Koskamo

Mercury402 MCP

An MCP server providing autonomous agents with direct access to 78 live financial data endpoints, including US Treasury yields, FRED economic series, forex rates, and macro intelligence. It implements the x402 payment protocol for pay-per-call access using USDC on Base, requiring no API keys or account subscriptions.

Visit Mercury402

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Mercury402 MCP logo, by Mercury402Community listingLocal stdioSource reviewed; not executedPublished by Mercury402
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 1 GitHub star

What you can do with it

  • Retrieve US Treasury yield curves and auction results
  • Access FRED economic indicators like CPI, GDP, and unemployment
  • Fetch real-time forex rates and yield spreads
  • Generate macro intelligence bundles and recession probabilities

Source and maintenance

Community listingRegistry 0.1.4MIT
mcp-registry: io.github.dudman1/mercury402-mcp@0.1.4Source repositoryProject website
Last repository push
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

mercury402-mcp 0.1.4

npmnpx
mercury402-mcp package definition
{
  "version": "0.1.4",
  "transport": "stdio",
  "identifier": "mercury402-mcp",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "MERCURY402_PAYER_PRIVATE_KEY",
      "description": "Opt-in paid mode: private key of a dedicated low-balance wallet holding USDC on Base. Leave unset for free discovery mode."
    },
    {
      "name": "MERCURY402_MAX_PRICE_USD",
      "format": "number",
      "default": "0.5",
      "description": "Per-call spending cap in USD for paid mode."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "mercury402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mercury402-mcp@0.1.4"
      ],
      "env": {
        "MERCURY402_PAYER_PRIVATE_KEY": "<YOUR_MERCURY402_PAYER_PRIVATE_KEY>",
        "MERCURY402_MAX_PRICE_USD": "<YOUR_MERCURY402_MAX_PRICE_USD>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "mercury402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mercury402-mcp@0.1.4"
      ],
      "env": {
        "MERCURY402_PAYER_PRIVATE_KEY": "<YOUR_MERCURY402_PAYER_PRIVATE_KEY>",
        "MERCURY402_MAX_PRICE_USD": "<YOUR_MERCURY402_MAX_PRICE_USD>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "mercury402-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mercury402-mcp@0.1.4"
      ],
      "env": {
        "MERCURY402_PAYER_PRIVATE_KEY": "<YOUR_MERCURY402_PAYER_PRIVATE_KEY>",
        "MERCURY402_MAX_PRICE_USD": "<YOUR_MERCURY402_MAX_PRICE_USD>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "mercury402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mercury402-mcp@0.1.4"
      ],
      "env": {
        "MERCURY402_PAYER_PRIVATE_KEY": "<YOUR_MERCURY402_PAYER_PRIVATE_KEY>",
        "MERCURY402_MAX_PRICE_USD": "<YOUR_MERCURY402_MAX_PRICE_USD>"
      }
    }
  }
}

Let your agent find its tools

Find servers like Mercury402 MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows
See all 4,833