Kobiyi MCP server

Read receivables, payables and bank transactions; record collections and payments in Kobiyi. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.

Connect Kobiyi50 free tool calls a month

What can I ask?

Turn on the Kobiyi connector, then ask in plain words. The AI picks the tools.

Which customers owe us money, and which invoices are overdue?
Show the risk status of contact ABC Ltd. against its credit limit.
Record a 2500.25 TRY bank transfer collection against receivable rc_123 dated today.
List the bank transactions that are still unmatched this month.

What you can do with Kobiyi in Claude and ChatGPT

For small businesses in Turkey that track receivables, payables and collections in Kobiyi.

List overdue receivables by customer

List the receivables with status, contact and due-date filters. Open a contact to see its overdue amount and credit risk.

Check unmatched bank transactions

List the bank transactions with their match status, and the cash accounts they belong to.

Record a customer payment

Record money received against a receivable. Use a new idempotency key for each payment, and reuse it only to retry the same payment.

Changes data

Add a receivable with an installment plan

Create a receivable for a contact, with an amount and an optional installment plan. With an external id, a repeated call returns the existing record.

Changes data

Review cheques by due date

List the received and given cheques with their status and due date.

How do I connect Kobiyi?

Before you connect

The login page asks for your Kobiyi API key.

Create it in Kobiyi under Settings → API / ERP Integration. The key is shown only once. A key with write access creates real records; a test key (ak_test_) is read-only. Writes also need an active Kobiyi subscription, and API access must be on for your organization.

Claude claude.ai · Desktop

Open Customize → Connectors, then click + Add → Add custom connector.
Enter the name Kobiyi and this URL, then click Add:
https://kobiyi.usefulapi.io/mcp
Claude opens the login page: enter your Kobiyi API key.
In a chat, click + → Connectors and turn on Kobiyi.

Team and Enterprise: an Owner adds the connector for the organization first.

ChatGPT chatgpt.com

Open Plugins, click +, then Add custom MCP server.
Enter the name Kobiyi and this URL, choose OAuth as the authentication, confirm the warning and create it:
https://kobiyi.usefulapi.io/mcp
ChatGPT opens the login page: enter your Kobiyi API key.
In Plugins, install Kobiyi, then choose it in a chat.

No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.

Claude Code

Run this command, then run /mcp in Claude Code to log in:

claude mcp add --transport http kobiyi https://kobiyi.usefulapi.io/mcp

Cursor

Add to Cursor or add this to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "kobiyi": {
      "url": "https://kobiyi.usefulapi.io/mcp"
    }
  }
}

VS Code

Add to VS Code or add this to .vscode/mcp.json:

{
  "servers": {
    "kobiyi": {
      "type": "http",
      "url": "https://kobiyi.usefulapi.io/mcp"
    }
  }
}

Codex

Run these commands. The second one opens the login page:

codex mcp add kobiyi --url https://kobiyi.usefulapi.io/mcp

codex mcp login kobiyi

Other clients

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.

https://kobiyi.usefulapi.io/mcp

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 Kobiyi 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.

Pricing

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 Kobiyi server only. Ask your AI to run kobiyi_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 kobiyi_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 kobiyi_upgrade before then undoes the cancel. Or write to [email protected].

Tools 24

Show all 24 tools (the AI picks them for you)

Read only · 15

List contactskobiyi_list_contacts
List contacts (cari) with optional search by name, tax number, your ERP externalId, or changes since a time.
Get a contactkobiyi_get_contact
Get one contact with its record counts and credit risk (limit, used, available, overdue, level: none, ok, warn, over).
List receivableskobiyi_list_receivables
List receivables (invoices owed to you) with status, contact, currency, due-date and invoice-date filters.
Get a receivablekobiyi_get_receivable
Get one receivable by id, with its status and amounts.
List payableskobiyi_list_payables
List payables (amounts you owe) with status, contact, currency, date and external-id filters.
Get a payablekobiyi_get_payable
Get one payable by id.
List collectionskobiyi_list_collections
List collections (money received against receivables), filterable by receivable, date range and external id.
List payment transactionskobiyi_list_payment_transactions
List payment transactions (money paid against payables), filterable by payable and date range.
List productskobiyi_list_products
List income categories (products). These are categories, not stock items.
List expense categorieskobiyi_list_expenses
List expense categories (gider kalemleri) with their main and sub category keys.
List cash and bank accountskobiyi_list_cash_accounts
List cash, bank, POS and cheque accounts with currency and balance (balance can be null).
List chequeskobiyi_list_cheques
List received (RECEIVED) and given (GIVEN) cheques with status and due date.
List bank transactionskobiyi_list_bank_transactions
List bank statement and online bank transactions with their match status (MATCHED, UNMATCHED, ADVANCE and others).
List contact advanceskobiyi_list_cari_advances
List contact advances (customer or supplier prepayments) with the amount still unused. Zero balances are hidden unless include_zero is true.
List exchange rateskobiyi_list_exchange_rates
List the stored exchange rates (one current rate per currency pair, no history).

