MCP Browser Kit

The OpenZeppelin Contracts Wizard MCP server transforms the interactive web experience of building secure, battle‑tested smart contracts into a programmable interface that AI assistants can call directly. By exposing the same component‑based selection logic used in the browser, the server lets a conversational agent prompt users for contract type, token standards, and optional features—such as burnable tokens or upgradeability—and then returns a fully‑formed source file ready for compilation. This eliminates the need for developers to manually navigate the wizard UI, streamlining the contract generation workflow within code editors, CI pipelines, or custom tooling.

At its core, the server offers a rich set of capabilities that mirror the wizard’s functionality. It accepts parameters for Solidity, Cairo, Stellar, and Stylus contracts, generating the corresponding code with OpenZeppelin’s audited libraries wired in. The API can be invoked through standard MCP calls, enabling agents to ask for a “non‑fungible ERC721 token with royalty support” or a “Cairo contract that uses the OpenZeppelin Cairo library for storage management.” The returned payload includes not only the source code but also build metadata, allowing downstream tools to compile and deploy without additional configuration. This tight integration ensures that contracts produced by AI assistants maintain the same security guarantees as those created manually.

Key features of the MCP server include:

• Language agnosticism: Support for multiple smart‑contract languages means a single agent can generate code across different ecosystems.
• Component customization: Users can toggle optional modules (e.g., pausable, burnable, upgradeable) through simple boolean flags.
• Programmatic API: The underlying TypeScript SDK exposes the same logic, enabling developers to embed contract generation into their own applications or scripts.
• Embedding support: The wizard can be embedded in custom UIs, allowing agents to launch a visual editor within a chat interface for iterative refinement.

Real‑world scenarios that benefit from this server are plentiful. A decentralized application (dApp) team can integrate the MCP into their development environment, letting a chatbot assist junior developers in drafting token contracts on demand. A security auditor might use the server to generate baseline contracts for automated compliance checks, ensuring that every new token inherits OpenZeppelin’s proven patterns. Additionally, continuous‑integration pipelines can invoke the MCP to regenerate contracts whenever dependency updates occur, guaranteeing that deployments always use the latest audited libraries.

By bridging the gap between human intent and secure contract code, the OpenZeppelin Contracts Wizard MCP server empowers AI assistants to become true development partners. Developers no longer need to translate specifications into wizard steps; instead, they can rely on the server’s declarative API to produce production‑ready contracts instantly, reducing errors, accelerating iteration, and upholding the high security standards that OpenZeppelin is known for.