Use AssistCall with BoldTrail (formerly kvCORE)

AssistCall answers your business calls 24/7 and can send each call, message and booking to BoldTrail (formerly kvCORE) through Live API actions, Zapier, n8n.

BoldTrail (formerly kvCORE): An all-in-one platform for agents and brokerages that combines a CRM, IDX websites, lead generation and Smart Campaign automation, and is often provided by the brokerage.

Connects

Example call

A seller calls the office line after hours asking for a home valuation. AssistCall takes their name, address and best callback time, and Zapier creates the contact in BoldTrail with the call summary. The contact enters your team's lead routing, and an agent sees it in the morning.

When a new caller leaves their details, create the contact in BoldTrail through Zapier's Create Contact action with the summary in notes and a lead source of AssistCall, using an Office or Team key so it enters your lead routing
Update an existing BoldTrail contact through Zapier's Update Contact action after a follow-up call
During a call, query BoldTrail's V2 contacts API with a token you generated in Lead Dropbox to check whether the caller is already in your database

How it connects

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.
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 BoldTrail (formerly kvCORE)'s API

Self-serve API: you can create a key in your account
Style: REST (JSON), kvCORE Public API V2
Authentication: Bearer API token (JWT) generated by the user
On Zapier: yes. On Make: no.

Users generate tokens themselves under Lead Engine > Lead Dropbox > My API Tokens, with Contacts, User or All scopes. Each user gets up to three tokens, and each lasts one year. Agents share their own data and admins share data at their entity level. The base URL is https://api.kvcore.com (v2/public). OAuth is paused, so tokens are the only option. Inside Real Estate does not help set up vendor integrations. The Zapier app is still listed under the kvCORE name: 2 triggers (New Lead, Campaign Action), 2 actions (Create Contact, Update Contact). It uses a separate Zapier Key from Lead Dropbox, and the key level (Agent, Office, Team, Company) decides lead routing. Smart Campaigns can fire outgoing webhooks, but only as GET requests with query parameters. Make has no verified BoldTrail app, only third-party-built ones, so it is not listed. Phone-number search parameters on the contacts endpoint were not confirmed in the public docs.

Not included: no one-click BoldTrail (formerly kvCORE) app, no listing in BoldTrail (formerly kvCORE)'s marketplace, no two-way sync, and no partnership with Inside Real Estate.

Researched by the AssistCall team and checked against Inside Real Estate's public pages on October 24, 2026. BoldTrail (formerly kvCORE) is a trademark of Inside Real Estate. AssistCall is an independent product of Starling Global LLC and is not affiliated with, endorsed by, sponsored by or approved by Inside Real Estate.

More Real estate CRMs integrations

Follow Up Boss: A lead management CRM for real estate agents, teams and brokers that collects leads from many sources and runs follow-up through action plans, texting and calling.
BoomTown: A real estate platform for teams and brokerages that combines lead generation, IDX websites, a CRM and lead concierge services.
CINC: A lead generation and CRM platform for real estate teams and brokers that runs paid ads, IDX sites and lead follow-up in one system.
LionDesk: A low-cost CRM for real estate agents with contact management, drip campaigns, texting and video email.
Lofty: An AI-driven CRM, IDX website and lead generation platform for real estate agents, teams and brokerages, formerly called Chime.
Real Geeks: A sales and marketing platform for agents and teams that combines IDX websites, lead generation and the Lead Manager CRM.

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.