You can access the MCP Manifest Linter (package.json) programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

1from apify_client import ApifyClient
2
3# Initialize the ApifyClient with your Apify API token
4# Replace '<YOUR_API_TOKEN>' with your token.
5client = ApifyClient("<YOUR_API_TOKEN>")
6
7# Prepare the Actor input
8run_input = {
9    "searchKeywords": [
10        "source-backed signal",
11        "buyer fit",
12    ],
13    "taskIntent": "buyer-ready-product-run",
14    "sourceMode": "startUrls",
15    "outputMode": "buyer-ready-records",
16    "startUrls": [{ "url": "https://raw.githubusercontent.com/modelcontextprotocol/servers/refs/heads/main/src/everything/package.json" }],
17    "requestTimeoutSecs": 30,
18    "maxRequestRetries": 2,
19    "sinceLastRun": False,
20    "deltaMode": True,
21}
22
23# Run the Actor and wait for it to finish
24run = client.actor("zentrafoundry/mcp-connector-policy-linter-v2").call(run_input=run_input)
25
26# Fetch and print Actor results from the run's dataset (if there are any)
27print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
28for item in client.dataset(run.default_dataset_id).iterate_items():
29    print(item)
30
31# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

MCP package.json lint — not a policy engine API in Python

The Apify API client for Python is the official library that allows you to use MCP Manifest Linter (package.json) API in Python, providing convenience functions and automatic retries on errors.

Install the apify-client

$pip install apify-client

Other API clients include:

MCP Manifest Linter (package.json) API in JavaScript

MCP Manifest Linter (package.json) API through CLI

MCP Manifest Linter (package.json) OpenAPI definition

MCP Manifest Linter (package.json) API

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quanmatrix/mcp-tool-trust-permission-schema-drift-intelligence

Use this Actor to monitor mcp tool trust, permission and schema drift changes and return decision-ready change signals. Compare MCP tool snapshots for permission expansion, schema drift and poisoning signals, then emit trust scores and ALLOW, REVIEW or BLOCK actions.