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 6 API contracts indexed on the APIs.io network, including Animations API, Chatbot API, Image Generation API, and 3 more. Tagged areas include Company, Artificial Intelligence, Conversational AI, AI Companion, and Generative AI.

The Ex-Human catalog on APIs.io includes 1 Spectral governance ruleset.

Ex-Human’s developer surface includes authentication, documentation, API reference, getting-started guide, changelog, pricing, signup flow, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

43.9/100 developing ▬ flat Agent 28/100 agent aware saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 3 Agent Skills

Company Artificial Intelligence Conversational AI AI Companion Generative AI Text-to-Speech Image Generation Video Generation Avatars Multi-Modal

Kin Score

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

Composite quality — 43.9/100 · developing

Contract Quality 9.3 / 19

Developer Ergonomics 7.1 / 15

Access Clarity 7.9 / 15

Operational Transparency 1.5 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · 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

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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 49.8 — up to +12.6 composite points
Operational Transparency scores 15.8 — up to +10.9 composite points
Developer Ergonomics scores 47.0 — up to +10.6 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/ex-human/apis.yml: open an issue on github.com/api-evangelist/ex-human 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 →

Standards implemented 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 6

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.

Ex-Human Admin API

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

Ex-Human Metrics API

The Metrics API from Ex-Human — 1 operation(s) for metrics.

Open Collections 4

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

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

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Build a multimodal AI companion chat

AGENT SKILL

Animate an image into video (create-then-poll)

AGENT SKILL

Generate a talking-head avatar video

AGENT SKILL

Ex-Human API pricing

Prices published by Ex-Human, read 2026-10-07 from exh.ai/#pricing.

Plan	Price
Free	$0.00/mo Includes: 100 Talking Head Responses, 100 Chatbot Responses, 100 Image Generations*
Pro	$49.00/mo Includes: API integration, 1,000 Talking Head Responses, 1,000 Chatbot Responses, 1,000 Image Generations*
Enterprise	Ask us Includes: The limits your business needs, Stable high load support, Personal technical support, API integratio

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Ex Human Plans Pricing

3 plans

PLANS

Service Levels 1

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

Ex-Human

SLA

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Ex-Human API Rules

51 rules · 43 errors 5 warnings 3 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Ex Human Openapi Overlay

2 actions · update · ex-human-openapi.yml

DERIVED

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 · 7 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 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  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'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-03
tags:
- Company
- Artificial Intelligence
- Conversational AI
- AI Companion
- 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
- Image-Generation
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
  - 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
- aid: ex-human:ex-human-admin-api
  name: Ex-Human Admin API
  description: The admin API from Ex-Human — 6 operation(s) for admin.
  humanURL: https://docs.exh.ai/reference/getting-started-with-your-api
  baseURL: https://api.exh.ai
  tags:
  - Admin
  tags_raw:
  - admin
  properties:
  - type: OpenAPI
    url: openapi/ex-human-admin-api-openapi.yml
- aid: ex-human:ex-human-metrics-api
  name: Ex-Human Metrics API
  description: The Metrics API from Ex-Human — 1 operation(s) for metrics.
  humanURL: https://docs.exh.ai/reference/getting-started-with-your-api
  baseURL: https://api.exh.ai
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/ex-human-metrics-api-openapi.yml
common:
- type: Plans
  url: plans/ex-human-plans-pricing.yml
- 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

Ex-Human API — frequently asked questions

Does Ex-Human have an API?

Yes. APIs.io lists 6 APIs from Ex-Human, including Ex-Human Animations API, Ex-Human Chatbot API and Ex-Human Image Generation API, and 3 more.

Is there an OpenAPI specification for the Ex-Human API?

Yes. APIs.io indexes 6 OpenAPI specifications for Ex-Human, each linked for download from this page.

How do I authenticate with the Ex-Human API?

Ex-Human uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Ex Human Authentication.

How much does the Ex-Human API cost?

Ex-Human publishes its prices; its Free plan is $0.00/mo as of 2026-10-07. APIs.io lists 3 pricing plans for Ex-Human, with each plan's price, limits and inclusions under Pricing on this page.

Is the Ex-Human API ready for AI agents?

Ex-Human has a Kin Score of 43.9 out of 100 (developing) and an Agent Readiness score of 28.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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