Roundhouse

lab.paidapis.net

20+ small real x402 endpoints on Base mainnet USDC, each demonstrating a distinct payment mechanic: oracle, auction, escrow, task-runner, prediction market, and more.

MediaLiveeip155:8453Exactvia cdp
https://lab.paidapis.net/api/batch-resize
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 12 snapshots so far.
$16.38
Verified settled volume
46 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
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 2026-09-12 15:29Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319

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.

0.005USDC≈ $0.005 USD
on Base · exact scheme

Pay 0.005 USDC on Base to 0xf74f…81319. The signed payment is good for 5 minutes.

Paid to
0xf74f…81319
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "jobs": ""
        }
      },
      "output": {
        "type": "json",
        "example": {
          "results": [],
          "totalJobs": 0,
          "failedCount": 0,
          "processedAt": "",
          "succeededCount": 0
        }
      }
    },
    "schema": {
      "properties": {
        "input": {
          "properties": {
            "queryParams": {
              "type": "object",
              "required": [
                "jobs"
              ],
              "properties": {
                "jobs": {
                  "type": "string",
                  "description": "JSON array (max 5) of {\"url\",\"width\",\"height\"} objects."
                }
              }
            }
          }
        },
        "output": {
          "properties": {
            "example": {
              "type": "object",
              "properties": {
                "results": {
                  "type": "array",
                  "items": {
                    "type": "object"
                  }
                },
                "totalJobs": {
                  "type": "integer"
                },
                "failedCount": {
                  "type": "integer"
                },
                "processedAt": {
                  "type": "string"
                },
                "succeededCount": {
                  "type": "integer"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-12 15:29Z
Last indexed by Roundhouse
2026-09-24 10:20Z
Last enriched (probe, favicon, geo)
2026-09-12 16:15Z
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 12 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 lab.paidapis.net 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=lab.paidapis.net'
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://lab.paidapis.net/api/batch-resize, 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.