Numera MCP
Enables MCP clients to inspect, read, and write Numera workbooks locally without a browser, supporting .numera.json, .json, .csv, and .xlsx files.
README
Numera MCP
@vectojs/numera-mcp is the safe local-first Model Context Protocol adapter for
Numera workbooks. It lets an MCP client inspect workbooks, read bounded ranges,
and write validated cell batches without launching a browser or subprocess.
The published stdio executable requires Bun.
The server supports .numera.json, .json, .csv, and .xlsx files through
exact-pinned Numera Core and XLSX packages. It is intentionally local and does
not provide collaboration, accounts, cloud storage, or remote network access.
Run
numera-mcp --root /absolute/path/to/workbooks
The server uses stdio. Paths passed to tools are relative to --root. Mutation
tools require an expected input SHA-256 and a distinct, non-existing output
path, so a stale Agent cannot silently overwrite newer work.
Tools
numera_inspect_workbook: return the format, SHA-256, active sheet, sheet dimensions, populated-cell count, and used range.numera_read_range: return raw and display values for at most 10,000 cells.numera_write_cells: validate and atomically apply 1–1,000 typed cell writes to a new output workbook.
Development
bun install
bun run verify
npm pack --dry-run
Security
See SECURITY.md. Numera MCP treats workbook bytes, formulas, paths, and MCP arguments as untrusted input.
Recommended Servers
playwright-mcp
A Model Context Protocol server that enables LLMs to interact with web pages through structured accessibility snapshots without requiring vision models or screenshots.
Magic Component Platform (MCP)
An AI-powered tool that generates modern UI components from natural language descriptions, integrating with popular IDEs to streamline UI development workflow.
Audiense Insights MCP Server
Enables interaction with Audiense Insights accounts via the Model Context Protocol, facilitating the extraction and analysis of marketing insights and audience data including demographics, behavior, and influencer engagement.
VeyraX MCP
Single MCP tool to connect all your favorite tools: Gmail, Calendar and 40 more.
graphlit-mcp-server
The Model Context Protocol (MCP) Server enables integration between MCP clients and the Graphlit service. Ingest anything from Slack to Gmail to podcast feeds, in addition to web crawling, into a Graphlit project - and then retrieve relevant contents from the MCP client.
Kagi MCP Server
An MCP server that integrates Kagi search capabilities with Claude AI, enabling Claude to perform real-time web searches when answering questions that require up-to-date information.
E2B
Using MCP to run code via e2b.
Neon Database
MCP server for interacting with Neon Management API and databases
Exa Search
A Model Context Protocol (MCP) server lets AI assistants like Claude use the Exa AI Search API for web searches. This setup allows AI models to get real-time web information in a safe and controlled way.
Qdrant Server
This repository is an example of how to create a MCP server for Qdrant, a vector search engine.