Tidelift

Tidelift provides open-source software supply-chain management for enterprises. Its platform combines package intelligence (maintenance, quality, end-of-life, and vulnerability signals) with catalogs of approved dependencies, policy and license standards enforcement, SBOM import/export, and "alignment" of projects against an organization's standards. Tidelift is distinctive for paying the open-source maintainers ("lifters") behind the packages enterprises rely on. The Tidelift External API (OpenAPI 3.0, Bearer API-key auth) exposes catalogs, violations, projects, groups, packages, releases, vulnerabilities, licenses, and reporting. Tidelift was acquired by Sonar in 2025; the API and developer surface remain active.

Tidelift publishes 15 APIs on the APIs.io network, including Alignments API, Attestations API, Authentication API, and 12 more. Tagged areas include Company, Open Source, Software Supply Chain, Dependency Management, and Application Security.

The Tidelift catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Tidelift’s developer surface includes documentation, API reference, getting-started guide, support, pricing, authentication, CLI, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub

38.0/100 thin ▬ flat Agent 31/100 agent ready Front door AI 5/6 prominent saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

1 APIs

Company Open Source Software Supply Chain Dependency Management Application Security SBOMLicense ComplianceVulnerability Management Developer Tools

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 38.0/100 · thin

Contract Quality 9.9 / 19

Developer Ergonomics 8.8 / 15

Access Clarity 0.0 / 15

Operational Transparency 3.6 / 10

Contract Governance 0.4 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 31/100 · agent ready

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 6 / 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

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/.

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/tidelift: 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 15

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

Tidelift Alignments API

The Alignments API from Tidelift — 4 operation(s) for alignments.

Tidelift Attestations API

The Attestations API from Tidelift — 2 operation(s) for attestations.

Tidelift Authentication API

A [Tidelift API key](https://docs.tidelift.com/article/79-api-authentication) is required for all endpoints. If a particular type of API key is required it will be noted on the ...

Tidelift Basic Examples API

* curl ``` curl -H "Accept: application/json" \ -H "Authorization: bearer " \ https://api.tidelift.com/external-api/v1/packages/pypi/urllib3 ``` More deta...

Tidelift Catalog Releases API

The Catalog Releases API from Tidelift — 7 operation(s) for catalog releases.

Tidelift Catalogs API

The Catalogs API from Tidelift — 9 operation(s) for catalogs.

Tidelift CatalogStandards API

The CatalogStandards API from Tidelift — 3 operation(s) for catalogstandards.

Tidelift Groups API

The Groups API from Tidelift — 5 operation(s) for groups.

Tidelift Licenses API

The Licenses API from Tidelift — 5 operation(s) for licenses.

Tidelift Packages API

The Packages API from Tidelift — 6 operation(s) for packages.

Tidelift Projects API

The Projects API from Tidelift — 6 operation(s) for projects.

Tidelift Releases API

The Releases API from Tidelift — 5 operation(s) for releases.

Tidelift Reports API

The Reports API from Tidelift — 3 operation(s) for reports.

Tidelift Users API

The Users API from Tidelift — 1 operation(s) for users.

Tidelift Vulnerabilities API

The Vulnerabilities API from Tidelift — 2 operation(s) for vulnerabilities.

Scroll for all 15

Open Collections 16

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

API Collection

OPEN COLLECTION

Tidelift External Alignments API

OPEN COLLECTION

Tidelift External Alignments Attestations API

OPEN COLLECTION

Tidelift External Alignments Authentication API

OPEN COLLECTION

Tidelift External Alignments Basic Examples API

OPEN COLLECTION

Tidelift External Alignments Catalog Releases API

OPEN COLLECTION

Tidelift External Alignments Catalogs API

OPEN COLLECTION

Tidelift External Alignments CatalogStandards API

OPEN COLLECTION

Tidelift External Alignments Groups API

OPEN COLLECTION

Tidelift External Alignments Licenses API

OPEN COLLECTION

Tidelift External Alignments Packages API

OPEN COLLECTION

Tidelift External Alignments Projects API

OPEN COLLECTION

Tidelift External Alignments Releases API

OPEN COLLECTION

Tidelift External Alignments Reports API

OPEN COLLECTION

Tidelift External Alignments Users API

OPEN COLLECTION

Tidelift External Alignments Vulnerabilities API

OPEN COLLECTION

Scroll for all 16

Arazzo Workflows 1

Multi-step API workflows described with the Arazzo specification.

