PostmanSAFE
A Model Context Protocol (MCP) server that provides seamless integration with the Postman API. This package enables AI assistants and applications to interact with Postman workspaces, collections, requests, environments, and folders programmatically.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
A Model Context Protocol (MCP) server that provides seamless integration with the Postman API. This package enables AI assistants and applications to interact with Postman workspaces, collections, requests, environments, and folders programmatically.
[](https://www.npmjs.com/package/postman-mcp) [](https://opensource.org/licenses/MIT)
🚀 Features
📁 Workspace Management
- List all workspaces
- Get detailed workspace information
- Create new workspaces (personal/team)
- Update workspace metadata
📚 Collection Management
- List collections within workspaces
- Get collection details with full structure
- Create new collections
- Update collection metadata and variables
- Delete collections
🔧 Request Management
- Add new HTTP requests to collections
- Update existing requests (method, URL, headers, body)
- Move requests between folders
- Delete requests
- Support for all HTTP methods (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS)
🌍 Environment Management
- List environments in workspaces
- Get environment details and variables
- Create new environments with variables
- Update environment variables
- Delete environments
- Support for secret, default, and custom variable types
📂 Folder Organization
- Create nested folder structures
- Organize requests within folders
- Support for hierarchical folder paths
⚙️ Setup
1. Get Your Postman API Key
- Go to Postman Account Settings
- Click "Generate API Key"
- Give it a name and copy the generated key
2. MCP Configuration
For Claude Desktop
Add to your Claude Desktop configuration file (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):
{
"mcpServers": {
"postman": {
"command": "npx",
"args": ["postman-mcp"],
"env": {
"POSTM509733ecaa76OBSERVED · 2026-10-08Connect
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 mcp add postman-mcp --env POSTMAN_API_KEY=${POSTMAN_API_KEY} -- npx -y [email protected]{
"mcpServers": {
"postman-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"POSTMAN_API_KEY": "${POSTMAN_API_KEY}"
}
}
}
}Exposed tools (19)
6 read · 9 write · 4 destructive. Blast radius: 4 tools can delete or overwrite — an agent that can be talked into calling a tool can be talked into calling this one.
| Tool | Risk | Description |
|---|---|---|
add_request | write | Add a new request to a collection |
create_collection | write | Create a new collection |
create_environment | write | Create a new environment |
create_folder | write | Create a new folder in a collection |
create_workspace | write | Create a new workspace |
delete_collection | destructive | Delete a Postman collection |
delete_environment | destructive | Delete an existing environment |
delete_folder | destructive | Delete a folder from a collection |
delete_request | destructive | Delete a request from a collection |
get_collection | read | Get detailed information about a specific collection |
get_environment | read | Get detailed information about a specific environment |
get_workspace | read | Get detailed information about a specific workspace |
list_collections | read | List all collections in a workspace |
list_environments | read | List all environments |
list_workspaces | read | List all workspaces |
update_collection | write | Update collection metadata (name, description, variables) |
update_environment | write | Update an existing environment |
update_request | write | Update an existing request in a collection |
update_workspace | write | Update an existing workspace |
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | WARN |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- declared (1 observation(s))
- Network
- declared (1 observation(s))
- Shell
- none-observed
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (2)
delete_collection, delete_environment, delete_folder, delete_request
@modelcontextprotocol/sdk, axios, dotenv, zod, zod-to-json-schema, @types/node, tsx, typescript
Gates applied: no_behavioural_pass.
509733ecaa76full audit observations/trust-audit/mcp-server/salehkhatri__postman-2.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-08 | 509733ecaa76 | SAFE | B | 89 | first audit |
Questions
What is the Postman MCP server?
A Model Context Protocol (MCP) server that provides seamless integration with the Postman API. This package enables AI assistants and applications to interact with Postman workspaces, collections, requests, environments, and folders programmatically.
What tools does Postman expose?
19 in total: 6 read-only, 9 that write, and 4 that can delete or overwrite (delete_collection, delete_environment, delete_folder, delete_request). Every one is listed on this page with its risk.
Is Postman safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B. Separately from the audit: 4 of its tools can destroy data, so scope the token you give it to what you actually need.
What credentials does Postman need?
It reads POSTMAN_API_KEY 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 Postman run?
It speaks stdio, so it runs as a local process your client starts. It is published on npm as postman-mcp at 1.0.3.
How current is this page?
The grade is for one exact copy of the source (509733ecaa76), read on 2026-10-08. The repository is watched and re-audited when it changes.