Show JSON
{
"protocolVersion": "1.0",
"name": "AssetFare Route Quotes",
"description": "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.",
"author": "AssetFare",
"wellKnownURI": "https://api.assetfare.dev/.well-known/agent-card.json",
"url": "https://api.assetfare.dev/a2a",
"version": "1.7.0",
"provider": {
"organization": "AssetFare",
"url": "https://assetfare.dev/"
},
"documentationUrl": "https://assetfare.dev/llms-full.txt",
"iconUrl": null,
"supportsAuthenticatedExtendedCard": false,
"security": [],
"securitySchemes": {},
"capabilities": {
"streaming": false,
"pushNotifications": false,
"stateTransitionHistory": false,
"extensions": []
},
"defaultInputModes": [
"application/json"
],
"defaultOutputModes": [
"application/json"
],
"skills": [
{
"id": "quote-cross-chain-route",
"name": "Quote a cross-chain route",
"description": "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.",
"tags": [
"native-usdc",
"solana-usdc",
"base-usdc",
"unsigned-transaction-plan",
"caller-signed",
"agent-wallet-funding",
"payment-wallet-funding",
"x402-wallet-funding",
"cross-chain",
"bridge",
"swap",
"crypto",
"quote",
"solana",
"base",
"arbitrum",
"robinhood",
"polygon",
"optimism",
"non-custodial"
],
"examples": [
"{\"fromChain\":\"solana\",\"fromToken\":\"USDC\",\"toChain\":\"base\",\"toToken\":\"USDC\",\"amountUsd\":1000}",
"{\"fromChain\":\"solana\",\"fromToken\":\"SOL\",\"toChain\":\"base\",\"toToken\":\"USDC\",\"amountUsd\":1000}",
"{\"fromChain\":\"optimism\",\"fromToken\":\"USDC\",\"toChain\":\"base\",\"toToken\":\"USDC\",\"amountUsd\":1000}"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "prepare-first-unsigned-action",
"name": "Prepare the first unsigned action (caller-approved)",
"description": "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.",
"tags": [
"prepare",
"unsigned-action",
"cross-chain",
"non-custodial",
"caller-approved"
],
"examples": [
"{\"operation\":\"prepare\",\"callerApproved\":true,\"fromChain\":\"arbitrum\",\"fromToken\":\"ETH\",\"toChain\":\"arbitrum\",\"toToken\":\"USDC\",\"amountUsd\":2500,\"wallets\":{\"arbitrum\":\"0x2222222222222222222222222222222222222222\"},\"approvalV3\":{\"version\":\"assetfare-quote-bound-approval-v3\",\"quote_id\":\"<COPY_FROM_QUOTE>\",\"quote_fingerprint\":\"<COPY_64_HEX_FROM_QUOTE>\",\"selection_status\":\"selected\",\"selected_mode\":\"one_shot\",\"maximum_input_base\":\"<COPY_OR_STRENGTHEN_QUOTE_MAXIMUM>\",\"minimum_output_base\":\"<COPY_OR_STRENGTHEN_QUOTE_MINIMUM>\",\"direct_route_summary_sha256\":\"<COPY_64_HEX_FROM_QUOTE>\",\"idempotency_key\":\"prepare-0001\"},\"verificationContext\":{\"version\":\"assetfare-one-shot-verification-context-v1\",\"intent\":\"<COPY_EXACT_INTENT_OBJECT>\",\"wallets\":\"<COPY_PUBLIC_WALLET_MAP>\",\"event_signer_public\":null,\"approval_v3\":\"<COPY_EXACT_APPROVAL_V3_OBJECT>\",\"direct_route_summary\":\"<COPY_EXACT_DIRECT_ROUTE_SUMMARY_OBJECT>\",\"verification_context_sha256\":\"<RECOMPUTE_64_HEX>\"}}"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "session-lifecycle",
"name": "Run the caller-approved session lifecycle",
"description": "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.",
"tags": [
"session",
"lifecycle",
"observe",
"receipts",
"non-custodial",
"caller-approved"
],
"examples": [
"{\"operation\":\"session_create\",\"callerApproved\":true,\"fromChain\":\"arbitrum\",\"fromToken\":\"ETH\",\"toChain\":\"arbitrum\",\"toToken\":\"USDC\",\"amountUsd\":2500,\"wallets\":{\"arbitrum\":\"0x2222222222222222222222222222222222222222\"},\"sessionToken\":\"<CALLER_GENERATED_43_CHAR_BASE64URL_CAPABILITY>\",\"idempotencyKey\":\"create-0001\",\"approvalV3\":{\"version\":\"assetfare-quote-bound-approval-v3\",\"quote_id\":\"<COPY_FROM_QUOTE>\",\"quote_fingerprint\":\"<COPY_64_HEX_FROM_QUOTE>\",\"selection_status\":\"selected\",\"selected_mode\":\"session\",\"maximum_input_base\":\"<COPY_OR_STRENGTHEN_QUOTE_MAXIMUM>\",\"minimum_output_base\":\"<COPY_OR_STRENGTHEN_QUOTE_MINIMUM>\",\"direct_route_summary_sha256\":\"<COPY_64_HEX_FROM_QUOTE>\",\"idempotency_key\":\"create-0001\"},\"verificationContext\":{\"version\":\"assetfare-session-verification-context-v1\",\"intent\":\"<COPY_EXACT_INTENT_OBJECT>\",\"wallets\":\"<COPY_PUBLIC_WALLET_MAP>\",\"event_signer_public\":null,\"approval_v3\":\"<COPY_EXACT_APPROVAL_V3_OBJECT>\",\"direct_route_summary\":\"<COPY_EXACT_DIRECT_ROUTE_SUMMARY_OBJECT>\",\"verification_context_sha256\":\"<RECOMPUTE_64_HEX>\"}}",
"{\"operation\":\"observe_source\",\"sessionId\":\"00000000-0000-4000-8000-000000000001\",\"sessionToken\":\"<capability>\",\"idempotencyKey\":\"src-0001\",\"transactionHashes\":[\"<caller-submitted-hash>\"],\"verificationContext\":\"<SAME_HASHED_CONTEXT_USED_AT_CREATE>\"}"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
}
],
"conformance": true,
"conformance_errors": null,
"homepage": null,
"repository": null,
"license": null,
"pricing": null,
"contact": null,
"id": "d4f9ab1a-904c-4227-8fc6-548e45749de1",
"category": "crypto-web3",
"category_secondary": null
}