The Agent-Human Interface Company
One API for everything your agent needs.
One SDK and API for identity, memory, tools, communication, money, permissions, and execution.
Build the application without assembling its foundation from scratch. Visca connects agent capabilities; Mellow brings them into a workspace and SDK.
Identity, knowledge, communication, and execution connected to the work.
At work
Give your application a face and voice.
Explore conversations that connect people to the context and tools behind their work.
Illustrative application areas · Interface and device availability varies.
Everything behind
a useful agent.
Give an agent identity, context, memory, knowledge, tools, responsibilities, and permission to act. Explore all 14 platform foundations, then choose the capabilities your application needs.
Know who you are interacting with.
Keep the same agent identity behind its face, voice, and workspace. Show its role and accountable human so recognition comes with an understandable scope.
The briefing has a responsible agent, from the first request to the finished result.
One identity. One shared context. One continuing piece of work.
Explore all 14 platform propertiesOne interaction.
Work that continues.
Explore how a conversation becomes agent activity, files, memory, and a decision. The work retains its context as people and agents contribute.
Build your agent.
Choose its capabilities.
Your application needs more than a model. Bring identity, context, memory, knowledge, tools, communication, and permissions into one developer platform.
Use Mellow’s workspace or build your own experience with its SDK. Explore interaction capabilities from real-time avatars to spatial, neural, and subvocal directions.
Read the manifesto
INTERACTION CAPABILITIES
Choose how people
meet your agent.
Interaction is one part of the agent foundation. Add a face for conversation, explore spatial context, or evaluate emerging silent inputs. Connect each supported interface to your application’s identity, memory, tools, and permissions. Availability is shown for each mode.
Visual presence
Give the conversation a face.
Design how an agent appears, responds, and shares visual context. Connect its presence to the same identity and work behind the conversation.
Explore face
Inside the platform
One platform.
Your application on top.
Behind every interface: execution, identity, memory, shared services, and context. Explore the stack that connects a human interaction to accountable agent work.
Direction · Judgment · Outcomes
Use Mellow. Or build your own.
Mellow is the workspace and SDK built on Visca. Use the personal workspace or build a custom interface around shared context, tools, and permissions. Personal workspace use is free forever.
- Natural direction
- Clear review
- Finished outcomes
Review the briefing and decide what is ready to share.
Conceptual product architecture. The plates visualize software layers, not physical hardware. Availability depends on the deployment.
Spatial computing.
Context beside the work.
Explore how voice, place, and shared context could support a researcher through a lab workflow. This interactive scenario is a research preview; device support varies.
Set the direction.
Give the outcome to your team. They gather the context and divide the work.
Friday’s lab briefingILLUSTRATIVE EXPERIENCE
Prepare Friday’s lab briefing. Bring together the research, the previous run, and the decisions we need to make.
I’ll bring it together, prepare the recommendations, and propose time for your review.
Same agents. Same context. A different way to connect.
Illustrative air-gapped lab workflow. Local services assumed; no microphone, location, or instrument access is used.Human interaction.
Across the worlds you work in.
From an office conversation to a lab bench or a machine on site, the interface should fit the task. Explore the application areas we plan to serve.
Illustrative environmentTalk through the work. Inspect the result.
Build voice and visual experiences for research, code, and documents. Let people explain an outcome, inspect the evidence, and redirect the agent without losing the shared task.
“Prepare the meeting. Bring me the decisions.”Explore this world
One workplace across professional and personal pursuits. These scenarios illustrate the product vision; available integrations and physical capabilities depend on the deployment.
Natural interaction.
Explicit authority.
Speaking, looking, or interacting with a device is not blanket consent. Define what an agent may access, which actions need review, and how a person can take over.
Choose a deployment that fits your data and environment. Air-gapped operation remains a deployment option requiring local models, services, and validated device dependencies.
Your authority stays yoursReady when you are.
A clear decision, with the work behind it.
In our briefing example, the approved document will be shared with the internal research team. Internal notes stay private.
The example brings the intended recipient, final version, and supporting sources into view before sharing.
Approve the specific action, ask for a change, or hold it. Your location and activity do not grant extra permissions.
One API for everything your agent needs.
Build on the Visca developer platform. Explore Mellow’s workspace and SDK. The workspace is free forever for personal use.
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