Route: eip155
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
api.delx.ai
EVM Eip1559 Fee Check: EVM Eip1559 Fee Check checks dynamic-fee caps and calculates the wo
POST https://api.delx.ai/api/v1/x402/evm-eip1559-fee-check · 0.001 USD · base
0 different buyers paid this exact route 0 times in the last 30 days (Coinbase CDP catalogue); answered a valid x402 402 to our check 1 s before this answer, in 846 ms
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
"maxTimeoutSeconds": 300,
"resource": "https://api.delx.ai/api/v1/x402/evm-eip1559-fee-check",
"description": "EVM Eip1559 Fee Check: checks dynamic-fee caps and calculates the worst-case transaction fee using only bounded caller-supplied values. Call when you need a bounded evm eip1559 fee check result before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Eip1559 Fee Check as versioned deterministic JSON. Price: $0.001 USDC via…",
"mimeType": "application/json",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"max_fee_per_gas_wei": {
"type": "string",
"maxLength": 8192,
"description": "Max Fee Per Gas Wei supplied to EVM Eip1559 Fee Check; used only for this bounded calculation and processed in memory without retention."
},
"max_priority_fee_per_gas_wei": {
"type": "string",
"maxLength": 8192,
"description": "Max Priority Fee Per Gas Wei supplied to EVM Eip1559 Fee Check; used only for this bounded calculation and processed in memory without retention."
},
"gas_limit": {
"type": "integer",
"description": "Gas Limit supplied to EVM Eip1559 Fee Check; used only for this bounded calculation and processed in memory without retention."
}
},
"required": [
"max_fee_per_gas_wei",
"max_priority_fee_per_gas_wei",
"gas_limit"
],
"additionalProperties": false
},
"outputSchema": {
"type": "object",
"properties": {
"schema": {
"type": "string"
},
"operation": {
"type": "string"
},
"status": {
"type": "string"
},
"result": {
"type": "object",
"properties": {
"fee_ceiling_wei": {
"type": "string"
},
"priority_fee_ceiling_wei": {
"type": "string"
},
"fee_caps_ordered": {
"type": "boolean"
}
},
"additionalProperties": true
},
"evidence": {
"type": "object",
"properties": {
"input_sha256": {
"type": "string"
},
"retained": {
"type": "boolean"
},
"external_calls": {
"type": "integer"
}
},
"additionalProperties": true
}
},
"additionalProperties": true,
"description": "Versioned bounded first-party JSON result with input evidence; caller data is processed in memory and not retained."
},
"amount": "1000",
"extra": {
"name": "USD Coin",
"version": "2",
"app": "Delx Commerce",
"provider": "coinbase",
"provider_label": "Coinbase CDP",
"facilitator_url": "https://api.cdp.coinbase.com/platform/v2/x402",
"accept_label": "Coinbase CDP",
"erc8004_id": "14340"
}
},
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
"maxTimeoutSeconds": 300,
"resource": "https://api.delx.ai/api/v1/x402/evm-eip1559-fee-check",
"description": "EVM Eip1559 Fee Check: checks dynamic-fee caps and calculates the worst-case transaction fee using only bounded caller-supplied values. Call when you need a bounded evm eip1559 fee check result before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Eip1559 Fee Check as versioned deterministic JSON. Price: $0.001 USDC via…",
"mimeType": "application/json",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"max_fee_per_gas_wei": {
"type": "string",
"maxLength": 8192,
"description": "Max Fee Per Gas Wei supplied to EVM Eip1559 Fee Check; used only for this bounded calculation and processed in memory without retention."
},
"max_priority_fee_per_gas_wei": {
"type": "string",
"maxLength": 8192,
"description": "Max Priority Fee Per Gas Wei supplied to EVM Eip1559 Fee Check; used only for this bounded calculation and processed in memory without retention."
},
"gas_limit": {
"type": "integer",
"description": "Gas Limit supplied to EVM Eip1559 Fee Check; used only for this bounded calculation and processed in memory without retention."
}
},
"required": [
"max_fee_per_gas_wei",
"max_priority_fee_per_gas_wei",
"gas_limit"
],
"additionalProperties": false
},
"outputSchema": {
"type": "object",
"properties": {
"schema": {
"type": "string"
},
"operation": {
"type": "string"
},
"status": {
"type": "string"
},
"result": {
"type": "object",
"properties": {
"fee_ceiling_wei": {
"type": "string"
},
"priority_fee_ceiling_wei": {
"type": "string"
},
"fee_caps_ordered": {
"type": "boolean"
}
},
"additionalProperties": true
},
"evidence": {
"type": "object",
"properties": {
"input_sha256": {
"type": "string"
},
"retained": {
"type": "boolean"
},
"external_calls": {
"type": "integer"
}
},
"additionalProperties": true
}
},
"additionalProperties": true,
"description": "Versioned bounded first-party JSON result with input evidence; caller data is processed in memory and not retained."
