Integration
Connect Nextiva to fastbill
When New Missed Call fires in Nextiva, your agent runs Add Payment for Invoice in fastbill. 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 Nextiva and fastbill 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)Grok
Open grok.com/connectors, choose New Connector, then Custom, and paste the address. Grok signs you in in your browser.
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 Nextiva can start in fastbill
When New Missed Call in Nextiva
then Add Payment for Invoice in fastbill
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 Nextiva and fastbill
Triggers and actions 4 triggers · 31 actions
- New Missed Call
Triggers when a call is missed in Nextiva.
- New Received Call
Triggers when an incoming call is received in Nextiva.
- New Voicemail
Triggers when a new voicemail is received in Nextiva.
- New Workitem
Triggers when a new workitem (call, text or email) is created in Nextiva.
- Get Conversation
Returns a Nextiva conversation together with its workitems.
- Get Unread Counts
Returns the number of unread conversations, mentions, calls and voicemails.
- Get Workitem
Returns one Nextiva workitem (a call, text or email) by its ID.
- Hang Up Call
Ends an active Nextiva call.
- Hold Call
Puts an active Nextiva call on hold.
- List Conversations
Returns conversations in the Nextiva account.
- List Workitems
Returns workitems (calls, texts, emails) in the Nextiva account.
- Mute Call
Mutes an active Nextiva call.
- Send Email Response
Sends an email reply on a Nextiva email workitem.
- Send SMS
Sends an outbound SMS message from Nextiva.
- Transfer Workitem to Agent
Transfers a Nextiva workitem to another agent.
- Transfer Workitem to Inbox
Transfers a Nextiva workitem to an inbox (queue).
- Unmute Call
Unmutes a muted Nextiva call.
- Add Payment for Invoice
Adds full payment for invoice
- Add Payment for Revenue
Adds full payment for revenue
- Create Customer
Creates a new customer in FastBill
- Create Invoice
Creates a new invoice
- Create Offer
Creates a new offer in FastBill
- Create Revenue
Creates a revenue entry
- Delete Customer
Delete a FastBill customer by ID.
- Delete Invoice
Delete a FastBill invoice by ID.
- Delete Offer
Delete a FastBill offer/estimate by ID.
- Finalize Invoice
Converts an invoice draft to a final invoice
- Get Customer
Fetch a single FastBill customer by ID.
- Get Invoice
Fetch a single FastBill invoice by ID.
- Get Offer
Fetch a single FastBill offer/estimate by ID.
- Search Customer
Search for a Customer
- Search Invoice
Find an invoice
- Send Invoice by Email
Send an invoice by email
- Update Customer
Update fields on an existing FastBill customer.
- Update Invoice
Update fields on an existing (draft) FastBill invoice.
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
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Questions
Nextiva and fastbill, answered
What can start an automation from Nextiva?
Any of Nextiva's 4 triggers in the catalog, including New Missed Call, New Received Call, New Voicemail and New Workitem. Describe the moment in plain language and your agent picks the right one.
What can your agent do in fastbill when something happens in Nextiva?
Any of fastbill's 18 actions, including Create Customer, Create Invoice, Create Offer and Create Revenue. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from fastbill to Nextiva?
fastbill has no triggers in the catalog today, so automations start in Nextiva. If you need the other direction, ask: your agent reads fastbill's API documentation and adds it.
Do I have to build a connector for Nextiva or fastbill?
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 Nextiva and fastbill 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.