{ "x402Version": 2, "id": 7489, "slug": "7489", "resource": "https://api.usesaferoute.com/v1/swap-safety-check", "description": "Check whether an approved Base token swap is eligible before supplying a wallet. Returns verified token contracts, indicative output, liquidity sources, fee estimate, warnings, and the exact next action. No custody, signing, or execution.", "type": "http", "accepts": [ { "scheme": "exact", "network": "eip155:8453", "payTo": "0x08a6a2ddecdebdbfcb29d725042a6f3d74849e08", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "1000", "maxTimeoutSeconds": 300 } ], "outputSchema": { "bazaar": { "info": { "input": { "body": { "amount": "25", "from": "USDC", "intentId": "intent_unique_1234567890", "sourceAgentId": "buyer-agent-id", "to": "WETH" }, "bodyType": "json", "method": "POST", "type": "http" }, "output": { "example": { "allowance": { "status": "wallet_required_for_check" }, "amount": { "human": "25", "raw": "25000000", "usdcEquivalentRaw": "25000000" }, "chainId": 8453, "checkId": "00000000-0000-4000-8000-000000000000", "createdAt": "2026-01-01T00:00:00.000Z", "estimatedOutput": { "raw": "10000000000000000" }, "expectedSafeRouteFee": { "amountRaw": "12500", "bps": 10, "indicative": true, "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913" }, "expiresAt": "2026-01-01T00:01:00.000Z", "liquidity": { "available": true, "sources": [ "Uniswap_V3" ] }, "nextAction": { "endpoint": "https://api.usesaferoute.com/v1/quote", "method": "POST", "price": "$0.01", "requiredAdditionalField": "wallet" }, "pair": { "buyToken": "0x4200000000000000000000000000000000000006", "from": "USDC", "sellToken": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "to": "WETH" }, "priceImpact": { "status": "checked_on_full_quote", "warning": "Price impact is calculated on the full wallet-bound quote." }, "status": "eligible", "tokenVerification": { "buyTokenApproved": true, "buyTokenDecimals": 18, "sellTokenApproved": true, "sellTokenDecimals": 6 }, "warnings": [ "Indicative preflight only; output and route are refreshed before a full quote." ] }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "body": { "additionalProperties": false, "properties": { "amount": { "description": "Human-readable sell amount, capped at $500 USDC equivalent", "pattern": "^\\d+(?:\\.\\d+)?$", "type": "string" }, "from": { "description": "Approved Base sell-token symbol", "enum": [ "USDC", "WETH", "EURC", "CBETH", "CBBTC", "VIRTUAL", "AERO" ], "type": "string" }, "intentId": { "maxLength": 128, "minLength": 16, "pattern": "^[a-zA-Z0-9_-]+$", "type": "string" }, "referralCode": { "maxLength": 64, "minLength": 3, "pattern": "^[a-zA-Z0-9_-]+$", "type": "string" }, "sourceAgentId": { "maxLength": 128, "minLength": 1, "type": "string" }, "to": { "description": "Approved Base buy-token symbol; must differ from from", "enum": [ "USDC", "WETH", "EURC", "CBETH", "CBBTC", "VIRTUAL", "AERO" ], "type": "string" } }, "required": [ "from", "to", "amount" ], "type": "object" }, "bodyType": { "enum": [ "json", "form-data", "text" ], "type": "string" }, "method": { "enum": [ "POST" ], "type": "string" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method", "bodyType", "body" ], "type": "object" }, "output": { "properties": { "example": { "properties": { "allowance": { "properties": { "status": { "const": "wallet_required_for_check", "type": "string" } }, "required": [ "status" ], "type": "object" }, "amount": { "properties": { "human": { "type": "string" }, "raw": { "pattern": "^\\d+$", "type": "string" }, "usdcEquivalentRaw": { "pattern": "^\\d+$", "type": "string" } }, "required": [ "human", "raw", "usdcEquivalentRaw" ], "type": "object" }, "attribution": { "additionalProperties": false, "properties": { "intentId": { "maxLength": 