
Perigon
Curated business intelligence data API, market events and consolidated signals for AI agents and BI dashboards

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

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| Website | cafecito.tech | diffyn.com |
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| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
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In their own words, as submitted to SaaSHub.


The API is part of the larger Espresso product suite, which also includes Espresso Publications: Editorials, X, Threads — our curated digests and deeper human-readable analysis built on the same high-signal intelligence layer. Think of it as concentrated shots of structured intelligence: event...
No description of Diffyn yet.
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


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The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
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As answered by people managing Espresso API MCP and Diffyn.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Espresso API MCP's answer
Higher Precision for Cheaper Price
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Espresso API MCP's answer
Neon serverless Postgres DB, Nvidia-Nemotron-Nano language models
Diffyn's answer:
React, Next.js, POSTGRESQL
Espresso API MCP's answer
AI Agents and BI Dashboard Developers
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
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