Your stack, your choice. Make it work together.
Connect the CRM, WEM, UC, AI models and systems you already rely on with 300+ pre-built integrations and open APIs/SDKs. Keep what works. Connect what matters.
Trusted by leading enterprises across every industry
300+ Integrations
Connect the systems your CX already depends on.
Bring Five9 into the CRM, collaboration, cloud and business tools your teams already use. With 300+ pre-built integrations, you can connect what matters without rebuilding your operation.
-
Salesforce
-
ServiceNow
-
Dynamics 365
-
Google Cloud
-
Cresta
-
Zendesk
Security & Compliance
Capabilities
Connect what matters. Build what's missing.
Start with the systems you already run. Use certified CRM integrations, open APIs/SDKs, partner solutions, and UC integrations to connect the rest.
CRM integrations that meet teams where they work
Certified integrations connect Five9 directly into the CRM, core banking, EHR and MarTech systems your teams already use — no middleware required.
- Screen pops and click-to-dial in Salesforce, ServiceNow, Microsoft Dynamics, Oracle and Zendesk
- Fiserv, Jack Henry and Epic integrations for regulated industries
- Real-time MarTech sync
- Agent Desktop Toolkit+ for web-based and homegrown systems
APIs/SDKs for what isn’t pre-built
Extend Five9 into the custom apps, agent desktops, workflows and routing your operation needs with REST APIs, SDKs, and real-time media and data streams.
- Real-time transcription for live conversation data
- Media and data streams for custom desktops and routing
- Full sandbox, documentation and GitHub code samples
- Agent-to-agent protocols for AI agents you build yourself
Bring your partner ecosystem
A vetted ISV partner ecosystem — not a generic app catalog stretched to fit — wired directly into the interaction.
- Authentication & fraud detection before an agent ever answers
- Operational dashboards using the metrics ops teams already trust
- Post-interaction customer surveys wired into the interaction itself
- Industry-specific integrations for specialized workflows
UC integrations that bring the back office in
Connect Microsoft Teams, Zoom Phone and RingCentral to the contact centre so agents can reach the right expert without breaking the interaction.
- See availability with real-time presence
- Call, transfer or conference in a few clicks
- Bring subject-matter experts into the interaction
- Work from the same agent desktop — no extra login
What happens when it all works together.
See what happens when Five9 works with the technology your teams already depend on — instead of asking you to start over.
The Ivy Collection
A century-old luxury hospitality group behind iconic restaurants and private clubs, The Ivy Collection needed real-time guest data in front of agents to deliver its signature high-touch service. Five9 Salesforce Connector put its CRM inside the contact centre.
Being able to understand who's calling us, what they need and having all of our CRM information in front of contact centre staff when someone calls has made a huge difference.
Why Five9
Why Fusion on Five9
The hard part isn’t connecting more technology. It’s making it work together without locking it all together. With Five9, openness is built into the platform so you can keep what works, connect what matters and change what comes next. We were built for the hard part.
Open architecture. Your choice.
Use the CRM, WEM, UC platforms and AI models that fit your business. Five9 is designed to connect across them, not force them into one stack.
An ecosystem that's already there
Tap into 1,400+ partners and certified integrations across the systems your teams use every day.
Change without starting over
Add new tools, build new workflows and evolve your architecture without replacing everything that already works.
Go deeper
See the platform behind the proof.
Every part of the Five9 Genius CX Platform takes on its share of the hard part. Explore how each one works.
FAQ
Frequently asked questions about Five9 Fusion
Common questions about the open platform, certified integrations and open APIs on Five9.
-
Five9 offers CRM integrations for the platforms contact centres already run on, including Salesforce, ServiceNow, Microsoft Dynamics, Oracle and Zendesk. Pre-built integrations surface the full customer record inside the agent desktop automatically, and deeper builds like Five9 Fusion for Salesforce and Five9 Fusion for ServiceNow embed voice and AI natively inside the CRM itself instead of bolting it on from outside. The agent doesn't switch screens, and the customer doesn't repeat themselves.
-
Five9 ships certified CRM integrations with Salesforce, ServiceNow, Microsoft Dynamics, Oracle and Zendesk, with telephony controls and screen pops embedded directly in the CRM, so there's no middleware in between. For web-based or homegrown systems outside that list, Agent Desktop Toolkit+ adds the REST APIs and reference UIs to build the connection. Either way, the agent works from one screen instead of switching between the contact centre and the CRM.
-
Yes. Five9 Fusion for Healthcare is Epic-built, not just Epic-ready, with native screen-pop and click-to-dial straight into Cheers, Hyperspace and Cadence, no middleware required. It also embeds AI agents for tasks like scheduling and prescription refills, directly inside the same Epic workflow. For a healthcare contact centre, that means one system to work from instead of two.
-
Yes. Five9 UC integrations connect Microsoft Teams, Zoom Phone and RingCentral into one consolidated directory with real-time presence, so agents can see who's available and call, transfer or conference them in without leaving the interaction. That back-office expert shows up inside the same agent desktop agents already use, with nothing extra to log into. It's built to lift first contact resolution by getting the right person into the conversation faster.
-
Five9 is WEM-agnostic: it integrates with the workforce engagement management platform an organization already runs, including Verint and Calabrio, rather than forcing a switch. That means a contact centre keeps its existing forecasting, scheduling and quality processes intact while still connecting them to Five9. Openness here is the point, not a limitation to work around.
-
Yes. The Five9 Developer Program gives engineering teams APIs/SDKs, real-time transcription, real-time media and data streaming, and agent-to-agent protocols for anything that isn't already pre-built. That comes with a full sandbox, documentation and GitHub code samples, plus dedicated support. Between Agent Desktop Toolkit+ for homegrown systems and the open Developer Program, there's a path to build almost any integration a standard catalog wouldn't cover.
-
Yes: Five9 runs on an open, BYOLLM (bring-your-own-LLM) architecture that works with Google, OpenAI, Anthropic or a model fine-tuned in-house. No single AI vendor is required to run the platform, so a business keeps whichever model it already trusts, or swaps in a new one, without rebuilding its CX stack. That same openness carries through the CRM, WEM and UC integrations already connected to Five9 Fusion, not just the AI layer.
-
Five9 ships 300+ pre-built integrations across CRM, cloud and collaboration platforms, backed by a 1,400+ partner ecosystem of ISVs, systems integrators, and cloud providers.
Keep what works. Connect what matters.
See how Five9 Fusion brings your CRM, UC platforms, AI models and other critical systems together without locking your operation into one stack.