"PostHog: Open-source product analytics platform" matching MCP connectors:

Search domain availability and pricing, straight from chat, then open a link to register.

Agent intake desk for property renovation. Read only, CORS open, fail closed, receipts recompute.

Riddle.com is a no-code platform for quizzes, surveys, personality tests, prediction games, interactive graphics, and leaderboards. Use the MCP to create, edit and analyze content.

Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev

Provides a platform-agnostic specification of the technical features every decent website should have

Your app's translations in Tolgee: search keys, create translations, trigger machine translation

Check a product CSV, handles, variant matrices and metafield keys. 4 of 6 free.

Paste-your-data analytics: CSV profiling, A/B tests, correlation, growth. 4 of 7 free.

Real-time options analytics MCP server. Access gamma exposure (GEX), delta exposure (DEX), vanna exposure (VEX), dealer positioning, volatility surfaces, Black-Scholes greeks, implied volatility solver, and key options levels for any US equity — all through natural language. 14 read-only tools covering exposure metrics, volatility analysis, pricing, and market data.

Paste-your-data analytics over MCP, computed in code: csv_profile profiles columns and data quality, ab_test runs two-proportion z-tests, correlation and growth_rates cover the basics, with funnel_report, cohort_retention, and forecast_trend in the premium tier. No uploads, no external calls, no data retention.

20 content-creation persona and skill products plus real writing analyzers over MCP: analyze_writing measures readability and style issues, headline_analyzer ranks up to 20 headlines, reading_time and social_length_check validate platform fit, and get_free_skill loads any product's complete free gateway skill.

Build and deploy websites, Telegram and Discord bots from chat via the DreamAgent platform.

Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.

CDR Explorer allows access to the Australian Consumer Data Right Product Data from Banks and Non-Bank Lenders

Web search API: find every relevant event across the open web, not just the top results.

Find EV charging stations, detail, and reliability check-ins via the global Open Charge Map.

Barcode lookup, nutrition search, and product comparison for 3M+ crowd-sourced food products.

Source-verified pet food regulations, recalls, nutrient standards and species care data.

Search 14.5M Smithsonian Open Access objects, get CC0 images, find cross-collection connections.

US consumer product recalls from the CPSC — hazards, remedies, and affected products.