},
"amount": "1000",
"extra": {
"name": "USD Coin",
"version": "2",
"app": "Delx Commerce",
"provider": "payai",
"provider_label": "PayAI Base",
"facilitator_url": "https://facilitator.payai.network",
"accept_label": "PayAI Base",
"erc8004_id": "14340"
}
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "28heAMpFkeUJsL7o7apiK4oJwZWq2fUHinRwbgYYsemG",
"maxTimeoutSeconds": 300,
"resource": "https://api.delx.ai/api/v1/x402/evm-eip1559-fee-check",
"description": "EVM Eip1559 Fee Check: checks dynamic-fee caps and calculates the worst-case transaction fee using only bounded caller-supplied values. Call when you need a bounded evm eip1559 fee check result before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Eip1559 Fee Check as versioned deterministic JSON. Price: $0.001 USDC via…",
"mimeType": "application/json",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"max_fee_per_gas_wei": {
"type": "string",
"maxLength": 8192,
"description": "Max Fee Per Gas Wei supplied to EVM Eip1559 Fee Check; used only for this bounded calculation and processed in memory without retention."
},
"max_priority_fee_per_gas_wei": {
"type": "string",
"maxLength": 8192,
"description": "Max Priority Fee Per Gas Wei supplied to EVM Eip1559 Fee Check; used only for this bounded calculation and processed in memory without retention."
},
"gas_limit": {
"type": "integer",
"description": "Gas Limit supplied to EVM Eip1559 Fee Check; used only for this bounded calculation and processed in memory without retention."
}
},
"required": [
"max_fee_per_gas_wei",
"max_priority_fee_per_gas_wei",
"gas_limit"
],
"additionalProperties": false
},
"outputSchema": {
"type": "object",
"properties": {
"schema": {
"type": "string"
},
"operation": {
"type": "string"
},
"status": {
"type": "string"
},
"result": {
"type": "object",
"properties": {
"fee_ceiling_wei": {
"type": "string"
},
"priority_fee_ceiling_wei": {
"type": "string"
},
"fee_caps_ordered": {
"type": "boolean"
}
},
"additionalProperties": true
},
"evidence": {
"type": "object",
"properties": {
"input_sha256": {
"type": "string"
},
"retained": {
"type": "boolean"
},
"external_calls": {
"type": "integer"
}
},
"additionalProperties": true
}
},
"additionalProperties": true,
"description": "Versioned bounded first-party JSON result with input evidence; caller data is processed in memory and not retained."
},
"amount": "1000",
"extra": {
"name": "USD Coin",
"version": "2",
"app": "Delx Commerce",
"provider": "payai",
"provider_label": "PayAI Solana",
"facilitator_url": "https://facilitator.payai.network",
"accept_label": "PayAI Solana",
"erc8004_id": "14340",
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
}
}
]Alternative 1
base-token-check
base-token-check: Rug-pull and honeypot-risk pre-check for a Base (eip155:8453) ERC-20 tok
GET https://95.216.126.169.sslip.io/v1/base-token-check · 0.01 USD · base
0 different buyers paid this exact route 0 times in the last 30 days (Coinbase CDP catalogue); answered a valid x402 402 to our check 1 s before this answer, in 1174 ms
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xb6c06eB1a3f1a1EF155a2B48eA6B4F84E9C128f7",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
}
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "13TR2nE8wUB5QEV5p4fdpa5UNatwyATfzoKJeZ3FSyM6",
"maxTimeoutSeconds": 300,
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
}
}
]Alternative 2
chiefofstaff-solana.iodized-lemon.workers.dev
Robinhood Chain (eip155:4663) token safety / rug-pull & honeypot check for ERC-20s (Dopple
GET https://chiefofstaff-solana.iodized-lemon.workers.dev/rh/check · 0.01 USD · base
0 different buyers paid this exact route 0 times in the last 30 days (Coinbase CDP catalogue); answered a valid x402 402 to our check 1 s before this answer, in 81 ms
Payment terms (sign and send with the first request)
[
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x3e9c8bda7963F6b82EB013b0415139bdA007978e",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
}
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "CTQ3MyM4fJeUJZSE5S8WL51rdBorbmXUXbyrAKTi4EHE",
"maxTimeoutSeconds": 60,
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
}
}
]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