agent.api.0x.org

Name: agent.api.0x.org
Price: 0.01 USDC
Availability: InStock

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TradingLiveeip155:8453Exactvia cdp

https://agent.api.0x.org/v1/x402/swap-allowance-holder-price/price

Settlements · 30d

746↓ 30%

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.

$7.89

Verified settled volume

789 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.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-07-28 01:12Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xb15a55e85FdF5edc41B6c1eaf7813e2c6e6def59

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-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xb15a55e85FdF5edc41B6c1eaf7813e2c6e6def59",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
      },
      "payTo": "94tKEV2exvhoHwUYTw8fgm2aMD5eXmHHAm6NMwcszFHU",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "assets": [
          {
            "symbol": "USDC",
            "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "decimals": 6
          }
        ],
        "version": "1",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "minValiditySeconds": 604800
      },
      "payTo": "0xb15a55e85FdF5edc41B6c1eaf7813e2c6e6def59",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 605400
    }
  ],
  "resource": {
    "url": "https://agent.api.0x.org/v1/x402/swap-allowance-holder-price/price",
    "mimeType": "application/json",
    "description": "Get the indicative price for a swap using Allowance Holder to set allowances"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "tags": [
          "swapAllowanceHolderPrice"
        ],
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {}
        },
        "output": {
          "type": "json",
          "example": {
            "gas": "",
            "zid": "",
            "fees": {},
            "route": {},
            "issues": {},
            "buyToken": "",
            "gasPrice": "",
            "buyAmount": "",
            "sellToken": "",
            "sellAmount": "",
            "blockNumber": "",
            "minBuyAmount": "",
            "allowanceTarget": "",
            "totalNetworkFee": "",
            "liquidityAvailable": false
          }
        },
        "serviceName": "0x"
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      },
      "description": "Get the indicative price for a swap using Allowance Holder to set allowances"
    }
  },
  "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 0xb15a…def59. The signed payment is good for 5 minutes.

Paid to: 0xb15a…def59
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 10000 smallest units

10000units

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: 94tKEV…szFHU
Token contract: EPjFWd…TDt1v
Payment window: 5 minutes

0.01USDC≈ $0.01 USD

on Base · exact scheme

Pay 0.01 USDC on Base to 0xb15a…def59. The signed payment is good for 168.2 hours.

Paid to: 0xb15a…def59
USD Coin contract: 0x8335…02913
Payment window: 168.2 hours
As published: 10000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xb15a55e85FdF5edc41B6c1eaf7813e2c6e6def59",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
    },
    "payTo": "94tKEV2exvhoHwUYTw8fgm2aMD5eXmHHAm6NMwcszFHU",
    "amount": "10000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "GatewayWalletBatched",
      "assets": [
        {
          "symbol": "USDC",
          "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
          "decimals": 6
        }
      ],
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
      "minValiditySeconds": 604800
    },
    "payTo": "0xb15a55e85FdF5edc41B6c1eaf7813e2c6e6def59",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 605400
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "tags": [
        "swapAllowanceHolderPrice"
      ],
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "gas": "",
          "zid": "",
          "fees": {},
          "route": {},
          "issues": {},
          "buyToken": "",
          "gasPrice": "",
          "buyAmount": "",
          "sellToken": "",
          "sellAmount": "",
          "blockNumber": "",
          "minBuyAmount": "",
          "allowanceTarget": "",
          "totalNetworkFee": "",
          "liquidityAvailable": false
        }
      },
      "serviceName": "0x"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    },
    "description": "Get the indicative price for a swap using Allowance Holder to set allowances"
  }
}

Provenance

Seen in the source catalog: 2026-07-28 01:12Z
Last indexed by Roundhouse: 2026-08-04 03:20Z
Last enriched (probe, favicon, geo): 2026-09-21 08:15Z
x402 version: 2
Max timeout: 300s
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

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 agent.api.0x.org 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=agent.api.0x.org'
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://agent.api.0x.org/v1/x402/swap-allowance-holder-price/price, 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.