Atlas / MCP servers / ivo-toby / OpenAPI

OpenAPIBLOCK

mcp/ivo-toby/openapi-1

MCP Server (Model Context Protocol) for turning OpenAPI specifications into a MCP Resource

Verdict
BLOCK
Grade
D
Trust score
69 /100
Exposed tools
13 11r · 2w · 0d
Transport
stdio · streamable-http
License
MIT
Stars
297
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

[](https://smithery.ai/server/@ivo-toby/mcp-openapi-server)

A Model Context Protocol (MCP) server that exposes OpenAPI endpoints as MCP tools, along with optional support for MCP prompts and resources. This server allows Large Language Models to discover and interact with REST APIs defined by OpenAPI specifications through the MCP protocol.

📖 Documentation

  • User Guide - For users wanting to use this MCP server with Claude Desktop, Cursor, or other MCP clients
  • Library Usage - For developers creating custom MCP servers using this package as a library
  • Developer Guide - For contributors and developers working on the codebase
  • AuthProvider Guide - Detailed authentication patterns and examples

User Guide

This section covers how to use the MCP server as an end user with Claude Desktop, Cursor, or other MCP-compatible tools.

Overview

This MCP server can be used in two ways:

  1. CLI Tool: Use npx @ivotoby/openapi-mcp-server directly with command-line arguments for quick setup
  2. Library: Import and use the OpenAPIServer class in your own Node.js applications for custom implementations

The server supports two transport methods:

  1. Stdio Transport (default): For direct integration with AI systems like Claude Desktop that manage MCP connections through standard input/output.
  2. Streamable HTTP Transport: For connecting to the server over HTTP, allowing web clients and other HTTP-capable systems to use the MCP protocol.

Quick Start for Users

Option 1: Using with Claude Desktop (Stdio Transport)

No need to clone this repository. Simply configure Claude Desktop to use this MCP server:

  1. Locate or create your Claude Desktop configuration file:
  2. On macOS: `~/Library/Application Support/Claude/claudedesktopconfig.jso
Read from source at commit 13513e077f77OBSERVED · 2026-10-05
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.

claude-code
claude mcp add openapi-mcp-server --env BEATPORT_TOKEN=${BEATPORT_TOKEN} --env CLIENT_KEY_PASSPHRASE=${CLIENT_KEY_PASSPHRASE} --env CLIENT_KEY_PATH=${CLIENT_KEY_PATH} --env REJECT_UNAUTHORIZED=${REJECT_UNAUTHORIZED} -- npx -y @ivotoby/[email protected]
claude-desktop
{
  "mcpServers": {
    "openapi-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@ivotoby/[email protected]"
      ],
      "env": {
        "BEATPORT_TOKEN": "${BEATPORT_TOKEN}",
        "CLIENT_KEY_PASSPHRASE": "${CLIENT_KEY_PASSPHRASE}",
        "CLIENT_KEY_PATH": "${CLIENT_KEY_PATH}",
        "REJECT_UNAUTHORIZED": "${REJECT_UNAUTHORIZED}"
      }
    }
  }
}
03

Exposed tools (13)

11 read · 2 write · 0 destructive.

ToolRiskDescription
List-UsersreadCustom users
addwriteAdd two numbers
api-docsreadFull API docs
custom-usersreadCustom users
get-api-endpoint-schemareadGet the JSON schema for a specified API endpoint
greetreadA greeting prompt
invoke-api-endpointwriteInvoke an API endpoint with provided parameters
list-api-endpointsreadList all available API endpoints
list-usersreadCustom users
namereadPerson
otherreadSum
qry-alerts-qry-alerts-pstreadQuery alerts
sumreadSum
04

Trust audit

BLOCKgrade D · trust 69/100 Do not install this without reading the findings. The audit found something that could harm you or your machine.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeFAIL
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
declared (8 observation(s))
Shell
declared (2 observation(s))
Dependencies
not all pinned
Secrets in source
none-found

Findings (15)

