Skills Directory

Skills Directory (skillsdirectory.com) is a security-first directory of agent skills for Claude, Claude Code and other coding agents. It indexes over 100,000 skills, scans each one automatically for credential reads, network exfiltration, unpinned remote code and prompt-injection vectors, and publishes a public A-F security grade. It offers a key-authenticated REST API (v1) for listing, searching and scanning skills, a public Registry API for CLI installers, live security-grade badges, and a hosted MCP server for Claude Code for Pro members.

Skills Directory is listed with 7 APIs on the APIs.io network, including Categories API, Registry API, Scan API, and 4 more. Tagged areas include Agent Skills, AI Agents, Claude, Directory, and Security Scanning.

The Skills Directory catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Skills Directory’s developer surface includes authentication, documentation, API reference, getting-started guide, pricing, engineering blog, and 25 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

42.0/100 developing ▼ -10.1 Agent 28/100 agent aware Heartbeat 67/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

7 APIs 1 MCP Servers

Agent Skills AI Agents Claude Directory Security Scanning

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 42.0/100 · developing

Contract Quality 4.8 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 9.3 / 15

Operational Transparency 3.9 / 10

Contract Governance 2.0 / 9

Discoverability 6.0 / 8

Regulatory Posture 4.0 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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

MCP Tool Quality 6 / 6

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 25.6 — up to +18.6 composite points
Developer Ergonomics scores 32.1 — up to +13.6 composite points
Contract Governance scores 22.0 — up to +9.4 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/skillsdirectory-com/apis.yml: open an issue on github.com/api-evangelist/skillsdirectory-com to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 3

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.

Agent Skills

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

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 7

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

Skills Directory API

Key-authenticated REST API (v1) to list, search (including Pro semantic search) and retrieve agent skills with their security grades, list categories, read key usage statistics,...

Skills Directory Registry API

Public, unauthenticated JSON API for CLI tools (designed for openskills) to list, search and fetch skills from the Skills Directory registry.

Skills Directory Categories API

The Categories API from Skills Directory — 1 operation(s) for categories.

Skills Directory Registry API

The Registry API from Skills Directory — 2 operation(s) for registry.

Skills Directory Scan API

The Scan API from Skills Directory — 1 operation(s) for scan.

Skills Directory Skills API

The Skills API from Skills Directory — 3 operation(s) for skills.

Skills Directory Stats API

The Stats API from Skills Directory — 1 operation(s) for stats.

Scroll for all 7

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Skills Directory MCP Server

MCP SERVER

Skills Directory API pricing

Prices published by Skills Directory.

Plan	Price
Free	$0
Pro	With Pro, $9/mo
Enterprise	$199/mo

Plan details, limits and sources →

Rate limits

Free tier daily quota: 100
Pro tier daily quota: 1000
Enterprise tier daily quota: 10000

Rate-limit details →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Skillsdirectory Com Plans Pricing

3 plans

PLANS

Skillsdirectory Com Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Skillsdirectory Com Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Skills Directory

SLA

FinOps 1

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

Skillsdirectory Com Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Skillsdirectory Com Context

5 classes · 10 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Skills Directory API Rules

13 rules · 11 errors 1 warnings 1 info

SPECTRAL

JSON Schema 5

Standalone JSON Schema definitions for this provider's data models.

GetApiRegistryResponse

4 properties

JSON SCHEMA

GetApiRegistrySlugResponse

3 properties

JSON SCHEMA

GetApiV1SkillsSlugResponse

2 properties

JSON SCHEMA

PostApiV1ScanRequest

3 properties

JSON SCHEMA

PostApiV1ScanResponse

2 properties

JSON SCHEMA

Security Posture 3

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

Skillsdirectory Com Authentication

apiKey/http-bearer · 2 schemes

SECURITY

Skillsdirectory Com Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Skillsdirectory Com Vulnerability Disclosure

no policy recorded

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Login

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

Authentication

Authentication

Security

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

About

About

Other 4

Properties that don't map to a standard resource type

Hosts

Vendors

Sitemap

RobotsTxt

Source (apis.yml)

