Connector guide8-minute read27 MCP tools7 languages

Connect Tidely to ChatGPT via MCP: Invoices and Plans

Tidely cash flow planning: the cash flow and forecast per month, week or day, scenarios, categories, bank accounts with balances and transactions, sales and purchase invoices, and planned values. Reads plus creating and updating invoices, plans, categories and transactions; deletes are installed switched off.

HCBy HelpCode teamUpdated 8 min read Open-source on GitHub

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Tidely

Tidely

Tidely cash flow planning: the cash flow and forecast per month, week or day, scenarios, categories, bank accounts with balances and transactions, sales and purchase invoices, and planned values. Reads plus creating and updating invoices, plans, categories and transactions; deletes are installed switched off.

tools

27

Region

BE

Category

Finance

Authentication

API Key

Required env vars

TIDELY_API_KEY
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  • Open-source on GitHub
    Open source · AGPL-3.0
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

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Summary

Tidely cash flow planning: the cash flow and forecast per month, week or day, scenarios, categories, bank accounts with balances and transactions, sales and purchase invoices, and planned values. Reads plus creating and updating invoices, plans, categories and transactions; deletes are installed switched off.

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Example prompts for Tidely

Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.

Tidely · live via MCP
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Opus 4.7

Claude is AI and can make mistakes. Please double-check responses.

💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → Tidely, paste your credentials, mint an MCP API key and you're done. No Docker, no git clone, no local server.

Tidely + ChatGPT

Tidely cash flow planning: the cash flow and forecast per month, week or day, scenarios, categories, bank accounts with balances and transactions, sales and purchase invoices, and planned values. Reads plus creating and updating invoices, plans, categories and transactions; deletes are installed switched off.

Prerequisites

See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:

TIDELY_API_KEY

Step 1 — Get credentials

Setting up takes about 5 minutes. You need a Tidely account with API access enabled; the only credential is an API key.

API access comes first: the API must be enabled for your Tidely account. If Settings → API Keys is missing, ask Tidely support ([email protected]) to enable it.

  1. Sign in to Tidely and open Settings → API Keys (app.tidely.com/settings/openapi). Click + to create a key and give it the scopes you need: read for the read tools, and write if the AI should create or update invoices, plans, categories or transactions.
  2. Copy the key, store it securely and paste it into TIDELY_API_KEY. Paste only the key, without Bearer or any other prefix: the connector sends it in the X-Authorization header.
  3. Install the connector. Run tidely_verify_auth to check the connection: it returns the name of the user the key belongs to.

Cloud and self-hosted work the same way: the API key is the only credential, and there is no redirect URL to set.

Where to start: tidely_get_cashflow answers most liquidity questions: the balance now and the forecast per month, week or day. Without parameters it uses the base scenario, monthly periods, 6 months back and 18 ahead. For monthly periods from is the first day of a month and to the last day of a month (for weeks, a Monday and a Sunday). tidely_list_scenarios gives the ids of the other scenarios.

Invoices need their type: tidely_list_invoices, tidely_get_invoice and tidely_update_invoice take invoiceTypeFilter SALE or PURCHASE, which must match the invoice. Invoices synced from an ERP integration are read-only.

Transactions and imports: transactions are listed per bank account (bankAccountId). New transactions can only be added to bank accounts kept in Tidely (provider API or OFFLINE). Before importing from another system, tidely_check_transactions_exist checks up to 1000 external ids, so nothing is added twice.

Plans add up: tidely_create_plan adds a one-time amount to the planned values of a category in a scenario (the base case by default) for a day, week or month; with replaceCurrentValuesForThePeriod it replaces them instead. The category must accept planned values; without a category the amount goes to uncategorized income or expenses.

What it reads: the cash flow per month, week or day for a scenario, with opening and closing balances (actual, forecast and plan), open sales and purchase invoices, amounts per category, KPIs, overdraft and liquidity; planning scenarios; the category tree with its income and expense types; companies with currency and country; bank accounts with IBAN, type, provider and reference balance, their daily balance history and their transactions with counterpart, purpose and category; sales and purchase invoices with contact, dates, gross and open amount, status, category and source.

Switched off at install: tidely_delete_invoice, tidely_delete_category, tidely_delete_plans and tidely_delete_bank_account_transaction. They delete an invoice, a category, all planned values of one category in one scenario, or a bank account transaction, and none of it can be undone. Switch on only the ones you need on the connector page; the AI asks you to confirm every change first. Creating and updating invoices, categories, plans and bank account transactions is switched on (tidely_create_invoice, tidely_update_invoice, tidely_create_category, tidely_update_category, tidely_create_plan, tidely_create_bank_account_transaction, tidely_update_bank_account_transaction); these calls need a key with the write scope.

Nothing moves money: transactions and invoices are records for planning; no tool pays or transfers anything. Bulk imports, creating or changing bank accounts and the Partner API (OAuth, for white-label partners) are not part of this connector.

