Route: ethereum
Say what you need in plain words. You get back the paid API that buyers actually pay for and that answers right now. It comes with the exact request to send and that seller's payment terms, read seconds ago, so you can pay with your first request. Free: no key, no account.
The answer
Block info
Block info: Header-level detail for one block on Ethereum, Base, Polygon, Arbitrum, or Opt
GET https://agent402.tools/api/block-info · 0.001 USD · base
9 different buyers paid this exact route 17 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid x402 402 to our check 1 s before this answer, in 296 ms
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
},
"outputSchema": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"number": {
"type": "integer"
},
"hash": {
"type": "string"
},
"timestamp": {
"type": "integer"
},
"timestampIso": {
"type": "string"
},
"txCount": {
"type": "integer"
},
"gasUsed": {
"type": "string"
},
"gasLimit": {
"type": "string"
},
"baseFeePerGas": {
"type": "string"
}
},
"required": [
"network",
"number",
"hash",
"timestamp",
"timestampIso",
"txCount",
"gasUsed",
"gasLimit",
"baseFeePerGas"
]
}
},
{
"scheme": "upto",
"network": "eip155:8453",
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "permit2",
"facilitatorAddress": "0x14fDa13953Fc30428938E6BF950d036e77214e52"
}
},
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"maxTimeoutSeconds": 604900,
"extra": {
"name": "GatewayWalletBatched",
"version": "1",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
}
}
]Alternative 1
Latest block number
Latest block number: The latest block number on Ethereum, Base, Polygon, Arbitrum or Optim
GET https://agent402.tools/api/block-number · 0.001 USD · base
9 different buyers paid this exact route 16 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid x402 402 to our check 1 s before this answer, in 288 ms
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
},
"outputSchema": {
"type": "object",
"properties": {
"network": {
"type": "string"
},
"blockNumber": {
"type": "integer"
},
"hex": {
"type": "string"
}
},
"required": [
"network",
"blockNumber",
"hex"
]
}
},
{
"scheme": "upto",
"network": "eip155:8453",
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "permit2",
"facilitatorAddress": "0x14fDa13953Fc30428938E6BF950d036e77214e52"
}
},
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"maxTimeoutSeconds": 604900,
"extra": {
"name": "GatewayWalletBatched",
"version": "1",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
}
}
]Alternative 2
proxy.suverse.io
Ethereum mainnet gas prices (safe / standard / fast tier) real-time from Etherscan V2. AI
GET https://proxy.suverse.io/v1/data/ethereum-gas-tracker · 0.05 USD · base
4 different buyers paid this exact route 6 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-24; answered a valid x402 402 to our check 1 s before this answer, in 1118 ms
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x260fbe1ec46968ee02e5b972507d7bb7f09f82b0",
"amount": "50000",
"maxTimeoutSeconds": 60,
"extra": {
"name": "USD Coin",
"version": "2"
}
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "CBYMYxfMGdA98qkzrYqTzTiQhP3H2scU95EB4ZxoRxuM",
"amount": "50000",
"maxTimeoutSeconds": 60,
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
}
},
{
"scheme": "exact_cosmos_authz",
"network": "cosmos:noble-1",
"asset": "uusdc",
"payTo": "noble1z5g7vts3pfjsgschfjrhq5s3ze6etxjl5lj2rj",
"amount": "50000",
"maxTimeoutSeconds": 60,
"extra": {
"symbol": "USDC",
"chainId": "noble-1",
"decimals": 6,
"facilitator": "noble18jq3tgk39z8qk5jz304zqkhd02gs5zkhrj7sqt"
}
}
]Alternative 3
BlockRun.AI
BlockRun.AI: Detailed TVL + breakdown for a single protocol. Pass slug as `/v1/defillama/p
GET https://blockrun.ai/api/v1/defillama/protocol/ethereum · 0.006 USD · base
3 different buyers paid this exact route 37 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-22; answered a valid 402 at the census probe (2026-10-22)
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "6000",
"payTo": "0xe9030014F5DAe217d0A152f02A043567b16c1aBf",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
}
}
]Alternative 4
Gas price
Gas price: Current gas price on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo,
GET https://agent402.tools/api/gas-estimate · 0.001 USD · base
8 different buyers paid this exact route 14 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-25; answered a valid 402 at the census probe (2026-09-30)
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "1000",
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
}
}
]Only routes that answered a valid x402 402 at our census probe; the top three are checked again at answer time and one that answers goes first. Order: how well the route's own description matches your words, then distinct buyers of that exact route in 30 days and its calls (Coinbase CDP catalogue), paid in the last 7 days, input schema published, then lower price. Paid placement never changes this order; it shows only under sponsored.
Sponsored (paid placement, not ranked): Foundations Elements
For agents
GET https://bazaar.agentexchange.work/route.json?need=bitcoin%20price or POST https://bazaar.agentexchange.work/route {"need":"..."}, or the MCP tool route at https://bazaar.agentexchange.work/mcp. Optional filters: max_price_usd, network.
What buyers pay for most (30 days)
crypto · llm · inference · market-data · gateway · security · defi · ai-agents · web · finance · onchain · health · on-chain · analytics · search · evm · stocks · research · macro · trading · wallet · blockchain · monitoring · weather · generator · compliance · token · payment · price · ethereum · sec · smart-money · utility · solana · network · mcp · rest · erc20 · geo · time · address · text · validation · hyperliquid · chain · transaction · bitcoin · random · markdown · social · gas · uptime · public-records · status · twitter · forecast · seo · timestamp · clock · identifiers