# OpenAPI Schema Explorer

> Use this tool when you need to efficiently explore and navigate large OpenAPI and Swagger specifications, solving the problem of excessive token consumption when working with complex APIs. It takes OpenAPI and Swagger specs as input, either from local files or remote URLs, and outputs navigable resources with URI-based references in configurable formats such as JSON, YAML, or minified JSON. This tool is ideal for use cases where AI assistants require token-efficient access to API structures without loading entire specs into their context windows.

Canonical page: https://skillsregistry.net/skills/kadykov-openapi-schema-explorer  
JSON: https://api.skillsregistry.net/v1/skills/kadykov-openapi-schema-explorer

## Description

MCP OpenAPI Schema Explorer is a TypeScript server that provides token-efficient access to OpenAPI (v3.0) and Swagger (v2.0) specifications. Developed by Aleksandr Kadykov, it transforms large API specifications into navigable MCP resources with URI-based references, allowing AI assistants to explore API structures without loading entire specs into their context windows. The server loads specs from local files or remote URLs, automatically converts Swagger v2.0 to OpenAPI v3.0, and returns information in configurable formats (JSON, YAML, or minified JSON), making it particularly valuable for working with complex APIs that would otherwise consume excessive tokens.

## Trust

- **Trust score (0–1):** 0.96
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** file-system
- **Updated:** 2026-09-28

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/kadykov-openapi-schema-explorer)
- **Repository:** <https://github.com/kadykov/mcp-openapi-schema-explorer>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "kadykov-openapi-schema-explorer"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/kadykov-openapi-schema-explorer` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/kadykov-openapi-schema-explorer/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt