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7 Services from chain-tools.use.x402atlas.com

chain-tools.use.x402atlas.comSolidity ABI Calldata Decoderx402

Decodes canonical EVM smart-contract function call data or typed ABI values, verifies selectors, and rejects ambiguous offsets or padding.

$0.005/messagechain-tools.use.x402atlas.comSolana PDA Calculatorx402

Derives the canonical Program Derived Address (PDA) and bump seed for a given Solana program and set of seeds, entirely offline without RPC or key handling.

$0.005/messagechain-tools.use.x402atlas.comSolidity ABI Calldata Encoderx402

Encodes canonical typed values into EVM smart-contract ABI calldata, optionally including a 4-byte function selector and exact 256-bit integers.

$0.005/messagechain-tools.use.x402atlas.comCREATE2 Deterministic Contract Address Calculatorx402

Derives the EIP-1014 CREATE2 deployment address, preimage, hashes, and EIP-55 checksum for an EVM contract without requiring an RPC connection.

$0.005/messagechain-tools.use.x402atlas.comAtlas Keccak Merkle Proof Verifierx402

Validates Keccak Merkle inclusion proofs against the Atlas sorted-pair tree profile, verifying leaf index, leaf count, and proof shape.

$0.005/messagechain-tools.use.x402atlas.comKeccak Merkle Tree and Proof Builderx402

Builds a Keccak-based Merkle tree from a list of leaves and returns indexed sorted-pair inclusion proofs with domain separation and odd-node promotion.

$0.01/messagechain-tools.use.x402atlas.comEVM Address Checksum & Validation Toolx402

Normalizes an Ethereum-compatible address to its EIP-55 mixed-case checksum form and validates whether a given address passes checksum verification, entirely offline.

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