CUSTOMER STORY / SEMICONDUCTORS
How Espressif deploys Kapa across its docs, products, and internal teams
Espressif
Semiconductors
"We tried building our own AI agent for our technical documentation. It never gained much traction. Kapa did, fast. Now our users get instant, cited answers on their own, no waiting for us."
Krzyzstof B.
Customer Education Leader, Espressif
About Espressif
Espressif Systems is a fabless semiconductor company headquartered in Shanghai, best known for the ESP8266 and ESP32 families of Wi-Fi and Bluetooth SoCs that power a large share of the IoT and maker projects shipping today. Its lineup spans Xtensa and, increasingly, RISC-V cores across the ESP32-C, ESP32-H, and high-performance ESP32-P4 lines, and developers build on top with the open-source ESP-IDF framework, Arduino support, and an enormous public GitHub presence. That mix of a broad chip portfolio and a largely self-serve developer base means technical questions arrive around the clock, across dozens of parts and framework versions.
That reach is exactly what shapes the deployment below. The goal is to put an accurate, source-cited answer everywhere an Espressif developer already works, from the public docs to the tools they build with, rather than in one place they have to go find.
Challenge
Espressif's documentation, datasheets, API references, and sample code are vast, spanning many chips and ESP-IDF versions. Its developers, from hobbyists to professional teams, expect an instant, specific answer, but finding the exact detail for a given ESP32 variant and SDK version across docs, PDFs, and GitHub is slow.
At community scale, the volume of repeat questions is enormous, and no documentation team can keep pace by hand.
Solution
Espressif deploys Kapa as an answer layer across its public surfaces and inside its own products, all grounded in one connected knowledge base. Kapa ingests documentation, GitHub code, datasheets, PDFs, OpenAPI specs, and YouTube content alongside material in an S3 bucket, and layers in Custom Answers for canonical responses to common questions. The corpus stays in sync as chips and SDK releases evolve, so every surface answers from the same current source of truth.
Documentation Agent
Deployed on documentation.espressif.com, it lets developers ask natural-language questions and get precise, source-cited answers from guides, datasheets, and API references. Instead of scanning multiple documents to pin down a setting for a specific ESP32 part and ESP-IDF version, a developer gets the exact answer in seconds, with links back to source, and answers stay accurate as chips and framework versions evolve because they are grounded in the current docs.
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Website Agent
Embedded on espressif.com, it gives visitors verified, source-cited answers directly on the product and marketing pages, leaning on getting-started and capability content to answer product-fit and pre-sales questions in the moment. Instead of leaving the page to hunt through the docs to confirm whether a given ESP32 part supports a feature or protocol, a visitor gets a cited answer on the spot, turning a static page into an interactive one.
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MCP Server
A hosted MCP endpoint at mcp.espressif.com feeds product context to coding agents like Claude Code and Cursor as developers work, grounding them in ESP-IDF, APIs, and chip specifics. For embedded development, where a wrong register or an unsupported feature combination costs real debugging time, reasoning from authoritative Espressif sources keeps generated code closer to correct on the first try.
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Why it works
Every deployment runs on the same corpus and answer engine, so an answer on the website, in the docs, inside an Espressif-built experience, through the Retrieval API, or in a coding agent stays consistent and traceable to source.
Espressif adds a surface without rebuilding its knowledge base, and updates reach every agent at once as chips and SDKs evolve, which is how a lean documentation team keeps pace with a community of millions.