Unison Computing

Unison Computing, PBC is a public benefit corporation building the Unison programming language, Unison Cloud, and Unison Share. Unison is a statically-typed functional language where code is content-addressed and immutable; Unison Cloud deploys Unison services to the cloud with a function call, with typed service-to-service calls and typed durable storage; Unison Share is the community code host and package registry. Unison Share's open-source backend also serves as the OAuth2 (PKCE) and OpenID Connect authentication server for UCM and Unison Cloud, and UCM ships a built-in MCP server plus official LLM coding-assistant instructions for AI agents.

Unison Computing is listed with 1 API on the APIs.io network. Tagged areas include Company, Programming Language, Cloud Computing, Developer Tools, and Functional Programming.

Unison Computing’s developer surface includes documentation, getting-started guide, support, engineering blog, pricing, signup flow, authentication, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

31.9/100 thin ▬ flat Agent 10/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive open core · MIT Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API 1 MCP Servers

Company Programming Language Cloud Computing Developer Tools Functional Programming Distributed Systems Platform-as-a-Service

Kin Score

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

Composite quality — 31.9/100 · thin

Contract Quality 0.0 / 19

Developer Ergonomics 10.4 / 15

Access Clarity 6.7 / 15

Operational Transparency 1.8 / 10

Contract Governance 1.6 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.7 / 15

Open Source Surface 0.0 / 10

Agent readiness — 10/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 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

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 Horizontal (data, software, accessibility, platform) 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.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 75 points between them, because both conditional facets apply and carry 25 points together. 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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

11 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 44.7 — up to +11.1 composite points
Operational Transparency scores 18.4 — 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/unison-computing/apis.yml: open an issue on github.com/api-evangelist/unison-computing 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.

Agent Skills

measured — observed by APIs.io (published)

APIs 1

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

Unison Share API

The API powering the Unison Share web application, including the APIs for syncing code with UCM and browsing projects, branches, and definitions. Unison Share also acts as the O...

MCP Servers 1

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

Unison Computing MCP Server

Local (stdio) MCP server; 16 tools listed.

MCP SERVER

Security Posture 2

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

Unison Computing Authentication

oauth2/openIdConnect · 1 scheme

SECURITY

Unison Computing Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Sandbox

Sandbox

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

WellKnown

MCPServer

LLMsTxt

AgentSkill

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Lifecycle

Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Support

Support

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

License

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: unison-computing
name: Unison Computing
description: Unison Computing, PBC is a public benefit corporation building the Unison programming language, Unison Cloud,
  and Unison Share. Unison is a statically-typed functional language where code is content-addressed and immutable; Unison
  Cloud deploys Unison services to the cloud with a function call, with typed service-to-service calls and typed durable storage;
  Unison Share is the community code host and package registry. Unison Share's open-source backend also serves as the OAuth2
  (PKCE) and OpenID Connect authentication server for UCM and Unison Cloud, and UCM ships a built-in MCP server plus official
  LLM coding-assistant instructions for AI agents.
url: https://raw.githubusercontent.com/api-evangelist/unison-computing/refs/heads/main/apis.yml
deliveryModel:
  model: open-core
  license: MIT
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - 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
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://github.com/unisonweb.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- uncork-capital
x-tier: enriched
x-tier-reason: developer-tools company with real cloud platform, auth API, MCP, and agent-skill surface
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Programming Language
- Cloud Computing
- Developer Tools
- Functional Programming
- Distributed Systems
- Platform-as-a-Service
tags_raw:
- Company
- Programming Languages
- Cloud Computing
- Developer Tools
- Functional Programming
- Distributed Systems
- Platform as a Service
apis:
- name: Unison Share API
  description: The API powering the Unison Share web application, including the APIs for syncing code with UCM and browsing
    projects, branches, and definitions. Unison Share also acts as the OAuth2 (with PKCE) and OpenID Connect (subset) authentication
    server for UCM and Unison Cloud. The server is open source (Haskell/Servant); no OpenAPI document is published.
  humanURL: https://share.unison-lang.org
  baseURL: https://api.unison-lang.org
  tags:
  - Code Hosting
  - Packages
  - Authentication
  - OAuth
  - OpenID Connect
  tags_raw:
  - Code Hosting
  - Packages
  - Authentication
  - OAuth
  - OpenID Connect
  properties:
  - type: SourceCode
    url: https://github.com/unisoncomputing/share-api
  - type: OpenIDConnect
    url: https://api.unison-lang.org/.well-known/openid-configuration
common:
- type: IssueTracker
  url: https://github.com/unisoncomputing/share-api/issues
- type: License
  name: MIT
  url: https://github.com/unisoncomputing/share-api/blob/main/LICENSE
- type: DomainSecurity
  url: security/unison-computing-domain-security.yml
- type: Website
  url: https://www.unison-lang.org/
- type: DeveloperPortal
  url: https://app.unison.cloud
- type: Documentation
  url: https://www.unison-lang.org/docs/
- type: GettingStarted
  url: https://www.unison-lang.org/docs/at-a-glance/
- type: Support
  url: https://www.unison-lang.org/community/
- type: Blog
  url: https://www.unison-lang.org/blog/
- type: GitHubOrganization
  url: https://github.com/unisonweb
- type: Pricing
  url: https://www.unison.cloud/pricing/
- type: SignUp
  url: https://www.unison.cloud/signup/?plan=Free
- type: Login
  url: https://app.unison.cloud
- type: TermsOfService
  url: https://www.unison.cloud/terms-of-service/
- type: PrivacyPolicy
  url: https://www.unison.cloud/privacy-policy/
- type: Packages
  url: packages/unison-computing-packages.yml
- type: SDKs
  url: packages/unison-computing-packages.yml
- type: WellKnown
  url: well-known/unison-computing-well-known.yml
- type: MCPServer
  url: mcp/unison-computing-mcp.yml
- type: LLMsTxt
  url: llms/unison-computing-llms.txt
- type: Conformance
  url: conformance/unison-computing-conformance.yml
- type: Lifecycle
  url: lifecycle/unison-computing-lifecycle.yml
- type: Authentication
  url: authentication/unison-computing-authentication.yml
- type: ChangeLog
  url: changelog/unison-computing-changelog.yml
- type: CLI
  url: cli/unison-computing-cli.yml
- type: Sandbox
  url: sandbox/unison-computing-sandbox.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: '2026-07-21'
  status: enriched
  artifacts_added: 12
  pass: local-v1

Unison Computing API — frequently asked questions

Does Unison Computing have an API?

Yes. APIs.io lists 1 API from Unison Computing, including Unison Share API.

How do I authenticate with the Unison Computing API?

Unison Computing documents its authentication (oauth2/openIdConnect · 1 scheme). The details are profiled on APIs.io as Unison Computing Authentication.

Does Unison Computing have an MCP server?

Yes. APIs.io lists 1 MCP server for Unison Computing: Local (stdio) MCP server; 16 tools listed.

Is the Unison Computing API ready for AI agents?

Unison Computing has a Kin Score of 31.9 out of 100 (thin) and an Agent Readiness score of 10.1 (agent-aware), scored by API Evangelist on 2026-11-06.

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get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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