Connectors · Accounting & finance

Wave MCP server for AI agents.

actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to Wave and the rest of your systems. It gives your agent 69 Wave actions (28 reads, 36 writes and 5 that wait for a confirmation) and holds the Wave credential itself, so the agent never does. It paces Wave's limits and records every call.

Connect Wave free See pricing

100,000 free calls a month. No card, no email, no password: press Start a free sandbox on the next screen and keep the key it shows you.

claude mcp add --transport http actionlake https://connect.actionlake.com/mcp

69actionsin one signed file
28readlook, never change
36writecreate and update
5wait for a yesdestructive, confirmed first

Set up

Connect Wave in three steps.

01
Add actionlake to Claude.
Run the command once in Claude Code; its consent page can create a free sandbox: 100,000 calls a month, no card. In the Claude app, add a custom connector with the URL below and paste your key on the consent page. Creating a new sandbox from the Claude app is not yet tested by us.
https://connect.actionlake.com/mcp
02
Connect Wave.
Bearer token. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead. actionlake stores what you paste write-only, sealed under your tenant's key.
- access_tokenWave access token — a full-access token minted under Manage Applications in the Wave developer portal, or an OAuth2…
```
account { op: "connections.requirements", service: "wave" }
# free: exactly what to paste, and what is found for you
```

Make the first call. Check before a write.

Ask in plain words; Claude picks the action. Before anything changes, check validates the call and prices it, for free.

do    { action: "wave.businesses.get" }# get a wave business · read · 1 upstream callcheck { action: "wave.invoices.create", input: { … } }# free: inputs, permissions, cost and confirmations, nothing sent

Wave at a glance

Sign-in: Bearer token. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead.
You provide: access_token
Limits we pace to: 600 calls a minute, per connection
API covered: Wave API graphql-publicgql.waveapps.com
Built from: Wave's documentation, read 20 September 2026gql.waveapps.com developer.waveapps.com developer.waveapps.com
Service file: Version 1.0.0, signed (Ed25519)
Cached reads: 28 of 28 reads, for up to an hour; a write clears what it affects
Ready-made plans: 6 in the store
Shared entities: 5, so ask can line Wave up with your other systems
Data: Processed and stored in Sydney, Australia. No US region yet

Capabilities

What an AI agent can do in Wave.

69 actions in 1 area. Every one carries its effect, so a key can allow the reads and hold the rest.

28readlook, never change
36writecreate and update
5destructivewait for a confirmation

Accounting
69
28 read · 36 write · 5 destructive
List Wave invoices · List Wave estimates · List Wave customers · List Wave accounts

Top actions

The Wave API, shaped for agents.

The ids your agent types, what each does, and the one name it shares with other systems. 54 of Wave's 58 action names are shared with at least one other connector, so an agent learns them once.

Action	What it does	Effect	Same name in
`wave.invoices.list`List Wave invoices	List invoices of a business, one page per call; pass back `next_cursor` as `cursor` for the next page.	read	`finance.invoice.list`101 connectors
`wave.estimates.list`List Wave estimates	List estimates of a business, one page per call; pass back `next_cursor` as `cursor` for the next page.	read	`finance.quote.list`52 connectors
`wave.customers.list`List Wave customers	List customers of a business, one page per call; pass back `next_cursor` as `cursor` for the next page.	read	`crm.company.list`162 connectors
`wave.accounts.list`List Wave accounts	List accounts of a business, one page per call; pass back `next_cursor` as `cursor` for the next page.	read	`finance.ledger_account.list`36 connectors
`wave.products.list`List Wave products and services	List products and services of a business, one page per call; pass back `next_cursor` as `cursor` for the next page.	read	`finance.billing_item.list`24 connectors
`wave.invoices.create`Create a Wave invoice	Create an invoice for a customer with line items.	write	`finance.invoice.create`74 connectors
`wave.estimates.create`Create a Wave estimate	Create an estimate for a customer.	write	`finance.quote.create`52 connectors
`wave.vendors.list`List Wave vendors	List vendors of a business, one page per call; pass back `next_cursor` as `cursor` for the next page.	read	`crm.company.list`162 connectors
`wave.accounts.create`Create a Wave account	Create a chart-of-accounts account.	write	`finance.ledger_account.create`32 connectors
`wave.products.create`Create a Wave product or service	Create a product or service.	write	`finance.billing_item.create`22 connectors
`wave.invoices.delete`Delete a Wave invoice	Delete an invoice.	destructive	`finance.invoice.delete`56 connectors
`wave.estimate_payments.create`Record a manual estimate deposit payment	Record a manual deposit payment against an estimate.	write	`finance.payment.create`67 connectors

Try it

Prompts to paste into Claude.

