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@tokemak/sdk-core

v0.3.0

Published

Shared runtime for Tokemak product SDKs (`@tokemak/autopools`, future product packages). viem + fetch only — no wagmi, no React, no API keys.

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Readme

@tokemak/sdk-core

Shared runtime for Tokemak product SDKs (@tokemak/autopools, future product packages). viem + fetch only — no wagmi, no React, no API keys.

You usually don't install this directly; product packages depend on it and re-export what you need. It owns:

  • Errors — every SDK function either returns valid data or throws a TokemakSdkError subclass (UnsupportedChainError, ApiError, PriceUnavailableError, DepositsDisabledError, …) with a machine-readable code. An outage never looks like an empty result.
  • Prices — getTokenPrices(client, { tokens }) → USD prices keyed by lowercased address, DeFiLlama fallback, unpriceable tokens reported in missing (never silently 0).
  • Client factory — createTokemakClient({ chainId, rpcUrl? }). Omitting rpcUrl uses the viem chain's default public RPC: fine for trying things out, bring your own RPC for production.
  • Transaction primitives — PreparedTransaction (unsigned { chainId, to, data, value, from? }), sendTransaction / simulateTransaction helpers, signErc2612Permit, applySlippageBps (basis points everywhere), txDeadline, and the ERC-8021 builder-code suffix (appendBuilderCode) so SDK-built transactions carry the same on-chain attribution as the Tokemak dapp (plain ERC-20 approve legs are the one exception — they stay exactly 68 bytes because Ledger's Ethereum app < 1.20.0 rejects longer approve calldata).
  • Endpoints — Tokemak's public keyless HTTP endpoints as an overridable DEFAULT_ENDPOINTS object.

Design rules (see .claude/rules/product-packages.md): product packages never import each other; this package never imports product packages; something lives here only once a second product needs it.