api-security-testing SKILL.md skillA
api-security-testing from usestrix/strix is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add usestrix/strix/api-security-testing@git:20260917.46d7bdbPins git:20260917.46d7bdb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- usestrix/strix
- Path
skills/api-security-testing/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260917.46d7bdb, committed Sep 17, 2026
- First version recorded
- Aug 20, 2026
- Size
- 6,331 bytes
- Repository stars
- 74,096
- License
- Apache-2.0
Security-test a REST, GraphQL, or gRPC API with Strix — autonomous agents that enumerate endpoints from an OpenAPI/GraphQL schema (or by crawling), then actually exploit the API-specific vulnerability classes in the OWASP API Security Top 10 (2023) — broken object-level authorization (BOLA/IDOR), broken object property level authorization (excessive data exposure and mass assignment), broken function-level authorization, unrestricted resource consumption, SSRF, injection, and auth/token flaws.…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Security-test an API APIs fail differently from web UIs: there is no rendered surface to crawl, the interesting bugs are authorization-shaped rather than injection-shaped, and the same endpoint behaves differently per token. This workflow targets those specifics with Strix's autonomous agents, using the current [OWASP API Security Top 10 (2023)](https://owasp.org/API-Security/editions/2023/en/0x11-t10/) as the coverage checklist. For the web-app equivalent, the current edition is the OWASP Top 10:2025 — see **owasp-top-10-testing**. Install, LLM setup, full CLI flags, and the managed-cloud path are in the **penetration-testing-with-strix** skill. Read it if `strix --version` fails or the target is not an API. For a run with no Docker and no LLM key, the same binary drives the managed platform: `strix cloud login`, then `strix cloud scans start ...` (details in **managed-pentesting-with-strix**). ## 1. Gather what the agents need APIs are near-impossible to test blind, so collect first: | Input | Why it matters | |---|---| …
Read the whole file at its exact version.
How to install
mdr add usestrix/strix/api-security-testing@sha256:bd04c90d87be2353The line at the top of this page pins the label git:20260917.46d7bdb, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_xdg3lsegnlpyw2gm)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Aug 20, 2026 and Sep 17, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260917.46d7bdb latest | 2026-09-17 | 46d7bdb | 6,331 B | A | view · diff |
| git:20260901.42baa7c | 2026-09-01 | 42baa7c | 6,290 B | A | view · diff |
| git:20260820.2cc8167 | 2026-08-20 | 2cc8167 | 6,100 B | A | view · diff |
| git:20260820.9099710 | 2026-08-20 | 9099710 | 5,389 B | A | view · diff |
| git:20260820.d6a3ca7 | 2026-08-20 | d6a3ca7 | 5,700 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6331 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
usestrix/strix · 74,096 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xdg3lsegnlpyw2gm GET https://markdownregistry.com/api/v1/resolve?ref=usestrix/strix/api-security-testing GET https://markdownregistry.com/api/v1/blob/bd04c90d87be2353ebefee33363af0818746345e25c80ed36f63fcdd2b25509c
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.