Tools

Postman's official plugin: sets up the Postman MCP server so Claude Code can sync collections, run API tests and diagnose failures, generate client code, create mocks and docs, and run OWASP API security checks. Needs a Postman account.

Snowflake's official plugin: detects Snowflake-related requests and hands them to the Cortex Code CLI, whose 55+ built-in skills handle SQL, dynamic tables, data governance and more. Needs the cortex CLI installed and a Snowflake connection configured.

Official hosted MCP from the nonprofit Free Law Project: search US federal and state court opinions, dockets and judges, extract and verify case citations in documents, and subscribe to case alerts. Needs a free CourtListener account (browser sign-in); a lawyer should review results.

Browser Use's official plugin: connects the Browser Use MCP so Claude can drive your local Chrome or a cloud browser to browse, extract data, fill forms, test sites and take screenshots. Needs uv; cloud browsers need sign-in or an API key.

Langfuse's official plugin: uses hooks to send prompts, model calls, token usage and cost, tool calls and subagents from Claude Code sessions to Langfuse as traces for monitoring and review. Needs Langfuse keys (self-hosting supported) and uv or Python 3.10+.

Jotform's official hosted MCP: lets agents create and edit forms, list forms, and query or add submissions by criteria, handy for event sign-ups, surveys, permission slips and feedback. Nothing to install; OAuth sign-in (only workspace admins can install). Free accounts are rate-limited.

ModelScope's official MCP: search models, datasets, Studio apps, papers and MCP servers and view details, plus text-to-image and image-to-image generation. Needs a ModelScope API token.

From TUM's Chair of Geoinformatics (a 3DCityDB co-developer): query CityGML 3D city models in 3DCityDB v5 in plain language, covering both spatial and semantic attributes, with read-only SQL. Needs a deployed 3DCityDB database and Python; register it from the folder with your .env config.

Strips AI writing patterns from prose: filler openers, emphasis crutches, business jargon, formulaic contrasts, tricolons, em dashes and bold-first bullets, in favor of active voice and specifics. Scores reviews on five dimensions. Covers manuscripts, grants, blogs, newsletters and memos.

OpenCage's official MCP: geocode addresses and place names, reverse geocode coordinates (with admin area, time zone and more), and check API quota. For small lookups; use its CLI for batches. Needs an OpenCage API key (free trial), Node.js 20+, and manual setup from a repo clone.

SNOMED International's official MCP: search and validate SNOMED CT terms, browse concept hierarchies and expand value sets in the International, US, UK, Australian and other editions. Hosted, no account. Unlicensed use is evaluation only, not for coding records. Clinicians should review.

Vaquill's official legal research MCP: search US federal and state codes, CFR, constitutions, court rules and the Federal Register, resolve Bluebook citations to statute text, plus Indian law. Needs a credit-based API key (non-commercial users can request free credits). A lawyer must review.

PortSwigger's official Burp Suite extension that lets agents read proxy history, send HTTP requests and create Repeater tabs; with Burp Pro it can also read scan results and use Collaborator. Install from the BApp Store; listens on 127.0.0.1:9876 by default.

LogRocket's official plugin: when users report problems, agents pull up their session replays, network requests and errors and analyze the cause, so support doesn't have to keep asking for repro steps. Needs Claude Code and a site or app on paid LogRocket (14-day trial); sign in on first use.