Tidelift — package vulnerability check

Validate the API key, look up a package and a release, and pull the release's vulnerabilities.

ARAZZO

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Tidelift Webhooks

ASYNCAPI

Security Posture 3

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

Tidelift Authentication

http · 1 scheme

SECURITY

Tidelift Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Tidelift Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Tidelift Agentic Access

72 operations · 33 acting · 2 human-in-the-loop

72 operations · 33 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Conformance

Lifecycle

DataModel

Webhooks

Arazzo

Scroll for all 7

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Postman

Packages

SDKs

CLI

Access & Security 5

Authentication, authorization, and security posture

Authentication

Authentication

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

DomainSecurity

DomainSecurity

SecurityTxt

SecurityTxt

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

ParentCompany

ParentCompany

Overlay

Overlay

Source (apis.yml)

aid: tidelift
name: Tidelift
description: Tidelift provides open-source software supply-chain management for enterprises. Its platform combines package
  intelligence (maintenance, quality, end-of-life, and vulnerability signals) with catalogs of approved dependencies, policy
  and license standards enforcement, SBOM import/export, and "alignment" of projects against an organization's standards.
  Tidelift is distinctive for paying the open-source maintainers ("lifters") behind the packages enterprises rely on. The
  Tidelift External API (OpenAPI 3.0, Bearer API-key auth) exposes catalogs, violations, projects, groups, packages, releases,
  vulnerabilities, licenses, and reporting. Tidelift was acquired by Sonar in 2025; the API and developer surface remain active.
url: https://raw.githubusercontent.com/api-evangelist/tidelift/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- general-catalyst
x-parent-company: sonar
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://api.tidelift.com/docs/assets/tidelift_logo.png
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-09-16'
tags:
- Company
- Open Source
- Software Supply Chain
- Dependency Management
- Application Security
- SBOM
- License Compliance
- Vulnerability Management
- Developer Tools
tags_raw:
- Company
- Open Source
- Software Supply Chain
- Dependency Management
- Application Security
- SBOM
- License Compliance
- Vulnerability Management
- Developer Tools
- Open-Source
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: tidelift:tidelift-alignments-api
  name: Tidelift Alignments API
  description: The Alignments API from Tidelift — 4 operation(s) for alignments.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Alignments
  properties:
  - type: OpenAPI
    url: openapi/tidelift-alignments-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-attestations-api
  name: Tidelift Attestations API
  description: The Attestations API from Tidelift — 2 operation(s) for attestations.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Attestation
  tags_raw:
  - Attestations
  properties:
  - type: OpenAPI
    url: openapi/tidelift-attestations-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-authentication-api
  name: Tidelift Authentication API
  description: 'A [Tidelift API key](https://docs.tidelift.com/article/79-api-authentication) is required for all endpoints.
    If a particular type of API key is required it will be noted on the path.

