Blog

Notes from the foundry.

Engineering deep-dives, ecosystem theses, and architectural choices. Every post ties to something already shipped on crates.io — or clearly labelled as draft.

Featured · Engineering9 min·Apr 2026

L1 and L2 — the multichain data problem you thought you'd already solved

You shipped on Ethereum. Then Base, Arbitrum, Optimism, zkSync. Same architecture, same ABI — different finality, different reorg depths, different CU costs. Why 'just deploy the same contracts' is not a data strategy.

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3 posts. More every 2–3 weeks.

#02Ecosystem10 min

The Sui ecosystem playbook — why Move teams need multichain from day one

Sui has great developer ergonomics and a genuinely different execution model. It also has a tooling gap that costs every team going live a month of integration work. Here's how we close it.

Apr 2026Read

#03Thesis11 min

Sui gets instant distribution to every multichain team

If a team building on Ethereum + Solana wants to add Sui today, it's 2–4 months of work. With ChainFoundry, it's 20 lines. That is a distribution win for the Sui Foundation — and BTCFi on Sui is the first obvious dividend.

Apr 2026Read

Editorial roadmap

What we're writing next.

These are drafts — not published yet. Every topic is tied to something already shipped in the chainkit repo, so the writing stays technical.

Get notified as they land

#04Origin8 min
Why we built ChainFoundry
Seven incompatible architectures, no universal toolkit. The USB-C analogy. What we've shipped on crates.io, and what's next.
Draft · not yet published
#05Deep dive12 min
7 architectures, not 7 chains — why chain count is a misleading metric
Ethereum vs. its 200+ EVM forks. Why SubQuery's “300 chains” and ChainFoundry's “7 families” are comparable numbers.
Draft · not yet published
#06Engineering10 min
Building an MCP server for blockchain data
Dual-mode (Rust PyO3 + Python fallback). Claude Desktop and Cursor integration. Tool schema design for multichain agents.
Draft · not yet published
#07Architecture9 min
CSDL — a portable schema format for blockchain events
Why The Graph's subgraph manifests and Envio's configs are framework-locked. How CSDL works. How to contribute schemas.
Draft · not yet published
#08Engineering7 min
0x08c379a0 — turning revert bytes into readable errors
How chainerrors decodes Solidity reverts, panics, custom errors, and Solana program failures — and why your AI agent needs it.
Draft · not yet published