aid: skillsdirectory-com
name: Skills Directory
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  probe_state: gated
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://www.skillsdirectory.com/og-image.png
description: Skills Directory (skillsdirectory.com) is a security-first directory of agent skills for Claude, Claude Code
  and other coding agents. It indexes over 100,000 skills, scans each one automatically for credential reads, network exfiltration,
  unpinned remote code and prompt-injection vectors, and publishes a public A-F security grade. It offers a key-authenticated
  REST API (v1) for listing, searching and scanning skills, a public Registry API for CLI installers, live security-grade
  badges, and a hosted MCP server for Claude Code for Pro members.
url: https://raw.githubusercontent.com/api-evangelist/skillsdirectory-com/refs/heads/main/apis.yml
x-type: company
x-source: request
specificationVersion: '0.20'
created: '2026-10-13'
modified: '2026-10-13'
tags:
- Agent Skills
- AI Agents
- Claude
- Directory
- Security Scanning
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: RateLimits
  url: rate-limits/skillsdirectory-com-rate-limits.yml
- type: Plans
  url: plans/skillsdirectory-com-plans-pricing.yml
- type: Authentication
  url: authentication/skillsdirectory-com-authentication.yml
- type: ErrorCatalog
  url: errors/skillsdirectory-com-problem-types.yml
- type: Spectral
  url: rules/skillsdirectory-com-rules.yml
- type: JSONLD
  url: json-ld/skillsdirectory-com-context.jsonld
- type: Vocabulary
  url: vocabulary/skillsdirectory-com-vocabulary.yml
- type: DataModel
  url: data-model/skillsdirectory-com-data-model.yml
- type: Conformance
  url: conformance/skillsdirectory-com-conformance.yml
- type: LLMsTxt
  url: llms/skillsdirectory-com-llms.txt
- type: Hosts
  url: hosts/skillsdirectory-com-hosts.yml
- type: Vendors
  url: vendors/skillsdirectory-com-vendors.yml
- type: Security
  url: https://www.skillsdirectory.com/security
- type: Login
  url: https://app.skillsdirectory.com/sign-in
- type: GitHubOrganization
  url: https://github.com/aggarcinuno
- type: DeveloperPortal
  url: https://www.skillsdirectory.com/skills/for/developers
- type: VulnerabilityDisclosure
  url: security/skillsdirectory-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/skillsdirectory-com-domain-security.yml
- type: Website
  url: https://www.skillsdirectory.com/
- type: Documentation
  url: https://www.skillsdirectory.com/docs
- type: APIReference
  url: https://www.skillsdirectory.com/api-docs
- type: GettingStarted
  url: https://www.skillsdirectory.com/docs/getting-started
- type: MCPServer
  url: https://www.skillsdirectory.com/api/mcp
- type: LLMsTxt
  url: https://www.skillsdirectory.com/llms.txt
- type: Pricing
  url: https://www.skillsdirectory.com/pro
- type: Blog
  url: https://www.skillsdirectory.com/blog
- type: TermsOfService
  url: https://www.skillsdirectory.com/terms
- type: PrivacyPolicy
  url: https://www.skillsdirectory.com/privacy
- type: About
  url: https://www.skillsdirectory.com/about
- type: Sitemap
  url: https://www.skillsdirectory.com/sitemap.xml
- type: RobotsTxt
  url: https://www.skillsdirectory.com/robots.txt
apis:
- aid: skillsdirectory-com:skills-directory-api
  name: Skills Directory API
  description: Key-authenticated REST API (v1) to list, search (including Pro semantic search) and retrieve agent skills with
    their security grades, list categories, read key usage statistics, and scan a skill (ZIP, SKILL.md text or GitHub URL)
    for a security grade in CI. Free 100 requests/day, Pro 1,000, Enterprise 10,000. No machine-readable contract is published.
  humanURL: https://www.skillsdirectory.com/api-docs
  baseURL: https://www.skillsdirectory.com/api/v1
  tags:
  - Agent Skills
  - Security Scanning
  properties:
  - type: Documentation
    url: https://www.skillsdirectory.com/api-docs
  - type: APIReference
    url: https://www.skillsdirectory.com/api-docs
- aid: skillsdirectory-com:registry-api
  name: Skills Directory Registry API
  description: Public, unauthenticated JSON API for CLI tools (designed for openskills) to list, search and fetch skills from
    the Skills Directory registry.
  humanURL: https://www.skillsdirectory.com/docs/registry-api
  baseURL: https://www.skillsdirectory.com/api/registry
  tags:
  - Agent Skills
  - Registry
  properties:
  - type: Documentation
    url: https://www.skillsdirectory.com/docs/registry-api
- aid: skillsdirectory-com:skillsdirectory-com-categories-api
  name: Skills Directory Categories API
  description: The Categories API from Skills Directory — 1 operation(s) for categories.
