MCPBundles Blog

Guides for AI agents & real tools

Workflow stories, launch notes, and practical patterns for connecting chat to production systems.

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IRS 990 Search: Find Nonprofit Revenue, Assets, Officer Pay, and Filings

Search IRS 990 nonprofit financial filings from AI agents or REST. Revenue, assets, officer pay, and program ratios for grant research, nonprofit analysis, and due diligence workflows.

Apr 26, 20264 min read

MCP

Lobbying Disclosure Automation: LD-2 Filings, Federal Lobbying Tools & AI Agents

Automate federal lobbying disclosure research from AI agents or REST. Search LD-2 filings, registrants, clients, and lobbying spend—built for compliance teams, policy analysts, and lobbying research platforms.

Apr 26, 20264 min read

MCP

Verify 501(c)(3) Status in AI Agents — IRS Nonprofit Lookup API

Look up IRS tax-exempt organizations by name or EIN from AI agents or REST. Structured nonprofit identity data for grantmaking, due diligence, and developer workflows—not a free IRS search mirror.

Apr 26, 20264 min read

MCP

Sanctions Screening API: AML, KYC & OFAC Watchlist Search for AI Agents

Run AML, KYC, and denied-party screening from AI agents or REST. Search normalized OFAC and global watchlist records inside onboarding, vendor review, and compliance workflows.

Apr 26, 20264 min read

MCP

Rating MCP Server Quality: How We Score Tools, Skills & Annotations

Two recent arXiv papers show 97% of MCP tool descriptions have at least one quality smell and 73% of servers reuse tool names. Here is the LLM-judge rubric MCPBundles runs on every published server, what it scores, how MCP annotations factor in, and how we surface results.

Apr 19, 202610 min read

MCP

Substack MCP Server: Read Publications, Full Posts & Personalized Feeds with AI (4 Tools)

There is no official Substack MCP. MCPBundles hosts 4 Substack MCP tools — browse any publication's posts, read full article content, explore 31 categories, and access your personalized reader feed.

Apr 11, 20265 min read

MCP

arXiv MCP Server: Search Papers, Read Abstracts & Full PDFs with AI (4 Tools, No Auth)

There is no official arXiv MCP server. MCPBundles hosts 4 arXiv MCP tools — search papers with advanced query syntax, get metadata by ID, batch fetch up to 20 papers, and read full PDFs — no API key needed.

Apr 11, 20267 min read

MCP

MCP Apps Explained: Interactive UIs for AI Tools (Guide)

What is an MCP app? Learn how MCP Apps turn tool outputs into rich HTML dashboards and forms inside Claude, ChatGPT, and other clients — architecture, examples, and how to build with mcpbundles-app-ui.

Apr 11, 20267 min read

MCP

X (Twitter) MCP Server: Full-Archive Search & AI-Powered Social Workflows

There is no official Twitter MCP server. MCPBundles exposes X API v2 as MCP tools: App Bearer Token for read-only full-archive search, or OAuth 2.0 (PKCE) for posting, likes, retweets, follows, and bookmarks.

Apr 11, 20266 min read

MCP

Reddit MCP Server: Browse, Search & Act on Reddit with AI (OAuth2, 36+ Tools)

No official Reddit MCP exists. MCPBundles hosts 36+ Reddit MCP tools with OAuth2, three permission tiers (Read, Engage, Full Access), and 60 req/min rate limits — for Claude, ChatGPT, Cursor, and any MCP client.

Apr 11, 20267 min read

MCP

Grafana MCP Server: Monitor, Debug & Explore Your Infrastructure with AI

Connect Grafana to Claude, ChatGPT, Cursor, or any AI agent via MCP. Search dashboards, query datasources, manage alerts, and annotate events — with local proxy support for private Grafana instances.

Apr 11, 20266 min read

MCP

Snowflake MCP Server: Query, Explore & Manage Your Data Warehouse with AI

Connect Snowflake to Claude, ChatGPT, Cursor, or any AI agent via MCP. Purpose-built tools for SQL execution, schema exploration, warehouse management, and query history — all through the Snowflake SQL REST API.

Apr 11, 20266 min read

MCP

Supabase MCP Server: How to Connect Supabase to Claude, Cursor & Any AI Agent

Set up the Supabase MCP server to manage databases, storage, edge functions, and auth from any AI agent. Official server setup guides for Claude, Cursor, and ChatGPT, plus hosted access through MCPBundles.

Apr 11, 20264 min read

MCP

Linear MCP Server: How to Connect Linear to Claude, ChatGPT, Cursor & More

Set up the Linear MCP server to manage issues, projects, and cycles from any AI agent. Official remote server with OAuth, hosted access through MCPBundles, and setup guides for Claude, ChatGPT, and Cursor.

Apr 11, 20264 min read

MCP

PostgreSQL MCP Server: Query, Explore & Profile Your Database with AI

Connect PostgreSQL to Claude, ChatGPT, Cursor, or any AI agent via MCP. 20+ tools for queries, schema exploration, data profiling, index analysis, and data quality — with local proxy support for localhost databases.

Apr 11, 20265 min read