Integration
Connect Harpoon and Ninety
When New Client fires in Harpoon, your agent runs Create Issue in Ninety, or New Issue Created in Ninety to Add Invoice in Harpoon. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want Harpoon and Ninety to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.
Set it up in your client
Claude Code
Run this in the directory you want to work in.
claude mcp add --transport http -s project apiant-ai https://mcp.apiant.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)Claude, web and desktop
Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.
Setup guide (opens in a new tab)Cursor
Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.
Setup guide (opens in a new tab)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)Codex and the ChatGPT desktop app
Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.
Setup guide (opens in a new tab)Any other MCP client
Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.
Setup guide (opens in a new tab)Example flows
What Harpoon and Ninety can do together
From Harpoon to Ninety
When New Client in Harpoon
then Create Issue in Ninety
When New Contact in Harpoon
then Update Issue in Ninety
From Ninety to Harpoon
When New Issue Created in Ninety
then Add Invoice in Harpoon
When New Measurable in Ninety
then Add Lead Source in Harpoon
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with Harpoon and Ninety
Triggers and actions 13 triggers · 67 actions
Trigger
New ClientTriggered when a new client is created in Harpoon.
Trigger
New ContactTriggered when a new contact is created in Harpoon.
Trigger
New ExpenseTriggered when a new expense is created in your Harpoon account.
Trigger
New Expense CategoryTriggered when a new expense category is created in Harpoon.
Trigger
New InvoiceTriggered when a new invoice is created in Harpoon.
Trigger
New PaymentTriggered when a new payment is recorded in your Harpoon account.
Trigger
New ProjectTriggered when a new project is created in Harpoon.
Trigger
New Task CategoryTriggered when a new task category is added in your Harpoon account.
Trigger
New Time EntryTriggered when a new time entry is logged in Harpoon.
Action
Add Credit EntryCreates a new credit entry on a client's account in Harpoon, recording an amount, a date and an optional note or originating invoice. Returns the credit entry that was created.
Action
Add InvoiceCreates a new invoice in Harpoon for a client or project, with an invoice number, issue date, and optional line items. Returns the invoice that was created.
Action
Add Lead SourceCreates a new lead source in Harpoon, so new clients can be tagged with where they came from. Returns the lead source that was created.
Action
Add NoteAdds a note to a client, project or invoice in Harpoon. Returns the note that was created.
Action
Add TeamCreates a new team in your Harpoon account. Harpoon populates the new team from your account details; the API accepts no team attributes on creation.
Action
Clone Time EntryCreates a copy of an existing time entry in Harpoon. The copy keeps the original's project, task and description, and starts with today's date and zero hours logged.
Action
Create ContactCreates a contact person under a Harpoon client, with their name, email address, and phone number. Returns the contact that was created.
Action
Create ExpenseRecords a one-off expense in Harpoon with its date, amount, and vendor, optionally attributed to a client, project, or expense category. Returns the expense that was created.
Action
Create Expense CategoryCreates a new expense category in your Harpoon account so expenses can be grouped under it.
Action
Create ProjectCreates a project in Harpoon for a client, with its budget, rate, and start and end dates. Returns the project that was created.
Action
Create Time EntryLogs hours worked in Harpoon for a team member on a given date, optionally against a client or project. Returns the time entry that was created.
Action
Delete ClientDeletes a client from your Harpoon account.
Action
Delete ExpensePermanently deletes an expense from your Harpoon account.
Action
Delete InvoicePermanently removes an invoice from Harpoon. Returns Harpoon's confirmation that the invoice was deleted.
Action
Delete NoteDeletes a note from your Harpoon account.
Action
Delete Recurring ExpenseDeletes a recurring expense template from Harpoon by its id, so it stops generating new expenses.
Action
Delete Recurring InvoiceStops and removes a recurring invoice schedule in Harpoon so it no longer generates invoices. Returns Harpoon's confirmation that it was deleted.
Action
Delete Time EntryDeletes a time entry from your Harpoon account.
