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MYOB API and MCP server

MYOB's API is gated behind an access request and shows no action to email an invoice to a customer. Sign in to MYOB once in your own Cloud Browser, and your AI agent does the work there for you. The same tools work over MCP for agents and as a REST API for scripts.

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Not affiliated with MYOB.

MYOB has no API for this. So we run one for you.

MYOB's own API, a GitHub MCP server and Cotlet compared
What you need MYOB's APIGitHub MCP serverCotlet
Emailing invoices No Partly Yes, 12 tools
Acts as you, signed in 24/7 No No Yes, Cloud Browser
Fixed for you when MYOB changes N/A No Yes, tested every 6h
Runs with your laptop off N/A No Yes, hosted

Checked Oct 14, 2026. Sources: MYOB Developer Centre: MYOB APIs · MYOB Developer Centre: Getting started with the Business API · MYOB Developer Centre: Granular data scopes · MYOB Developer Centre: Sale/Invoice · MYOB Community: MYOB Connector, ask Claude or ChatGPT about your business

Your own Cloud Browser, on 24/7. Sign in once. We keep it connected.

  1. 01Sign in to MYOB in your own Cloud Browser

  2. 02Connect it for your agents

  3. 03Cotlet keeps it signed in and working

How do I connect MYOB to Claude, ChatGPT or my code?

AI agents connect over MCP, scripts call the REST API. Both reach the same 12 tools with one API key.

For AI agents: MCP

Add Cotlet to your agent once. MYOB and every other app you connect show up as its tools.

  • Claude
  • ChatGPT
  • OpenClaw
  • Hermes
  • GrokBot
  • Cursor
  • n8n
  • Any MCP client
  1. 1

    Add Cotlet to your agent

    Claude Code
    claude mcp add --transport http cotlet \
  https://cotlet.dev/mcp/v1 \
  --header "Authorization: Bearer $COTLET_API_KEY"
    Cursor
    {
  "mcpServers": {
    "cotlet": {
      "url": "https://cotlet.dev/mcp/v1",
      "headers": {
        "Authorization": "Bearer ${COTLET_API_KEY}"
      }
    }
  }
}
    Codex
    # ~/.codex/config.toml
[mcp_servers.cotlet]
url = "https://cotlet.dev/mcp/v1"
bearer_token_env_var = "COTLET_API_KEY"

    Paste the snippet for your client. The same server and key serve every app you connect, so you do this once.

For scripts: REST API

Every tool is an endpoint under /api/v1/myob with its own method and path, such as POST /api/v1/myob/customers/{customer_id}/invoices, with the same API key. Our open-source repo has ready scripts to start from.

REST API docs

What can the MYOB API and MCP server do?

12 tools on your own MYOB account. Agents call them as operations of the MCP tools myob_read and myob_write; scripts call each one at its own REST endpoint, with the same inputs and answers.

API reference
MYOB tools in Cotlet's MCP server and REST API
Tool What it does Access
list_customers Customer cards with card ID, name, email and payment terms, filtered by name or email. read
list_invoices Sales invoices with customer, dates, total and balance due, filtered by status. read
get_invoice One sales invoice with lines, tax, payments applied and activity history. read
list_bills Supplier bills with supplier, dates, total and balance due, filtered by status. read
list_bank_accounts Bank accounts and credit cards you can record payments in or out of. read
create_customer Add a customer card with name, email and payment terms. write
create_invoice Create a sales invoice for a customer with one or more lines. writeasks first
send_invoice Email an invoice to the customer with the PDF attached. writeasks first
record_invoice_payment Record money received from a customer against one or more open invoices. writeasks first
create_bill Enter a supplier invoice as a bill with its lines and tax. writeasks first
record_bill_payment Record a payment to a supplier against one or more open bills. writeasks first
send_customer_statement Email a customer statement as a PDF to one or more customers. writeasks first

Scroll the table for all 12 tools.

Ask in plain words. Your agent does the rest.

All MYOB use cases

Is it safe to connect MYOB?

You sign in yourself in your own Cloud Browser, we never save your password, and anything that reaches your readers waits for your OK. The browser profile is encrypted in the EU. Independent scanners grade cotlet.dev A+.

Security overview

How much do the MYOB API and MCP server cost?

One price for both: a tool call costs the same over MCP or REST. Free 7-day trial with 2,000 credits, no card needed. Then one-time credit packs, no subscription, valid 12 months. Most calls use 25 credits, and your Cloud Browser uses 50 credits a day while MYOB is enabled for agents, so 20 calls a day come to 550 credits.

See full pricing
Cotlet credit packs: price, credits and calls at 25 credits each
Credits Price, one time Calls at 25 credits Per 1,000 credits
5,000 $29 200 $5.80
15,000 $79 600 $5.27
32,000 $149 1,280 $4.66
60,000 $249 2,400 $4.15

Only successful calls use credits; failed calls and timeouts cost nothing. At a balance of 0 calls pause, never a surprise charge. Authenticate with the Authorization: Bearer header.

Questions

Does MYOB have an API?

Yes, MYOB has a full REST API, the MYOB Business API, for sales invoices, bills, customer and supplier payments and contacts (checked 14 Oct 2026), but it is not open by default: you request access through the API support form, register an app in my.MYOB for a key and secret, and every user grants OAuth consent per company file. MYOB also runs an official connector for Claude and ChatGPT, but it is read-only and in invite-only beta in Australia, so no official MCP server creates or sends an invoice.

How do I get access?

Sign up free, open MYOB under Integrations in the console and press Request access. Your free trial starts with your account, no card needed.

Is the MCP server different from the API?

No, only the way in. Cotlet builds each integration as a REST API and puts an MCP server on top, so both have the same 12 tools, the same inputs and answers, one API key and one price. AI agents such as Claude, ChatGPT or Cursor use MCP; scripts, cron jobs and HTTP steps in n8n, Make or Zapier use the REST API.

What is the Cloud Browser?

Your own Chrome that Cotlet runs for you in the EU, around the clock. You open it from the console, sign in to MYOB yourself and press Enable for agents. Your agent's calls go through it, from its IP with its cookies, so MYOB sees the browser you signed in with. Password saving is off and the profile is stored encrypted with AES-256-GCM.

Can my agent act without asking me?

Not on anything that reaches other people: create_invoice, send_invoice, record_invoice_payment, create_bill, record_bill_payment, send_customer_statement wait for your OK by default. You can switch that off per tool for scheduled runs.

Which MYOB products do the tools cover?

The tools follow the MYOB Business browser app: Sales > Invoices, Sales > Record invoice payment, Purchases > Bills and Purchases > Record supplier payment. A local AccountRight desktop file has no browser sign-in, so it is out of scope.

Should I use a MYOB MCP server from GitHub instead?

Pick one if you want the code on your own computer and do not mind the upkeep: you install it, sign it in and fix it when MYOB changes. Pick Cotlet if you want it hosted and kept working for you.

Can I use it in n8n, Make or Zapier?

Yes. Add https://cotlet.dev/mcp/v1 in n8n's MCP Client node, or call the REST endpoints from an HTTP step in Make or Zapier.

Who runs Cotlet?

Cotlet is run by Take Group, a Polish software company working since 2019. Take Group runs about 3,200 websites on its own systems and has its own DevOps team for infrastructure security. We built and used integrations like this inside the company for years before opening them as Cotlet.

Is Cotlet affiliated with MYOB?

No. Cotlet is independent and not affiliated with MYOB.

Give your agent access to MYOB.

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