Sync lists
“Pull contacts from our API.”
Import from your product, CRM, or data warehouse. Start with open-source CRMs like Twenty, with more integrations coming.
Agentic email ops
Ask your agent to run email operations.
Crusher gives AI agents a safe, open-source control plane for email workflows: syncing lists, building funnels, tracking campaigns, testing copy, and monitoring deliverability through SES.
Open-source coreCloud or self-hostedRole-based access control
Live backend
Crusher API status loads in the browser.
Ask Crusher“Sync my list from our API into Crusher and flag contacts missing consent.”
Ask Crusher“Create a 3-step reactivation funnel for warm leads from Twenty.”
Ask Crusher“Track this campaign and pause if complaints or bounces spike.”
What agents can do
Turn email work into controllable tasks.
Crusher is for teams that want agents to operate email without turning them loose on a raw sending API. Agents can prepare the audience, propose the funnel, request approval, send in controlled cohorts, learn from delivery signals, and report what happened.
Create funnels
“Build a follow-up sequence.”
Ask your agent to turn a segment into lifecycle, pipeline, partner, or newsletter flows with sender identity, timing, and approval rules attached.
Track campaigns
“Tell me what happened.”
Monitor sends, deliveries, bounces, complaints, suppressions, and throttle signals so every next step is based on operational reality.
A/B test iteratively
“Try a safer variant.”
Let agents propose controlled copy and cohort tests, compare results, and improve the next send without losing human oversight.
Protect deliverability
“Ramp this slowly.”
Verify domains, pace cohorts, enforce suppressions, and pause automatically when risk signals cross the thresholds you set.
Coming soon
“Personalize the replies.”
Inbound reply handling will help agents triage responses, draft personalized follow-ups, and keep human review in the loop.
Open source plus hosted control
Use Crusher your way.
Run the open-source core yourself or use Crusher Cloud. Teams that need hosted workflow, role-based access control, approvals, and shared visibility can use the dashboard while still keeping a clear path to self-hosting.
Fast setup for teams that want to start managing campaigns immediately.
Run the core close to your data and connect to Crusher Cloud when you want dashboard control.
Twenty support first, with more source systems and workflow integrations coming.