x402swag.com

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",
  "price": "$0.001",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xf4F7182508895812F235C5D1c47C0cfc89fDAb5B",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://x402swag.com/api/brief/subscribe",
      "description": "Subscribe an email to the ForgeMesh Brief — event-driven x402 ecosystem intelligence for agent operators, measured from 800+ live listings. Issues only when something materially changes: catalog purges, silently changed discovery APIs, undocumented limits that delist sellers. Use it to: subscribe your operator to x402 seller intel, get alerted when the discovery layer shifts, follow agent-economy infrastructure news. $0.001 anti-spam price; unsubscribe link in every issue.",
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 300
    }
  ],
  "network": "eip155:8453",
  "returns": "Subscribes the supplied email to event-driven x402 ecosystem intelligence issues.",
  "service": "ForgeMesh Brief — x402 ecosystem intel subscription",
  "currency": "USDC",
  "how_to_pay": "Retry this POST with an x402 client; the PAYMENT-REQUIRED header carries the signed challenge.",
  "x402Version": 1,
  "free_alternative": "POST https://kit.forgemesh.io/api/brief/subscribe (same list, not catalog-indexed)."
}

Accepts

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

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xf4F7182508895812F235C5D1c47C0cfc89fDAb5B",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "POST",
        "queryParams": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "email"
            ],
            "properties": {
              "email": {
                "type": "string",
                "description": "Human inbox that should receive Brief issues"
              }
            }
          },
          "example": {
            "email": "operator@example.com"
          }
        }
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "list": "brief",
          "email": "operator@example.com",
          "cadence": "event-driven — issues only when the x402 ecosystem materially changes"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-08-05 16:08Z

Last indexed by Roundhouse

2026-09-04 16:00Z

Last enriched (probe, favicon, geo)

2026-09-24 03:45Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402