Code and build applications
The code agent can read the repository, propose a plan, show diffs/commands, and run actions permitted by approval mode.
With a specific offerAssistant · Océanie
Matilda
Matilda is Maincode’s assistant, with web/mobile chat, a coding agent for terminal and desktop use, and a developer API. For coding work, it reads the relevant repository, proposes a visible plan and changes, and can run commands or tests permitted by the selected approval mode.
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In a few words
Matilda is Maincode’s assistant, with web/mobile chat, a coding agent for terminal and desktop use, and a developer API. For coding work, it reads the relevant repository, proposes a visible plan and changes, and can run commands or tests permitted by the selected approval mode.
For developers and engineering teams working in a software repository through terminal, Desktop, or API; Matilda is also presented as a web/mobile chat.
What you can do with it
Automate tasks
The CLI accepts one-off prompts, scripts, and pipelines, with explicit approval mode for non-interactive contexts.
With developmentCreate your own agent
The TypeScript and Python SDKs document defining named agents in code.
With developmentConcrete examples
Prepare a change
In this repository, propose a plan and a diff to add validation for this input.
Repository reading, planning, and visible changes are documented; execution depends on the chosen approval mode.
Example based on a documented featureVerify a change
After the approved change, run permitted tests and summarise the result.
Running tests or a build after approved actions is documented; review commands and results.
Example based on a documented featureAccess and terms
FR — La tarification Matilda n’est pas publiée dans les sources officielles examinées. Une beta gratuite, limitée et pré-lancement ainsi qu’une beta Desktop gratuite sont documentées; des plans mensuels et annuels existent, sans montant public vérifié. EN — Matilda pricing is not published in the official sources reviewed. A free, limited pre-launch beta and a free Desktop beta are documented; monthly and annual plans exist, without a verified public amount.
Free plans, trials and paid APIs are separate. Always check the exact offer.
What you can send and get
Matilda Code reads relevant repository files and shows plans, diffs, and commands. CLI text, json, and stream-json outputs are documented; do not infer unpublished document formats.
Agents and automation
The code agent acts during a session and stops according to the Core concepts documentation. Developers can define a reusable Agent through the SDK; multi-agent work is composed in code, not by an integrated orchestrator.
Go deeper
FR — Le CLI demande Node.js 22+; le SDK agent TypeScript demande Node.js 20+. Les sorties CLI documentées sont text, json et stream-json; le SDK/API peut imposer une sortie JSON Schema. Les SDK TypeScript et Python permettent de définir des agents nommés dans du code, mais aucun constructeur visuel no-code ouvert à tous n’est établi. Les formats de fichiers API ne sont pas publiés au-delà d’un exemple .txt/text/plain. EN — The CLI requires Node.js 22+; the TypeScript agent SDK requires Node.js 20+. Documented CLI outputs are text, json, and stream-json; the SDK/API can constrain JSON Schema output. TypeScript and Python SDKs let developers define named agents in code, but no open no-code visual builder is established. API file formats are not published beyond a .txt/text/plain example.
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Sources and update
Official Maincode site, beta, Matilda Chat/Code, API, SDK, and terms sources checked on 13 September 2026. Actual access can change.