Action
Get ClientReturns a single client from your Harpoon account, including its name, contact details and other stored attributes.
Action
Get Client CreditsReturns a client's credit entries in Harpoon, along with the credit still available on the account.
Action
Get ContactReturns a single Harpoon contact, including their name, email address, phone number, and the client they belong to.
Action
Get EstimateReturns a single estimate from your Harpoon account, including its client, line items, totals and status.
Action
Get ExpenseReturns a single expense from your Harpoon account, including its amount, date, vendor, category and the client or project it is attached to.
Action
Get Expense CategoryReturns a single Harpoon expense category with every detail it carries, including its name and budget settings.
Action
Get InvoiceFetches one invoice from Harpoon by its id, with its client, line items and payment totals. An error occurs if the invoice is not found.
Action
Get Lead SourceReturns a single lead source from your Harpoon account.
Action
Get ProjectReturns a single project from your Harpoon account, including its client, budget and status.
Action
Get Recurring ExpenseFetches one recurring expense template from Harpoon by its id, with its vendor, amount, frequency and schedule. An error occurs if it is not found.
Action
Get Recurring InvoiceReturns a single recurring invoice schedule from Harpoon, including its client, frequency, dates, and line items.
Action
Get TaskReturns a single task category from your Harpoon account, including its name and hourly rate.
Action
Get TeamReturns a single team from your Harpoon account, including its name, email address, phone, address, owner and whether it is active.
Action
Get Time EntryReturns a single tracked time entry from your Harpoon account, including its date, hours, client, project and notes.
Action
List ContactsReturns the contacts in your Harpoon account, including each contact's name, email address and phone number.
Action
List EstimatesReturns the estimates in a Harpoon account, optionally narrowed to a year, client, project, status, or search text.
Action
List Expense CategoriesReturns the expense categories set up in Harpoon, each with its budget settings.
Action
List ExpensesReturns the expenses in your Harpoon account, optionally narrowed by date range, client, project, category, billing status or search text.
Action
List InvoicesReturns the invoices in your Harpoon account, optionally narrowed by year, client, project, status or a search term.
Action
List ProjectsReturns the projects in a Harpoon account, with their client, budget, rate, and dates.
Action
List TeamsReturns the teams in your Harpoon account, along with the total number of teams found.
Action
List Time EntriesReturns time entries from your Harpoon account — either the timers running now or logged history for a date range — optionally narrowed by client, project, task, team member or billing status.
Action
Update ExpenseUpdates an existing expense in your Harpoon account. Only the values you supply are changed.
Action
Update InvoiceUpdates an existing invoice in your Harpoon account. Only the values you supply are changed.
Action
Update ProjectUpdates an existing project in Harpoon — its name, client, billing type, status, dates, budget and task rates. Returns the updated project.
Action
Update Recurring ExpenseUpdates a recurring expense in Harpoon — its vendor, amount, frequency, category, dates, and status. Anything left blank keeps its current value. Returns the updated recurring expense.
Action
Update Recurring InvoiceUpdates an existing recurring invoice template in your Harpoon account. Only the values you supply are changed.
Action
Update Time EntryUpdates an existing time entry in Harpoon — its date, hours, description, project, task or billing state.
Trigger
New Issue CreatedTriggered when a new issue is created in Ninety, optionally only on one team or only short-term vs long-term issues.
Trigger
New MeasurableTriggered when a new measurable (KPI) is added to your Ninety scorecard, optionally only those tracked over a given period like weekly or monthly.
Trigger
New TeamTriggered when a new team is created in your Ninety company.
Trigger
To-Do Created, Updated, or DeletedTriggered when a to-do is created or changed in Ninety — including being completed or archived — optionally only on one team or only personal to-dos. Ninety's API does not report hard deletions, so a removed to-do simply stops appearing rather than firing this trigger.
Action
Create IssueCreates an issue on a Ninety team's issues list.
Action
Create MilestoneCreates a milestone on a Ninety rock, with a title and due date.
Action
Create RockCreates a rock (a quarterly goal) for a Ninety team, with a due date, status and level.
