Appside MCP: game web store docs for your coding agent

Appside's public MCP server lets compatible coding agents search developer documentation, retrieve SDK examples and read published pricing. Its three tools are read-only: they do not create stores, publish sites or process payments.

Connect your coding agent

Use https://appside.build/mcp with a client that supports remote Streamable HTTP. No account, API key or payment credentials are required. For clients supporting this URL configuration:

Copy{"mcpServers":{"appside":{"url":"https://appside.build/mcp"}}}

Configuration fields vary by client. Choose its remote HTTP connector, rather than a local executable or SSE-only connection. See the MCP remote connection guide.

Available tools

Supported platform names: web, ios, android, unity, react-native, flutter, node, python. Available examples do not mean every platform has been tested on a device: check the returned status and SDK verification details.

The server also exposes https://appside.build/llms.txt as a read-only MCP resource. For clients without MCP, use the documentation index, full developer text or this page's View as Markdown link.

Try a useful integration prompt

Ask your agent: “Search Appside's docs for signed webhooks, get the Node SDK example, and explain how my backend grants each order only once. Include source links and identify any test-mode limitations.”

Expected sequence: search_docs with {"query":"signed webhooks"}, followed by get_sdk_snippet with {"platform":"node"}. Read the linked webhook guide before integrating. A return-to-game link or client callback is a UI hint; grant items only after verified backend delivery.

Verify the connection

The endpoint speaks protocol 2025-03-26. This initialization request can be run without credentials:

Copycurl https://appside.build/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  --data '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-03-26","capabilities":{},"clientInfo":{"name":"docs-check","version":"1.0.0"}}}'

A public endpoint check on 2026-10-24 UTC returned server name appside-mcp, version 0.1.0, all three tools above, and a successful get_pricing response. You can reproduce the pricing call:

Copycurl https://appside.build/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  --data '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"get_pricing","arguments":{}}}'

The text content contains feePercent: 3.9, basis: "per successful payment", and zero setup, subscription and minimum fees, with a source link. This is published pricing information, not a payment-processing tool or confirmation that a merchant is approved for live payments. See testing and payment status.

Limits and troubleshooting

• Stateless JSON POST responses; notification POSTs return an empty 202. GET returns 405: there is no optional SSE stream, session state or server-initiated messaging.
• Set both headers shown above. Missing JSON content type returns 415; missing accepted response types returns 406.
• Limits: 64 KiB messages, 20-message batches, 10s body deadline, 60 requests/minute per socket IP and 600/minute globally. Behind the edge proxy, clients may share a socket bucket.
• A 429 response includes Retry-After: 60. Wait before retrying instead of polling repeatedly.
• There is no cross-origin browser CORS access. If an Origin header is present, it must match an allowed HTTPS site origin. Connect from your MCP client's server-side transport.

Discovery and next steps

Find the public Appside Developer Docs listing on Glama. The listing is live; the ownership claim is pending. The official MCP registry entry and npm package are not published, so use the remote endpoint above.

Start with the first-purchase quickstart, connect player identity, then implement signed fulfillment. Publishers with an Appside account create and manage the store in the Appside builder; to see the app-to-store journey first, open the live demo.