Amounts, dates and paging: amounts are decimals in the account or company currency, negative for outgoing money and expenses; dates are YYYY-MM-DD. Paged lists start at page 0, return 50 items per page by default and report totalPages.

Common errors: 401 (INVALID_CREDENTIALS) means the key is missing or wrong: create a new one and paste it without a prefix. 403 (INSUFFICIENT_SCOPE) means the key is valid but lacks the scope for that call: edit its scopes under Settings → API Keys. 400 (INVALID_REQUEST) is invalid input and 404 an unknown id, for example CATEGORY_NOT_FOUND. A 500 is worth one retry after a short wait.

Step 2 — Install the adapter

curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d

Step 3 — Add the connector in ChatGPT

Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide shows YOUR_SERVER_ID.

ChatGPT adds MCP servers as plugins on its Plugins page, on the web and on paid plans. Developer mode is no longer needed. In a Business workspace only admins and owners can add one; in Enterprise and Edu an admin can grant the Create plugins with MCPs permission.

  1. Go to chatgpt.com/plugins, click Add, then Add custom MCP server.
  2. Enter a name, e.g. Name: Tidely.
  3. Under Connection, enter the Server URL https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID and keep Authentication on OAuth.
  4. Select I understand and want to continue, then Create as a plugin. When ChatGPT asks, sign in to AnythingMCP and allow access.
  5. Install the new plugin from your personal plugins, then type @ in a chat and pick it.

Available tools

ToolWhat it does
tidely_verify_authCheck that the API key is valid; returns success and the name of the user the key belongs to
tidely_list_companiesList the companies of the Tidely account (paged): id, parentId, name, currency, country and industry
tidely_get_companyGet one company of the Tidely account by id: name, parent company, currency, country and industry
tidely_get_cashflowGet the cash flow of the company per period (month, week or day) for a scenario: for each period start date the opening and closing…
tidely_list_scenariosList the planning scenarios: id, name and isBaseCase
tidely_get_scenarioGet one planning scenario by id: id, name and whether it is the base case
tidely_list_categoriesList the cash flow categories: id, name, type (INCOME_/EXPENSE_ OPERATIONAL, INVESTMENT or FINANCING), parentId for the hierarchy and…
tidely_get_categoryGet one category by id: name, type, parent and whether it accepts planned values
tidely_list_bank_accountsList the bank accounts in Tidely: id, companyId, account name, bank, IBAN or account number, currency, type (CHECKING, SAVINGS, CREDITCARD…
tidely_get_bank_accountGet one bank account by id: name, bank, IBAN, currency, type, provider, reference balance and visibility
tidely_list_bank_account_balancesList the balance history of one bank account (paged): date and amount per day
tidely_list_bank_account_transactionsList the transactions of one bank account (paged): id, booking date, amount, counterpart name, IBAN and reference, purpose, category and…
tidely_get_bank_account_transactionGet one bank account transaction by id: booking date, amount, counterpart, purpose, category and external id
tidely_check_transactions_existCheck which of up to 1000 external ids already exist as transactions on a bank account, before importing transactions from another system
tidely_list_invoicesList sales or purchase invoices (paged): id, number, contact, dates, gross and open amount, status, category, type, source (ERP sync…
tidely_get_invoiceGet one invoice by id; invoiceTypeFilter must match its type
tidely_create_invoiceCreate a sales or purchase invoice (or credit note) so it shows up in the cash flow forecast on its due date
tidely_update_invoiceUpdate an invoice: only the fields you pass change (status, paid date, open amount, due date, amounts, category, note ...)
tidely_delete_invoiceDelete an invoice (not those synced from an ERP integration)
tidely_create_categoryCreate a cash flow category, optionally under a parent category
tidely_update_categoryRename a cash flow category or change its type (income or expense, operational, investment or financing)
tidely_delete_categoryDelete a cash flow category by id
tidely_create_planAdd a planned value to the forecast: a one-time amount on a category in a scenario for a day, week or month (negative for expenses…
tidely_delete_plansDelete all planned values of one category in one scenario
tidely_create_bank_account_transactionAdd a transaction to a bank account kept in Tidely (an API or offline account), e.g. imported from another system
tidely_update_bank_account_transactionUpdate a bank account transaction: only the fields you pass change, typically its category
tidely_delete_bank_account_transactionDelete a bank account transaction

Example prompts

  • "What is our cash balance today, and what does the forecast show for the next six months?"
  • "Which sales invoices are still open, and which of them are past their due date?"
  • "Compare the closing balance of the base case with our other scenarios, month by month."
  • "Mark purchase invoice 2026-118 as paid today."
  • "Add a planned expense of 12,000 for new hardware in March 2027 to the IT category in the base case."

FAQ

Does the free ChatGPT plan work with custom MCP servers? OpenAI documents custom MCP servers for paid plans only; the Free plan is not on its list.

Next steps

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