Ex-Human

Ex-Human is a "Digital Human as a Service" platform that provides a single, unified API for building fully immersive, emotionally intelligent AI companions that communicate through text, voice, images, and video. Backed by a16z, the company lets developers design unique character personalities and generate multimodal responses at production scale. The Ex-Human API spans a multimodal chatbot (roleplay and realistic-chat models with long-term memory and smart replies), image generation (personalized gallery images and avatars via the persona-2 and supreme models), talking-head avatar animation (lip-sync from text or audio), image-to-video animation jobs, and text-to-speech. It is trusted by large consumer-technology companies to power AI companions, entertainment and gaming NPCs, dating experiences, AI twins, education tutors, and healthcare and therapy support at scale.

Ex-Human publishes 4 APIs on the APIs.io network, including animations API, chatbot API, Image Generation API, and 1 more. Tagged areas include Company, Artificial Intelligence, Conversational AI, AI Companions, and Generative AI.

Ex-Human’s developer surface includes authentication, documentation, API reference, getting-started guide, changelog, pricing, signup flow, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

33.6/100 thin ▬ flat Agent 26/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Artificial Intelligence Conversational AIAI CompanionsGenerative AI Text-to-Speech Image-Generation Video Generation Avatars Multi-Modal

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 33.6/100 · thin

Contract Quality 12.1 / 23

Developer Ergonomics 6.8 / 18

Access Clarity 3.8 / 18

Operational Transparency 0.9 / 12

Contract Governance 0.5 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

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.

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 github.com/api-evangelist/ex-human: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 4

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

Ex-Human animations API

The animations API from Ex-Human — 6 operation(s) for animations.

Ex-Human chatbot API

The chatbot API from Ex-Human — 3 operation(s) for chatbot.

Ex-Human Image Generation API

The Image Generation API from Ex-Human — 2 operation(s) for image generation.

Ex-Human Text to Speech API

The Text to Speech API from Ex-Human — 1 operation(s) for text to speech.

Open Collections 5

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

API Collection

OPEN COLLECTION

Ex-Human animations API

OPEN COLLECTION

Ex-Human animations chatbot API

OPEN COLLECTION

Ex-Human animations Image Generation API

OPEN COLLECTION

Ex-Human animations Text to Speech API

OPEN COLLECTION

Security Posture 2

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

Ex Human Authentication

http · 1 scheme

SECURITY

Ex Human Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Ex Human Agentic Access

