Sema4 Ai

Sema4.ai is an enterprise AI agent company building a platform that lets organizations design, run, and manage AI agents that combine actions, intelligence, and enterprise context to transform knowledge work. Its developer surface centers on AI Actions — Python functions exposed to agents via the open-source Sema4.ai Action Server, which serves both an OpenAPI-compatible REST API and a Model Context Protocol (MCP) server. The platform adds a versioned REST API (v2) for driving agents, conversations, Work Items, data connections, MCP servers, and audits programmatically, plus Enterprise and Snowflake-native Team editions. Founded by the team behind Robocorp, Sema4.ai is backed by Mayfield.

Sema4 Ai publishes 1 API on the APIs.io network. Tagged areas include Company, Artificial Intelligence, AI Agents, Automation, and MCP.

Sema4 Ai’s developer surface includes documentation, API reference, getting-started guide, engineering blog, pricing, signup flow, support, and 22 more developer resources.

37.1/100 thin ▬ flat Agent 36/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyArtificial IntelligenceAI AgentsAutomationMCPEnterprise AIActionsPythonDeveloper Tools

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 37.1/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 14.8 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 36/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 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 0 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 3 / 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/sema4-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 1

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

Sema4.ai REST API

The v2 REST API drives the Sema4.ai platform programmatically — list and talk to agents, stream responses, queue and manage Work Items, read data connections, manage MCP servers...

MCP Servers 1

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

sema4-ai-mcp.yml

MCP SERVER

Security Posture 3

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

Sema4 Ai Authentication

http/openIdConnect · 3 schemes

SECURITY

Sema4 Ai Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Sema4 Ai Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 5

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: sema4-ai
name: Sema4 Ai
description: Sema4.ai is an enterprise AI agent company building a platform that lets organizations design, run, and manage
  AI agents that combine actions, intelligence, and enterprise context to transform knowledge work. Its developer surface
  centers on AI Actions — Python functions exposed to agents via the open-source Sema4.ai Action Server, which serves both
  an OpenAPI-compatible REST API and a Model Context Protocol (MCP) server. The platform adds a versioned REST API (v2) for
  driving agents, conversations, Work Items, data connections, MCP servers, and audits programmatically, plus Enterprise and
  Snowflake-native Team editions. Founded by the team behind Robocorp, Sema4.ai is backed by Mayfield.
url: https://raw.githubusercontent.com/api-evangelist/sema4-ai/refs/heads/main/apis.yml
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
image: https://sema4.ai/favicon.svg
x-type: company
x-source: vc-portfolio
x-backed-by:
- mayfield
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Artificial Intelligence
- AI Agents
- Automation
- MCP
- Enterprise AI
- Actions
- Python
- Developer Tools
apis:
- name: Sema4.ai REST API
  description: The v2 REST API drives the Sema4.ai platform programmatically — list and talk to agents, stream responses,
    queue and manage Work Items, read data connections, manage MCP servers, and read audits. Each deployment serves its own
    OpenAPI spec at GET /api/v2. Authenticated with a bearer API key.
  humanURL: https://sema4.ai/docs/v2/api
  baseURL: https://sema4.ai
  properties:
  - type: APIReference
    url: https://sema4.ai/docs/v2/api
  - type: Authentication
    url: authentication/sema4-ai-authentication.yml
  - type: Conventions
    url: conventions/sema4-ai-conventions.yml
  - type: ErrorCatalog
    url: errors/sema4-ai-problem-types.yml
  - type: DataModel
    url: data-model/sema4-ai-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://sema4.ai
- type: DeveloperPortal
  url: https://sema4.ai/docs
- type: Documentation
  url: https://sema4.ai/docs
- type: APIReference
  url: https://sema4.ai/docs/v2/api
- type: GettingStarted
  url: https://sema4.ai/docs
- type: Blog
  url: https://sema4.ai/blog/
- type: Pricing
  url: https://sema4.ai/pricing/
- type: SignUp
  url: https://sema4.ai/try-team-edition/
- type: TermsOfService
  url: https://sema4.ai/terms-and-conditions/
- type: PrivacyPolicy
  url: https://sema4.ai/privacy-policy/
- type: Support
  url: https://sema4.ai/contact-us/
- type: GitHubOrganization
  url: https://github.com/Sema4AI
- type: Packages
  url: packages/sema4-ai-packages.yml
- type: SDKs
  url: packages/sema4-ai-packages.yml
- type: CLI
  url: cli/sema4-ai-cli.yml
- type: MCPServer
  url: mcp/sema4-ai-mcp.yml
- type: LLMsTxt
  url: llms/sema4-ai-llms.txt
- type: WellKnown
  url: well-known/sema4-ai-well-known.yml
- type: SecurityTxt
  url: well-known/sema4-ai-security.txt
- type: Authentication
  url: authentication/sema4-ai-authentication.yml
- type: Conventions
  url: conventions/sema4-ai-conventions.yml
- type: ErrorCatalog
  url: errors/sema4-ai-problem-types.yml
- type: Lifecycle
  url: lifecycle/sema4-ai-lifecycle.yml
- type: ChangeLog
  url: changelog/sema4-ai-changelog.yml
- type: DataModel
  url: data-model/sema4-ai-data-model.yml
- type: Conformance
  url: conformance/sema4-ai-conformance.yml
- type: DomainSecurity
  url: security/sema4-ai-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/sema4-ai-vulnerability-disclosure.yml
- type: Security
  url: https://sema4.ai/.well-known/responsible-disclosure-policy.html
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 15
  pass: local-v1