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x402 service changes

Across the whole directory, x402 List has detected 1,013 payout address rotations and 1,893 price moves on the x402 wire in the last 90 days. Schema changes are listed below, not counted here.

What moved on the x402 wire. We fingerprint the full accepts[] on every probe, so a payout address rotation at an unchanged price shows up here even when nothing else moves. Newest first, last 90 days.

Also served as JSON and RSS.

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Showing changes for apex-on-x1 only. show all services

Observed x402 service changes. Event timestamps are UTC.
Time (UTC)ServiceChangeEvidence
APEX: Arc launch data and web pages for agents schema changed
proof what moved

endpoint added GET /api/x402/arc-bundle

endpoint added GET /api/x402/arc-fresh

endpoint added GET /api/x402/arc-hook-risk

endpoint added GET /api/x402/arc-token-check

endpoint added GET /api/x402/arc-verdict

endpoint added GET /api/x402/contract-flags

endpoint added GET /api/x402/domain-check

endpoint added GET /api/x402/tx-explain

schema added GET /api/x402/arc-bundle exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-bundle exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/arc-bundle exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/arc-bundle exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/arc-bundle exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/arc-bundle exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-bundle exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {}

schema added GET /api/x402/arc-fresh exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-fresh exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/arc-fresh exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/arc-fresh exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/arc-fresh exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/arc-fresh exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-fresh exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {}

schema added GET /api/x402/arc-hook-risk exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-hook-risk exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/arc-hook-risk exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/arc-hook-risk exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/arc-hook-risk exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/arc-hook-risk exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-hook-risk exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {}

schema added GET /api/x402/arc-token-check exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-token-check exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/arc-token-check exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/arc-token-check exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/arc-token-check exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/arc-token-check exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-token-check exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {}

schema added GET /api/x402/arc-verdict exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-verdict exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/arc-verdict exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/arc-verdict exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/arc-verdict exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/arc-verdict exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/arc-verdict exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {}

schema added GET /api/x402/contract-flags exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/contract-flags exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/contract-flags exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/contract-flags exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/contract-flags exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/contract-flags exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/contract-flags exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {}

schema added GET /api/x402/domain-check exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/domain-check exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/tx-explain exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/tx-explain exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/tx-explain exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/tx-explain exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/tx-explain exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/tx-explain exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/tx-explain exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {}

APEX: Arc launch data and web pages for agents schema changed
proof what moved

schema added GET /api/x402/echo exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/echo exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/page-extract exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/page-extract exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/site-extract exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/site-extract exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

schema added GET /api/x402/web-read exact eip155:56 0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d World Liberty Financial USD 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"World Liberty Financial USD","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in USD1 (18 decimals, EIP-712 name \"World Liberty Financial USD\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"USD1","version":"1"}

schema added GET /api/x402/web-read exact eip155:56 0xcE24439F2D9C6a2289F741120FE202248B666666 United Stables 2 300 {"credentialTypes":["authorization"],"decimals":18,"minUsd":0.01,"name":"United Stables","note":"BNB Smart Chain: sign an EIP-3009 transferWithAuthorization in U (18 decimals, EIP-712 name \"United Stables\", version \"1\") to payTo and send it base64 in PAYMENT-SIGNATURE; we settle it and pay the gas. Minimum $0.01 on BNB.","symbol":"U","version":"1"}

APEX: Arc launch data and web pages for agents schema changed
proof what moved

endpoint added GET /api/x402/page-extract

endpoint added GET /api/x402/site-extract

endpoint added GET /api/x402/web-read

schema added GET /api/x402/page-extract exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/page-extract exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/page-extract exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/page-extract exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/page-extract exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"}

schema added GET /api/x402/site-extract exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/site-extract exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/site-extract exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/site-extract exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/site-extract exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"}

schema added GET /api/x402/web-read exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/web-read exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

schema added GET /api/x402/web-read exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

schema added GET /api/x402/web-read exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/web-read exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"}

APEX: Arc launch data and web pages for agents schema changed
proof what moved

schema added GET /api/x402/echo exact eip155:5042 0x3600000000000000000000000000000000000000 GatewayWalletBatched 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

schema added GET /api/x402/echo exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 604900 {"name":"GatewayWalletBatched","note":"Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.","verifyingContract":"0x77777777dcc4d5a8b6e418fd04d8997ef11000ee","version":"1"}

APEX: Arc launch data and web pages for agents price changed
proof what moved

GET /api/x402/echo · eip155:5042 · USDC: 1000000 → 4000

GET /api/x402/echo · eip155:8453 · USDC: 1000000 → 4000

GET /api/x402/echo · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 1000000 → 4000

Amounts are on-wire atomic units in the named asset.

APEX: Arc launch data and web pages for agents price changed
proof what moved

GET /api/x402/echo · eip155:5042 · USDC: 10000 → 1000000

GET /api/x402/echo · eip155:8453 · USDC: 10000 → 1000000

GET /api/x402/echo · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 10000 → 1000000

Amounts are on-wire atomic units in the named asset.

APEX: Arc launch data and web pages for agents schema changed
proof what moved

schema removed GET /api/x402/echo exact eip155:5042 0x3600000000000000000000000000000000000000 UNKNOWN 2 300 {"note":"USDC is the native gas token on Arc, so send a plain value transfer to payTo and replay the transaction hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io"}

schema added GET /api/x402/echo exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"credentialTypes":["authorization"],"name":"USDC","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or, since USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io","version":"2"}

APEX: Arc launch data and web pages for agents payout address changed
proof what moved

payout removed 0x160168706aab75f6d6b951329706c90f32b25c56

payout added 0xd334ab5151c624cada654854e2879903dc4217ed

APEX: Arc launch data and web pages for agents schema changed
proof what moved

schema added GET /api/x402/echo exact eip155:5042 0x3600000000000000000000000000000000000000 UNKNOWN 2 300 {"note":"USDC is the native gas token on Arc, so send a plain value transfer to payTo and replay the transaction hash in X-PAYMENT-ARC. Finality is instant on inclusion.","replayHeader":"X-PAYMENT-ARC","rpc":"https://rpc.mainnet.arc.io"}

schema added GET /api/x402/echo exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"credentialTypes":["authorization"],"name":"USD Coin","note":"Sign an EIP-3009 transferWithAuthorization to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it and you pay no gas. Or pay and replay the hash in X-PAYMENT-BASE.","replayHeader":"X-PAYMENT-BASE","version":"2"}

APEX: Arc launch data and web pages for agents price changed
proof what moved

GET /api/x402/echo · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 0 → 10000

Amounts are on-wire atomic units in the named asset.

APEX: Arc launch data and web pages for agents schema changed
proof what moved

schema removed GET /api/x402/echo exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC

schema removed GET /api/x402/echo exact x1 native UNKNOWN

schema added GET /api/x402/echo exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"}

Measurement methodology

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