12 operations · 11 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

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

AgenticAccess

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

Lifecycle

Conformance

DataModel

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Support

Support

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: ex-human
name: Ex-Human
description: Ex-Human is a "Digital Human as a Service" platform that provides a single, unified API for building fully immersive,
  emotionally intelligent AI companions that communicate through text, voice, images, and video. Backed by a16z, the company
  lets developers design unique character personalities and generate multimodal responses at production scale. The Ex-Human
  API spans a multimodal chatbot (roleplay and realistic-chat models with long-term memory and smart replies), image generation
  (personalized gallery images and avatars via the persona-2 and supreme models), talking-head avatar animation (lip-sync
  from text or audio), image-to-video animation jobs, and text-to-speech. It is trusted by large consumer-technology companies
  to power AI companions, entertainment and gaming NPCs, dating experiences, AI twins, education tutors, and healthcare and
  therapy support at scale.
url: https://raw.githubusercontent.com/api-evangelist/ex-human/refs/heads/main/apis.yml
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://exh.ai/Union512.png?v=2
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Artificial Intelligence
- Conversational AI
- AI Companions
- Generative AI
- Text-to-Speech
- Image-Generation
- Video Generation
- Avatars
- Multi-Modal
tags_raw:
- Company
- Artificial Intelligence
- Conversational AI
- AI Companions
- Generative AI
- Text to Speech
- Image Generation
- Video Generation
- Avatars
- Multimodal
apis:
- aid: ex-human:ex-human-animations-api
  name: Ex-Human animations API
  description: The animations API from Ex-Human — 6 operation(s) for animations.
  humanURL: https://docs.exh.ai/reference/getting-started-with-your-api
  baseURL: https://api.exh.ai
  tags:
  - Animations
  tags_raw:
  - animations
  properties:
  - type: OpenAPI
    url: openapi/ex-human-animations-api-openapi.yml
  - type: Documentation
    url: https://docs.exh.ai/
  - type: APIReference
    url: https://docs.exh.ai/reference/get_response_chatbot_v3_response_post
  - type: GettingStarted
    url: https://docs.exh.ai/reference/getting-started-with-your-api
- aid: ex-human:ex-human-chatbot-api
  name: Ex-Human chatbot API
  description: The chatbot API from Ex-Human — 3 operation(s) for chatbot.
  humanURL: https://docs.exh.ai/reference/getting-started-with-your-api
  baseURL: https://api.exh.ai
  tags:
  - Chatbots
  tags_raw:
  - chatbot
  properties:
  - type: OpenAPI
    url: openapi/ex-human-chatbot-api-openapi.yml
  - type: Documentation
    url: https://docs.exh.ai/
  - type: APIReference
    url: https://docs.exh.ai/reference/get_response_chatbot_v3_response_post
  - type: GettingStarted
    url: https://docs.exh.ai/reference/getting-started-with-your-api
- aid: ex-human:ex-human-image-generation-api
  name: Ex-Human Image Generation API
  description: The Image Generation API from Ex-Human — 2 operation(s) for image generation.
  humanURL: https://docs.exh.ai/reference/getting-started-with-your-api
  baseURL: https://api.exh.ai
  tags:
  - Image-Generation
  tags_raw:
  - Image Generation
  properties:
  - type: OpenAPI
    url: openapi/ex-human-image-generation-api-openapi.yml
  - type: Documentation
    url: https://docs.exh.ai/
  - type: APIReference
    url: https://docs.exh.ai/reference/get_response_chatbot_v3_response_post
  - type: GettingStarted
    url: https://docs.exh.ai/reference/getting-started-with-your-api
- aid: ex-human:ex-human-text-to-speech-api
  name: Ex-Human Text to Speech API
  description: The Text to Speech API from Ex-Human — 1 operation(s) for text to speech.
  humanURL: https://docs.exh.ai/reference/getting-started-with-your-api
  baseURL: https://api.exh.ai
  tags:
  - Text-to-Speech
  tags_raw:
  - Text to Speech
  properties:
  - type: OpenAPI
    url: openapi/ex-human-text-to-speech-api-openapi.yml
  - type: Documentation
    url: https://docs.exh.ai/
  - type: APIReference
    url: https://docs.exh.ai/reference/get_response_chatbot_v3_response_post
  - type: GettingStarted
    url: https://docs.exh.ai/reference/getting-started-with-your-api
common:
- type: Website
  url: https://www.exh.ai/
- type: Overlay
  url: overlays/ex-human-openapi-overlay.yaml
- type: DomainSecurity
  url: security/ex-human-domain-security.yml
- type: AgenticAccess
  url: agentic-access/ex-human-agentic-access.yml
- type: Authentication
  url: authentication/ex-human-authentication.yml
- type: DeveloperPortal
  url: https://docs.exh.ai/
- type: Documentation
  url: https://docs.exh.ai/
- type: APIReference
  url: https://docs.exh.ai/reference/get_response_chatbot_v3_response_post
- type: GettingStarted
  url: https://docs.exh.ai/reference/getting-started-with-your-api
- type: ChangeLog
  url: https://docs.exh.ai/changelog
- type: Pricing
  url: https://exh.ai/#pricing
- type: SignUp
  url: https://admin.exh.ai/
- type: Support
  url: mailto:support@exh.ai
- type: Blog
  url: https://exh.ai/blog/
- type: TermsOfService
  url: https://www.privacypolicies.com/live/6e088827-d8ce-4369-bb65-6b0bd4a23146
- type: PrivacyPolicy
  url: https://www.privacypolicies.com/live/a9dd0844-8a81-48dc-bdef-f022e0ef4d4e
- type: LinkedIn
  url: https://www.linkedin.com/company/ex-human/
- type: ErrorCatalog
  url: errors/ex-human-problem-types.yml
- type: Conventions
  url: conventions/ex-human-conventions.yml
- type: Lifecycle
  url: lifecycle/ex-human-lifecycle.yml
- type: Conformance
  url: conformance/ex-human-conformance.yml
- type: DataModel
  url: data-model/ex-human-data-model.yml
- type: X-MCPServerCandidate
  url: mcp/ex-human-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/ex-human-llms.txt
- type: ChangeLog
  url: changelog/ex-human-changelog.yml
- type: AgentSkill
  url: skills/_index.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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