Accounting
Wave MCP connector
The Wave connector lets Claude, ChatGPT, Cursor, or any MCP client create and update customers, estimates, and chart of accounts entries in Wave, with every action running under the signed-in person's own Wave access and recorded in an audit log.
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How it connects. Connects over OAuth. The credential goes into a vault nobody reads back.
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One address. https://api.elaichi.ai/mcp, the same for every user.
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Their own access. An agent never gets more than the person it acts for.
51 tools
How to connect
How to connect Wave to Claude, ChatGPT or Cursor
Two steps, about a minute.
In Elaichi
Connect Wave once
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Open Connections, choose Add connection, and pick Wave.
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Optionally set Share with to give a team access, then press Connect.
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Approve it in Wave. Wave's own window opens. Whoever approves it decides what this connection can reach.
The credential is vaulted. Nobody reads it back, not even the AI.
Add connection
Choose a connector.
In your AI client
Point it at one endpoint
Everyone in the organization uses the same address, and each person only ever reaches what their own account allows.
Connect Wave to Claude
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1
Open Customize, then Connectors.
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2
Press Add.
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3
Name it, paste the MCP server URL, then Continue.
https://api.elaichi.ai/mcp -
4
Sign in and approve.
On Team and Enterprise, an Owner adds it once. Everyone else turns it on for themselves.
Connect Wave to ChatGPT
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1
Open Plugins, then press the + button.
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2
Name it and paste the endpoint into Server URL.
https://api.elaichi.ai/mcp -
3
Leave Authentication on OAuth, then tick the risk acknowledgement.
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4
Press Create, then sign in and approve.
Works on the web today. The plugin directory lives at chatgpt.com/plugins.
Connect Wave to Cursor
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1
Open
~/.cursor/mcp.json. -
2
Add the endpoint under
mcpServers.https://api.elaichi.ai/mcp -
3
Reload Cursor, then sign in and approve.
~/.cursor/mcp.json
{
"mcpServers": {
"elaichi": {
"url": "https://api.elaichi.ai/mcp"
}
}
}
Set up per machine, so repeat it on each computer you work from.
Connect Wave to any MCP client
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1
Add the endpoint as a remote MCP server.
https://api.elaichi.ai/mcp -
2
Sign in and approve.
{
"mcpServers": {
"elaichi": {
"url": "https://api.elaichi.ai/mcp"
}
}
}
The Elaichi Agent already has these tools, with nothing to set up.
Use cases
What teams do with Wave through Elaichi
Every one of these runs inside the access the person already has, and lands in the same audit log.
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Sales
Turn a yes into an invoice
When a customer accepts a quote, have the Wave estimate marked accepted and converted to an invoice in one ask, without opening Wave.
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Sales
Clone last quarter's estimate for a repeat order
Duplicate an existing Wave estimate, change the quantities or dates, and generate the PDF ready to send.
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Finance
Keep the chart of accounts tidy
Add a new account under the right type and subtype, rename one that has drifted, or remove one nobody posts to, all in Wave.
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Finance
Send the deposit receipt right away
Once a deposit arrives against an estimate, have Wave send the deposit payment receipt to the customer so nobody has to chase it.
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Office
Set up a new customer from an email
Paste in a signature block and have the customer created in Wave, then correct the billing address or contact when it changes.
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Leadership
Confirm which business and currency you are billing in
Ask which Wave businesses you can see and which currencies and countries they use before an estimate goes out in the wrong one.
Try asking
- “List unpaid invoices for our top ten Wave customers.”
- “Which Wave accounts changed balance this month?”
- “Draft a new customer in Wave for Northside Dental.”
AI tools
Wave tools for your AI agents
51 tools are ready to call through Elaichi's MCP endpoint the moment you connect Wave, governed by the same roles, restrictions, and audit log as everything else in Elaichi.
No tools match your search.
See it in Elaichi
What connecting Wave gets you
6 screens from the product, each doing one job for your Wave account.
The agent
Ask about invoices, get real answers.
Plain questions run against live Wave customers, accounts and invoices.
- invoices
- customers
- accounts
- businesses
Ask Elaichi to work across your apps.
List unpaid invoices for our top ten Wave customers.
Which Wave accounts changed balance this month?
Draft a new customer in Wave for Northside Dental.
Also runs in Claude, ChatGPT or Cursor
MCP clients
Claude, ChatGPT and Cursor reach Wave.
One org MCP endpoint over OAuth, no SDK and no shared API key.
