Webhooks for Web3

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.

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Try HOST Interactive Demos

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

AI Alpha Scout

Trigger an AI research agent from the blockchain to discover crypto projects matching your risk profile.

AI Google Sheets Update

Log on-chain data directly to Google Sheets from your smart contract. Perfect for analytics and reporting.

Ntfy Alerts

Send push notifications to any device directly from your smart contract function.

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Try Protocol Smart Contract Demos

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

HOST
Agentic

Trigger AI agents from contracts

0x00..99
Trend
Analysis

OLS regression + volatility analysis

0x00..DC
RNG
Randomness

Protocol-level random numbers

0x00..FF
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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
Smart Contract
HOST
Precompile
AI Agent

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
HOSTTrigger AI agents
TrendStatistical analysis
RNGRandom number generation
ShuffleCryptographic card shuffle
CompoundInterestHigh-precision DeFi calculations
+ 7 more...

1490

Chain ID

5s

Block Time

4

Gwei Gas

EVM

Compatible