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JupiterSAFE

mcp/kukapay/jupiter-1
MCP server by kukapay · Audited 2026-10-08
⚑ Report / re-scanSource ↗

An MCP server for executing token swaps on the Solana blockchain using Jupiter's new Ultra API.

Verdict
SAFE
Grade
B
Trust score
89 /100
Exposed tools
2 0r · 2w · 0d
Transport
stdio
License
MIT
Stars
29
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

An MCP server for executing token swaps on the Solana blockchain using Jupiter's new Ultra API.

Features

  • Fetch swap orders from Jupiter's Ultra API, combining DEX routing and RFQ (Request for Quote) for optimal pricing.
  • Execute swaps via Jupiter's Ultra API, handling slippage, priority fees, and transaction landing.

Prerequisites

  • Node.js: Version 18 or higher (for native fetch support).
  • Solana Wallet: A private key (base58-encoded) for signing transactions.
  • RPC Endpoint: Access to a Solana RPC node (e.g., https://api.mainnet-beta.solana.com).

Installation

  1. Clone the Repository:
git clone https://github.com/kukapay/jupiter-mcp.git
cd jupiter-mcp
  1. Install Dependencies:

Ensure you have the MCP Server package installed along with other required dependencies:

npm install
  1. Client Configuration:
{
"mcpServers": {
"Jupiter-MCP": {
"command": "node",
"args": ["path/to/jupiter-mcp/server/index.js"],
"env": {
"SOLANA_RPC_URL": "solana rpc url you can access",
"PRIVATE_KEY": "your private key"
}
}
}
}

Tools

Ultra API Tools

  • `get-ultra-order`:
  • Description: Fetches a swap order from Jupiter's Ultra API, leveraging both DEX routing and RFQ for optimal pricing.
  • Inputs:
  • inputMint: Input token mint address (e.g., SOL or token pubkey).
  • outputMint: Output token mint address (e.g., USDC or token pubkey).
  • amount: Input amount as a string (e.g., "1.23").
  • slippageBps: Slippage tolerance in basis points (e.g., 50 for 0.5%).
  • Output: JSON with requestId, transaction (base64-encoded), inputMint, outputMint, inAmount, `outAmou
Read from source at commit 76edea54b557OBSERVED · 2026-10-08
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.

claude-code
claude mcp add jupiter-mcp --env PRIVATE_KEY=${PRIVATE_KEY} -- npx -y [email protected]
claude-desktop
{
  "mcpServers": {
    "jupiter-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "PRIVATE_KEY": "${PRIVATE_KEY}"
      }
    }
  }
}
03

Exposed tools (2)

0 read · 2 write · 0 destructive.

ToolRiskDescription
execute-ultra-orderwriteRequest Jupiter to execute the swap transaction on behalf of the wallet owner. This includes handling of slippage, priority fees, transaction landing and more.
get-ultra-orderwriteGet a swap order from both Jupiter DEX Routing Engine and Jupiter Z (RFQ).
04

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeWARN
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
declared (2 observation(s))
Shell
none-observed
Dependencies
not all pinned
Secrets in source
none-found

Findings (2)

MEDIUMObfuscation / stealth · obf.base64_blob · CWE-506, CWE-94
index.js:166
transaction: "AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAAQAHC+oaDbp9I+uYeae3ayA/1sT4qamJ7tq3b9PZmkdhJZ1mH9RsYXp41YrTtfB/VqrENVYdGHG6rtaCOqWfAPswrbh9iVaqrU
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
package.json
@modelcontextprotocol/sdk, @solana/spl-token, @solana/web3.js, bigint-buffer, dotenv, undici, zod
Why it matters. 7 dependency range(s) float
Fix. pin exact versions or ship a lockfile

Gates applied: no_behavioural_pass.

Audited 2026-10-08 · audit v0.4.1 · source sha 76edea54b557full audit observations/trust-audit/mcp-server/kukapay__jupiter-1.json · Report an issue / request a re-scan
05

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-0876edea54b557SAFEB89first audit
06

Questions

What is the Jupiter MCP server?

An MCP server for executing token swaps on the Solana blockchain using Jupiter's new Ultra API.

What tools does Jupiter expose?

2 in total: 0 read-only, 2 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is Jupiter safe to connect to an agent?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.

What credentials does Jupiter need?

It reads PRIVATE_KEY from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.

How does Jupiter run?

It speaks stdio, so it runs as a local process your client starts. It is published on npm as jupiter-mcp at 1.0.1.

How current is this page?

The grade is for one exact copy of the source (76edea54b557), read on 2026-10-08. The repository is watched and re-audited when it changes.

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