"Methods to Test API Endpoints" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Chartbrew connects databases and APIs to dashboards and reports. Its official MCP server lets AI assistants find dashboards and datasets, read chart results, explore supported data sources, and create datasets and chart previews. Connect directly to the hosted server with OAuth or a Chartbrew API key. Access follows your Chartbrew team, role, and approved permissions. Review chart previews in Chartbrew before adding them to a dashboard. No local installation is required.
Read-only access to your own crypto portfolio across 11+ exchanges and 20+ chains: holdings, full history, FIFO cost basis and P&L, fees and income. Ask Claude or ChatGPT about your portfolio; the connector can never trade, move funds or act as a login.
Cookieless web analytics for your sites: visitors, pages, sources, goals and speed.
No-signup IoT backend: device names, sensor readings, history and live charts. No API key needed.
Turn Mermaid or an indented outline into an editable flowchart link. Completely free, no API key.
Live, editable canvas for AI agents — author graphs via MCP, then watch and reroute runs live.
Validate Mermaid syntax and get error details your coding agent can use to correct a diagram. Check the source again before adding it to your documentation. Validation works without saving a diagram. Render SVG, PNG, or PDF, save diagrams privately, and publish selected snapshots. Your existing agent writes and corrects the source; MermaidDesk checks and renders it. Validation checks syntax, not whether a diagram accurately describes a system. Connect through MCP with Streamable HTTP and a scoped bearer API key. Enable MERMAID_RENDER for validation and rendering. A REST API is also available. MCP setup: https://www.mermaiddesk.com/developers/mcp REST API guide: https://www.mermaiddesk.com/developers/api
Backtest and analyze any portfolio, incl. nested multi-strategy ones: returns, risk, factors, guides
Human-agent interface for projects: you prioritize and decide, your AI agents execute. Over MCP.
Web and revenue analytics: traffic, goals, funnels, journeys and revenue by source. OAuth sign-in.
Query your databases and build dashboards, Streamlit apps and reports your team logs in to.
Performance, risk, comparisons, backtests and screening for US stocks and ETFs, with charts.
Create and manage online surveys and analyze responses from Claude, ChatGPT, Cursor and other MCP clients. Connect your QUESTIONSTAR account via OAuth. Supports survey design, response collection, statistical analysis and reporting. Hosted in Germany. Free plan: all survey features, one active survey, up to 50 responses per survey. Interface: English, German and Russian; surveys in any language. Docs: https://questionstar.com/help/integrations/mcp-ai/
Ask your website analytics in plain language and set up funnels, features and dashboards.
MappaIQ is the first open marketplace for commercial real estate listings with an MCP connector, letting brokers and buyers search live CRE listings from Claude or ChatGPT. Brokers drop in a spreadsheet and get a live, shareable map with parcel data — free to start at mappaiq.com.
Turn your data into map images of countries, states, counties and ZIP codes with Ultimaps MCP server. Each map comes with a link to Ultimaps Studio, where you can keep editing it, export it, or publish an interactive version. No account needed: 30 maps per hour, PNG up to 1600px, with Ultimaps attribution.
Turn data into infographics (PNG/SVG): 90+ templates, or KPI cards, charts, timelines and maps.
Live US sector rotation: 30 sector baskets ranked every session, versioned rosters, daily record.
Geospatial workspace: manage sources and maps, run spatial analysis, and publish interactive maps
US stock fundamentals: SEC financial statements, valuation series, summaries, screens, chart images.
20 slide-ready chart tools: Gantt, SWOT, 2×2, RACI, org chart, mind map, fishbone. Free.
Audit a data file before publishing: one light per figure. Your data never reaches the server.
OWID MCP — Our World in Data chart/indicator access (free, no auth)
Make a web map of places, routes and areas, and get a link to share it.
Market Recap MCP — a one-call 'what happened in markets' snapshot.
Retirement Monte Carlo, tax-aware withdrawals, 2026 tax calculators, RMD, IRMAA, every-state tax.
Create choropleth, category and pin maps of countries, states, counties and ZIP codes as images.
Create live scoreboards, connect with OAuth, and prepare checkout or Stripe CLI payments.
Grind settings for 200+ home coffee grinders, conversion between them, and help choosing one.