Each one names the Wave actions it will call, so you know what it reads and what it changes before you send it.

Readread
Which Wave invoices are more than 30 days overdue? Group them by customer with the total owed.
callswave.invoices.list
Planwrite
Turn an accepted estimate into a paid invoice in Wave. Ask me before anything is sent or changed.
callswave.estimates.getwave.estimates.mark_acceptedwave.estimates.convert_to_invoicewave.invoices.approvewave.invoice_payments.create+1 more
Planwrite
Onboard a customer and send their first invoice in Wave. Ask me before anything is sent or changed.
callswave.currencies.getwave.customers.createwave.invoices.createwave.invoices.approvewave.invoices.send+1 more
Writewrite
Create a Wave invoice in Wave. Show me exactly what you will send before you save it.
callswave.invoices.create

The plan store

Ready-made plans for Wave.

6 plans in the store. Install one and your agent runs it by name; the reply says which connections are still missing. A schedule can run a plan on a timetable. There are no triggers or webhooks, by design.

Audit the chart of accounts and sales taxes
Use it when Someone wants to review how a Wave business's chart of accounts and tax codes are configured before making changes.
Effect
read
Steps
5 · loops
Needs
business id
Install
wave-chart-of-accounts-audit
Chase unpaid invoices by email
Use it when A business has unpaid invoices and someone wants a single approved batch of reminder emails sent out.
A person decidesSend payment reminder emails for number of items unpaid Wave invoices to to.
Effect
write
Steps
3 · loops
Needs
business id and to
Install
wave-overdue-invoice-chase
Archive products nobody sells any more
Use it when A Wave product list has grown stale and old items should be archived after someone signs off.
A person decidesArchive number of items Wave products untouched since modified before. Archiving is not easily undone.
Effect
write
Steps
3 · loops
Needs
business id and modified before
Install
wave-stale-product-cleanup
Follow up on estimates still awaiting a reply
Use it when Sent estimates have gone quiet and the business wants one approved round of follow-up emails.
A person decidesEmail follow-ups for number of items unanswered Wave estimates to to.
Effect
write
Steps
4 · loops
Needs
business id and to
Install
wave-estimate-followup-sweep
Turn an accepted estimate into a paid invoice
Use it when A customer has accepted an estimate and paid, and the estimate needs to become an approved invoice with the payment recorded.
A person decidesRecord a payment of amount against invoice id and email a receipt to to.
Effect
write
Steps
7
Needs
business id, estimate id, payment account id, amount, payment date and to
Install
wave-estimate-to-paid-invoice
Onboard a customer and send their first invoice
Use it when A brand new customer needs to be set up in Wave and billed for the first time in one pass.
A person decidesEmail the first invoice for name to send to.
Effect
write
Steps
7
Needs
business id, name and email
Install
wave-new-customer-first-invoice

install a plan

account { op: "plans.install", slug: "wave-chart-of-accounts-audit" }
# then ask for it by name; a schedule can run it on a timetable

Governance for Wave

Destructive actions wait for a yes.

