Read Stamped Loyalty 2.0 customers, products, orders, rewards and activity. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Stamped connector, then ask in plain words. The AI picks the tools.
For ecommerce teams with API-enabled Stamped Loyalty 2.0 shops.
Look up a customer by email or platform ID to review their loyalty record. Only connect customer data you may process with your AI service.
Find products by title, vendor or tags in the catalog Stamped holds.
Look up an order using its Shopify, BigCommerce or custom platform ID.
Read earned or redeemed rewards and points activity. Coupon codes are masked; no redemption or points changes are available.
The login page asks for your Store hash (shop id) and Private API key.
Use an API-enabled Loyalty 2.0 subscription. In Stamped open Settings → Loyalty Integrations → API Keys, copy the numeric Shop ID/Store Hash, and create a dedicated private key with + Add API Key. This initial release has 11 read-only tools; legacy V2 review tools are unavailable. Requested customer contacts, addresses, orders and loyalty information pass to your chosen AI client and its LLM provider; API keys are not sent to the LLM. Coupon codes are masked. No review publishing, shopper replies, points adjustments, redemptions or other business writes are exposed. Requests are never automatically retried. Revoke the dedicated key in Stamped to stop access; the shop ID supplies the usage/billing identity. Vendor API access and subscription charges are separate.
Team and Enterprise: an Owner adds the connector for the organization first.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"stamped": {
"url": "https://stamped.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"stamped": {
"type": "http",
"url": "https://stamped.usefulapi.io/mcp"
}
}
} Run these commands. The second one opens the login page:
Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Store hash (shop id) and Private API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
| Plan | Price | Limit |
|---|---|---|
| Freeper Stamped shop | $0 | 50 tool calls / month |
| Proper Stamped shop | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per Stamped shop | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Stamped server only. Ask your AI to run stamped_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with stamped_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with stamped_upgrade before then undoes the cancel. Or write to [email protected].
stamped_list_customersstamped_get_customerstamped_lookup_customerstamped_list_productsstamped_get_productstamped_lookup_productstamped_list_ordersstamped_get_orderstamped_lookup_orderstamped_list_loyalty_rewardsstamped_list_loyalty_activitiesstamped_usage_statusstamped_request_featurestamped_upgradestamped_cancel_subscriptionFind a loyalty customer. Review catalog records. Locate a platform order. Audit loyalty activity. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Stamped. The server calls the Stamped API with your own Stamped access, so it sees only the data that your account can see.
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
The login page asks for your Store hash (shop id) and Private API key. See Before you connect for where to find them.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Store hash (shop id) and Private API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Stamped API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Stamped.
All 11 Stamped tools are marked read-only.
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this Stamped server only. Cancel any time: your paid plan then runs to the end of the paid period. Run stamped_usage_status to see how many calls you used.
Ask the AI to run stamped_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run stamped_cancel_subscription. Your paid plan continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with stamped_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.