Build Verifiable,
Data-Rich
Onchain Applications.
Why Herodotus Cloud?
Herodotus Cloud gives smart contracts cryptographic access to onchain and cross-chain data, verifiable off-chain compute, and managed STARK proving. With Herodotus Cloud, you can:Security
Replace oracle trust with cryptographic verification. Proof-backed data and computed results can be verified, registered onchain, and consumed by smart contracts.Scalability
Move heavy compute off-chain and pay only for verification onchain. Cost stays predictable as data volume grows.Decentralization
Smart contracts verify data and compute onchain, with no oracle required.Web3 Integrations
APIs and SDKs that drop verifiable data and compute into smart contracts on Ethereum, Starknet, and supported L2s.Zero Knowledge Technology
Key Benefits of ZK Technology in Herodotus Cloud
Herodotus Cloud uses STARK proofs to make off-chain computation and cross-chain data verifiable onchain. Your smart contract receives a verified result, not a signed attestation, and validates it cryptographically.This means three things in practice. First, you replace oracle trust with mathematical verification: data is correct because the proof verifies, not because a signer says so. Second, you can run computations that would be too expensive onchain, then settle only the verification cost. Third, you can read state from other chains and from historical blocks without depending on a trusted data provider.
The result is verifiable infrastructure for smart contracts that need to do more than read their own chain's recent state.
Our Products
Alive
Storage Proofs
Turn source-chain state into proof-backed facts smart contracts can consume. Request account, storage, block, transaction, and receipt data across supported chains without relying on oracle responses.
Alive
Data Processor API
Run provable compute over authenticated onchain data. Use HDP to compute over historical or cross-chain state and make the resulting facts available onchain with cryptographic guarantees.
Alive
Atlantic
Managed STARK proving infrastructure for proof-backed applications. Generate traces, request proofs, batch jobs, and access StarkWare SHARP through Herodotus Cloud APIs and console workflows.
Projects
Projects: Your Building Blocks in Herodotus Cloud
A project is a workspace with its own API keys, credits, and members. Use one per app or environment. Credits pay for everything billable on the platform; add teammates and assign roles to share access.Trusted by
Key Benefits
Explore the Documentation
Browse API references, guides and examples across all Herodotus Cloud products.
AI Skills for Your Coding Tools
Install vendor-neutral AI skill playbooks for Cursor, Claude Code, Codex and more. Get accurate, hallucination-resistant guidance when building with Herodotus APIs.
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