mcpField
L
lockspec

lockspec

Local
github.com/LockSpecDeveloper Tools
Repository

About lockspec

lockspec is an MCP server that gives coding agents version-pinned context from OpenAPI 3.0 and 3.1 specifications. It serves exact endpoint and type details and checks draft requests against a locally stored snapshot.

Key features

  1. 01Load and pin OpenAPI specifications
  2. 02Find endpoints and named types
  3. 03Retrieve exact request and response shapes
  4. 04Validate draft calls against a spec
  5. 05Compare and switch spec versions

Use cases

  1. 01Ground API calls in a chosen specification version
  2. 02Check draft requests for structural errors
  3. 03Inspect differences between API versions

MCP support

An MCP server that exposes OpenAPI specification loading, lookup, validation, and version-management tools to MCP clients. It runs locally over stdio, and stores loaded specifications on the machine.

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config
{
  "mcpServers": {
    "lockspec-lockspec": {
      "command": "npx",
      "args": [
        "-y",
        "lockspec"
      ]
    }
  }
}
Run commandnpx -y lockspec

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages
npmlockspec1.0.1

Tools

No tool list yet

Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.

Details

The maintainer has not added details yet. Check the README in the repository.

Comments

Markdown supported

New to MCP?

From what the protocol is to installing your first server, these answers cover most first questions.

An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.