Roundhouse AI

pro-api.coinmarketcap.com

Search for DEX tokens by keyword (name, symbol, or contract address).

SearchLiveeip155:8453Exactvia cdp
https://pro-api.coinmarketcap.com/x402/v1/dex/search
Calls · 30d
32↓ 12%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$44.93
Verified settled volume
4,493 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
30
Calls · 30d
Upstream's own call count for this endpoint, not ours.
17
Unique payers · 30d
Last called 2026-09-22 06:00Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA

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

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "assetTransferMethod": "eip3009",
        "x402PaymentConfigId": "699dbab79f32ffde650104aa"
      },
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 30
    },
    {
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "name": "USD Coin",
        "version": "1",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "assetTransferMethod": "permit2-exact",
        "x402PaymentConfigId": "69ef242f50455dcce02f4530"
      },
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "amount": "10000000000000000",
      "scheme": "exact",
      "network": "eip155:56",
      "maxTimeoutSeconds": 30
    },
    {
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "name": "United Stables",
        "version": "1",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "assetTransferMethod": "permit2-exact",
        "x402PaymentConfigId": "69ef242e50455dcce02f3061"
      },
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "amount": "10000000000000000",
      "scheme": "exact",
      "network": "eip155:56",
      "maxTimeoutSeconds": 30
    },
    {
      "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
      "extra": {
        "name": "United Stables",
        "version": "1",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "assetTransferMethod": "eip3009",
        "x402PaymentConfigId": "69ef242e50455dcce02f2e77"
      },
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "amount": "10000000000000000",
      "scheme": "exact",
      "network": "eip155:56",
      "maxTimeoutSeconds": 30
    },
    {
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "name": "World Liberty Financial USD",
        "version": "1",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "assetTransferMethod": "permit2-exact",
        "x402PaymentConfigId": "6a0c0019f37d0e2f6c9a3610"
      },
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "amount": "10000000000000000",
      "scheme": "exact",
      "network": "eip155:56",
      "maxTimeoutSeconds": 30
    },
    {
      "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
      "extra": {
        "name": "World Liberty Financial USD",
        "version": "1",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "assetTransferMethod": "eip3009",
        "x402PaymentConfigId": "6a0c0062f37d0e2f6c9a3612"
      },
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "amount": "10000000000000000",
      "scheme": "exact",
      "network": "eip155:56",
      "maxTimeoutSeconds": 30
    },
    {
      "asset": "0x55d398326f99059fF775485246999027B3197955",
      "extra": {
        "name": "Tether USD",
        "version": "1",
        "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
        "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
        "assetTransferMethod": "permit2-exact",
        "x402PaymentConfigId": "69ef242f50455dcce02f3c2f"
      },
      "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
      "amount": "10000000000000000",
      "scheme": "exact",
      "network": "eip155:56",
      "maxTimeoutSeconds": 30
    }
  ],
  "resource": {
    "url": "https://pro-api.coinmarketcap.com/x402/v1/dex/search",
    "mimeType": "application/json",
    "description": "Search for DEX tokens by keyword (name, symbol, or contract address)."
  },
  "x402Version": 2
}

Accepts

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

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x3C5f…B3eeA. The signed payment is good for 30 seconds.

