Integrations / CRM and sales

Use AssistCall with Close

AssistCall answers your business calls 24/7 and can send each call, message and booking to Close through Webhook, Live API actions, Zapier, Make, n8n.

Close: A sales CRM with built-in calling, email and SMS, for small inside sales teams that do a lot of outreach.

Connects

Example call

A lead calls back while every rep is on another call. The receptionist takes their name, number and why they called. A Zap finds the lead in Close, adds the summary as a note and creates a follow-up task, and the rep sees the task in their Close inbox.

• After every call, a Zap finds the lead in Close and adds the AssistCall summary and recording link as a note.
• lead.captured events create a new lead and a follow-up task in Close through Zapier.
• Urgent message.taken events start an n8n workflow that uses your Close API key to create a task on the lead, so a rep calls back first thing.

How it connects

• Webhook: Signed JSON for every call, message and booking, sent to any HTTPS URL you choose.
• Live API actions: During the call, the receptionist calls the app's API with your key to look up or create records.
• Zapier: Send AssistCall events to a Zap (Webhooks by Zapier, Catch Hook), then use the app's Zapier actions. Needs a paid Zapier plan.
• Make: Start a Make scenario with a custom webhook and use the app's Make modules.
• n8n: Start an n8n workflow with a webhook node, then call the app with its node or an HTTP request.
• Call forwarding: Forward your business line to AssistCall when busy, after hours or always. Works with any carrier.

About Close's API

• Self-serve API: you can create a key in your account
• Style: REST (JSON)
• Authentication: API key over HTTP Basic (key as the username, blank password), or OAuth 2.0
• On Zapier: yes. On Make: yes.

All plans (Solo, Essentials, Growth, Scale) include API access and an event log. Keys are created under Settings > Developer > API Keys, and each key belongs to one user. Rate limits apply per endpoint group and per key, and the organization-wide limit is three times a single key's. 429 responses include a rate_reset value. Webhook subscriptions take JSON event filters.

Not included: no one-click Close app, no listing in Close's marketplace, no two-way sync, and no partnership with Close.com, Inc..

Researched by the AssistCall team and checked against Close.com, Inc.'s public pages on October 24, 2026. Close is a trademark of Close.com, Inc.. AssistCall is an independent product of Starling Global LLC and is not affiliated with, endorsed by, sponsored by or approved by Close.com, Inc..

More CRM and sales integrations

• HubSpot: A CRM with a free tier and paid Starter, Professional and Enterprise plans that small and mid-size businesses use to track contacts, deals, marketing emails and support tickets.
• Pipedrive: A pipeline-based sales CRM that small sales teams use to track deals, contacts and follow-up activities.
• Salesforce: A CRM used by companies of every size. Its Starter Suite ($25 per user a month) and Pro Suite ($100 per user a month) are the packages aimed at small businesses.
• Zoho CRM: A CRM from Zoho with a free edition and low-cost paid editions, used to track leads, contacts, deals and sales activity.
• Copper: A CRM that runs inside Google Workspace, keeping contacts, leads, deals and projects next to Gmail and Google Calendar.
• Freshsales: A sales CRM from Freshworks with built-in phone and email and AI deal insights, for small and mid-size sales teams.

All product and company names in this directory are trademarks or registered trademarks of their respective owners, used only to identify systems AssistCall can send call information to or receive information from. Their use does not imply any affiliation with or endorsement by their owners. AssistCall connects using signed webhooks, the business's own API keys, automation platforms (Zapier, Make, n8n) the business sets up in its own account, and call forwarding. AssistCall does not provide one-click connectors, marketplace apps, certifications or two-way record or calendar sync, and does not sign HIPAA business associate agreements. Vendor features, plans and API access can change; information last checked October 24, 2026.