fillgate MCP Server

What this does

fillgate 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:

DRY_RUN
MAX_NOTIONAL_USD
MAX_SLIPPAGE_BPS
RATE_LIMIT_PER_MIN
FILLGATE_VENUES
JUP_REFERRAL_ACCOUNT
OPERATOR_SOLANA_SECRET_KEY
PM_BUILDER_CODE
OPERATOR_EVM_PRIVATE_KEY
HL_BUILDER_ADDRESS
HL_TESTNET

Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).

How do I install fillgate?

Run the Claude Code command in the install section to add fillgate 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 fillgate?

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 fillgate as well.

Does fillgate need an API key?

Yes. Before it can run, set these environment variables: DRY_RUN, MAX_NOTIONAL_USD, MAX_SLIPPAGE_BPS, RATE_LIMIT_PER_MIN, FILLGATE_VENUES, JUP_REFERRAL_ACCOUNT, OPERATOR_SOLANA_SECRET_KEY, PM_BUILDER_CODE, OPERATOR_EVM_PRIVATE_KEY, HL_BUILDER_ADDRESS, HL_TESTNET. They go in the env block of your MCP config.