@fillgate/mcp
Advanced tools
MCP server exposing fee-carrying trading tools (Jupiter Ultra, Polymarket CLOB v2, Hyperliquid) with two-step prepare/execute safety.
MCP server exposing fee-carrying trading tools. Every money-moving tool is two-step
(*_prepare → *_execute) behind guardrails: notional cap, slippage cap, allowlists,
rate limit, dry-run and geoblock.
{ "mcpServers": { "fillgate": { "command": "npx", "args": ["-y", "@fillgate/mcp"],
"env": { "DRY_RUN": "true" } } } }
Fees. Jupiter Ultra swaps carry a 50 bps referral fee (Jupiter's Ultra minimum) that
routes to Fillgate's own referral account by default. Set JUP_REFERRAL_ACCOUNT to route
it to your own account instead — fillgate_status always reports which one is active.
A venue's tools are registered only when its whole write path is configured, so a
half-configured venue is invisible to the agent instead of failing at execute time.
Out of the box that means Jupiter Ultra (live on Solana mainnet); Polymarket CLOB v2
and Hyperliquid perps ship in the package and turn on once configured. Call
fillgate_status first — it reports enabled and a howToEnable for everything else.
Full docs, guardrail table and setup: https://github.com/mineloop99/fillgate
MIT
FAQs
MCP server exposing fee-carrying trading tools (Jupiter Ultra, Polymarket CLOB v2, Hyperliquid) with two-step prepare/execute safety.
The npm package @fillgate/mcp receives a total of 32 weekly downloads. As such, @fillgate/mcp popularity was classified as not popular.
We found that @fillgate/mcp demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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