Roundhouse

gateway.gmfarcaster.com

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InfraLiveeip155:8453Exactvia cdp
https://gateway.gmfarcaster.com/v1/shoutout
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far.
$140.17
Verified settled volume
55 settlements proven x402 by their on-chain EIP-3009 marker.
$5.00
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-20 23:32Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x8a99FEF40D17e0bd6d48Ce088Cc207847D1C0596

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.

5USDC≈ $5 USD
on Base · exact scheme

Pay 5 USDC on Base to 0x8a99…C0596. The signed payment is good for 5 minutes.

Paid to
0x8a99…C0596
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x8a99FEF40D17e0bd6d48Ce088Cc207847D1C0596",
    "amount": "5000000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "read_text": "Today's GM is brought to you by Acme Frames — the fastest way to ship a Farcaster mini app. acmeframes.xyz",
          "sponsor_name": "Acme Frames"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "payer": "0x1234567890123456789012345678901234567890",
          "amount": "$5",
          "status": "pending_review",
          "request_id": "sho_8f3c2a1b9d4e",
          "status_url": "https://gateway.gmfarcaster.com/v1/shoutout/sho_8f3c2a1b9d4e",
          "submitted_at": "2026-09-16T12:00:00.000Z"
        }
      }
    },
    "schema": {
      "type": "object",
      "$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": [
                "sponsor_name",
                "read_text"
              ],
              "properties": {
                "url": {
                  "type": "string",
                  "format": "uri",
                  "description": "Optional link to include or reference for the sponsor."
                },
                "notes": {
                  "type": "string",
                  "description": "Optional internal notes for the GM Farcaster team. Never read on air."
                },
                "contact": {
                  "type": "object",
                  "properties": {
                    "x": {
                      "type": "string"
                    },
                    "email": {
                      "type": "string"
                    },
                    "farcaster": {
                      "type": "string"
                    }
                  },
                  "description": "Optional contact details for follow-up about the read."
                },
                "read_text": {
                  "type": "string",
                  "maxLength": 280,
                  "description": "The script read live on air. Keep it tight — read aloud on the show."
                },
                "sponsor_name": {
                  "type": "string",
                  "maxLength": 120,
                  "description": "The name of the sponsor or project to credit on air."
                },
                "refund_to_wallet": {
                  "type": "string",
                  "description": "Optional wallet override to receive a refund if the request is declined. Defaults to the verified on-chain payer."
                }
              }
            },
            "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
2026-09-20 23:32Z
Last indexed by Roundhouse
2026-09-24 10:50Z
Last enriched (probe, favicon, geo)
2026-09-16 20:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 404
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. 8 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 gateway.gmfarcaster.com 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=gateway.gmfarcaster.com'
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://gateway.gmfarcaster.com/v1/shoutout, 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.