  humanURL: https://www.skillsdirectory.com/api-docs
  baseURL: https://www.skillsdirectory.com/api/v1
  tags:
  - Categories
  properties:
  - type: OpenAPI
    url: openapi/skillsdirectory-com-categories-api-openapi.yml
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-request-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-v1-skills-slug-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-slug-response-schema.json
- aid: skillsdirectory-com:skillsdirectory-com-registry-api
  name: Skills Directory Registry API
  description: The Registry API from Skills Directory — 2 operation(s) for registry.
  humanURL: https://www.skillsdirectory.com/api-docs
  baseURL: https://www.skillsdirectory.com/api/v1
  tags:
  - Registry
  properties:
  - type: OpenAPI
    url: openapi/skillsdirectory-com-registry-api-openapi.yml
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-request-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-v1-skills-slug-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-slug-response-schema.json
- aid: skillsdirectory-com:skillsdirectory-com-scan-api
  name: Skills Directory Scan API
  description: The Scan API from Skills Directory — 1 operation(s) for scan.
  humanURL: https://www.skillsdirectory.com/api-docs
  baseURL: https://www.skillsdirectory.com/api/v1
  tags:
  - Scans
  tags_raw:
  - Scan
  properties:
  - type: OpenAPI
    url: openapi/skillsdirectory-com-scan-api-openapi.yml
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-request-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-v1-skills-slug-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-slug-response-schema.json
- aid: skillsdirectory-com:skillsdirectory-com-skills-api
  name: Skills Directory Skills API
  description: The Skills API from Skills Directory — 3 operation(s) for skills.
  humanURL: https://www.skillsdirectory.com/api-docs
  baseURL: https://www.skillsdirectory.com/api/v1
  tags:
  - Skills
  properties:
  - type: OpenAPI
    url: openapi/skillsdirectory-com-skills-api-openapi.yml
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-request-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-v1-skills-slug-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-slug-response-schema.json
- aid: skillsdirectory-com:skillsdirectory-com-stats-api
  name: Skills Directory Stats API
  description: The Stats API from Skills Directory — 1 operation(s) for stats.
  humanURL: https://www.skillsdirectory.com/api-docs
  baseURL: https://www.skillsdirectory.com/api/v1
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/skillsdirectory-com-stats-api-openapi.yml
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-request-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-post-api-v1-scan-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-v1-skills-slug-response-schema.json
  - type: JSONSchema
    url: json-schema/skillsdirectory-com-get-api-registry-slug-response-schema.json
x-coverage:
  state: gated
  reason: partner-login
  method: derived
  generated: '2026-10-13'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company serves an API surface but requires credentials before any description of it can be read
  evidence:
  - url: https://api.skillsdirectory.com/api/mcp
    status: 401
  - url: https://www.skillsdirectory.com/api/mcp
    status: 401
  - url: https://www.skillsdirectory.com/
    status: 200

Skills Directory API — frequently asked questions

Does Skills Directory have an API?

Yes. APIs.io lists 7 APIs from Skills Directory, including Skills Directory API, Skills Directory Registry API and Skills Directory Categories API, and 4 more.

Is there an OpenAPI specification for the Skills Directory API?

Yes. APIs.io indexes 5 OpenAPI specifications for Skills Directory, each linked for download from this page.

How do I authenticate with the Skills Directory API?

Skills Directory uses bearer-token authentication (apiKey/http-bearer · 2 schemes). The details are profiled on APIs.io as Skillsdirectory Com Authentication.

How much does the Skills Directory API cost?

Skills Directory publishes its prices; its Free plan is $0 as of 2026-10-13. APIs.io lists 3 pricing plans for Skills Directory, with each plan's price, limits and inclusions under Pricing on this page.

Does Skills Directory have an MCP server?

Yes. APIs.io lists 1 MCP server for Skills Directory.

Is the Skills Directory API ready for AI agents?

Skills Directory has a Kin Score of 42.0 out of 100 (developing) and an Agent Readiness score of 28.4 (agent-aware), scored by API Evangelist on 2026-11-06.

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