Roundhouse

Agent Mercantile

Get a factual snapshot of supported Aave V3 lending rates and Lido staking APR for Ethereum or Base assets. $0.01 USDC per paid call. No API key or account.

SearchLiveeip155:8453Exactvia cdp
https://api.agentmercantile.com/v1/x402-presign-handoff
x402-presign-handoffPre-sign-packetPayment-requirementPayer-coverageSigner-handoff
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 7 snapshots so far.
$0.55
Verified settled volume
33 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.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-18 05:07Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xdb7b2b54f80479826222749a2ea73a8acc306e1e

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.

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 0xdb7b…06e1e. The signed payment is good for 1 minute.

Paid to
0xdb7b…06e1e
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xdb7b2b54f80479826222749a2ea73a8acc306e1e",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "method": "POST",
          "resource_url": "https://api.agentmercantile.com/v1/url-context",
          "payer_address": "0x1111111111111111111111111111111111111111",
          "allowed_pay_to": [
            "0xdb7b2b54f80479826222749a2ea73a8acc306e1e"
          ],
          "max_amount_atomic": "20000"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "status": "OK",
          "machine": "VM09",
          "decision": "READY",
          "methodology_version": "x402-presign-handoff-0.1.0"
        }
      },
      "description": "Produce a normalized pre-sign evidence packet for one exact unpaid x402 v2 exact Base USDC requirement: request identity, selected requirement, public payer coverage, caller ceiling, optional baseline evidence, and an integrity digest. Does not sign, pay, construct a transaction, or recommend whether to buy."
    },
    "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": [
                "resource_url",
                "method",
                "payer_address",
                "max_amount_atomic",
                "allowed_pay_to"
              ],
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST"
                  ],
                  "type": "string"
                },
                "resource_url": {
                  "type": "string",
                  "format": "uri",
                  "description": "Public HTTPS x402 resource URL."
                },
                "payer_address": {
                  "type": "string"
                },
                "allowed_pay_to": {
                  "type": "array",
                  "items": {
                    "type": "string"
                  }
                },
                "max_amount_atomic": {
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "status",
                "machine",
                "methodology_version",
                "decision"
              ],
              "properties": {
                "status": {
                  "enum": [
                    "OK",
                    "PARTIAL",
                    "HOLD"
                  ],
                  "type": "string"
                },
                "machine": {
                  "enum": [
                    "VM09"
                  ],
                  "type": "string"
                },
                "decision": {
                  "enum": [
                    "READY",
                    "NOT_READY",
                    "INDETERMINATE"
                  ],
                  "type": "string"
                },
                "methodology_version": {
                  "enum": [
                    "x402-presign-handoff-0.1.0"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": true
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-18 05:07Z
Last indexed by Roundhouse
2026-09-24 09:20Z
Last enriched (probe, favicon, geo)
2026-09-18 06:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 404
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. 7 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 Agent Mercantile 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%20Mercantile'
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://api.agentmercantile.com/v1/x402-presign-handoff, 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.