AssetFare Route Quotes

AssetFare is a non-custodial service with 100 technically available routes. Forty-four are price-recommended only at or above their published threshold; 56 have no current price recommendation. Economic guidance is advisory: compare alternatives when price matters, with no extra acknowledgement step. Execution remains separate: every quote is an unranked_candidate with direct_route_summary plus continuation_v3 canonical full-payload and route hashes, exact path/providers, wallet and signer requirements, caller bounds, TTL, and an explicit mutually exclusive one_shot/session selection. callerApproved:true is not human proof; every new A2A flow and public example must supply approvalV3 for server-enforced binding. AssetFare never auto-selects, auto-creates approval, signs, or submits.

Skills

• Quote a cross-chain route
  Return one fresh unranked_candidate quote with amount-specific guidance, total token-path cost, direct_route_summary, strict continuation_v3 binding, and route-exact unsigned prepare requirements. price_recommended_for_amount is advisory; compare alternatives when price matters, but no economic acknowledgement field is required. It does not inspect balances, react automatically to a 402, or auto-select or auto-prepare. Execution remains separate: the caller must supply approvalV3 for exactly one mode. Read-only; never prepares, signs, or submits.
  native-usdcsolana-usdcbase-usdcunsigned-transaction-plancaller-signedagent-wallet-fundingpayment-wallet-fundingx402-wallet-fundingcross-chainbridgeswapcryptoquotesolanabasearbitrumrobinhoodpolygonoptimismnon-custodial
• Prepare the first unsigned action (caller-approved)
  Explicit one-shot POST /v2/prepare. The caller supplies approvalV3 selected_mode=one_shot and the exact hash-bound verificationContext. The adapter validates context before upstream, deeply verifies the returned EVM/Solana action and caller bounds, then emits a self-verifying caller-wallet handoff. Multi-step quotes reject one-shot. callerApproved must be supplied explicitly and is not human proof. Never auto-called; AssetFare never signs or submits.
  prepareunsigned-actioncross-chainnon-custodialcaller-approved
• Run the caller-approved session lifecycle
  Full quote-bound receipt-driven session lifecycle. Every A2A session call requires the caller-held hash-bound verificationContext; the adapter validates it before any upstream call, deeply verifies every current EVM/Solana action, and returns a fresh self-verifying caller-wallet handoff. Session create also requires approvalV3 selected_mode=session and the same idempotencyKey. The caller locally generates the sessionToken and never exposes its raw value in logs. callerApproved is explicit but not human proof. Never auto-chains, signs, or submits.
  sessionlifecycleobservereceiptsnon-custodialcaller-approved

How to call

https://api.assetfare.dev/a2a

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