Cookbook - Eco Docs

Choose a guide for your integration or a Sauce example for a specific program pattern. Follow each page’s prerequisites and configuration steps before running its code.

Guides

Guide	Builds	Uses
Sending USDC across chains	A server-side transfer: signed quote, verification, funding transaction, status polling	Eco API v1
Cross-chain treasury rebalancing	A design for balance thresholds, transfer submission, and reconciliation	Eco API v1
Auto-route deposits to Solana	A Base USDC deposit address associated with a Solana recipient	Deposit & Payout
Gasless USDC into Circle Gateway	A deposit into a Gateway balance funded by an ERC-3009 signature, with no user gas	Deposit & Payout
Becoming an Eco solver	The two quote endpoints, registration, Portal event watching, fulfillment, withdrawal	Solver interface

Sauce programs

SauceScript examples from the compiler example set and the @eco-incorp/sauce package. See each page for its source, parameters, and limitations.

Program	What it does	Source
Best-pool swap	Quotes two Uniswap V3 pools and swaps through the better one, decided inside the block	Compiler example set
Liquidity-weighted order split	Splits an order across two pools by live liquidity and enforces a floor on the combined output	Compiler example set
Settle	Sweeps a Pot’s balance of listed tokens to one recipient with a minimum-output floor; EVM and SVM versions	`@eco-incorp/sauce/recipes`, `/svm/recipes`
CCTP split transfer	Moves USDC in `depositForBurn` calls capped per message, atomically in one cook, with the plain-transfer baseline	`@eco-incorp/sauce/recipes`
Conditional transfer and small programs	Conditional native transfer, arithmetic, a Uniswap factory lookup, an ERC-20-like transfer with storage and events, Fibonacci	Compiler docs and `dev-tools/sauce`

Agents

Artifact	What it does
`transfer.ts` reference script	Chains, quote, signature verification, funding-transaction verification, funding, status polling, from an EVM or Solana source chain. Linked from the `eco-api-v1` skill
Build with AI agents	Skills install, docs MCP server, starter prompt

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