"Using web search functionality in Claude desktop application" matching MCP connectors:

DNS Doctor: scan and fix email authentication (SPF, DMARC, DKIM, MX, blacklists). Validated fixes.

400+ pay-per-call tools + 100 skill packs. USDC + USDG on 10 chains, or free via PoW.

Build personal interactive apps with real URLs and persistent storage, using any AI.

Hosted, OAuth-gated endpoint for quantakrypto's post-quantum crypto tools: scan code for quantum-vulnerable cryptography (RSA/ECDH/ECDSA/DH) and get NIST ML-KEM/ML-DSA/SLH-DSA migration guidance over authenticated HTTP — nothing to install. Sign-in required (Google/GitHub/email). Same tools as the open-source @quantakrypto/mcp server; source at github.com/quantakrypto/pqc-tools.

20 live tools for KAZM 106.5 FM & 780 AM in Sedona, AZ — now playing, song requests, weather, fire restrictions, road conditions, concerts, emergency alerts, local news, air quality, and more. Streamable HTTP, no auth required.

Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting

AI Visibility and Content Intelligence tools for Claude and MCP-compatible agents.

Concierge for AI agents: takes action in the physical world — book, order, register, resolve.

Ready for a new way to bill pay? Pay any US bill in a snap, right from your AI assistant. Describe or snap a photo of your bill (electric, water, gas, internet, phone, medical, credit card, rent, parking tickets, traffic violations and more) and Papaya reads it, then hands you a secure link to pay by card. Fast, secure, and no juggling twelve logins, with full or partial payments and status updates. Available in the US only. Powered by Papaya (papayapay.com).

Meta-search MCP for x402 agent-payable services -- find paid APIs across every registry.

Pay any US bill in a snap, right from your chat — utilities, medical, rent, parking tickets & more.

Government tender search for AI agents. UK, EU and US procurement opportunities.

Search scientific papers with structured experimental data from full-text studies

Read-only ESPN, Sleeper, and Fantrax fantasy leagues for Claude, ChatGPT, and other AI tools.

Generate, search, and manage codebase documentation on DocuWriter.ai. 72 tools incl. Autopilot.

CatchAll is a web search API built for comprehensive event retrieval — not ranked results, but all matching records.

User-owned memory for AI agents, Copilot, Claude, IDEs, CLIs, and chat apps over remote MCP.

Global stock research, ML forecasts, valuation signals, screeners & portfolio tracking in Claude

Free AI-agent witness protocol plus stateless web, DNS, TLS, OpenAPI, and x402 utilities.

Docs: https://docs.keenable.ai/mcp-server Keenable is a free, remote MCP server that gives agents access to the web index. Search the web with ranked results and date/site filters, then fetch any indexed page as clean markdown. Works out of the box with no account or API key.