OWASP API Security Project

The OWASP API Security Project focuses on strategies and solutions to understand and mitigate the unique vulnerabilities and security risks of Application Programming Interfaces. The project produces and maintains the OWASP API Security Top 10, a community-driven list of the most critical API security risks for developers, architects, and security professionals.

OWASP API Security Project is listed with 1 API on the APIs.io network. Tagged areas include Security, Standards, and OWASP.

OWASP API Security Project’s developer surface includes documentation, GitHub presence, and 6 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

12.3/100 emerging ▬ flat Agent 1/100 human only Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

AccessFreemium

1 API

Security Standards OWASP

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 12.3/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 1.3 / 17

Operational Transparency 2.6 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 1.8 / 15

Agent readiness — 1/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 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

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/.

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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/owasp-api-security-project: 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.

OWASP

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.

OWASP API Security Project

The OWASP API Security Project produces and maintains the OWASP API Security Top 10, a list of the most critical API security risks. It provides guidance, tools, and references ...

Pricing Plans 1

Published pricing tiers and plan structures.

Owasp Api Security Project Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Owasp Api Security Project Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Owasp Api Security Project Finops

FINOPS

Security Posture 2

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

Owasp Api Security Project Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Owasp Api Security Project Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: owasp-api-security-project
name: OWASP API Security Project
description: The OWASP API Security Project focuses on strategies and solutions to understand and mitigate the unique vulnerabilities
  and security risks of Application Programming Interfaces. The project produces and maintains the OWASP API Security Top
  10, a community-driven list of the most critical API security risks for developers, architects, and security professionals.
type: Index
deliveryModel:
  model: unknown
  license_evidence:
    not_product:
    - owasp/api-security
  open_source: unknown
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/owasp-api-security-project.png
tags:
- Security
- Standards
- OWASP
created: '2025-01-08'
modified: '2026-04-28'
url: https://raw.githubusercontent.com/api-evangelist/owasp-api-security-project/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis:
- aid: owasp-api-security-project:owasp-api-security-project
  name: OWASP API Security Project
  description: The OWASP API Security Project produces and maintains the OWASP API Security Top 10, a list of the most critical
    API security risks. It provides guidance, tools, and references to help organizations identify and address API-specific
    vulnerabilities such as broken object level authorization, broken authentication, and excessive data exposure.
  humanURL: https://owasp.org/www-project-api-security/
  tags:
  - Security
  - Standards
  properties:
  - type: Documentation
    url: https://owasp.org/www-project-api-security/
  - type: Reference
    url: https://owasp.org/API-Security/editions/2023/en/0x00-header/
common:
- type: Plans
  url: plans/owasp-api-security-project-plans-pricing.yml
- type: RateLimits
  url: rate-limits/owasp-api-security-project-rate-limits.yml
- type: FinOps
  url: finops/owasp-api-security-project-finops.yml
- type: VulnerabilityDisclosure
  url: security/owasp-api-security-project-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/owasp-api-security-project-domain-security.yml
- type: Website
  url: https://owasp.org/www-project-api-security/
- type: Documentation
  url: https://owasp.org/www-project-api-security/
- type: GitHub
  url: https://github.com/OWASP/API-Security
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: owasp
x-relationship: product

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