Keyframe Labs

Keyframe Labs builds real-time foundation models that turn AI voice and text agents into lifelike, emotionally expressive video calls. Its Persona-1.5-Live product lets developers add photoreal AI avatars ("personas") to their agents and applications with a few lines of embed code, at roughly 500ms latency and from $0.06 per minute. The platform exposes a REST Sessions API (create a live session, manage meeting bots for Zoom/Meet/Teams, and list voices and LLM models), JavaScript/TypeScript SDKs, and embeddable UI elements, with hosted and self-managed integration paths that plug into agent frameworks such as LiveKit Agents, ElevenLabs Agents, and OpenAI Realtime. Founded in 2025 and backed by Y Combinator (Spring 2026), Keyframe Labs is based in San Francisco.

Keyframe Labs publishes 4 APIs on the APIs.io network, including LLM models API, Meet bots API, Sessions API, and 1 more. Tagged areas include Company, AI, Avatars, Video, and Conversational AI.

Keyframe Labs’ developer surface includes authentication, documentation, API reference, getting-started guide, signup flow, pricing, engineering blog, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub

43.7/100 thin ▬ flat Agent 65/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5

AccessSelf serve

4 APIs 1 MCP Servers

CompanyAIAvatarsVideoConversational AIAgentsReal-TimePersonasVoiceY Combinator

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 43.7/100 · thin

Contract Quality 13.5 / 25

Developer Ergonomics 14.8 / 20

Commercial Clarity 4.7 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 10.0 / 10

Agent readiness — 65/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 15 / 15

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/keyframe-labs: 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 4

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

MCP Servers 1

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

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Demo

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LLMsTxt

MCPServer

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Components

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 4

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Twitter

Twitter

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: keyframe-labs
name: Keyframe Labs
description: Keyframe Labs builds real-time foundation models that turn AI voice and text agents into lifelike, emotionally
  expressive video calls. Its Persona-1.5-Live product lets developers add photoreal AI avatars ("personas") to their agents
  and applications with a few lines of embed code, at roughly 500ms latency and from $0.06 per minute. The platform exposes
  a REST Sessions API (create a live session, manage meeting bots for Zoom/Meet/Teams, and list voices and LLM models), JavaScript/TypeScript
  SDKs, and embeddable UI elements, with hosted and self-managed integration paths that plug into agent frameworks such as
  LiveKit Agents, ElevenLabs Agents, and OpenAI Realtime. Founded in 2025 and backed by Y Combinator (Spring 2026), Keyframe
  Labs is based in San Francisco.
url: https://raw.githubusercontent.com/api-evangelist/keyframe-labs/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://platform.keyframelabs.com/og.png
tags:
- Company
- AI
- Avatars
- Video
- Conversational AI
- Agents
- Real-Time
- Personas
- Voice
- Y Combinator
apis:
- aid: keyframe-labs:keyframe-labs-llm-models-api
  name: Keyframe Labs LLM models API
  description: The LLM models API from Keyframe Labs — 2 operation(s) for llm models.
  humanURL: https://docs.keyframelabs.com/api-reference
  baseURL: https://api.keyframelabs.com/v1
  tags:
  - LLM models
  properties:
  - type: OpenAPI
    url: openapi/keyframe-labs-llm-models-api-openapi.yml
- aid: keyframe-labs:keyframe-labs-meet-bots-api
  name: Keyframe Labs Meet bots API
  description: The Meet bots API from Keyframe Labs — 3 operation(s) for meet bots.
  humanURL: https://docs.keyframelabs.com/api-reference
  baseURL: https://api.keyframelabs.com/v1
  tags:
  - Meet bots
  properties:
  - type: OpenAPI
    url: openapi/keyframe-labs-meet-bots-api-openapi.yml
- aid: keyframe-labs:keyframe-labs-sessions-api
  name: Keyframe Labs Sessions API
  description: The Sessions API from Keyframe Labs — 1 operation(s) for sessions.
  humanURL: https://docs.keyframelabs.com/api-reference
  baseURL: https://api.keyframelabs.com/v1
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/keyframe-labs-sessions-api-openapi.yml
- aid: keyframe-labs:keyframe-labs-voices-api
  name: Keyframe Labs Voices API
  description: The Voices API from Keyframe Labs — 2 operation(s) for voices.
  humanURL: https://docs.keyframelabs.com/api-reference
  baseURL: https://api.keyframelabs.com/v1
  tags:
  - Voices
  properties:
  - type: OpenAPI
    url: openapi/keyframe-labs-voices-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/keyframe-labs-agentic-access.yml
- type: DomainSecurity
  url: security/keyframe-labs-domain-security.yml
- type: Authentication
  url: authentication/keyframe-labs-authentication.yml
- type: LLMsTxt
  url: llms/keyframe-labs-llms.txt
- type: Packages
  url: packages/keyframe-labs-packages.yml
- type: SDKs
  url: packages/keyframe-labs-packages.yml
- type: Components
  url: components/keyframe-labs-components.yml
- type: MCPServer
  url: mcp/keyframe-labs-mcp.yml
- type: Overlay
  url: overlays/keyframe-labs-sessions-overlay.yaml
- type: Conformance
  url: conformance/keyframe-labs-conformance.yml
- type: ErrorCatalog
  url: errors/keyframe-labs-problem-types.yml
- type: Lifecycle
  url: lifecycle/keyframe-labs-lifecycle.yml
- type: Conventions
  url: conventions/keyframe-labs-conventions.yml
- type: DataModel
  url: data-model/keyframe-labs-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Website
  url: https://www.keyframelabs.com
- type: DeveloperPortal
  url: https://docs.keyframelabs.com
- type: Documentation
  url: https://docs.keyframelabs.com
- type: APIReference
  url: https://docs.keyframelabs.com/api-reference
- type: GettingStarted
  url: https://docs.keyframelabs.com/guides/getting-started/quickstart-hosted
- type: SignUp
  url: https://platform.keyframelabs.com
- type: Pricing
  url: https://www.keyframelabs.com/pricing
- type: Blog
  url: https://www.keyframelabs.com/blog
- type: GitHubOrganization
  url: https://github.com/keyframelabs
- type: Support
  url: https://discord.gg/Wfce5xHNd5
- type: Demo
  url: https://demo.keyframelabs.com
- type: LinkedIn
  url: https://www.linkedin.com/company/keyframe-labs-inc
- type: Twitter
  url: https://x.com/KeyframeLabs
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Keyframe Labs

Kin Score

APIs 4

Keyframe Labs LLM models API

Keyframe Labs Meet bots API

Keyframe Labs Sessions API

Keyframe Labs Voices API

MCP Servers 1

keyframe-labs-mcp.yml

Security Posture 2

Keyframe Labs Authentication

Keyframe Labs Domain Security

Agentic Access 1

Keyframe Labs Agentic Access