HIGHCode injection · code.deserialize · CWE-78, CWE-94, CWE-95
src/content-loader.ts:54
return yaml.load(content) as T
Why it matters. deserialises untrusted bytes into live objects
Fix. use json or yaml.safe_load
HIGHCode injection · code.deserialize · CWE-78, CWE-94, CWE-95
src/openapi-loader.ts:154
const yamlResult = yaml.load(specContent, {
Why it matters. deserialises untrusted bytes into live objects
Fix. use json or yaml.safe_load
LOWInventory / provenance · inv.hidden_file · CWE-1104
.prettierrc.json
.prettierrc.json
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWInventory / provenance · inv.hidden_file · CWE-1104
.releaserc
.releaserc
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWNetwork egress · net.tls_off · CWE-200, CWE-319
test/server.test.ts:917
rejectUnauthorized: false,
Why it matters. certificate verification is disabled
Fix. leave verification on
LOWNetwork egress · net.tls_off · CWE-200, CWE-319
test/server.test.ts:930
rejectUnauthorized: false,
Why it matters. certificate verification is disabled
Fix. leave verification on
LOWNetwork egress · net.tls_off · CWE-200, CWE-319
test/server.test.ts:947
rejectUnauthorized: false,
Why it matters. certificate verification is disabled
Fix. leave verification on
LOWNetwork egress · net.tls_off · CWE-200, CWE-319
test/server.test.ts:953
rejectUnauthorized: false,
Why it matters. certificate verification is disabled
Fix. leave verification on
LOWNetwork egress · net.tls_off · CWE-200, CWE-319
test/server.test.ts:988
rejectUnauthorized: false,
Why it matters. certificate verification is disabled
Fix. leave verification on
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
examples/auth-provider-example/package.json
@ivotoby/openapi-mcp-server, @modelcontextprotocol/sdk, axios, typescript, @types/node
Why it matters. 5 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
examples/basic-library-usage/package.json
@ivotoby/openapi-mcp-server, @modelcontextprotocol/sdk, typescript, @types/node
Why it matters. 4 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
examples/beatport-example/package.json
@ivotoby/openapi-mcp-server, @modelcontextprotocol/sdk, axios, typescript, @types/node
Why it matters. 5 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
package.json
@modelcontextprotocol/sdk, axios, openapi-types, yargs, @eslint/js, @semantic-release/commit-analyzer, @semantic-release/github, @semantic-release/npm
Why it matters. 28 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWPrompt injection · prompt.authority_framing · CWE-94, CWE-1427
SECURITY-FIXES.md:108
- **Issue:** pr-check.yml used default permissions (full access)
LOWPrompt injection · prompt.credential_read · CWE-94, CWE-1427
examples/auth-provider-example/README.md:26
"initial-access-token", // Initial access token
Why it matters. asks the agent to read credentials

Gates applied: no_behavioural_pass.

Audited 2026-10-05 · audit v0.4.1 · source sha 13513e077f77full audit observations/trust-audit/mcp-server/ivo-toby__openapi-1.json · Report an issue / request a re-scan
05

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-0513513e077f77BLOCKD69first audit
06

Questions

What is the OpenAPI MCP server?

MCP Server (Model Context Protocol) for turning OpenAPI specifications into a MCP Resource

What tools does OpenAPI expose?

13 in total: 11 read-only, 2 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is OpenAPI safe to connect to an agent?

No — not without reading the findings first. The audit graded it D (69/100) and found 2 critical or high issues in the source. Each one is listed on this page with the file and line it is on.

What credentials does OpenAPI need?

It reads BEATPORT_TOKEN, CLIENT_KEY_PASSPHRASE, CLIENT_KEY_PATH and REJECT_UNAUTHORIZED from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.

How does OpenAPI run?

It speaks stdio and streamable-http, so it runs as a local process your client starts. It is published on npm as @ivotoby/openapi-mcp-server at 0.1.0.

How current is this page?

The grade is for one exact copy of the source (13513e077f77), read on 2026-10-05. The repository is watched and re-audited when it changes.

Advertisement