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 publishes 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 3 more developer resources.

🌐 Visit website 📡 Source on GitHub

13.2/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessFreemium

1 APIs

Security StandardsOWASP

Kin Score

Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0

Composite quality — 13.2/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 3.3 / 20

Access Clarity 3.2 / 20

Operational Transparency 1.7 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 3/100 · 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

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.

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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

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
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  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: 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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