New: a skill and MCP for agents

Agentic open-source
audio framework.

Write the DSP once in C++ and ship it as CLAP, VST3, Audio Unit, LV2 and a standalone app. A skill and an MCP server give Claude Code, Codex and Cursor the real API, so your agent stops guessing.

Get the SDKRead the guide

Features

Everything a plugin needs.

And nothing it doesn't: no framework runtime, nothing to install, and our own code from the DSP to the format wrappers.

Every plugin format

CLAP, VST3, Audio Units and LV2 from a single compile, plus a standalone app with its own audio.

Every desktop, and the browser

The same DSP also compiles to WebAssembly, so a live preview is the shipped plugin, not a model of it.

sonore_add_plugin(MyPlugin
  SOURCES plugin.cpp
  CLAP MyPlugin  VST3 MyPluginVST3
  AU MyPluginAU  LV2 MyPluginLV2)

Fits your build

CMake helpers do the bundling. Build it in your tree, or find_package an installed SDK.

LA-2A · 1176 · VCAFuzz FaceTS-808Tape hysteresisDattorro plateDiode ladderTrue-peak limiterLUFS

DSP from the papers

Compressors, circuit-solved drives, tape, reverbs and metering, written from the published maths.

Native or web UI

A software-rasterised editor with no browser process, or your own HTML in the OS webview.

Instruments, MIDI and MPE

Notes in, MIDI out and per-note expression. The process signature you write decides which; there is no flag to set.

  • 494 KB

    a whole plugin, every format and its editor

  • 0 allocs

    on the audio thread, from 8 kHz to 384 kHz

  • 10

    pluginval strictness the templates pass as generated

Agentic

Agents that don't guess.

An agent fails on an unfamiliar C++ library by inventing a name that sounds right. Sonore hands it the real ones: install the skill and the MCP server for yours.

Install Skill & MCP

ChatGPT, Claude Code, Cursor, Antigravity and any MCP client

---
name: sonore-sdk
description: Writes, extends and debugs
  audio plugins on the Sonore SDK…

A skill for your agent

Claude Code, Codex, Cursor and Antigravity learn the workflow: look a name up before writing it, start from a generated project, run pluginval before calling it done.

› sonore_search ladder
LadderFilter   sonore/dsp.h
DiodeLadder    sonore/va_filters.h
› sonore_search CompressorPro
Nothing in the SDK matches "CompressorPro".

An MCP server

Six tools that answer from the headers. An empty search is a real answer, not a cue to invent a class that sounds right.

$ curl https://sonore.dev/llms-full.txt
# 270 headers · 726 public types

The whole API in one file

llms.txt is the map and llms-full.txt names every public type. Both are generated from the headers, so neither describes code that isn't there.

Install the skill and the MCP

Pick your agent. Every block copies in one click.

Terminal
# the SDK, which the MCP server reads
git clone https://github.com/SonorieAI/sonore-sdk "$HOME/sonore-sdk"
# the skill
npx skills add SonorieAI/sonore-sdk --skill sonore-sdk -a codex -g
# the MCP server
codex mcp add sonore-sdk -- node "$HOME/sonore-sdk/scripts/mcp-server.mjs"

The Codex CLI, the IDE extension and the ChatGPT desktop app share this setup.

Terminal
# the SDK, which the MCP server reads
git clone https://github.com/SonorieAI/sonore-sdk "$HOME/sonore-sdk"
# the skill
npx skills add SonorieAI/sonore-sdk --skill sonore-sdk -a claude-code -g
# the MCP server
claude mcp add --scope user sonore-sdk -- node "$HOME/sonore-sdk/scripts/mcp-server.mjs"

Run it once; every project on this machine gets the skill and the MCP.

Terminal
# the SDK, which the MCP server reads
git clone https://github.com/SonorieAI/sonore-sdk "$HOME/sonore-sdk"
# the skill
npx skills add SonorieAI/sonore-sdk --skill sonore-sdk -a cursor -g
~/.cursor/mcp.json
{
  "mcpServers": {
    "sonore-sdk": {
      "command": "node",
      "args": ["/path/to/sonore-sdk/scripts/mcp-server.mjs"]
    }
  }
}

Cursor adds servers from its config file: merge this in with the path to your clone, then restart Cursor.

Terminal
# the SDK, which the MCP server reads
git clone https://github.com/SonorieAI/sonore-sdk "$HOME/sonore-sdk"
# the skill
npx skills add SonorieAI/sonore-sdk --skill sonore-sdk -a antigravity -g
~/.gemini/config/mcp_config.json
{
  "mcpServers": {
    "sonore-sdk": {
      "command": "node",
      "args": ["/path/to/sonore-sdk/scripts/mcp-server.mjs"]
    }
  }
}

Or open … › MCP Servers › Manage MCP Servers › View raw config in the agent panel, and paste it there.

Terminal
# the SDK, which the MCP server reads
git clone https://github.com/SonorieAI/sonore-sdk "$HOME/sonore-sdk"
# the skill
npx skills add SonorieAI/sonore-sdk --skill sonore-sdk -g
Your client's MCP config
{
  "mcpServers": {
    "sonore-sdk": {
      "command": "node",
      "args": ["/path/to/sonore-sdk/scripts/mcp-server.mjs"]
    }
  }
}

The skills CLI asks which of your agents to install into. Most MCP clients take this JSON; without the CLI, copy skills/sonore-sdk into your agent's skills folder.

Showcase

Made with Sonore.

Sonorie's home page: a prompt that reads Describe an audio effect, above suggestions such as an 1176-style FET compressor

Sonorie

Describe an effect or a synth and hear it a minute later. Every plugin Sonorie generates is built on Sonore.

Examples in the repo

Complete projects to start from: plugins that build in every format, and a desktop app.

  • Saturator
  • Synth
  • Sampler
  • Convolution reverb
  • Sidechain ducker
  • Arpeggiator
  • Aux-out splitter
  • Trim
  • Native-editor showcase
  • Audio player app
$ cmake -S sdk -B sdk/build
$ cmake --build sdk/build --config Release
# SonoreSaturator.clap  vst3/SonoreSaturatorVST3.vst3
# SonoreSaturatorLV2.lv2  SonoreSaturatorApp

Built something?

Show it in the Discord. We'd like to put it here.

Licence

Free to ship.

Apache-2.0 with its patent grant. Put it in closed-source, commercial plugins; what you build on it is yours to license.

  • $0in fees, at any revenue
  • ©Our own code, from the DSP to the wrappers
  • 0copyleft code vendored in the repo

Formats have terms of their own: shipping VST3 commercially means Steinberg's agreement, AAX needs Avid's. Third-party notices

Start building.

Get the SDKRead the guide

Get started

From a generated project to a plugin in your DAW.

Guides

Parameters, presets, editors, MIDI, hosting and testing.

For coding agents

The skill, the MCP server and llms.txt, all generated from the headers.

Community

Questions, builds, and numbers that disagree with ours.