ElaichiMCP clientsClaude
ChatGPT
Cursor
Copy the endpoint
Tool catalog
51 Wave tools, zero custom code.
Businesses, accounts, customers, invoices and currencies, each with listed resources and methods.
- Wave users me
- Create a Wave account
- Delete a Wave account by ID
- Update a Wave account by ID
ElaichiToolsToolboxes
Every team gets its own Wave toolbox.
Bookkeeping, sales and payroll each work from a toolbox scoped to them.
- Bookkeeping
- Accounts receivable
- Sales
- Finance leadership
ElaichiToolboxesShared connections
Share a Wave business, never the login.
See who connected each account and how many teams and members use it.
- Bookkeeping
- Accounts receivable
- Sales EMEA
- Payroll
ElaichiConnectionsAudit log
Every Wave call has a name on it.
When, who, what happened, type and resource for each invoice and account change.
- When
- Who
- What happened
- Type
ElaichiAudit logLaunching soon
From answering questions to doing the work
A person no longer has to ask. A trigger starts the work, inside the same permissions and the same audit log as everything else. Automations and live dashboards are launching soon, on the Black plan.
Automations
A schedule fires, Wave work gets done.
Invoices are fetched, grouped, drafted into a digest, approved, then posted back.
Wave digest
Run 418 · started 2 minutes ago · on behalf of Emma Laurent
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✓
Schedule
Every weekday at 08:00
0.2s -
✓
Fetch invoices
Wave
1.4s -
✓
Group by owner
Transform
0.1s -
✓
Draft the digest
Agent step
Ran with 4 tools, returned a structured summary
6.2s -
Approve the digest
Needs approval
Assigned to Michael Brennan
Approve Deny -
Post the digest
Wave
Queued
Collections and dashboards
Wave numbers arrive before anyone asks.
Four metrics, 14 days of invoices created, split by team, refreshed on schedule.
Wave health
Refreshed 4 minutes ago · every 15 minutes · from the invoices collection
Invoices
1,284 ↓ 12%
Customers
96 ↓ 8%
Needs attention
3 ↑ 2
Updated this week
412 ↑ 9%
Invoices created
Last 14 days
By team
Share of activity
Bookkeeping 34%
Accounts receivable 27%
Sales EMEA 21%
Payroll 18%
Related connectors
More from the catalog
FAQ
Frequently asked questions
How do I connect Wave to Claude?
Connecting Wave to Claude takes two steps. First, connect Wave in Elaichi: you are sent to Wave's own sign-in window, you log in and approve, and there is no OAuth application to register and no client ID or secret to generate. Then in Claude open Customize, then Connectors, then Add, and paste https://api.elaichi.ai/mcp. Claude will ask you to sign in to Elaichi, and Wave is then available in your conversation.
Does Wave work with ChatGPT and Cursor as well as Claude?
Yes. Once Wave is connected in Elaichi, the same endpoint, https://api.elaichi.ai/mcp, works in Claude, ChatGPT, Cursor, any other MCP client, and the Elaichi Agent. You connect Wave once and every client you use picks it up, with the same permissions and the same audit log.
What can an AI agent actually do with my Wave data?
With Wave connected, an agent can create, update, and remove customers, build and edit estimates, mark an estimate accepted, convert it to an invoice, clone it, generate its PDF, and send a deposit payment receipt. It can also add or change accounts in your Wave chart of accounts and look up which businesses, currencies, and countries your account uses. Wave has many actions available, so short, specific asks such as "convert estimate 1042 to an invoice" work better than long paragraphs.
Does connecting Wave give the AI access to every business in my account?
No. An agent working through Wave sees exactly the businesses, customers, and estimates that the person who signed in can see, and nothing more, because every call runs inside that person's own Wave access. Elaichi can narrow that further, for example by taking away the ability to delete customers, but it can never grant anything Wave itself would not allow that person.
Can I stop an agent from deleting or changing things in Wave?
Yes. Restrictions in Elaichi work per action, so you can allow an agent to create and update Wave customers and estimates while blocking deletion of customers, estimates, or accounts entirely. A blocked action is never shown to Claude, ChatGPT, or any other client at all, so no prompt, however worded, can reach it.
What happens to a Wave connection when someone leaves?
When you offboard someone in Elaichi, their access to Wave through every client ends immediately, whether they were using Claude, ChatGPT, Cursor, or the Elaichi Agent. If they had shared a Wave connection with a team, it keeps working for everyone else on that team. If you ever want Wave gone completely, disconnecting it once in Elaichi removes it from every client at the same time.
Put Wave in front of your team
Fourteen days on Gold, no credit card. Connect it once and pick what each team can call.