Roundhouse

LogicNodes

Exact answers for AI agents: 40+ tools for EVM chains and Aptos, gas on 14 chains, never a guess. Free tier; pay per call in USDC (x402) on 13 networks.

TradingLiveeip155:8453Exactvia wellknown:logicnodes.io
https://logicnodes.io/paid/v1/tools/gas_estimate
BlockchainEvmAgentsGas
Settlements · 30d
2
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.002
Verified settled volume
2 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
0 transactions, checked 2026-10-31 17:15Z
Paid to
0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonAgent #55092ERC-8004

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0x7884…3Ea0e. The signed payment is good for 1 minute.

Paid to
0x7884…3Ea0e
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
1000 smallest units
1000units
on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0x3c49…c3359
Payment window
1 minute
1000units
on Arbitrum · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0xaf88…e5831
Payment window
1 minute
1000units
on eip155:43114 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0xB97E…48a6E
Payment window
1 minute
1000units
on eip155:1329 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0xe15f…42392
Payment window
1 minute
1000units
on Ethereum · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0xa0b8…6eb48
Payment window
168 hours
1000units
on Optimism · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0x0b2c…7ff85
Payment window
168 hours
1000units
on eip155:130 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0x078d…57ad6
Payment window
168 hours
1000units
on eip155:146 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0x2921…38894
Payment window
168 hours
1000units
on eip155:480 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0x79a0…d24d1
Payment window
168 hours
1000units
on eip155:5042 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0x3600…00000
Payment window
168 hours
1000units
on eip155:999 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7884…3Ea0e
Token contract
0xb883…a630f
Payment window
168 hours
1000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
EWRrxs…WxXpj
Token contract
EPjFWd…TDt1v
Payment window
1 minute
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:42161",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:43114",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
    "extra": {
      "name": "USDC",
      "version": "2"
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:1329",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
          "decimals": 6,
          "authorizationVersions": [
            "1",
            "2"
          ]
        },
        {
          "symbol": "cirBTC",
          "address": "0x72dfb2e44f59c5ad2bafe84314e5b99a7cd5075e",
          "decimals": 8,
          "authorizationVersions": [
            "2"
          ]
        },
        {
          "symbol": "EURC",
          "address": "0x1abaea1f7c830bd89acc67ec4af516284b1bc33c",
          "decimals": 6,
          "authorizationVersions": [
            "2"
          ]
        }
      ],
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:1",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x0b2c639c533813f4aa9d7837caf62653d097ff85",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0x0b2c639c533813f4aa9d7837caf62653d097ff85",
          "decimals": 6,
          "authorizationVersions": [
            "1",
            "2"
          ]
        }
      ],
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:10",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x078d782b760474a361dda0af3839290b0ef57ad6",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0x078d782b760474a361dda0af3839290b0ef57ad6",
          "decimals": 6,
          "authorizationVersions": [
            "1",
            "2"
          ]
        }
      ],
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:130",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0x29219dd400f2bf60e5a23d13be72b486d4038894",
          "decimals": 6,
          "authorizationVersions": [
            "1",
            "2"
          ]
        }
      ],
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:146",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
          "decimals": 6,
          "authorizationVersions": [
            "1",
            "2"
          ]
        },
        {
          "symbol": "EURC",
          "address": "0x1c60ba0a0ed1019e8eb035e6daf4155a5ce2380b",
          "decimals": 6,
          "authorizationVersions": [
            "2"
          ]
        }
      ],
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:480",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x3600000000000000000000000000000000000000",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0x3600000000000000000000000000000000000000",
          "decimals": 6,
          "authorizationVersions": [
            "1",
            "2"
          ]
        },
        {
          "symbol": "cirBTC",
          "address": "0x171a4217b86a807a64eb94757db6849fb4bdbaa0",
          "decimals": 8,
          "authorizationVersions": [
            "2"
          ]
        },
        {
          "symbol": "EURC",
          "address": "0xbef5f6d51cb62b58e6a8f77868681825c6fe21c1",
          "decimals": 6,
          "authorizationVersions": [
            "2"
          ]
        }
      ],
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:5042",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0xb88339cb7199b77e23db6e890353e22632ba630f",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0xb88339cb7199b77e23db6e890353e22632ba630f",
          "decimals": 6,
          "authorizationVersions": [
            "1",
            "2"
          ]
        }
      ],
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0x78845031f7bCA8fB9F3Ac0cc86678Ef8cE33Ea0e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:999",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
    },
    "payTo": "EWRrxshztUL5PgV8LrE1n9QyZF1MDh23Q6Y14mkWxXpj",
    "amount": "1000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "chain": "eip155:8453"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "tool": "gas_estimate"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "chain"
              ],
              "properties": {
                "chain": {
                  "type": [
                    "string",
                    "number"
                  ],
                  "description": "CAIP-2 chain id such as eip155:8453 (Base) or aptos:1; a bare EVM chain id number also works. Chain names like \"base\" are refused."
                },
                "confidenceLevels": {
                  "type": "array",
                  "items": {
                    "type": "integer",
                    "maximum": 99,
                    "minimum": 1
                  },
                  "maxItems": 12,
                  "minItems": 1,
                  "description": "EVM only"
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
—
Last indexed by Roundhouse
2026-10-31 16:45Z
Last enriched (probe, favicon, geo)
2026-10-31 17:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 405
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service LogicNodes and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=LogicNodes'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://logicnodes.io/paid/v1/tools/gas_estimate, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.