swarm-agent.net

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-SIGNATURE header is required (x402 v2; X-PAYMENT also accepted)",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x67Beebd18EbB2B8B721474374c116478ef088853",
      "amount": "750000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://swarm-agent.net/services/summary",
      "description": "A short brief, about one page, on a topic you specify, researched on the live web at the time of the request, with every source linked. Typically 60-120 s; allow 180 s. POST {\"topic\":\"...\"}. Use it when your agent needs current, sourced facts on a topic and has no web access of its own.",
      "maxTimeoutSeconds": 180
    }
  ],
  "resource": {
    "url": "https://swarm-agent.net/services/summary",
    "mimeType": "application/json",
    "description": "A short brief, about one page, on a topic you specify, researched on the live web at the time of the request, with every source linked. Typically 60-120 s; allow 180 s. POST {\"topic\":\"...\"}. Use it when your agent needs current, sourced facts on a topic and has no web access of its own."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "topic": "Stablecoin payment volume on Base over the last 30 days"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "topic": "How the Coinbase x402 Bazaar indexes sellers in 2026: requirements, discovery extension, and common reasons a settled endpoint is not listed",
            "markdown": "# Brief: How the Coinbase x402 Bazaar Indexes Sellers (2026)\n\n## What the Bazaar Is\n\nThe x402 Bazaar is Coinbase's discovery layer for the x402 micropayment protocol. Per Coinbase's own developer documentation, the x402 Bazaar is a catalog of payment-gated services discovered by the CDP Facilitator, searchable by intent, browsable by all indexed resources, or filterable by merchant address. Bazaar discovery is public, exposed via REST endpoints, an SDK, and an MCP interface for agentic buyers.\n\n## Listing Requirements\n\nListing is tied specifically to Coinbase's own facilitator, not the x402 pr\n\n[... truncated in this example ...]",
            "wordCount": 1224,
            "generatedAt": "2026-10-01T09:07:28.045Z"
          }
        }
      },
      "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": {
                  "topic": {
                    "type": "string",
                    "minLength": 1,
                    "description": "What to research."
                  },
                  "context": {
                    "type": "string",
                    "description": "Optional background you already have."
                  },
                  "requirements": {
                    "type": "string",
                    "description": "Optional format or angle to follow."
                  }
                }
              },
              "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": [
                  "markdown",
                  "wordCount",
                  "generatedAt",
                  "topic"
                ],
                "properties": {
                  "topic": {
                    "type": "string",
                    "description": "The topic as it was researched."
                  },
                  "markdown": {
                    "type": "string",
                    "description": "The work itself, in Markdown, with every source linked."
                  },
                  "wordCount": {
                    "type": "integer",
                    "description": "Length of the Markdown, in words."
                  },
                  "generatedAt": {
                    "type": "string",
                    "format": "date-time",
                    "description": "When it was produced."
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "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.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x67Beebd18EbB2B8B721474374c116478ef088853",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://swarm-agent.net/services/summary",
    "description": "SWARM Research Brief - One-page brief on any topic, researched on the live web at request time, every source linked. Requires `topic`. 60-120 s (allow 180 s). Not billed if it fails. $0.75.",
    "maxAmountRequired": "750000",
    "maxTimeoutSeconds": 180
  }
]

Provenance

Seen in the source catalog

2026-10-16 10:56Z

Last indexed by Roundhouse

2026-10-25 16:16Z

Last enriched (probe, favicon, geo)

2026-10-02 13:15Z

x402 version

1

Max timeout

180s

Liveness probe

HTTP 402