Webhooks for Web3

1 min read Original article ↗

Smart contracts have always been silent. Vitruveo gives them a voice. The first EVM chain where contracts speak HTTP—no indexers, no polling, no middleware.

Start BuildingLearn More

Try HOST Interactive Demos

Smart contracts calling AI agents, sending notifications, and triggering real-world actions.

More Demos

Try Protocol Smart Contract Demos

Every EVM has precompiles (ecrecover, sha256, etc.). Vitruveo adds 12 more that give contracts capabilities no standard EVM offers.

More Demos

The Full Circle

Web2 → Web3 → Web2. Complete. Your app calls a contract, the contract speaks back.

Contracts That Speak

Smart contracts call your webhooks during transaction execution. No indexers. No polling. No middleware.

Provably Authentic

Every outbound call signed by the validator. Your webhook knows it came from the blockchain. Trust extended off-chain.

Built for AI

5-second blocks. On-chain events trigger agentic workflows instantly. A blockchain designed for the AI era.

HOST — Smart Contracts That Speak HTTP

The first protocol-level outbound trigger in any EVM chain. Contracts send data to your webhook during transaction execution. Signed by the validator. Provably authentic.

HOST Primer

Contract speaks → Webhook receives → Your app responds

12 Built-In Capabilities

Webhooks, passkeys, randomness, batching, Merkle proofs, trend analysis, and more—built directly into the protocol.

Explore PSCs

TrendStatistical analysis

RNGRandom number generation

ShuffleCryptographic card shuffle

CompoundInterestHigh-precision DeFi calculations