Run read-only GraphQL queries and list documents and media assets in Caisy. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Caisy connector, then ask in plain words. The AI picks the tools.
For content teams and developers who read blueprints, documents and media assets in one Caisy project.
List the project's read queries to get the blueprint ids. Run a read-only query with filters, sorting and nested fields to find the entries.
List the blueprint queries, then page through the document ids of each one. Unique blueprints have one entry, so read them with a query instead.
Run a read-only query for one entry with the fields you need. Localized values come back in the same call.
List media assets with their title and source URL, page by page. Use the end cursor to read the next page of assets.
The login page asks for your Caisy project ID and Caisy API key.
Create the key in Caisy under Settings → Development → API Keys. The project ID is the UUID in your GraphQL endpoint URL (/api/e/v4/<projectId>/graphql). The key is used only to call the API on your behalf; it is never shown to anyone.
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": {
"caisy": {
"url": "https://caisy.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"caisy": {
"type": "http",
"url": "https://caisy.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 Caisy project ID and Caisy 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 |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper user | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per user | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Caisy server only. Ask your AI to run caisy_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 caisy_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 caisy_upgrade before then undoes the cancel. Or write to [email protected].
caisy_run_querycaisy_list_queriescaisy_list_documentscaisy_list_assetscaisy_usage_statuscaisy_request_featurecaisy_upgradecaisy_cancel_subscriptionFind entries with a read-only query. Count documents in each blueprint. Read localized fields for one entry. List media assets with their URLs. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Caisy. The server calls the Caisy API with your own Caisy 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 Caisy project ID and Caisy 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 Caisy project ID and Caisy 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 Caisy 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 Caisy.
All 4 Caisy 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 Caisy server only. Cancel any time: your paid plan then runs to the end of the paid period. Run caisy_usage_status to see how many calls you used.
Ask the AI to run caisy_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 caisy_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 caisy_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.