Action
Create To-DoCreates a to-do on a Ninety team, with a due date and optional description.
Action
Delete IssueDeletes an existing Issue in Ninety by its ID.
Action
Delete Measurable NoteDeletes the note on a Measurable for one scorecard period.
Action
Delete Measurable ScoreDeletes the score on a Measurable for one scorecard period.
Action
Delete RockDeletes a Rock in Ninety by its ID. Returns the deleted Rock's ID along with the status Ninety returned.
Action
Delete To-DoDeletes a to-do in Ninety by its ID. Use it to remove a to-do that was created by mistake or is no longer needed.
Action
Find IssueSearches Ninety for issues matching the words you provide, optionally narrowed to one team or to short-term vs long-term issues. Returns the matching issues.
Action
Find MeasurableSearches Ninety's scorecard for measurables (KPIs) matching the words you provide, optionally limited to a tracking period like weekly or monthly. Returns the matching measurables.
Action
Find MilestoneSearches Ninety for milestones by title. Ninety carries milestones on their rocks, so this reads the rocks (optionally just one team's) and returns the milestones whose title matches, optionally limited to a single rock.
Action
Find RockSearches Ninety for rocks (quarterly goals) matching the words you provide, optionally narrowed to one team or one status. Returns the matching rocks.
Action
Find TeamReturns the teams in your Ninety company, optionally only those whose name contains the words you provide. Use it to get the team ID other Ninety actions need.
Action
Find To-DoSearches Ninety for to-dos matching the words you provide, optionally narrowed to one team, to personal to-dos, or to finished vs open ones. Returns the matching to-dos.
Action
Update IssueChanges an existing issue in Ninety — its title, detail, team, priority, short-term/long-term setting, or whether it is solved. Fields you leave blank are left as they are.
Action
Update Measurable NoteSaves the note on a Ninety scorecard measurable for one period, replacing any note already there.
Action
Update Measurable ScoreRecords the score on a Ninety scorecard measurable for one period, replacing any score already there.
Action
Update MilestoneChanges an existing milestone in Ninety — its title, detail, due date, owner, or whether it is finished. Fields you leave blank are left as they are.
Action
Update RockChanges an existing rock (quarterly goal) in Ninety — its title, detail, status, owner, team, quarter, due date, or whether it is archived. Fields you leave blank are left as they are.
Action
Update To-DoChanges an existing to-do in Ninety — its title, detail, due date, owner, team, repeat setting, or whether it is done or archived. Fields you leave blank are left as they are.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
Reviews
What our customers say
More from Harpoon
Harpoon to BugcrowdBugcrowd API for interacting and tracking the reported issues programmatically
Harpoon to HubSpotHubSpot is your all-in-one stop for all of your marketing software needs.
Harpoon to SalesforceSalesforce is a leading enterprise customer relationship management (CRM) platform.
Harpoon to SlackSlack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...
Harpoon to Google SheetsGoogle Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.
Harpoon to GmailGmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...
More into Ninety
HubSpot to NinetyHubSpot is your all-in-one stop for all of your marketing software needs.
Google Sheets to NinetyGoogle Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.
Gmail to NinetyGmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...
Google Calendar to NinetyGoogle Calendar is a time management tool providing scheduling features, event reminders, and integration...
Google Drive to NinetyGoogle Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...
Mailchimp to NinetyMailchimp marketing automation and email platform.
Questions
Harpoon and Ninety, answered
What can start an automation from Harpoon?
Any of Harpoon's 9 triggers in the catalog, including New Client, New Contact, New Expense and New Expense Category. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Ninety when something happens in Harpoon?
Any of Ninety's 21 actions, including Create Issue, Create Milestone, Create Rock and Create To-Do. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Ninety to Harpoon?
Yes. When something happens in Ninety, your agent can act in Harpoon too. This page covers both directions: Ninety's triggers and Harpoon's actions are listed here as well.
Do I have to build a connector for Harpoon or Ninety?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use Harpoon and Ninety without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.