Roundhouse

gpt.558686.xyz

No description published for this endpoint.

InferenceLiveeip155:8453Exactvia cdp
https://gpt.558686.xyz/v1/content/seo
Calls · 30d
4→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$57.10
Verified settled volume
A floor: summed over 5,000 of 8,021 verified settlements.
$0.800
Listed price
As published in the catalog. Always read the live 402 before paying.
4
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-11 08:24Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x1f0130669ca6fd02e025a984cc038f139df19a2f

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 required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "tags": [
          "content",
          "gpt-6",
          "base",
          "x402"
        ],
        "contact": "https://github.com/wangletiand/gpt-x402-gateway/issues",
        "version": "2",
        "category": "content",
        "ownerUrl": "https://github.com/wangletiand/gpt-x402-gateway",
        "serviceUrl": "https://gpt.558686.xyz",
        "description": "Generate SEO-optimized long-form content with meta tags, headings structure, keyword integration, and readability optimization.",
        "productName": "SEO Content Writer"
      },
      "payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
      "amount": "800000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "service": {
    "mcp": "https://gpt.558686.xyz/mcp",
    "name": "gpt-x402-gateway",
    "baseUrl": "https://gpt.558686.xyz",
    "pricing": "https://gpt.558686.xyz/pricing.json"
  },
  "resource": {
    "url": "https://gpt.558686.xyz/v1/content/seo",
    "mimeType": "",
    "description": ""
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "input": "JSON request body for SEO Content Writer. Example: {\"input\": \"<task text>\", \"params\": {}}"
          },
          "type": "http",
          "method": "GET",
          "bodyType": "json"
        }
      },
      "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",
                "properties": {
                  "input": {
                    "type": "string",
                    "description": "Main task/prompt input for the product"
                  },
                  "params": {
                    "type": "object",
                    "description": "Optional product-specific parameters"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "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.

0.8USDC≈ $0.8 USD
on Base · exact scheme

Pay 0.8 USDC on Base to 0x1f01…19a2f. The signed payment is good for 5 minutes.

Paid to
0x1f01…19a2f
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
800000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "tags": [
        "seo",
        "content",
        "copywriting",
        "marketing",
        "blog",
        "meta-tags",
        "x402",
        "base"
      ],
      "contact": "https://github.com/wangletiand/gpt-x402-gateway/issues",
      "version": "2",
      "category": "content",
      "ownerUrl": "https://github.com/wangletiand/gpt-x402-gateway",
      "serviceUrl": "https://gpt.558686.xyz",
      "description": "SEO-optimized long-form content generator. Provide a topic and target keywords; get back a complete article with an optimized title tag (60 chars), meta description (155 chars), H1/H2/H3 structure, natural keyword integration, FAQ section, and a call to action. Configurable word count, tone, and language.",
      "productName": "SEO Content Writer"
    },
    "payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
    "amount": "800000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "tone": "professional",
          "topic": "How AI agents pay for APIs with stablecoins",
          "keywords": [
            "x402",
            "agent payments",
            "stablecoins"
          ],
          "language": "en",
          "wordCount": 1500
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "topic": "How AI agents pay for APIs with stablecoins",
          "article": "# How AI Agents Pay for APIs with Stablecoins\n\n...",
          "language": "en",
          "contentPlan": "Title tag: ... / Meta description: ... / H1: ... / H2: ...",
          "generatedAt": "2026-09-29T10:00:00.000Z",
          "targetWordCount": 1500
        }
      }
    },
    "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": [
                "topic"
              ],
              "properties": {
                "tone": {
                  "type": "string",
                  "description": "Writing tone (default \"professional\")"
                },
                "topic": {
                  "type": "string",
                  "description": "Article topic (required)"
                },
                "keywords": {
                  "type": "array",
                  "items": {
                    "type": "string"
                  },
                  "description": "Target keywords to integrate naturally"
                },
                "language": {
                  "type": "string",
                  "description": "Output language (default \"en\")"
                },
                "wordCount": {
                  "type": "integer",
                  "description": "Target word count (default 1500)"
                }
              },
              "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": [
                "contentPlan",
                "article",
                "topic"
              ],
              "properties": {
                "topic": {
                  "type": "string"
                },
                "article": {
                  "type": "string",
                  "description": "Full SEO-optimized article in markdown"
                },
                "language": {
                  "type": "string"
                },
                "contentPlan": {
                  "type": "string",
                  "description": "SEO plan: title tag, meta description, heading structure, keyword strategy"
                },
                "generatedAt": {
                  "type": "string",
                  "format": "date-time"
                },
                "targetWordCount": {
                  "type": "integer"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-11 08:24Z
Last indexed by Roundhouse
2026-10-26 19:30Z
Last enriched (probe, favicon, geo)
2026-09-27 14:15Z
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. 32 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 gpt.558686.xyz 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=gpt.558686.xyz'
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://gpt.558686.xyz/v1/content/seo, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.