Certora has launched AI Composer, an open-source platform combining AI generation with formal verification to ensure smart contracts are safe before execution. The tool aims to make autonomous coding secure by default as it rolls out on Dec. 4.

Certora, a formal verification company widely used by major DeFi protocols, has launched AI Composer, an open‑source AI coding platform designed to generate smart contracts that are mathematically checked for safety before they ever run on-chain. The alpha version of AI Composer is being released under the MIT license and is going live on GitHub on December 4, 2025, positioned as “the first safe AI coding platform for smart contracts” because it tightly couples large language model (LLM) code generation with Certora’s formal verification engine. The tool currently targets Solidity workflows and is presented as “mostly automated code synthesis” where the AI repeatedly refines implementations until they satisfy user‑defined specifications and pass formal proofs. AI Composer works by embedding the Certora Prover—the same verification technology Certora uses to secure protocols like Compound and Lido—directly into the AI generation loop. Developers supply specifications and constraints, the LLM proposes contract code, and the prover automatically checks that critical invariants and safety rules hold; if the prover finds a bug, the system iterates, adjusting the code until a formally verified implementation is reached. Certora frames this as a response to the risk that generic “AI-for-code” tools can introduce subtle vulnerabilities in DeFi and other adversarial environments, aiming instead for “trustworthy by default” autonomous coding where speed gains from AI do not come at the expense of correctness. Strategically, the release signals a push to establish a new standard for verified AI-driven development in Web3, at a time when AI-assisted coding is rapidly proliferating but on-chain exploits remain costly. By open‑sourcing the alpha and developing it publicly on GitHub, Certora is inviting the security and developer community to extend the platform with new safety modules, testing integrations (such as Foundry), and broader language or framework support. If widely adopted, this approach could shift best practices around smart contract development from post‑hoc audits to continuous, specification‑driven verification tightly integrated with AI tooling. "entities":["Certora","Certora AI Composer","Certora Prover","Mooly Sagiv","John Toman","Compound","Lido","GitHub","Solidity"]}`

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