Nuclino

Nuclino is a unified team workspace that combines wikis, docs, and project management into one collaborative platform. Its REST API enables developers to build integrations and automate tasks by programmatically managing items, collections, workspaces, teams, users, fields, and files using Markdown content. The API covers the full content lifecycle — create, read, update, delete, and search — making it possible to sync knowledge bases with external systems, trigger content updates from CI/CD pipelines, and build custom tooling on top of team documentation.

Nuclino publishes 6 API contracts indexed on the APIs.io network, including Collections API, Files API, Items API, and 3 more. Tagged areas include Knowledge Management, Team Workspace, Documentation, Wiki, and Collaboration.

The Nuclino catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Nuclino’s developer surface includes engineering blog, authentication, documentation, pricing, signup flow, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.2/100 thin ▬ flat Agent 26/100 agent aware Front door AI 2/6 trace Heartbeat 100/100 alive 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

Knowledge Management Team Workspace Documentation Wiki Collaboration Project Management REST API

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Knowledge Management

BC-830

Items

GET /items POST /items

Kin Score

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

Composite quality — 36.2/100 · thin

Contract Quality 11.9 / 19

Developer Ergonomics 3.8 / 15

Access Clarity 4.9 / 15

Operational Transparency 0.5 / 10

Contract Governance 0.9 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.2 / 15

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 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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.

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)
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
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)

8 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 25.0 — up to +15.0 composite points
Access Clarity scores 32.9 — up to +13.4 composite points
Operational Transparency scores 5.3 — up to +12.3 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/nuclino/apis.yml: open an issue on github.com/api-evangelist/nuclino 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Workplace Collaboration App Marketplaces	builds-on	40.7	-	-
Miro Marketplace (apps and integrations built on Miro's whiteboard platform)	builds-on	40.7	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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.

Nuclino Collections API

Groups/folders of items

Nuclino Files API

File management

Nuclino Items API

Wiki pages and documents

Nuclino Teams API

Team management

Nuclino Users API

User management

Nuclino Workspaces API

Workspace management

Open Collections 6

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

Nuclino Collections API

OPEN COLLECTION

Nuclino Collections Files API

OPEN COLLECTION

Nuclino Collections Items API

OPEN COLLECTION

Nuclino Collections Teams API

OPEN COLLECTION

Nuclino Collections Users API

OPEN COLLECTION

Nuclino Collections Workspaces API

OPEN COLLECTION

Nuclino API pricing

Not yet checked against Nuclino's own pricing page. Compiled by API Evangelist on 2026-06-13; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free	Free
Starter	$6
Business	$10

Plan details, limits and sources →

Rate limits

Requests per Minute: 150

Compiled by API Evangelist, not yet checked against Nuclino's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Nuclino Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Nuclino Rate Limits

1 limits

RATE LIMITS

Service Levels 1

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

Nuclino

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Nuclino Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Nuclino Context

9 classes · 19 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Nuclino — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 4

Standalone JSON Schema definitions for this provider's data models.

Nuclino Item

12 properties

JSON SCHEMA

Nuclino Team

3 properties

JSON SCHEMA

Nuclino User

6 properties

JSON SCHEMA

Nuclino Workspace

8 properties

JSON SCHEMA

Examples 3

Example request and response payloads for these APIs.

