Agent memory and a signed spending ledger: pay any x402 API, keep a provable receipt.
To add Tabularium to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 6 environment variables, listed below.
Install
npx -y tabularium-mcp@0.5.3Environment variables
TABULARIUM_PRIVATE_KEYSet in your MCP configTABULARIUM_MAX_SPEND_USDSet in your MCP configTABULARIUM_URLSet in your MCP configTABULARIUM_PAY_MAX_USDSet in your MCP configTABULARIUM_PAY_NETWORKSSet in your MCP configTABULARIUM_PUBKEYSet in your MCP configInstall with your client
claude mcp add tabularium --env TABULARIUM_PRIVATE_KEY=<YOUR_TABULARIUM_PRIVATE_KEY> --env TABULARIUM_MAX_SPEND_USD=<YOUR_TABULARIUM_MAX_SPEND_USD> --env TABULARIUM_URL=<YOUR_TABULARIUM_URL> --env TABULARIUM_PAY_MAX_USD=<YOUR_TABULARIUM_PAY_MAX_USD> --env TABULARIUM_PAY_NETWORKS=<YOUR_TABULARIUM_PAY_NETWORKS> --env TABULARIUM_PUBKEY=<YOUR_TABULARIUM_PUBKEY> -- npx -y tabularium-mcp@0.5.3
Run this in a terminal to add the server to Claude Code.
What this does
Tabularium exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
TABULARIUM_PRIVATE_KEY TABULARIUM_MAX_SPEND_USD TABULARIUM_URL TABULARIUM_PAY_MAX_USD TABULARIUM_PAY_NETWORKS TABULARIUM_PUBKEY
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Tabularium?
Run the Claude Code command in the install section to add Tabularium to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with Tabularium?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Tabularium as well.
Does Tabularium need an API key?
Yes. Before it can run, set these environment variables: TABULARIUM_PRIVATE_KEY, TABULARIUM_MAX_SPEND_USD, TABULARIUM_URL, TABULARIUM_PAY_MAX_USD, TABULARIUM_PAY_NETWORKS, TABULARIUM_PUBKEY. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
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