Read TOConline customers, suppliers, products, sales documents, receipts and purchases. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the TOConline connector, then ask in plain words. The AI picks the tools.
For Portuguese businesses and accountants who manage customers, sales and purchases in TOConline.
List customers or suppliers, then read a selected record and its company relationships.
List sales documents, inspect a selected document and read its line items without issuing, changing or finalizing it.
Read purchase documents and recorded purchase payments, then inspect one payment and its related records.
Find products or services by item code and read the company’s tax descriptors and units of measure.
The login page asks for your API URL, OAuth URL, Client ID and Client secret.
Optional: Registered redirect URI.
An Empresário opens Empresa → Configurações → Dados API and names an integrator. The integrator receives a 72-hour link containing the Client ID, Client secret, OAuth URL and API URL. Paste those values below. Keep the registered redirect URI unless it was changed in TOConline; its default is https://oauth.pstmn.io/v1/callback. The authorization redirect is read directly and never followed. TOConline may require an active commercial-management licence for writes; this server exposes only reads. Credentials are used only to call TOConline, and are never displayed or returned.
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": {
"toconline": {
"url": "https://toconline.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"toconline": {
"type": "http",
"url": "https://toconline.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 API URL, OAuth URL, Client ID and Client secret. 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 company | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per company | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this TOConline server only. Ask your AI to run toconline_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 toconline_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 toconline_upgrade before then undoes the cancel. Or write to [email protected].
toconline_list_customerstoconline_list_supplierstoconline_list_productstoconline_list_servicestoconline_list_sales_documentstoconline_list_sales_receiptstoconline_list_purchase_documentstoconline_list_purchase_paymentstoconline_list_countriestoconline_list_tax_descriptorstoconline_list_item_familiestoconline_list_units_of_measuretoconline_list_document_seriestoconline_list_currenciestoconline_get_customertoconline_get_suppliertoconline_get_sales_documenttoconline_get_sales_receipttoconline_get_purchase_paymenttoconline_list_sales_document_linestoconline_usage_statustoconline_request_featuretoconline_upgradetoconline_cancel_subscriptionFind customer and supplier details. Review sales documents and invoice lines. Check purchases and recorded payments. Look up products and accounting reference data. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by TOConline. The server calls the TOConline API with your own TOConline 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 API URL, OAuth URL, Client ID and Client secret. 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 API URL, OAuth URL, Client ID and Client secret. 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 TOConline 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 TOConline.
All 20 TOConline 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 TOConline server only. Cancel any time: your paid plan then runs to the end of the paid period. Run toconline_usage_status to see how many calls you used.
Ask the AI to run toconline_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 toconline_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 toconline_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.