Roundhouse AI

Netzhandwerker Agent Tools

HALOWERK provides paid endpoints that AI agents call and pay for per request via x402 on Base. No account, no API key, no signup.

OtherLiveeip155:8453Exactvia cdp
https://tools.halowerk.com/v1/agent/access
x402Agent-toolsAgentAgent_access
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 23 snapshots so far.
$11.47
Verified settled volume
2,654 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0040
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 2026-08-16 11:49Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E

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.

{
  "docs": "https://tools.halowerk.com/examples",
  "tool": {
    "id": "agent_access",
    "summary": "Darf ein KI-Agent diese Seite nutzen",
    "price_usdc": "0.004",
    "input_schema": {
      "type": "object",
      "required": [
        "domain"
      ],
      "properties": {
        "path": {
          "type": "string",
          "default": "/",
          "description": "Zu pruefender Pfad, zum Beispiel /blog/artikel-1"
        },
        "domain": {
          "type": "string",
          "description": "Domain oder URL"
        }
      }
    }
  },
  "error": "payment_required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "asset": "USDC",
        "version": "2",
        "decimals": 6,
        "eip712Domain": {
          "name": "USD Coin",
          "chainId": 8453,
          "version": "2",
          "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        },
        "network_name": "Base Mainnet",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
      "amount": "4000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://tools.halowerk.com/v1/agent/access",
    "tags": [
      "x402",
      "agent-tools",
      "agent",
      "agent_access"
    ],
    "mimeType": "application/json",
    "description": "Wertet robots.txt fuer 23 benannte KI-Agenten aus, mit korrekter Gruppenauswahl und der Regel, dass die laengste passende Anweisung gewinnt. Prueft zusaetzlich X-Robots-Tag, Meta-Angaben, noai, Bezahlschranken-Hinweise, Lizenzverweise, Nutzungsbedingungen und den TDM-Vorbehalt unter /.well-known/tdmrep.json.",
    "inputSchema": {
      "type": "object",
      "required": [
        "domain"
      ],
      "properties": {
        "path": {
          "type": "string",
          "default": "/",
          "description": "Zu pruefender Pfad, zum Beispiel /blog/artikel-1"
        },
        "domain": {
          "type": "string",
          "description": "Domain oder URL"
        }
      }
    },
    "serviceName": "HALOWERK Agent Tools"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "path": "/section/technology",
            "domain": "nytimes.com"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json"
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "type": "object",
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "domain"
                ],
                "properties": {
                  "path": {
                    "type": "string",
                    "default": "/",
                    "description": "Zu pruefender Pfad, zum Beispiel /blog/artikel-1"
                  },
                  "domain": {
                    "type": "string",
                    "description": "Domain oder URL"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json"
                ],
                "type": "string"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2,
  "capability_request": {
    "url": "https://bedarf.halowerk.com/capabilities/request",
    "cost": "free",
    "method": "POST",
    "description": "Missing a capability, or does the scope not fit? Report the need here - no payment required. Similar reports are bundled; the response returns an id you can check back on.",
    "body_example": {
      "max_price": 0.01,
      "description": "what exactly is needed",
      "requested_capability": "short label"
    }
  }
}

Accepts

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

0.004USDC≈ $0.004 USD
on Base · exact scheme

Pay 0.004 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.

Paid to
0x2880…C4E5E
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
4000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "asset": "USDC",
      "version": "2",
      "decimals": 6,
      "eip712Domain": {
        "name": "USD Coin",
        "chainId": 8453,
        "version": "2",
        "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
      },
      "network_name": "Base Mainnet",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "path": "/section/technology",
          "domain": "nytimes.com"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "note": "robots.txt und Meta-Angaben sind Bitten des Betreibers, kein Vertrag.",
          "path": "/section/technology",
          "agents": [
            {
              "agent": "GPTBot",
              "reason": "Disallow trifft zu",
              "allowed": false,
              "purpose": "training",
              "operator": "OpenAI",
              "crawl_delay": null,
              "matched_rule": "Disallow: /",
              "matched_group": "exakt"
            },
            {
              "agent": "Googlebot",
              "reason": "keine Regel trifft zu",
              "allowed": true,
              "purpose": "suche",
              "operator": "Google",
              "crawl_delay": null,
              "matched_rule": null,
              "matched_group": "exakt"
            }
          ],
          "domain": "nytimes.com",
          "robots": {
            "note": null,
            "groups": 41,
            "status": 200,
            "present": true,
            "sitemaps": [
              "https://www.nytimes.com/sitemaps/new/news.xml.gz"
            ]
          },
          "stance": "training_gesperrt_abruf_erlaubt",
          "page_signals": {
            "noai": false,
            "status": 200,
            "noindex": false,
            "noarchive": true,
            "meta_robots": [
              {
                "name": "robots",
                "content": "noarchive"
              }
            ],
            "terms_links": [
              "https://help.nytimes.com/hc/en-us/articles/115014893428-Terms-of-service"
            ],
            "license_link": null,
            "paywall_hint": true,
            "x_robots_tag": null
          },
          "allowed_agents": 9,
          "checked_agents": 23,
          "tdm_reservation": {
            "status": 404,
            "present": false
          }
        }
      }
    },
    "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": [
                "domain"
              ],
              "properties": {
                "path": {
                  "type": "string",
                  "default": "/",
                  "description": "Zu pruefender Pfad, zum Beispiel /blog/artikel-1"
                },
                "domain": {
                  "type": "string",
                  "description": "Domain oder URL"
                }
              }
            },
            "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"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-16 11:49Z
Last indexed by Roundhouse
2026-09-15 11:40Z
Last enriched (probe, favicon, geo)
2026-09-23 22:45Z
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. 23 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 Netzhandwerker Agent Tools 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=Netzhandwerker%20Agent%20Tools'
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://tools.halowerk.com/v1/agent/access, 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.