Roundhouse AI

citation-tracker

An MCP server that checks whether Perplexity, ChatGPT, Claude, and Gemini cite your domain when they answer a prompt. One free Perplexity check a day, then $0.20 to $0.75 per call.

SearchLiveeip155:8453Exactvia cdp
https://citation-tracker.pixelcove.co/v1/shortlist-gate
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 23 snapshots so far.
$1.45
Verified settled volume
9 settlements proven x402 by their on-chain EIP-3009 marker.
$0.200
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 2026-09-01 23:21Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x88ff5A0608Ff45077f68200AF35618121a0FA443

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.

0.2USDC≈ $0.2 USD
on Base · exact scheme

Pay 0.2 USDC on Base to 0x88ff…FA443. The signed payment is good for 1 minute.

Paid to
0x88ff…FA443
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
200000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "tool": "citation_tracker_shortlist_gate",
      "nonce": "0x884d92312fb21d9a2ae7dba79550b47b531a4bef45219d6a6d495eefdade516a",
      "expiry": 1788305205,
      "version": "2",
      "priceUsd": "0.2"
    },
    "payTo": "0x88ff5A0608Ff45077f68200AF35618121a0FA443",
    "amount": "200000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "prompt": "example",
          "brand_terms": [
            "example.com"
          ]
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "hits": [
            "Acme"
          ],
          "fanout": [
            "Acme pricing vs competitors"
          ],
          "searched": true
        }
      }
    },
    "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": [
                "prompt",
                "brand_terms"
              ],
              "properties": {
                "prompt": {
                  "type": "string",
                  "maxLength": 4000,
                  "minLength": 1,
                  "description": "The prompt to send to the search assistant(s), verbatim. 1 to 4000 characters."
                },
                "brand_terms": {
                  "type": "array",
                  "items": {
                    "type": "string",
                    "maxLength": 100,
                    "minLength": 1
                  },
                  "maxItems": 20,
                  "minItems": 1,
                  "description": "1 to 20 brand terms to look for in the first search query."
                },
                "product_terms": {
                  "type": "array",
                  "items": {
                    "type": "string",
                    "maxLength": 100,
                    "minLength": 1
                  },
                  "default": [],
                  "maxItems": 50,
                  "minItems": 0,
                  "description": "0 to 50 product terms to look for in the first search query."
                }
              },
              "additionalProperties": false
            },
            "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"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-01 23:21Z
Last indexed by Roundhouse
2026-09-25 05:00Z
Last enriched (probe, favicon, geo)
2026-09-24 23:45Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 405
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. 23 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 citation-tracker 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=citation-tracker'
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://citation-tracker.pixelcove.co/v1/shortlist-gate, 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.