Kaiva Bridge MCP server

Kaiva Bridge

Kaiva Bridge turns your API, database or documents into a managed MCP server that Claude, ChatGPT, Cursor, VS Code and other AI clients can use. This page covers the Kaiva Bridge connector, ai.kaiv/bridge, first; the command-line tool follows.

Kaiva Bridge as an MCP connector (ai.kaiv/bridge)

Kaiva Bridge is also an MCP server itself, so your AI client can create and manage MCP servers from inside a chat. It is listed in the official MCP Registry as ai.kaiv/bridge and in Claude's connector directory.

OpenAPI spec URL) and reintrospect_server (refreshes a server's tools when the API changes).

• Address: https://api.kaiv.ai/api/bridge/manage/mcp (Streamable HTTP)
• Sign-in: OAuth 2.1 with your Kaiva Bridge account (free, no card). No key to copy.
• Tools: listmyservers, getserver, createserver (drafts a server from an

The connector drafts and lists. Publishing a server and switching its tools on happen in the console, by you.

VS Code and GitHub Copilot: click Add to VS Code on kaiv.ai/bridge, or run MCP: Add Server in VS Code with the address above, then sign in when asked. Claude: claude.ai/directory/kaiva-bridge. Claude Code: claude mcp add --transport http --scope user kaiva-bridge https://api.kaiv.ai/api/bridge/manage/mcp. Cursor and ChatGPT: the Add menu on kaiv.ai/bridge.

Then ask: "List my Kaiva Bridge servers" or "Create a Kaiva Bridge server from https://petstore3.swagger.io/api/v3/openapi.json".

The command-line tool

Publish any API or database as a live MCP server, from your terminal.

Kaiva Bridge turns an OpenAPI spec, a database (PostgreSQL, MySQL, MariaDB or SQL Server) or a remote MCP server into a managed MCP server your agents can call. This CLI drives it over the Management API. Every setup command is safe to run again.

For your coding agent

Connect your AI agent to APIs, databases and documents with Kaiva Bridge. Install the skill so your coding agent can set up managed MCP connections for you. Try public APIs without an account.

Works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and other compatible coding agents.

npx skills add ai-kaiva/bridge

Install

Nothing to install. Node 18+ has everything:

npx @kaiva/bridge help

Try it with no account

For a public API spec, one command gives you a working MCP server. No account, no login:

npx @kaiva/bridge try --openapi https://petstore3.swagger.io/api/v3/openapi.json

You get the server's address, a key for that one server, and a claim link. The server offers only the spec's GET operations, and lasts 72 hours or 500 calls. Open the claim link to keep it in your workspace: it keeps its address and your plan's limits apply. The key stops working at claim, so connect your AI client again from the console. Then you can add an API key and switch on other operations. Coding agents can do this themselves (--json prints one JSON object).

In a cloud agent sandbox (Codex cloud, Claude Code on the web), allow the domains api.kaiv.ai and registry.npmjs.org first: their network access is off or limited by default.

Claude Code plugin

claude plugin marketplace add ai-kaiva/bridge
claude plugin install kaiva-bridge@kaiva

Or copy just the skill: npx @kaiva/bridge skill install.

Postgres on your machine, no account

For a Postgres database that only the AI clients on your machine use, Kaiva Postgres MCP is a free, open-source MCP server that runs locally and only reads. It replaces the archived @modelcontextprotocol/server-postgres: change the package name and nothing else changes.

claude mcp add postgres -- npx -y @kaiva/postgres-mcp postgresql://localhost/mydb

Shortened. The full README is on GitHub.