Roundhouse

One-Call Isolated Python Runner

One-call isolated Python execution, brokered machine work, source monitoring, and factual evidence for autonomous agents, payable with no account or API key.

InfraLiveeip155:8453Exactvia cdp
https://evidence.regulavita.com/v1/compute/python-run
PythonCode-executionSandboxIsolated-computeAgent-runtime
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 29 snapshots so far.
$3.25
Verified settled volume
81 settlements proven x402 by their on-chain EIP-3009 marker.
$0.030
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 2026-08-25 07:38Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x9500075649a70411c81f99c4314f6cff55d12579

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.

0.03USDC≈ $0.03 USD
on Base · exact scheme

Pay 0.03 USDC on Base to 0x9500…12579. The signed payment is good for 5 minutes.

Paid to
0x9500…12579
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
30000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9500075649a70411c81f99c4314f6cff55d12579",
    "amount": "30000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "code": "import json; print(json.dumps({'answer': sum(range(11))}))",
          "timeout_seconds": 10
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "product": "ISOLATED_PYTHON_RUN",
          "receipt": {
            "algorithm": "Ed25519"
          },
          "request": {
            "code_sha256": "sha256:0000000000000000000000000000000000000000000000000000000000000000",
            "code_characters": 61,
            "timeout_seconds": 10
          },
          "sandbox": {
            "runtime": "python:3.11",
            "memory_mb": 512,
            "maximum_cpu": 1,
            "termination": "FULFILLED",
            "isolated_from_service_host": true
          },
          "decision": "PYTHON_EXECUTION_COMPLETED",
          "execution": {
            "stderr": "",
            "stdout": "{\"answer\": 55}\n",
            "timed_out": false,
            "returncode": 0
          },
          "provenance": {
            "engine_version": "isolated-python-run/0.1.0"
          },
          "request_id": "isolated_python_run_example",
          "supplier_execution": []
        }
      }
    },
    "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": [
                "code"
              ],
              "properties": {
                "code": {
                  "type": "string",
                  "maxLength": 6000,
                  "minLength": 1,
                  "description": "Python 3.11 source code to execute."
                },
                "timeout_seconds": {
                  "type": "integer",
                  "default": 10,
                  "maximum": 30,
                  "minimum": 1
                }
              },
              "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",
              "required": [
                "request_id",
                "product",
                "decision",
                "execution",
                "request",
                "sandbox",
                "supplier_execution",
                "provenance",
                "receipt"
              ],
              "properties": {
                "product": {
                  "const": "ISOLATED_PYTHON_RUN"
                },
                "receipt": {
                  "type": "object"
                },
                "request": {
                  "type": "object"
                },
                "sandbox": {
                  "type": "object"
                },
                "decision": {
                  "const": "PYTHON_EXECUTION_COMPLETED"
                },
                "execution": {
                  "type": "object"
                },
                "provenance": {
                  "type": "object"
                },
                "request_id": {
                  "type": "string"
                },
                "supplier_execution": {
                  "type": "array"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-25 07:38Z
Last indexed by Roundhouse
2026-09-22 01:00Z
Last enriched (probe, favicon, geo)
2026-09-10 10:45Z
x402 version
2
Max timeout
300s
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 29 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 One-Call Isolated Python Runner 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=One-Call%20Isolated%20Python%20Runner'
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://evidence.regulavita.com/v1/compute/python-run, 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.