cashsdk-mcp

The stdio Model Context Protocol server for CashSDK — in-app purchases, subscriptions and paywalls for iOS and Android. It lets any MCP-capable coding agent manage your catalog, paywalls, customers, webhooks and store sync.

Most people want the hosted server instead. CashSDK runs a remote MCP server at https://api.cashsdk.com/mcp with nothing to install — see docs.cashsdk.com/ai-tools/mcp-server. This package exists for clients that only speak stdio, and for running against a local or self-managed API.

Use it

Your MCP client launches the server; you rarely run it by hand.

{
  "mcpServers": {
    "cashsdk": {
      "command": "npx",
      "args": ["-y", "cashsdk-mcp"],
      "env": {
        "CASHSDK_TOKEN": "csk_st_...",
        "CASHSDK_APP": "app_..."
      }
    }
  }
}

Environment

| Variable | Required | Default | What it is | | --- | --- | --- | --- | | CASHSDK_TOKEN | yes | — | A setup token (csk_st_…) or secret key (csk_sk_…) | | CASHSDK_API_URL | no | https://api.cashsdk.com | API base URL | | CASHSDK_APP | no | — | Default app id (app_…); every tool also takes app |

Prefer the setup token (csk_st_…) from your dashboard's integration prompt: it expires in 24 hours and is scoped to one app's setup surface, rather than a long-lived key that can read your whole revenue ledger. Never commit either.

Tools

Catalog and setup (get_setup_checklist, get_catalog, create_product, create_entitlement, sync_catalog_from_app_store), paywalls and campaigns (list_templates, create_paywall, generate_paywall, create_placement, create_campaign), customers and data (get_customer, list_transactions, tail_recent_events), keys and webhooks (create_api_key, rotate_api_key, register_webhook_endpoint, send_test_webhook), and the marketplace connectors.

Full list: docs.cashsdk.com/ai-tools/mcp-server.

Every tool maps onto a CashSDK REST endpoint and is executed with the token you supply, so the server can never do more than that token already allows.

Links

• Documentation — https://docs.cashsdk.com
• Machine-readable docs — https://docs.cashsdk.com/llms.txt

License

Proprietary — see LICENSE.md. Production use requires a CashSDK subscription.