    <SecurityDefinitions />'
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/tidelift-authentication-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-basic-examples-api
  name: Tidelift Basic Examples API
  description: "* curl\n\n```\ncurl -H \"Accept: application/json\" \\\n     -H \"Authorization: bearer <your Tidelift API\
    \ key>\" \\\n     https://api.tidelift.com/external-api/v1/packages/pypi/urllib3\n```\n\nMore detailed examples can be\
    \ found in [the Tidelift support documentation](https://support.tidelift.com/hc/en-us/articles/4406286633364-How-to-access-Tidelift-APIs#h_01H9TWCQQQ5033Q7DTP89BYC5H)."
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Basic Examples
  properties:
  - type: OpenAPI
    url: openapi/tidelift-basic-examples-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-catalog-releases-api
  name: Tidelift Catalog Releases API
  description: The Catalog Releases API from Tidelift — 7 operation(s) for catalog releases.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Catalog Releases
  properties:
  - type: OpenAPI
    url: openapi/tidelift-catalog-releases-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-catalogs-api
  name: Tidelift Catalogs API
  description: The Catalogs API from Tidelift — 9 operation(s) for catalogs.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Catalog
  tags_raw:
  - Catalogs
  properties:
  - type: OpenAPI
    url: openapi/tidelift-catalogs-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-catalogstandards-api
  name: Tidelift CatalogStandards API
  description: The CatalogStandards API from Tidelift — 3 operation(s) for catalogstandards.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - CatalogStandards
  properties:
  - type: OpenAPI
    url: openapi/tidelift-catalogstandards-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-groups-api
  name: Tidelift Groups API
  description: The Groups API from Tidelift — 5 operation(s) for groups.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Group
  tags_raw:
  - Groups
  properties:
  - type: OpenAPI
    url: openapi/tidelift-groups-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-licenses-api
  name: Tidelift Licenses API
  description: The Licenses API from Tidelift — 5 operation(s) for licenses.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Licenses
  properties:
  - type: OpenAPI
    url: openapi/tidelift-licenses-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-packages-api
  name: Tidelift Packages API
  description: The Packages API from Tidelift — 6 operation(s) for packages.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Packages
  properties:
  - type: OpenAPI
    url: openapi/tidelift-packages-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-projects-api
  name: Tidelift Projects API
  description: The Projects API from Tidelift — 6 operation(s) for projects.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/tidelift-projects-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-releases-api
  name: Tidelift Releases API
  description: The Releases API from Tidelift — 5 operation(s) for releases.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Releases
  properties:
  - type: OpenAPI
    url: openapi/tidelift-releases-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-reports-api
  name: Tidelift Reports API
  description: The Reports API from Tidelift — 3 operation(s) for reports.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Reports
  properties:
  - type: OpenAPI
    url: openapi/tidelift-reports-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-users-api
  name: Tidelift Users API
  description: The Users API from Tidelift — 1 operation(s) for users.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/tidelift-users-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
- aid: tidelift:tidelift-vulnerabilities-api
  name: Tidelift Vulnerabilities API
  description: The Vulnerabilities API from Tidelift — 2 operation(s) for vulnerabilities.
  humanURL: https://api.tidelift.com/docs/
  baseURL: https://api.tidelift.com/external-api
  tags:
  - Vulnerabilities
  properties:
  - type: OpenAPI
    url: openapi/tidelift-vulnerabilities-api-openapi.yml
  - type: APIReference
    url: https://api.tidelift.com/docs/
common:
- type: ParentCompany
  url: https://apis.io/providers/sonar/
  name: Sonar
  x-relationship: acquired
  x-evidence: description names Sonar and https://tidelift.com now redirects to sonarsource.com (roadmap#390, corroborate-dead.py)
- type: Website
  url: https://tidelift.com
- type: Overlay
  url: overlays/tidelift-subscriber-api-overlay.yaml
- type: DeveloperPortal
  url: https://api.tidelift.com/docs/
- type: Documentation
  url: https://support.tidelift.com/hc/en-us
- type: APIReference
  url: https://api.tidelift.com/docs/
- type: GettingStarted
  url: https://docs.tidelift.com/article/79-api-authentication
- type: Support
  url: https://support.tidelift.com/hc/en-us
- type: Pricing
  url: https://tidelift.com/subscription/pricing
- type: GitHubOrganization
  url: https://github.com/tidelift
- type: Postman
  url: https://github.com/tidelift/tidelift-api-postman
- type: StatusPage
  url: https://status.tidelift.com/
- type: Authentication
  url: authentication/tidelift-authentication.yml
- type: AgenticAccess
  url: agentic-access/tidelift-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/tidelift-vulnerability-disclosure.yml
- type: Security
  url: https://tidelift.com/security
- type: DomainSecurity
  url: security/tidelift-domain-security.yml
- type: WellKnown
  url: well-known/tidelift-well-known.yml
- type: SecurityTxt
  url: well-known/tidelift-security.txt
- type: Packages
  url: packages/tidelift-packages.yml
- type: SDKs
  url: packages/tidelift-packages.yml
- type: CLI
  url: cli/tidelift-cli.yml
- type: X-MCPServerCandidate
  url: mcp/tidelift-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/tidelift-llms.txt
- type: Conventions
  url: conventions/tidelift-conventions.yml
- type: ErrorCatalog
  url: errors/tidelift-problem-types.yml
- type: Conformance
  url: conformance/tidelift-conformance.yml
- type: Lifecycle
  url: lifecycle/tidelift-lifecycle.yml
- type: DataModel
  url: data-model/tidelift-data-model.yml
- type: Webhooks
  url: asyncapi/tidelift-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Arazzo
  name: Tidelift — package vulnerability check
  url: arazzo/tidelift-package-vulnerability-check.arazzo.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 22
  pass: local-v1

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