Create Item

3 fields

EXAMPLE

List Workspaces

3 fields

EXAMPLE

Search Items

3 fields

EXAMPLE

Security Posture 3

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

Nuclino Authentication

apiKey · 1 scheme

SECURITY

Nuclino Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Nuclino Trust Center

SOC 2, ISO 27001, ISO 27018, GDPR

SECURITY

Agentic Access 1

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

Nuclino Agentic Access

11 operations · 3 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Signup

Signup

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

Access & Security 5

Authentication, authorization, and security posture

TrustCenter

DomainSecurity

Authentication

Authentication

APIKeys

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Blog

Blog

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: nuclino
name: Nuclino
description: Nuclino is a unified team workspace that combines wikis, docs, and project management into one collaborative
  platform. Its REST API enables developers to build integrations and automate tasks by programmatically managing items, collections,
  workspaces, teams, users, fields, and files using Markdown content. The API covers the full content lifecycle — create,
  read, update, delete, and search — making it possible to sync knowledge bases with external systems, trigger content updates
  from CI/CD pipelines, and build custom tooling on top of team documentation.
type: Index
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/nuclino.png
url: https://raw.githubusercontent.com/api-evangelist/nuclino/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-10-06'
specificationVersion: '0.23'
tags:
- Knowledge Management
- Team Workspace
- Documentation
- Wiki
- Collaboration
- Project Management
- REST API
tags_raw:
- Knowledge Management
- Team Workspace
- Documentation
- Wiki
- Collaboration
- Project Management
- REST API
- Knowledge-Management
apis:
- aid: nuclino:nuclino-collections-api
  name: Nuclino Collections API
  description: Groups/folders of items
  humanURL: https://www.nuclino.com/api
  baseURL: https://api.nuclino.com/v0
  tags:
  - Collection
  tags_raw:
  - Collections
  properties:
  - type: OpenAPI
    url: openapi/nuclino-collections-api-openapi.yml
  - type: Documentation
    url: https://help.nuclino.com/d3a29686-api
  - type: Authentication
    url: https://help.nuclino.com/8090bb76-authentication
  - type: RateLimits
    url: https://help.nuclino.com/b147124e-rate-limiting
  - type: ResourcesEndpoints
    url: https://help.nuclino.com/e30a68b1-resources-endpoints
  - type: ItemsCollections
    url: https://help.nuclino.com/fa38d15f-items-and-collections
  - type: Users
    url: https://help.nuclino.com/f76dc920-users
  - type: Workspaces
    url: https://help.nuclino.com/702467a8-workspaces
  - type: ResponseFormat
    url: https://help.nuclino.com/0a1bea6c-response-format-and-errors
  - type: Blog
    url: https://blog.nuclino.com/
  - type: Plans
    url: plans/nuclino-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/nuclino-rate-limits.yml
  - type: FinOps
    url: finops/nuclino-finops.yml
- aid: nuclino:nuclino-files-api
  name: Nuclino Files API
  description: File management
  humanURL: https://www.nuclino.com/api
  baseURL: https://api.nuclino.com/v0
  tags:
  - File
  tags_raw:
  - Files
  properties:
  - type: OpenAPI
    url: openapi/nuclino-files-api-openapi.yml
  - type: Documentation
    url: https://help.nuclino.com/d3a29686-api
  - type: Authentication
    url: https://help.nuclino.com/8090bb76-authentication
  - type: RateLimits
    url: https://help.nuclino.com/b147124e-rate-limiting
  - type: ResourcesEndpoints
    url: https://help.nuclino.com/e30a68b1-resources-endpoints
  - type: ItemsCollections
    url: https://help.nuclino.com/fa38d15f-items-and-collections
  - type: Users
    url: https://help.nuclino.com/f76dc920-users
  - type: Workspaces
    url: https://help.nuclino.com/702467a8-workspaces
  - type: ResponseFormat
    url: https://help.nuclino.com/0a1bea6c-response-format-and-errors
  - type: Blog
    url: https://blog.nuclino.com/
  - type: Plans
    url: plans/nuclino-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/nuclino-rate-limits.yml
  - type: FinOps
    url: finops/nuclino-finops.yml
- aid: nuclino:nuclino-items-api
  name: Nuclino Items API
  description: Wiki pages and documents
  humanURL: https://www.nuclino.com/api
  baseURL: https://api.nuclino.com/v0
  tags:
  - Item
  tags_raw:
  - Items
  properties:
  - type: OpenAPI
    url: openapi/nuclino-items-api-openapi.yml
  - type: Documentation
    url: https://help.nuclino.com/d3a29686-api
  - type: Authentication
    url: https://help.nuclino.com/8090bb76-authentication
  - type: RateLimits
    url: https://help.nuclino.com/b147124e-rate-limiting
  - type: ResourcesEndpoints
    url: https://help.nuclino.com/e30a68b1-resources-endpoints
  - type: ItemsCollections
    url: https://help.nuclino.com/fa38d15f-items-and-collections
  - type: Users
    url: https://help.nuclino.com/f76dc920-users
  - type: Workspaces
    url: https://help.nuclino.com/702467a8-workspaces
  - type: ResponseFormat
    url: https://help.nuclino.com/0a1bea6c-response-format-and-errors
  - type: Blog
    url: https://blog.nuclino.com/
  - type: Plans
    url: plans/nuclino-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/nuclino-rate-limits.yml
  - type: FinOps
    url: finops/nuclino-finops.yml
- aid: nuclino:nuclino-teams-api
  name: Nuclino Teams API
  description: Team management
