What Walnut is
Walnut is a demo tool in the B2B go-to-market stack. In the vendor's own words: “Create Interactive Product Demo.” Put plainly, a tool in this category shows the product to a buyer without a live call.
Where it sits in an outbound stack
Most outbound stacks are four layers: the data that decides who you talk to, the channel that carries the message, the writing that earns a reply, and the system of record that remembers what happened. Walnut sits in the demo layer. Tools beside it are worth comparing on coverage and price; tools in the other layers are worth wiring to it rather than replacing it with.
Using Walnut with M for Mercury
Walnut is for the conversation once it exists. Mercury's job is the part before it: finding the right people, writing an opener that sounds like the person sending it, pacing every LinkedIn touch inside safe limits, and putting every reply in one inbox. A positive reply leaves Mercury as a booked conversation — which is where a tool like Walnut takes over.
Questions people ask about Walnut
What is Walnut?
Walnut is a demo tool used by B2B sales, marketing and recruiting teams. In the vendor's own words: Create Interactive Product Demo.
What category does Walnut fall into?
Walnut is listed under Demo in this directory.
What are the alternatives to Walnut?
The closest tools in the same categories are Cobl, Navattic, Demostack, Storylane, Reprise. All 30 demo listings sit on the Demo category page.
Can I use Walnut alongside M for Mercury?
Yes. Mercury runs the LinkedIn side — audiences, journeys, message writing, safe pacing across every sender and one shared inbox — and connects out through HubSpot, Salesforce, Zoho CRM, Attio, Slack, Zapier, Make, n8n, webhooks and its own API, so Walnut can stay exactly where it is in the stack.
Listed for reference. M for Mercury is not affiliated with Walnut, and no listing here is paid for. Product names and logos belong to their owners.
Cobl
Navattic
Demostack
Storylane
Reprise
Consensus
Lancey
Telepathic