Mercury MCP Server

Item: Mercury MCP Server
Rating: 56
Author: M8ven

MCP server for Mercury Banking API that enables listing accounts and retrieving transactions via natural language.

→ Fyko/mercury-mcp-server · listed on glama

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// key findings

🚨

Secret credentials may flow to a network call

1 flow detected: MERCURY_API_KEY. We can’t prove the destination matches the brand the credential belongs to.

🚨

Known vulnerabilities in dependencies: 1 critical, 5 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

🔐

You'll be asked for 2 credentials: MCP_API_KEY, MERCURY_API_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies1 critical5 high3 medium2 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalelysia@1.4.15GHSA-hxj9-33pp-j2cc

Elysia vulnerable to prototype pollution with multiple standalone schema validation

high@modelcontextprotocol/sdk@1.21.1GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.21.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.21.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highelysia@1.4.15GHSA-8vch-m3f4-q8jf

Elysia affected by arbitrary code injection through cookie config

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configFORCE_HTTP

🔐 secretMCP_API_KEY— docker run -e MERCURY_API_KEY=your-key -e =your-auth-key -p 9236:9236 ghcr.io/fyko/mercury-mcp-server

🔐 secretMERCURY_API_KEY— "": "replace_me"

configPORT

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/fyko-mercury-mcp-server-1h6mwo)](https://m8ven.ai/mcp/fyko-mercury-mcp-server-1h6mwo)

commit: f1440d9d6f365db5316011cae77083f81fc0712a

code hash: 309c4f05b231f777be8d119dd507ba5bbe4703912562bcdcd100180c0557debe

verified: 6/22/2026, 1:06:27 PM

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