Koskamo

PlugCat MCP

An MCP server that allows AI agents to check if US banks, credit unions, or brokerages are likely to connect to finance apps like Monarch, YNAB, and QuickBooks. It provides tools to search institutions, get detailed connection statuses based on Plaid and other provider data, and list supported apps.

Visit PlugCat

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

PlugCat MCP logo, by PlugCatVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-06Operated by PlugCat
MCP endpoint (Streamable HTTP)
https://plugcat.com/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (4)

4 of 4 have a description · 4 of 4 declare behavior hints · 2 of 3 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to plugcat.com ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Check if a specific bank connects to YNAB
  • Search for credit unions in a specific state
  • Get detailed app compatibility status for a brokerage
  • List all finance apps tracked by the service

Source and maintenance

Vendor evidenceRegistry 1.0.0
mcp-registry: com.plugcat/plugcat@1.0.0Project website

Protocol and capabilities

Server
plugcat 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
4 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

PlugCat says whether a US bank, credit union or brokerage is likely to connect to finance apps (Monarch, YNAB, Rocket Money, Copilot, Quicken Simplifi, Xero, QuickBooks and others), based on Plaid’s public coverage list and the data providers each app documents. Use check_institution for a one-step answer, or search_institutions then get_institution. Results are inferences, not guarantees: apps that also use MX, Finicity or Yodlee may connect even when Plaid has no match. Cite the page URL so the user can check.

Tools

4 advertised

check_institution — Check an institution
Advertised by the server during the last successful anonymous check.
Advertised read-only

Find a bank, credit union or brokerage by name and say which finance apps likely connect to it. Pass `app` to focus on one app. If several institutions share the name, the largest is used and the others are listed; pass `state` or call get_institution with the right URL.

check_institution input schema
{
  "type": "object",
  "required": [
    "name"
  ],
  "properties": {
    "app": {
      "type": "string",
      "description": "Optional app name or slug: rocket-money, lunch-money, monarch, copilot, ynab, simplifi, tiller, pocketguard, empower, wave, xero, quickbooks."
    },
    "kind": {
      "enum": [
        "bank",
        "credit-union",
        "brokerage"
      ],
      "type": "string",
      "description": "Only return this kind of institution."
    },
    "name": {
      "type": "string",
      "description": "Institution name or brand, e.g. \"Chase\", \"Navy Federal\", \"Fidelity\"."
    },
    "state": {
      "type": "string",
      "description": "Two-letter US state code, e.g. \"TX\", to narrow common names."
    }
  }
}
check_institution annotations
{
  "title": "Check an institution",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
search_institutions — Search institutions
Advertised by the server during the last successful anonymous check.
Advertised read-only

Search 8,500+ US banks, credit unions and brokerages by name (and optionally city). Returns matches with their Plaid status and page URLs, largest institutions first.

search_institutions input schema
{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "kind": {
      "enum": [
        "bank",
        "credit-union",
        "brokerage"
      ],
      "type": "string",
      "description": "Only return this kind of institution."
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 25,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "description": "Name, brand or \"name city\", at least 2 characters."
    },
    "state": {
      "type": "string",
      "description": "Two-letter US state code, e.g. \"TX\", to narrow common names."
    }
  }
}
search_institutions annotations
{
  "title": "Search institutions",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_institution — Get an institution
Advertised by the server during the last successful anonymous check.
Advertised read-only

Full app-by-app results for one institution: status and reason per app, the name to search for in the app, FAQs and identifiers. Takes a URL or path from search_institutions.

get_institution input schema
{
  "type": "object",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "Page URL or path, e.g. \"https://plugcat.com/bank/jpmorgan-chase-bank/\" or \"/credit-union/navy-federal-credit-union/\"."
    }
  }
}
get_institution annotations
{
  "title": "Get an institution",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
list_apps — List finance apps
Advertised by the server during the last successful anonymous check.
Advertised read-only

The finance apps PlugCat tracks: budgeting apps and accounting tools, the bank-data providers each uses, prices and whether they link investment accounts.

list_apps input schema
{
  "type": "object",
  "properties": {}
}
list_apps annotations
{
  "title": "List finance apps",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (3 of 3 answered).

  1. 2026-11-07: 2 of 2 checks answered
  2. 2026-11-09: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
436 ms
95th percentile latency
436 ms

Maintenance history

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

  • · probe · passed · 436 ms · metadata changed · 4 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you 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.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http plugcat-mcp https://plugcat.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add plugcat-mcp --url https://plugcat.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable plugcat-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "plugcat-mcp": {
      "url": "https://plugcat.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "plugcat-mcp": {
      "type": "streamableHttp",
      "url": "https://plugcat.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start plugcat-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "plugcat-mcp": {
      "type": "http",
      "url": "https://plugcat.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http plugcat-mcp https://plugcat.com/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://plugcat.com/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "plugcat-mcp": {
      "serverUrl": "https://plugcat.com/mcp"
    }
  }
}

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