Roundhouse

SatsSignal Demand Radar

Live x402 demand changes and evidence-backed builder decisions, paid per call with USDC on Base.

SearchLiveeip155:8453Exactvia cdp
https://srv1334799.hstgr.cloud/v1/market/validate
x402ValidationProduct-researchAgents
Settlements · 30d
120↓ 71%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$4.33
Verified settled volume
168 settlements proven x402 by their on-chain EIP-3009 marker.
$0.250
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 2026-07-22 04:19Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xc4f9f3b2Cc0EAc2542dF9f1cB8F5C118E13a0045

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.

0.25USDC≈ $0.25 USD
on Base · exact scheme

Pay 0.25 USDC on Base to 0xc4f9…a0045. The signed payment is good for 5 minutes.

Paid to
0xc4f9…a0045
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
250000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xc4f9f3b2Cc0EAc2542dF9f1cB8F5C118E13a0045",
    "amount": "250000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "thesis": "A paid endpoint that monitors x402 categories and reports competitors, prices, and demand changes.",
          "category": "research_news_monitoring",
          "targetBuyer": "x402 sellers and AI agent builders",
          "maxLaunchDays": 7
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "decision": "narrow_before_launch",
          "schemaVersion": "market.v1",
          "weightedScore": 6.4
        }
      }
    },
    "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": {
              "required": [
                "thesis"
              ],
              "properties": {
                "thesis": {
                  "type": "string",
                  "maxLength": 1200,
                  "minLength": 12
                },
                "category": {
                  "type": "string"
                },
                "targetBuyer": {
                  "type": "string",
                  "maxLength": 200
                },
                "maxLaunchDays": {
                  "type": "integer",
                  "maximum": 365,
                  "minimum": 1
                }
              }
            },
            "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
2026-07-22 04:19Z
Last indexed by Roundhouse
2026-08-04 03:20Z
Last enriched (probe, favicon, geo)
2026-09-10 17:45Z
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 SatsSignal Demand Radar 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=SatsSignal%20Demand%20Radar'
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://srv1334799.hstgr.cloud/v1/market/validate, 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.