clarity 5.9 / 15

Operational Transparency 0.5 / 10

Contract Governance 1.2 / 9

Discoverability 5.1 / 8

Regulatory Posture 2.2 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 44/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 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

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the AI & Biometrics regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

5 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 46.6 — up to +13.4 composite points
Developer Ergonomics scores 35.7 — up to +12.9 composite points
Operational Transparency scores 5.3 — up to +12.3 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/synthesia/apis.yml: open an issue on github.com/api-evangelist/synthesia to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Film & Media Identifiers (EIDR, ISAN, MovieLabs, DPP)	builds-on	29.2	-	-
UK G-Cloud Suppliers (UK public-sector cloud procurement)	builds-on	29.2	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 4

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 7

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

Synthesia Assets API

The Assets API from Synthesia — 3 operation(s) for assets.

Synthesia Dubbing API

The Dubbing API from Synthesia — 3 operation(s) for dubbing.

Synthesia Templates API

The Templates API from Synthesia — 3 operation(s) for templates.

Synthesia Translations API

The Translations API from Synthesia — 4 operation(s) for translations.

Synthesia Videos API

The Videos API from Synthesia — 5 operation(s) for videos.

Synthesia Webhooks API

The Webhooks API from Synthesia — 2 operation(s) for webhooks.

Synthesia Audit Logs API

The Audit Logs API from Synthesia — 3 operation(s) for audit logs.

Scroll for all 7

Open Collections 8

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Synthesia Assets API

OPEN COLLECTION

Synthesia Assets AuditLogs API

OPEN COLLECTION

Synthesia Assets Dubbing API

OPEN COLLECTION

Synthesia Assets Templates API

OPEN COLLECTION

Synthesia Assets Translations API

OPEN COLLECTION

Synthesia Assets Videos API

OPEN COLLECTION

Synthesia Assets Webhooks API

OPEN COLLECTION

Synthesia API

OPEN COLLECTION

Scroll for all 8

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Synthesia MCP Server

Remote MCP server at mcp.synthesia.io over HTTP.

MCP SERVER

Synthesia API pricing

Not yet checked against Synthesia's own pricing page. Compiled by API Evangelist on 2026-05-22; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Pro Tier Default: 120 requests per minute

Compiled by API Evangelist, not yet checked against Synthesia's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Synthesia Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Synthesia Rate Limits

2 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Synthesia

SLA

FinOps 1

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

Synthesia Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Synthesia API Rules

43 rules · 40 errors 1 warnings 2 info

SPECTRAL

Security Posture 2

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

Synthesia Authentication

apiKey · 1 scheme

SECURITY

Synthesia Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Synthesia Agentic Access

