Pure JavaScript and Asynchronous Firebird client for Node.js.
Pure JavaScript and Asynchronous Firebird client for Node.js. Exposed over MCP by the node mcp server, that capability becomes something an assistant can invoke while it works, not something you go and do afterwards.
[NPM version][npm-version-image]][npm-url] [NPM downloads][npm-downloads-image]][npm-url] [Mozilla License][license-image]][license-url]
Everything the assistant can do here goes through one of these:
Methods — The Methods tool exposed by this serverClassic — // db = DATABASE db.query('SELECT * FROM TABLE', function (err, result) { // IMPORTANT: close the connection db.detach; }); });Pooling — // Get a free pool pool.get(function (err, db) { if (err) throw err;Installation goes through your MCP client rather than a global install: point it at node-firebird on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.
You will need 2 environment variables: FIREBIRD_HOST, DATABASE_URL. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Among the database access options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Node's toolset — Methods, Classic, Pooling — is a fair guide to whether it matches your workflow. It is maintained by mariuz; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Node's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| Methods | The Methods tool exposed by this server. |
| Classic | // db = DATABASE db.query('SELECT * FROM TABLE', function (err, result) { // IMPORTANT: close the connection db.detach(); }); }); |
| Pooling | // Get a free pool pool.get(function (err, db) { if (err) throw err; |
{
"mcpServers": {
"firebird": {
"command": "npx",
"args": ["-y", "node-firebird"],
"env": {
"FIREBIRD_HOST": "your-value",
"DATABASE_URL": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| FIREBIRD_HOST | Endpoint or connection string the server talks to. | Optional |
| DATABASE_URL | Endpoint or connection string the server talks to. | Yes |
Read-only SQL access to Postgres — let your assistant inspect schemas and answer questions from real data.
Manage your whole Supabase project in conversation — database, auth, storage, Edge Functions and branches.
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.
Serverless Postgres with database branching — point your assistant at Neon and let it work on disposable copies.