Event-Driven Smart Contracts

Without running an oracle network. Turn off-chain events from any API into cryptographically verified on-chain actions on Base and EVM chains.

What This Is

A developer-first event bridge that converts off-chain events into on-chain attestations your smart contracts can trust.

No oracle networks

Skip the complexity of distributed consensus.

No wallets for users

Sponsored gas means seamless UX.

No consensus overhead

Events → signatures → execution.

How It Works

🌐
Off-chain Event
API webhook, SaaS trigger, or internal event
Verified
Backend validates authenticity & payload
🔐
Signed
Oracle signs deterministic payload
⛓️
Submitted
Relayer posts signed payload (gas paid)
Executed
Contract verifies & executes exactly once

No Wallets

Gas is sponsored. Users never touch ETH or sign transactions.

Cryptographic Proof

ECDSA signatures verify authenticity. Contracts trust math, not callers.

Exactly Once

Replay protection + idempotency guarantee each event processes exactly once.

Low Latency

Events delivered on-chain in seconds with event-driven architecture.

Core Features

Everything you need to bridge events securely and reliably.

🔗

Event Bridging

Trigger smart contracts from any off-chain event—Stripe payments, GitHub actions, internal APIs.

🔐

Cryptographic Attestations

ECDSA-verified signatures prove event authenticity. Contracts verify attestations, not callers.

Sponsored Gas

We pay transaction costs. No wallets, no ETH, no UX friction for your users.

🔁

Replay Protection

Every event processes exactly once with on-chain and off-chain idempotency safeguards.

Low Latency

Events delivered on-chain in seconds with event-driven architecture optimized for speed.

🧩

Simple Interface

One contract call with a signed payload—no oracle jobs, feeds, or complex config.

How We Compare

FeatureDIYChainlinkEventConduit
Web2 → Web3 bridging⚠️
Cryptographic verification⚠️
User-specific data⚠️
Sponsored gas
Oracle network required
Setup complexity
Cost predictability⚠️

Common Use Cases

See how EventConduit powers real products.

Most Common

API → Smart Contract Triggers

Trigger on-chain logic when an off-chain API event occurs.

• Unlock contract features after API response

• Trigger workflows from SaaS systems

• Move funds based on external state

On-Chain Access Control

Grant or revoke permissions based on off-chain state.

• Token-gated access based on API checks

• Role assignment driven by identity

• Feature flags from backend systems

User-Specific Data Attestations

Prove something about one specific user on-chain.

• "This wallet owns X account"

• "This user passed KYC"

• "Account meets eligibility criteria"

One-Time Proofs & Claims

Issue an on-chain proof that something happened exactly once.

• Claim eligibility

• Reward issuance

• NFT mint authorization

• Airdrop qualification

Sponsored Transactions

Execute contracts without users needing ETH.

• Web2-like onboarding flows

• No-wallet experiences

• Enterprise custody systems

Hybrid Web2 / Web3 Apps

Coordinate logic across backend and blockchain.

• Backend validates → chain executes

• Backend enforces rules → chain settles

• Cross-system consistency

Build with real-world events

Not infrastructure headaches.