Changes data · 5

Create a contactkobiyi_create_contact
Create a contact (cari) in Kobiyi. Only name is required. This writes a real record.
Create a receivablekobiyi_create_receivable
Create a receivable (an invoice owed to you) for a contact. contact_id and amount are required. With external_id, posting again returns the existing record. This writes a real record.
Create a payablekobiyi_create_payable
Create a payable (an amount you owe) for a contact. contact_id, amount and date (the due date) are required. This writes a real record.
Record a collectionkobiyi_record_collection
Record money received against a receivable. The receivable status updates; excess money becomes a contact advance. Pass a new idempotency_key per payment. Kobiyi API: POST /collections (Idempotency-Key header).
Record a paymentkobiyi_record_payment_transaction
Record money you paid against a payable. The payable status updates; excess money becomes a supplier advance. Pass a new idempotency_key per payment. Kobiyi API: POST /payment-transactions (Idempotency-Key header).

Your usefulapi plan · 4

Usage status (free-tier meter)kobiyi_usage_status
Report the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter.
Request a missing featurekobiyi_request_feature
Tell usefulapi that the user needs something the Kobiyi tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter.
Upgrade to Pro or Pro+kobiyi_upgrade
Get a paid plan for Kobiyi (the free tier caps monthly usage). Pro: 10,000 tool calls a month, for normal use — plan "monthly" ($9/month) or "yearly" ($90/year, 2 months free). Pro+: 100,000 tool calls a month, for automations and heavy use — plan "plus" ($39/month) or "plus_yearly" ($390/year). Without a plan it returns both Pro and Pro+, each with a payment link, for the user to choose; with a plan, one link. An existing Pro subscription changes to Pro+ in place: call without confirm first, as the reply states the exact charge for this account (the price difference for the rest of the period, or in a free Pro trial the full Pro+ price, as the trial ends); then call with confirm: true. Cancel any time: the plan then runs to the end of the paid period, so it also suits a one-time job. A link opens Stripe Checkout in the browser; after payment the account upgrades automatically. Does not count against the meter.
Cancel the Pro subscriptionkobiyi_cancel_subscription
Cancel the caller's Kobiyi Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run kobiyi_upgrade later to undo the cancel before the period ends. Does not count against the meter.

FAQ

What can I do with Kobiyi in Claude or ChatGPT?

List overdue receivables by customer. Check unmatched bank transactions. Record a customer payment. Add a receivable with an installment plan. Review cheques by due date. See what you can do for the details.

Is this an official Kobiyi product?

No. usefulapi is an independent service. It is not affiliated with or endorsed by Kobiyi. The server calls the Kobiyi API with your own Kobiyi access, so it sees only the data that your account can see.

Can I connect Kobiyi to Claude or ChatGPT?

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.

What do I need to connect?

The login page asks for your Kobiyi API key. See Before you connect for where to find it.

Do I put my Kobiyi key or an Authorization header in the client config?

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 Kobiyi 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.

How do you keep my Kobiyi credentials?

The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Kobiyi 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 Kobiyi.

Can the AI change my Kobiyi data?

Yes, if you approve it. 5 of the 20 Kobiyi tools can create or change data. The other 15 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.

What does it cost?

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 Kobiyi server only. Cancel any time: your paid plan then runs to the end of the paid period. Run kobiyi_usage_status to see how many calls you used.

How do I subscribe or cancel?

Ask the AI to run kobiyi_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 kobiyi_cancel_subscription. Your paid plan continues to the end of the paid period.

What if a Kobiyi tool that I need is missing?

Tell the AI what you wanted to do. It can send the request with kobiyi_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.

Which AI clients can I use?

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.

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