Connect your agent to any HTTP API on the fly — discover, map, and fetch typed data.
Connect your agent to any HTTP API on the fly — discover, map, and fetch typed data.
Point Liquid at a URL or a database and it works out the interface for you: discovers its shape, maps it to the fields you asked for, and handles auth, pagination and normalization — typed records, no client code. When the upstream drifts, it re-maps and keeps going. The same small API — fetch · query · write · sense — reaches web APIs, databases, other agents (MCP/A2A), email, and even IoT and industrial systems (MQTT, Modbus, OPC UA, BACnet). An LLM does the learning at setup (and on drift); the data path itself makes no model call.
Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| gRPC | ✅ unary + server-streaming (reflection) |
{
"mcpServers": {
"liquid": {
"command": "uvx",
"args": [
"liquid-mcp"
],
"env": {
"OPENAI_API_KEY": "YOUR_OPENAI_API_KEY"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| OPENAI_API_KEY | Declared in the maintainer’s client configuration. | Check documentation |
Inspect PostgreSQL schemas and run read-only queries with the archived MCP reference server. Review its maintenance status before choosing it.
Connect the Notion MCP server to search workspace content and work with pages and databases through Notion’s hosted OAuth service.
Use the Supabase MCP server to inspect database schemas, query project data and retrieve docs through a project-scoped connection.
Query, modify and analyse local SQLite databases in conversation — the fastest way to chat with a data file.
Metabase ships its own MCP endpoint — search your BI content, build and run queries, and save questions and dashboards without leaving the chat.
Official MongoDB server covering data, schemas and Atlas management — from find queries to spinning up clusters.