28 operations · 13 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

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

ChangeLog

ChangeLog

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: synthesia
name: Synthesia
description: Synthesia is the leading enterprise AI video platform for creating studio-quality videos from text using lifelike
  AI avatars and voices. Customers use Synthesia to produce training, learning and development, customer onboarding, marketing,
  and internal communications videos in 140+ languages without cameras, actors, or studios. The company sells tiered SaaS
  plans (Basic, Starter, Creator, Enterprise) with API access starting at the Creator tier and full programmatic capabilities
  for enterprise customers. The Synthesia API lets teams generate, translate, and dub videos at scale and embed video generation
  into their own applications.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/synthesia.png
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-17
tags:
- Artificial Intelligence
- Generative AI
- Video
- Avatars
- Video Generation
- Voice
- Dubbing
- Translation
- Templates
- Enterprise
- Learning
tags_raw:
- Artificial Intelligence
- Generative AI
- Video
- Avatars
- Text To Video
- Voices
- Dubbing
- Translation
- Templates
- Enterprise
- Learning
- Text-to-Video
url: https://raw.githubusercontent.com/api-evangelist/synthesia/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.23'
apis:
- aid: synthesia:synthesia-assets-api
  name: Synthesia Assets API
  description: The Assets API from Synthesia — 3 operation(s) for assets.
  humanURL: https://docs.synthesia.io/
  baseURL: https://api.synthesia.io/v2
  tags:
  - Assets
  properties:
  - type: OpenAPI
    url: openapi/synthesia-assets-api-openapi.yml
  - type: Documentation
    url: https://docs.synthesia.io/
  - type: GettingStarted
    url: https://docs.synthesia.io/docs/getting-started
  - type: Signup
    url: https://www.synthesia.io/signup
  - type: API
    url: https://docs.synthesia.io/reference
  - type: Pricing
    url: https://www.synthesia.io/pricing
  - type: Authentication
    url: https://docs.synthesia.io/reference/authentication
- aid: synthesia:synthesia-dubbing-api
  name: Synthesia Dubbing API
  description: The Dubbing API from Synthesia — 3 operation(s) for dubbing.
  humanURL: https://docs.synthesia.io/
  baseURL: https://api.synthesia.io/v2
  tags:
  - Dubbing
  properties:
  - type: OpenAPI
    url: openapi/synthesia-dubbing-api-openapi.yml
  - type: Documentation
    url: https://docs.synthesia.io/
  - type: GettingStarted
    url: https://docs.synthesia.io/docs/getting-started
  - type: Signup
    url: https://www.synthesia.io/signup
  - type: API
    url: https://docs.synthesia.io/reference
  - type: Pricing
    url: https://www.synthesia.io/pricing
  - type: Authentication
    url: https://docs.synthesia.io/reference/authentication
- aid: synthesia:synthesia-templates-api
  name: Synthesia Templates API
  description: The Templates API from Synthesia — 3 operation(s) for templates.
  humanURL: https://docs.synthesia.io/
  baseURL: https://api.synthesia.io/v2
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/synthesia-templates-api-openapi.yml
  - type: Documentation
    url: https://docs.synthesia.io/
  - type: GettingStarted
    url: https://docs.synthesia.io/docs/getting-started
  - type: Signup
    url: https://www.synthesia.io/signup
  - type: API
    url: https://docs.synthesia.io/reference
  - type: Pricing
    url: https://www.synthesia.io/pricing
  - type: Authentication
    url: https://docs.synthesia.io/reference/authentication
- aid: synthesia:synthesia-translations-api
  name: Synthesia Translations API
  description: The Translations API from Synthesia — 4 operation(s) for translations.
  humanURL: https://docs.synthesia.io/
  baseURL: https://api.synthesia.io/v2
  tags:
  - Translation
  tags_raw:
  - Translations
  properties:
  - type: OpenAPI
    url: openapi/synthesia-translations-api-openapi.yml
  - type: Documentation
    url: https://docs.synthesia.io/
  - type: GettingStarted
    url: https://docs.synthesia.io/docs/getting-started
  - type: Signup
    url: https://www.synthesia.io/signup
  - type: API
    url: https://docs.synthesia.io/reference
  - type: Pricing
    url: https://www.synthesia.io/pricing
  - type: Authentication
    url: https://docs.synthesia.io/reference/authentication
- aid: synthesia:synthesia-videos-api
  name: Synthesia Videos API
  description: The Videos API from Synthesia — 5 operation(s) for videos.
  humanURL: https://docs.synthesia.io/
  baseURL: https://api.synthesia.io/v2
  tags:
  - Video
  tags_raw:
  - Videos
  properties:
  - type: OpenAPI
    url: openapi/synthesia-videos-api-openapi.yml
  - type: Documentation
    url: https://docs.synthesia.io/
  - type: GettingStarted
    url: https://docs.synthesia.io/docs/getting-started
  - type: Signup
    url: https://www.synthesia.io/signup
  - type: API
    url: https://docs.synthesia.io/reference
  - type: Pricing
    url: https://www.synthesia.io/pricing
  - type: Authentication
    url: https://docs.synthesia.io/reference/authentication
- aid: synthesia:synthesia-webhooks-api
  name: Synthesia Webhooks API
  description: The Webhooks API from Synthesia — 2 operation(s) for webhooks.
  humanURL: https://docs.synthesia.io/
  baseURL: https://api.synthesia.io/v2
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/synthesia-webhooks-api-openapi.yml
  - type: Documentation
    url: https://docs.synthesia.io/
  - type: GettingStarted
    url: https://docs.synthesia.io/docs/getting-started
  - type: Signup
    url: https://www.synthesia.io/signup
  - type: API
    url: https://docs.synthesia.io/reference
  - type: Pricing
    url: https://www.synthesia.io/pricing
  - type: Authentication
    url: https://docs.synthesia.io/reference/authentication
- aid: synthesia:synthesia-audit-logs-api
  name: Synthesia Audit Logs API
  description: The Audit Logs API from Synthesia — 3 operation(s) for audit logs.
  humanURL: https://docs.synthesia.io/
  baseURL: https://api.synthesia.io/v2
  tags:
  - Audit Logs
  properties:
  - type: OpenAPI
    url: openapi/synthesia-audit-logs-api-openapi.yml
  - type: Documentation
    url: https://docs.synthesia.io/
  - type: GettingStarted
    url: https://docs.synthesia.io/docs/getting-started
  - type: Signup
    url: https://www.synthesia.io/signup
  - type: API
    url: https://docs.synthesia.io/reference
  - type: Pricing
    url: https://www.synthesia.io/pricing
  - type: Authentication
    url: https://docs.synthesia.io/reference/authentication
common:
- type: CapabilityMap
  url: capabilities/synthesia-capability-edges.yml
  name: Synthesia Business Capability Map
- type: Plans
  url: plans/synthesia-plans-pricing.yml
- type: RateLimits
  url: rate-limits/synthesia-rate-limits.yml
- type: FinOps
  url: finops/synthesia-finops.yml
- type: AgenticAccess
  url: agentic-access/synthesia-agentic-access.yml
- type: DomainSecurity
  url: security/synthesia-domain-security.yml
- type: Authentication
  url: authentication/synthesia-authentication.yml
- type: Website
  url: https://www.synthesia.io
- type: Documentation
  url: https://docs.synthesia.io
- type: Blog
  url: https://www.synthesia.io/blog
- type: Pricing
  url: https://www.synthesia.io/pricing
- type: TermsOfService
  url: https://www.synthesia.io/terms-of-service
- type: PrivacyPolicy
  url: https://www.synthesia.io/privacy-policy
- type: X
  url: https://x.com/synthesiaIO
- type: LinkedIn
  url: https://www.linkedin.com/company/synthesia-technologies
- type: ChangeLog
  url: https://docs.synthesia.io/changelog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Synthesia API — frequently asked questions

Does Synthesia have an API?

Yes. APIs.io lists 7 APIs from Synthesia, including Synthesia Assets API, Synthesia Dubbing API and Synthesia Templates API, and 4 more.

Is there an OpenAPI specification for the Synthesia API?

Yes. APIs.io indexes 7 OpenAPI specifications for Synthesia, each linked for download from this page.

How do I authenticate with the Synthesia API?

Synthesia documents its authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Synthesia Authentication.

How much does the Synthesia API cost?

APIs.io lists 1 pricing plan for Synthesia, with each plan's price, limits and inclusions under Pricing on this page.

Does Synthesia have an MCP server?

Yes. APIs.io lists 1 MCP server for Synthesia: Remote MCP server at mcp.synthesia.io over HTTP.

Is the Synthesia API ready for AI agents?

Synthesia has a Kin Score of 34.6 out of 100 (thin) and an Agent Readiness score of 43.9 (agent-ready), scored by API Evangelist on 2026-11-06.

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