Fossa

FOSSA is a software supply chain security and open source management platform that scans codebases, containers, and binaries to detect open source dependencies, then enforces open source license compliance, vulnerability management, and SBOM (CycloneDX/SPDX) obligations across the software development lifecycle. FOSSA exposes a REST API at app.fossa.com/api plus the language-agnostic FOSSA CLI, integrating with 20+ build systems and CI/CD to surface licensing, security, and quality issues, generate attribution and audit reports, and gate pull requests on policy violations. Backed by Bain Capital Ventures and Norwest Venture Partners.

Fossa is listed with 1 API on the APIs.io network. Tagged areas include Company, Security, Software Supply Chain, Open Source, and License Compliance.

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

Fossa’s developer surface includes engineering blog, documentation, API reference, getting-started guide, support, pricing, signup flow, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub

49.6/100 developing ▬ flat Agent 23/100 agent aware Front door AI 3/6 light saas Full breakdown ↓
scored 2026-10-09 · rubric v0.23.0

1 API

Company Security Software Supply Chain Open SourceLicense ComplianceVulnerability Management SBOM Software Composition Analysis DevSecOps

Kin Score

Kin Score How this is scored →
scored 2026-10-09 · rubric v0.23.0

Composite quality — 49.6/100 · developing

Contract Quality 8.3 / 21

Developer Ergonomics 11.3 / 17

Access Clarity 8.1 / 17

Operational Transparency 4.7 / 11

Contract Governance 1.9 / 10

Discoverability 6.2 / 9

Regulatory Posture 4.4 / 15

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 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 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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

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 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 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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/fossa: 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 →

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.

DevSecOps

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 1

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

FOSSA REST API

The FOSSA REST API lets you build integrations and automate open source management workflows — manage projects, revisions, issues, users and teams, release groups, and reports; ...

Event Specifications 1

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

Fossa Webhooks

ASYNCAPI

Security Posture 3

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

Fossa Authentication

http · 1 scheme

SECURITY

Fossa Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Fossa Trust Center

SOC 2

SECURITY

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 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

X-MCPServerCandidate

X-MCPServerCandidate

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Lifecycle

Conventions

Conformance

DataModel

Webhooks

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

Compliance

Authentication

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 4

The organization behind the API

Blog

BlogRSS

Website

Blog

Source (apis.yml)

aid: fossa
name: Fossa
description: FOSSA is a software supply chain security and open source management platform that scans codebases, containers,
  and binaries to detect open source dependencies, then enforces open source license compliance, vulnerability management,
  and SBOM (CycloneDX/SPDX) obligations across the software development lifecycle. FOSSA exposes a REST API at app.fossa.com/api
  plus the language-agnostic FOSSA CLI, integrating with 20+ build systems and CI/CD to surface licensing, security, and quality
  issues, generate attribution and audit reports, and gate pull requests on policy violations. Backed by Bain Capital Ventures
  and Norwest Venture Partners.
url: https://raw.githubusercontent.com/api-evangelist/fossa/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bain-capital-ventures
- norwest-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - 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
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
image: https://fossa.com/favicon.png
tags:
- Company
- Security
- Software Supply Chain
- Open Source
- License Compliance
- Vulnerability Management
- SBOM
- Software Composition Analysis
- DevSecOps
tags_raw:
- Company
- Security
- Software Supply Chain
- Open Source
- License Compliance
- Vulnerability Management
- SBOM
- Software Composition Analysis
- DevSecOps
- Open-Source
apis:
- name: FOSSA REST API
  description: The FOSSA REST API lets you build integrations and automate open source management workflows — manage projects,
    revisions, issues, users and teams, release groups, and reports; initiate binary scans; download attribution reports;
    and query the vulnerability database by CPE. Authenticates with an API token in the Authorization Bearer header over HTTPS.
  humanURL: https://docs.fossa.com/docs/api
  baseURL: https://app.fossa.com/api
  properties:
  - type: APIReference
    url: https://docs.fossa.com/docs/api/reference
  - type: Authentication
    url: authentication/fossa-authentication.yml
  - type: ErrorCatalog
    url: errors/fossa-problem-types.yml
  - type: Webhooks
    url: asyncapi/fossa-webhooks.yml
  - type: DataModel
    url: data-model/fossa-data-model.yml
  - type: Conventions
    url: conventions/fossa-conventions.yml
  - type: X-MCPServerCandidate
    url: mcp/fossa-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.'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://fossa.com/blog/
  type: Blog
- url: https://fossa.com/blog/rss.xml
  type: BlogRSS
- type: TrustCenter
  url: security/fossa-trust-center.yml
- type: Website
  url: https://fossa.com/
- type: DeveloperPortal
  url: https://docs.fossa.com/
- type: Documentation
  url: https://docs.fossa.com/docs/get-started
- type: APIReference
  url: https://docs.fossa.com/docs/api/reference
- type: GettingStarted
  url: https://docs.fossa.com/docs/get-started/your-first-scan
- type: Support
  url: https://support.fossa.com/
- type: Blog
  url: https://fossa.com/blog
- type: GitHubOrganization
  url: https://github.com/fossas
- type: Pricing
  url: https://fossa.com/pricing
- type: SignUp
  url: https://app.fossa.com/account/register
- type: TermsOfService
  url: https://fossa.com/terms-of-service
- type: PrivacyPolicy
  url: https://fossa.com/privacy-policy
- type: StatusPage
  url: https://status.fossa.com
- type: Compliance
  url: https://fossa.com/trust
- type: Authentication
  url: authentication/fossa-authentication.yml
- type: LLMsTxt
  url: llms/fossa-llms.txt
- type: Packages
  url: packages/fossa-packages.yml
- type: SDKs
  url: packages/fossa-packages.yml
- type: CLI
  url: cli/fossa-cli.yml
- type: ErrorCatalog
  url: errors/fossa-problem-types.yml
- type: Lifecycle
  url: lifecycle/fossa-lifecycle.yml
- type: ChangeLog
  url: changelog/fossa-changelog.yml
- type: Conventions
  url: conventions/fossa-conventions.yml
- type: Conformance
  url: conformance/fossa-conformance.yml
- type: DataModel
  url: data-model/fossa-data-model.yml
- type: Webhooks
  url: asyncapi/fossa-webhooks.yml
- type: X-MCPServerCandidate
  url: mcp/fossa-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: DomainSecurity
  url: security/fossa-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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