Paid to
0x3C5f…B3eeA
USD Coin contract
0x8335…02913
Payment window
30 seconds
As published
10000 smallest units
10000000000000000units
on eip155:56 · 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
0x3C5f…B3eeA
Token contract
0x8AC7…d580d
Payment window
30 seconds
10000000000000000units
on eip155:56 · 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
0x3C5f…B3eeA
Token contract
0xcE24…66666
Payment window
30 seconds
10000000000000000units
on eip155:56 · 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
0x3C5f…B3eeA
Token contract
0xcE24…66666
Payment window
30 seconds
10000000000000000units
on eip155:56 · 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
0x3C5f…B3eeA
Token contract
0x8d0D…08B0d
Payment window
30 seconds
10000000000000000units
on eip155:56 · 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
0x3C5f…B3eeA
Token contract
0x8d0D…08B0d
Payment window
30 seconds
10000000000000000units
on eip155:56 · 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
0x3C5f…B3eeA
Token contract
0x55d3…97955
Payment window
30 seconds
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "eip3009",
      "x402PaymentConfigId": "699dbab79f32ffde650104aa"
    },
    "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 30
  },
  {
    "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
    "extra": {
      "name": "USD Coin",
      "version": "1",
      "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
      "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
      "assetTransferMethod": "permit2-exact",
      "x402PaymentConfigId": "69ef242f50455dcce02f4530"
    },
    "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
    "amount": "10000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 30
  },
  {
    "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
    "extra": {
      "name": "United Stables",
      "version": "1",
      "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
      "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
      "assetTransferMethod": "permit2-exact",
      "x402PaymentConfigId": "69ef242e50455dcce02f3061"
    },
    "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
    "amount": "10000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 30
  },
  {
    "asset": "0xcE24439F2D9C6a2289F741120FE202248B666666",
    "extra": {
      "name": "United Stables",
      "version": "1",
      "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
      "assetTransferMethod": "eip3009",
      "x402PaymentConfigId": "69ef242e50455dcce02f2e77"
    },
    "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
    "amount": "10000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 30
  },
  {
    "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
    "extra": {
      "name": "World Liberty Financial USD",
      "version": "1",
      "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
      "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
      "assetTransferMethod": "permit2-exact",
      "x402PaymentConfigId": "6a0c0019f37d0e2f6c9a3610"
    },
    "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
    "amount": "10000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 30
  },
  {
    "asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
    "extra": {
      "name": "World Liberty Financial USD",
      "version": "1",
      "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
      "assetTransferMethod": "eip3009",
      "x402PaymentConfigId": "6a0c0062f37d0e2f6c9a3612"
    },
    "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
    "amount": "10000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 30
  },
  {
    "asset": "0x55d398326f99059fF775485246999027B3197955",
    "extra": {
      "name": "Tether USD",
      "version": "1",
      "signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
      "spenderAddress": "0x3038f7ac3b4D1a3fe886BdCB5cD01e9f6BDd8633",
      "assetTransferMethod": "permit2-exact",
      "x402PaymentConfigId": "69ef242f50455dcce02f3c2f"
    },
    "payTo": "0x3C5f3a6cE224BB89D72f5EB4232ecC27F67B3eeA",
    "amount": "10000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 30
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "q": "bnb"
        },
        "discoverable": true
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "tks": [
              {
                "n": "Wrapped BNB",
                "s": "WBNB",
                "mc": 1053227843.87,
                "pu": "626.34551132653429346570",
                "cid": 7192,
                "dec": 18,
                "liq": 141742079.24,
                "plt": "BSC",
                "addr": "0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c",
                "plti": 1839,
                "v24h": 253425810.06,
                "pc24h": 0.0395,
                "pltId": 14
              }
            ],
            "total": 50
          },
          "status": {
            "elapsed": 2388,
            "timestamp": "2026-02-26T11:05:46.935Z",
            "error_code": "0",
            "credit_count": 1,
            "error_message": ""
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "queryParams"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "q"
              ],
              "properties": {
                "q": {
                  "type": "string",
                  "description": "Search keyword. Matches token name, symbol, or contract address."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "json"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-07-22 07:37Z
Last indexed by Roundhouse
2026-09-25 07:30Z
Last enriched (probe, favicon, geo)
2026-09-14 12:15Z
x402 version
2
Max timeout
30s
Liveness probe
HTTP 402
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far. 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 pro-api.coinmarketcap.com 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=pro-api.coinmarketcap.com'
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://pro-api.coinmarketcap.com/x402/v1/dex/search, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

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