Closyn
We build the infrastructure layer for AI-native workflows. MCP servers, enrichment APIs, and developer tools that connect AI agents to the real world.
Recognize this charge?
If you see CLOSYN* on your bank or credit card statement, that means you are subscribed to one of our products. Closyn LLC is the parent company that processes payments for all of our tools.
The text after CLOSYN* tells you which product — for example, CLOSYN* CRISPY means your Crispy subscription.
Our products
Each product is purpose-built to solve a specific problem in the AI infrastructure stack. From MCP servers to data enrichment, we are building the connective tissue between AI agents and real-world systems.
Crispy
crispy.sh
LinkedIn MCP server for AI-native outreach
Juicy
soonjuicy.sh
Coming soon
Silverwall
soonsilverwall.ai
Coming soon
Zend
soonzend.sh
Coming soon
iProxy
sooniproxy.sh
Coming soon
AI-native from day one
Closyn LLC is a Delaware-registered holding company focused on AI-native infrastructure. We build tools that sit at the intersection of large language models and real-world data — MCP servers, enrichment pipelines, and developer APIs designed for the agentic era.
Every product we ship is built to be consumed by AI agents first, humans second. We believe the next wave of developer tooling will be protocol-native, composable, and invisible.
MCP-first
Our tools speak the Model Context Protocol natively, so AI agents can use them without wrappers or glue code.
Composable
Each product is a standalone building block. Combine them freely or use them independently.
Production-grade
Built for real workloads. Rate limiting, authentication, error handling, and monitoring out of the box.