128, "minLength": 16, "pattern": "^[a-zA-Z0-9_-]+$", "type": "string" }, "referralCode": { "maxLength": 64, "minLength": 3, "pattern": "^[a-zA-Z0-9_-]+$", "type": "string" }, "sourceAgentId": { "maxLength": 128, "minLength": 1, "type": "string" } }, "type": "object" }, "chainId": { "const": 8453, "type": "integer" }, "checkId": { "format": "uuid", "type": "string" }, "createdAt": { "format": "date-time", "type": "string" }, "estimatedOutput": { "properties": { "minimumRaw": { "pattern": "^\\d+$", "type": "string" }, "raw": { "pattern": "^\\d+$", "type": "string" } }, "required": [ "raw" ], "type": "object" }, "expectedSafeRouteFee": { "properties": { "amountRaw": { "pattern": "^\\d+$", "type": "string" }, "bps": { "const": 10, "type": "integer" }, "indicative": { "const": true, "type": "boolean" }, "token": { "pattern": "^0x[a-fA-F0-9]{40}$", "type": "string" } }, "required": [ "bps", "amountRaw", "token", "indicative" ], "type": "object" }, "expiresAt": { "format": "date-time", "type": "string" }, "liquidity": { "properties": { "available": { "const": true, "type": "boolean" }, "sources": { "items": { "type": "string" }, "type": "array" } }, "required": [ "available", "sources" ], "type": "object" }, "nextAction": { "properties": { "endpoint": { "format": "uri", "type": "string" }, "method": { "const": "POST", "type": "string" }, "price": { "const": "$0.01", "type": "string" }, "requiredAdditionalField": { "const": "wallet", "type": "string" } }, "required": [ "method", "endpoint", "price", "requiredAdditionalField" ], "type": "object" }, "pair": { "properties": { "buyToken": { "pattern": "^0x[a-fA-F0-9]{40}$", "type": "string" }, "from": { "enum": [ "USDC", "WETH", "EURC", "CBETH", "CBBTC", "VIRTUAL", "AERO" ], "type": "string" }, "sellToken": { "pattern": "^0x[a-fA-F0-9]{40}$", "type": "string" }, "to": { "enum": [ "USDC", "WETH", "EURC", "CBETH", "CBBTC", "VIRTUAL", "AERO" ], "type": "string" } }, "required": [ "from", "to", "sellToken", "buyToken" ], "type": "object" }, "priceImpact": { "properties": { "status": { "const": "checked_on_full_quote", "type": "string" }, "warning": { "type": "string" } }, "required": [ "status", "warning" ], "type": "object" }, "status": { "const": "eligible", "type": "string" }, "tokenVerification": { "properties": { "buyTokenApproved": { "const": true, "type": "boolean" }, "buyTokenDecimals": { "minimum": 0, "type": "integer" }, "sellTokenApproved": { "const": true, "type": "boolean" }, "sellTokenDecimals": { "minimum": 0, "type": "integer" } }, "required": [ "sellTokenApproved", "buyTokenApproved", "sellTokenDecimals", "buyTokenDecimals" ], "type": "object" }, "warnings": { "items": { "type": "string" }, "type": "array" } }, "required": [ "checkId", "status", "chainId", "createdAt", "expiresAt", "pair", "amount", "estimatedOutput", "tokenVerification", "liquidity", "priceImpact", "allowance", "expectedSafeRouteFee", "warnings", "nextAction" ], "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" } }, "payment-identifier": { "info": { "required": false }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "id": { "maxLength": 128, "minLength": 16, "pattern": "^[a-zA-Z0-9_-]+$", "type": "string" }, "required": { "type": "boolean" } }, "required": [ "required" ], "type": "object" } } }, "tags": [ "bazaar", "payment-identifier" ], "sourceHost": "api.usesaferoute.com", "lastUpdated": "2026-09-17T03:54:40.989Z", "quality": { "calls30d": 2, "uniquePayers30d": 2, "lastCalledAt": "2026-09-17T03:54:40.767Z" }, "liveness": {}, "verified": false, "featured": false, "provider": { "host": "api.usesaferoute.com", "manifest_name": "api.usesaferoute.com", "source": "cdp-mirror", "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources", "submitted_at": "2026-09-18T22:00:31.484Z" } }