  humanURL: https://www.nuclino.com/api
  baseURL: https://api.nuclino.com/v0
  tags:
  - Team
  tags_raw:
  - Teams
  properties:
  - type: OpenAPI
    url: openapi/nuclino-teams-api-openapi.yml
  - type: Documentation
    url: https://help.nuclino.com/d3a29686-api
  - type: Authentication
    url: https://help.nuclino.com/8090bb76-authentication
  - type: RateLimits
    url: https://help.nuclino.com/b147124e-rate-limiting
  - type: ResourcesEndpoints
    url: https://help.nuclino.com/e30a68b1-resources-endpoints
  - type: ItemsCollections
    url: https://help.nuclino.com/fa38d15f-items-and-collections
  - type: Users
    url: https://help.nuclino.com/f76dc920-users
  - type: Workspaces
    url: https://help.nuclino.com/702467a8-workspaces
  - type: ResponseFormat
    url: https://help.nuclino.com/0a1bea6c-response-format-and-errors
  - type: Blog
    url: https://blog.nuclino.com/
  - type: Plans
    url: plans/nuclino-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/nuclino-rate-limits.yml
  - type: FinOps
    url: finops/nuclino-finops.yml
- aid: nuclino:nuclino-users-api
  name: Nuclino Users API
  description: User management
  humanURL: https://www.nuclino.com/api
  baseURL: https://api.nuclino.com/v0
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/nuclino-users-api-openapi.yml
  - type: Documentation
    url: https://help.nuclino.com/d3a29686-api
  - type: Authentication
    url: https://help.nuclino.com/8090bb76-authentication
  - type: RateLimits
    url: https://help.nuclino.com/b147124e-rate-limiting
  - type: ResourcesEndpoints
    url: https://help.nuclino.com/e30a68b1-resources-endpoints
  - type: ItemsCollections
    url: https://help.nuclino.com/fa38d15f-items-and-collections
  - type: Users
    url: https://help.nuclino.com/f76dc920-users
  - type: Workspaces
    url: https://help.nuclino.com/702467a8-workspaces
  - type: ResponseFormat
    url: https://help.nuclino.com/0a1bea6c-response-format-and-errors
  - type: Blog
    url: https://blog.nuclino.com/
  - type: Plans
    url: plans/nuclino-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/nuclino-rate-limits.yml
  - type: FinOps
    url: finops/nuclino-finops.yml
- aid: nuclino:nuclino-workspaces-api
  name: Nuclino Workspaces API
  description: Workspace management
  humanURL: https://www.nuclino.com/api
  baseURL: https://api.nuclino.com/v0
  tags:
  - Workspace
  tags_raw:
  - Workspaces
  properties:
  - type: OpenAPI
    url: openapi/nuclino-workspaces-api-openapi.yml
  - type: Documentation
    url: https://help.nuclino.com/d3a29686-api
  - type: Authentication
    url: https://help.nuclino.com/8090bb76-authentication
  - type: RateLimits
    url: https://help.nuclino.com/b147124e-rate-limiting
  - type: ResourcesEndpoints
    url: https://help.nuclino.com/e30a68b1-resources-endpoints
  - type: ItemsCollections
    url: https://help.nuclino.com/fa38d15f-items-and-collections
  - type: Users
    url: https://help.nuclino.com/f76dc920-users
  - type: Workspaces
    url: https://help.nuclino.com/702467a8-workspaces
  - type: ResponseFormat
    url: https://help.nuclino.com/0a1bea6c-response-format-and-errors
  - type: Blog
    url: https://blog.nuclino.com/
  - type: Plans
    url: plans/nuclino-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/nuclino-rate-limits.yml
  - type: FinOps
    url: finops/nuclino-finops.yml
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/nuclino/overview
- url: https://www.nuclino.com/articles
  type: Blog
- type: CapabilityMap
  url: capabilities/nuclino-capability-edges.yml
  name: Nuclino Business Capability Map
- type: Website
  url: https://www.nuclino.com/
- type: AgenticAccess
  url: agentic-access/nuclino-agentic-access.yml
- type: TrustCenter
  url: security/nuclino-trust-center.yml
- type: DomainSecurity
  url: security/nuclino-domain-security.yml
- type: Authentication
  url: authentication/nuclino-authentication.yml
- type: Documentation
  url: https://help.nuclino.com/d3a29686-api
- type: Authentication
  url: https://help.nuclino.com/8090bb76-authentication
- type: RateLimits
  url: https://help.nuclino.com/b147124e-rate-limiting
- type: Pricing
  url: https://www.nuclino.com/pricing
- type: Blog
  url: https://blog.nuclino.com/
- type: Signup
  url: https://app.nuclino.com/signup
- type: Login
  url: https://app.nuclino.com/login
- type: APIKeys
  url: https://help.nuclino.com/04598850-manage-api-keys
- type: Documentation
  url: https://help.nuclino.com/70af7f4f-connect-nuclino-to-ai-assistants-with-mcp
- type: Plans
  url: plans/nuclino-plans-pricing.yml
- type: RateLimits
  url: rate-limits/nuclino-rate-limits.yml
- type: FinOps
  url: finops/nuclino-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Nuclino API — frequently asked questions

Does Nuclino have an API?

Yes. APIs.io lists 6 APIs from Nuclino, including Nuclino Collections API, Nuclino Files API and Nuclino Items API, and 3 more.

Is there an OpenAPI specification for the Nuclino API?

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

How do I authenticate with the Nuclino API?

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

How much does the Nuclino API cost?

APIs.io lists 3 pricing plans for Nuclino, with each plan's price, limits and inclusions under Pricing on this page.

Is the Nuclino API ready for AI agents?

Nuclino has a Kin Score of 36.2 out of 100 (thin) and an Agent Readiness score of 26.4 (agent-aware), scored by API Evangelist on 2026-11-06.

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