Finance · Remote MCP server

Simplefunctions

Calibrated world model for AI agents. 40 tools: world state, markets, trading. Kalshi + Polymarket.

What the MCP Registry states

The entry as published to the official MCP Registry (read 2026-10-04), latest version.

Registry name
io.github.spfunctions/simplefunctions
Version
1.1.0
Status
Active
Category
finance
Transport
Streamable HTTP, stdio (local process)
Package
npm
Published
2026-04-02
Updated
2026-04-02
Publisher
spfunctions (GitHub)
Repository
github.com/spfunctions/simplefunctions-cli
Source
Registry API entry

Remote endpoints

TransportURLHeaders declared
Streamable HTTPhttps://simplefunctions.dev/api/mcp/mcpNone

Packages

RegistryPackageVersionTransportEnvironment variables
npm@spfunctions/cli1.7.22stdioNone declared

How to connect Simplefunctions

Simplefunctions is a remote MCP server: there is nothing to install. Its endpoint is https://simplefunctions.dev/api/mcp/mcp, served over Streamable HTTP. In an assistant that accepts remote MCP servers (often under a setting named connectors, integrations or tools), add a new server and give it this URL; in a client configured by file, add it as a remote (HTTP) server with the same URL.

No headers are declared in the registry entry. If the server needs you to sign in, a client that supports MCP authorization opens the service's own sign-in page when it first connects.

It can also run locally from a Node.js package published to the npm registry: @spfunctions/cli version 1.7.22. It speaks MCP over stdio, so the client starts it as a program and talks to it through standard input and output. It needs Node.js; clients usually start it with npx — the usual command is npx -y @spfunctions/cli@1.7.22.

In the mcpServers JSON format that many desktop and editor MCP clients read, the entry looks like this (placeholders in angle brackets):

{
  "mcpServers": {
    "simplefunctions": {
      "command": "npx",
      "args": [
        "-y",
        "@spfunctions/cli@1.7.22"
      ]
    }
  }
}

Derived from the registry entry, not tested here. What the server does, and on what terms, is set by its publisher; check its repository or website before giving it access to your accounts or files. How to add an MCP server to an assistant · Before you connect

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