5 Wave actions are destructive. These are all of them:

Delete a Wave invoicewave.invoices.delete
Delete a Wave estimatewave.estimates.delete
Delete a Wave customerwave.customers.delete
Delete a Wave estimate paymentwave.estimate_payments.delete
Delete an invoice paymentwave.invoice_payments.delete

A destructive action runs only with confirm: true. Under the human policy the agent cannot confirm for itself: the run stops until a named person approves, in the console or from a signed link in an email. The cap on a key is refused before the call is sent, never after.

dowave.invoices.deleteconfirm_policy: human

Delete a Wave invoice?

intent: the user asked me to delete a Wave invoice

run suspended · waiting for a named person · key wave-agent cannot confirm itself

In the console, or from an emailed signed link.

a key for this connector

account {  op: "keys.create", name: "wave-agent",  allowed_actions: ["wave.*"], cap_calls: 2000,  confirm_policy: "human_for_writes",  approval_rules: [    { match: "wave.invoices.delete", approver: "[email protected]" },    { match: "wave.estimates.delete", approver: "[email protected]" },    { match: "wave.customers.delete", approver: "[email protected]" }  ]}

Illustrative. Scoped to Wave only, capped at 2,000 upstream calls, every write confirmed, and the destructive ones approved by a named person.

Cost

What Wave costs on actionlake.

Every Wave action is one upstream call, the only thing actionlake bills. Searching, check, cost, account and any call Wave refused with 401, 403, 429 or a 5xx are free. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.

1upstream call per actionall 69 Wave actions
27actions pageeach page of a long list is one call
28reads can be cacheda cache hit costs nothing
100,000calls a month, freepaid plans from US$49 a month for 250,000

See pricing

Action index

Every Wave action.

69 actions by area: the id your agent calls, what it does, and its effect.

Accounting69

wave.account_subtypes.listList Wave account subtypesread
wave.account_types.listList Wave account typesread
wave.accounts.archiveArchive a Wave accountwrite
wave.accounts.createCreate a Wave accountwrite
wave.accounts.getGet a Wave accountread
wave.accounts.listList Wave accountsread
wave.accounts.updateUpdate a Wave accountwrite
wave.businesses.getGet a Wave businessread
wave.businesses.listList Wave businessesread
wave.countries.getGet a Wave countryread
wave.countries.listList Wave countriesread
wave.currencies.getGet a Wave currencyread
wave.currencies.listList Wave currenciesread
wave.customers.createCreate a Wave customerwrite
wave.customers.deleteDelete a Wave customerdestructive
wave.customers.getGet a Wave customerread
wave.customers.listList Wave customersread
wave.customers.updateUpdate a Wave customerwrite
wave.estimate_payments.createRecord a manual estimate deposit paymentwrite
wave.estimate_payments.deleteDelete a Wave estimate paymentdestructive
wave.estimate_payments.getGet a Wave estimate deposit paymentread
wave.estimate_payments.send_receiptSend an estimate deposit payment receiptwrite
wave.estimate_payments.updateUpdate an estimate deposit paymentwrite
wave.estimates.approveApprove a Wave estimatewrite
wave.estimates.cloneClone a Wave estimatewrite
wave.estimates.convert_to_invoiceConvert a Wave estimate to an invoicewrite
wave.estimates.createCreate a Wave estimatewrite
wave.estimates.deleteDelete a Wave estimatedestructive
wave.estimates.generate_pdfGenerate a Wave estimate PDFread
wave.estimates.getGet a Wave estimateread
wave.estimates.listList Wave estimatesread
wave.estimates.mark_acceptedMark a Wave estimate as acceptedwrite
wave.estimates.mark_sentMark a Wave estimate as sentwrite
wave.estimates.reset_acceptanceReset a Wave estimate's acceptancewrite
wave.estimates.sendSend a Wave estimate by emailwrite
wave.estimates.send_acceptance_emailSend a Wave estimate acceptance emailwrite
wave.estimates.updateUpdate a Wave estimatewrite
wave.invoice_payments.createRecord a manual invoice paymentwrite
wave.invoice_payments.deleteDelete an invoice paymentdestructive
wave.invoice_payments.getGet a Wave invoice paymentread
wave.invoice_payments.send_receiptSend an invoice payment receiptwrite
wave.invoice_payments.updateUpdate an invoice paymentwrite
wave.invoices.approveApprove a Wave invoicewrite
wave.invoices.cloneClone a Wave invoicewrite
wave.invoices.createCreate a Wave invoicewrite
wave.invoices.deleteDelete a Wave invoicedestructive
wave.invoices.getGet a Wave invoiceread
wave.invoices.listList Wave invoicesread
wave.invoices.mark_sentMark a Wave invoice as sentwrite
wave.invoices.sendSend a Wave invoice by emailwrite
wave.invoices.updateUpdate a Wave invoicewrite
wave.oauth_application.getGet a Wave OAuth applicationread
wave.products.archiveArchive a Wave product or servicewrite
wave.products.createCreate a Wave product or servicewrite
wave.products.getGet a Wave product or serviceread
wave.products.listList Wave products and servicesread
wave.products.updateUpdate a Wave product or servicewrite
wave.provinces.getGet a Wave province or stateread
wave.sales_taxes.archiveArchive a Wave sales taxwrite
wave.sales_taxes.createCreate a Wave sales taxwrite
wave.sales_taxes.getGet a Wave sales taxread
wave.sales_taxes.listList Wave sales taxesread
wave.sales_taxes.updateUpdate a Wave sales taxwrite
wave.transactions.createCreate a Wave money transactionwrite
wave.transactions.create_bulkCreate Wave money transactions in bulkwrite
wave.transactions.create_depositCreate a Wave deposit transactionwrite
wave.user.getGet a Wave current userread
wave.vendors.getGet a Wave vendorread
wave.vendors.listList Wave vendorsread

