The universal blockchain data toolkit

Decode once.
Build everywhere.

Four composable crates. One API for 7 architectures and 500+ networks.

chaincodec decodes events. chainrpc handles transport. chainindex stores history. chainerrors translates reverts. Works on Ethereum, Solana, Cosmos, Polkadot, Bitcoin, Aptos, and Sui.

chaincodec· Decodechainrpc· Transportchainindex· Indexchainerrors· Diagnosechaincorrelate· Correlate · v2

Get started Book a call View on GitHub

cargo add chaincodec chainrpc chainindexnpm i @chainfoundry/chaincodecpip install chaincodec

rust

▍

Decode · Transport · Index · DiagnoseLive on crates.io · npm · PyPI

The problem

7 languages. Zero translators.

Blockchains don't agree on anything. Each architecture speaks its own binary dialect — and until today, you had to learn every one from scratch.

Ethereum

ABI

Solana

Borsh

Cosmos

Protobuf

Polkadot

SCALE

Bitcoin

Script

Aptos

Move

Sui

Move-obj

One output

ChainFoundry

Unified structured events, balances, transactions, and correlations — across every supported architecture.

decodedtypedcanonical

Ethereum uses ABI encoding. Solana uses Borsh. Cosmos uses Protobuf. Substrate uses SCALE. Bitcoin uses Script. Aptos and Sui use Move — but in incompatible ways. Today, building anything multichain means learning each system from scratch, maintaining separate codebases, and hoping nothing breaks when one chain upgrades.

ChainFoundry fixes this. One toolkit. Every architecture. Every language you already use.

What it does

Four shipped primitives. One on the roadmap.

Every crate below is either live on crates.io · npm · PyPI, or clearly flagged as planned. No vapourware.

Decode

chaincodec

Shippedv0.1.2 · crates.io · npm · PyPI

Universal ABI decoder. 50+ bundled protocol schemas. EVM events + calls, Solana Anchor IDL, Cosmos Protobuf. Parallel batch decode with Rayon.

See decode examples

Transport

chainrpc

Shippedv0.1.1 · crates.io · npm · PyPI

Production RPC middleware for all 7 architectures. Circuit breaker, 4-tier cache, CU-aware rate limiter, MEV protection, 5 failover strategies, dedup, batching.

See transport examples

Index

chainindex

Shippedv0.1.1 · crates.io · npm · PyPI

Reorg-safe blockchain indexer as a library — not a SaaS. Pluggable storage (SQLite, Postgres, RocksDB). Embed it in your own binary. You own the data.

See indexer examples

Diagnose

chainerrors

Shippedv0.1.0 · crates.io · npm · PyPI

Decode Solidity reverts, panics, custom errors, and Solana program failures from raw bytes. Turns 0x08c379a0… into a human-readable reason.

Why your agent needs this

Correlate

chaincorrelate

PlannedPlanned — not yet published

Cross-chain event correlation. Trace a bridge deposit on Ethereum to its withdrawal on Solana. Build chain-hop graphs across heterogeneous architectures.

See the v2 roadmap

Code in any language

3 lines to decode. Any chain. Any language.

Same API surface across Rust, TypeScript, Python, Go, Java, and WASM. Bring your stack — we'll match it.

rust

use chaincodec_evm::EvmDecoder;

let decoder = EvmDecoder::new();
let event = decoder.decode_event(&log, &schema)?;
println!(
    class="tok-s">"Transfer: {} → {} ({})",
    event.fields[class="tok-s">"from"],
    event.fields[class="tok-s">"to"],
    event.fields[class="tok-s">"value"],
);

Who builds with ChainFoundry

Built for builders. At every scale.

AI agent builders

Your agents need to read the blockchain. ChainFoundry's MCP server gives them decoded, structured data from 500+ networks — self-hosted, no API keys, no vendor lock-in.

See AI agent use case

Compliance & forensics teams

Trace funds across bridges. Decode transactions across chains. Build audit trails. Open-source cross-chain correlation — without paying $100K/yr for Chainalysis.

See compliance use case

Multichain dApp developers

Add a new chain to your app in hours, not weeks. One import, one API. Wallet, DEX aggregator, portfolio tracker, bridge UI — all work across every architecture.

See developer use case

Blockchain ecosystems

Better developer tooling = more developers = more apps = more users. Support ChainFoundry through grants or partnerships and get your chain supported out of the box.

See ecosystem use case

The numbers — verifiable

What's actually published.

Every figure below matches the chainkit monorepo and the live crates.io · npm · PyPI entries.

shipped crates

codec · rpc · index · errors

architectures

in chainrpc + chainindex

500+

networks

EVM alone covers 200+

50+

protocol schemas

Uniswap · Aave · Lido · …

language bindings

Rust core + TS · Py · Go · Java · WASM

MIT

license

open-source core

Published on crates.io · npm · PyPI · MIT Licensed

Coverage — honest status

7 architectures, per-module status.

chainrpc and chainindex already ship on all 7 architectures. Decode support (chaincodec, chainerrors) is live on EVM / Solana / Cosmos and expanding — we only claim what's published to crates.io.

Architecture	Networks	Encoding	chaincodec	chainrpc	chainindex	chainerrors
EVM Ethereum, Polygon, Arbitrum, Base, BSC, zkSync, 200+ ABI / Solidity	Ethereum, Polygon, Arbitrum, Base, BSC, zkSync, 200+	ABI / Solidity	Shipped	Shipped	Shipped	Shipped
Solana (SVM) Solana, Eclipse Borsh / Anchor IDL	Solana, Eclipse	Borsh / Anchor IDL	Shipped	Shipped	Shipped	Shipped
Cosmos Cosmos Hub, Osmosis, dYdX, Sei, 50+ Protobuf / IBC	Cosmos Hub, Osmosis, dYdX, Sei, 50+	Protobuf / IBC	Shipped	Shipped	Shipped	Planned
Substrate Polkadot, Kusama, 100+ parachains SCALE codec	Polkadot, Kusama, 100+ parachains	SCALE codec	Planned	Shipped	Shipped	Planned
Bitcoin Bitcoin, Lightning, Ordinals, BRC-20 Script / UTXO	Bitcoin, Lightning, Ordinals, BRC-20	Script / UTXO	Planned	Shipped	Shipped
Aptos Aptos mainnet Move bytecode	Aptos mainnet	Move bytecode	Planned	Shipped	Shipped	Planned
Sui Sui mainnet Move (object model)	Sui mainnet	Move (object model)	Planned	Shipped	Shipped	Planned

Shipped on crates.ioPlanned / roadmapNot applicableSource of truth: github.com/DarshanKumar89/chainkit

A 5th module, chaincorrelate (cross-chain event correlation), is on the v2 roadmap — not yet published. +13 additional chains (Starknet, NEAR, TON, Tron, Cardano…) are planned via the pluggable ChainAdapter trait.

Open source

MIT licensed. Built in the open.

ChainFoundry's core SDK is fully open-source under the MIT license. 197 features are free forever. Enterprise cloud and managed services are coming for teams that need hosted infrastructure.

View on GitHub

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