Questions

The Wave MCP server, answered.

Is there a Wave MCP server for Claude?

Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 69 Wave actions, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by Wave.

What do I need to connect Wave?

Wave access token — a full-access token minted under Manage Applications in the Wave developer portal, or an OAuth2…. The free call account { op: "connections.requirements", service: "wave" } lists exactly what to paste.

Can an AI agent delete or change things in Wave?

Only if its key allows it, and only with an explicit confirmation. 5 Wave actions are destructive, including delete a Wave invoice, delete a Wave estimate and delete a Wave customer. Each runs only with confirm: true. Under the human confirm policy, or an approval rule on the key, the run waits until a named person approves it.

Will an AI agent use up my Wave API limit?

actionlake paces every call to the limits in the Wave service file: 600 calls a minute per connection. Repeated reads are answered from cache (28 Wave actions can be), which never reaches Wave.

What does a Wave action cost?

One upstream call, the only unit actionlake bills. A list that pages bills one call per page (27 Wave actions page). Cache hits, searches, dry runs and calls Wave refused with 401, 403, 429 or a 5xx are free. The Free plan includes 100,000 calls a month with no card. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.

Which Wave API does it cover?

The Wave API graphql-public at gql.waveapps.com. It is built from Wave's documentation as read on 20 September 2026. 69 actions in 1 area, each one in the signed service file (version 1.0.0).

Does actionlake keep my Wave data, and where?

actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to an hour, and a write clears the reads it affects. Each run's request and response is kept, sealed, for your plan's trace window: 1 day on Free, 3 days on Starter, 7 days on Pro, 14 days on Team, 30 days on Business and 30 days on Enterprise. Your Wave credential is sealed under your tenant's key, never logged and never returned. Your traffic is not used to train models.

Which AI clients can use it?

Claude Code, tested by us end to end, and the Claude app as a custom connector, tested by us with an existing key. Other MCP clients that support remote servers over Streamable HTTP (MCP revisions 2025-06-18 and 2025-11-25) and OAuth dynamic client registration, or a bearer header, should connect the same way; we have not tested them. Or plain REST, under the same action names.

Give your agent Wave today.

Connect Wave free See pricing

Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free.

Wave MCP server for AI agents.

Connect Wave in three steps.

Add actionlake to Claude.

Connect Wave.

Make the first call. Check before a write.

What an AI agent can do in Wave.

Accounting

The Wave API, shaped for agents.

Prompts to paste into Claude.

Ready-made plans for Wave.

Audit the chart of accounts and sales taxes

Chase unpaid invoices by email

Archive products nobody sells any more

Follow up on estimates still awaiting a reply

Turn an accepted estimate into a paid invoice

Onboard a customer and send their first invoice

Destructive actions wait for a yes.

What Wave costs on actionlake.

Every Wave action.

The Wave MCP server, answered.

More connectors like Wave

Give your agent Wave today.