Roundhouse AI

quotient-api-gateway.onrender.com

The news and X/Twitter evidence behind Quotient forecasts on Polymarket International, Polymarket US, Kalshi, and Limitless: recent articles and relevant posts for up to ten markets, with reasoning, evidence quotes, source tiers, authors, and canonical routing. Prefer market_keys for cross-venue or nullable-slug rows. Use this to audit a forecast or see what is moving event and asset-linked markets.

InferenceLiveeip155:8453Exactvia cdp
https://quotient-api-gateway.onrender.com/api/v1/sources
Calls · 30d
2↑ 43%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 28 snapshots so far.
$9.45
Verified settled volume
419 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
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.
1
Unique payers · 30d
Last called 2026-09-22 05:55Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xC3d01FD2F79d4c57aD106AB8ecc12a5dE24F97cB

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.

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",
  "route": {
    "route_id": "listSources",
    "required_credits": 5
  },
  "message": "Pay this request with x402 before retrying."
}

Accepts

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

0.005USDC≈ $0.005 USD
on Base · exact scheme

Pay 0.005 USDC on Base to 0xC3d0…F97cB. The signed payment is good for 5 minutes.

Paid to
0xC3d0…F97cB
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xC3d01FD2F79d4c57aD106AB8ecc12a5dE24F97cB",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "types": "article,x_post",
          "window": 48,
          "markets": "russia-x-ukraine-ceasefire-in-2026"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "sources": [
            {
              "url": "https://example-news.com/kremlin-talks",
              "type": "article",
              "title": "Kremlin rules out talks before autumn",
              "market": {
                "slug": "russia-x-ukraine-ceasefire-in-2026",
                "venue": "polymarket",
                "marketKey": "polymarket:512345",
                "marketUrl": "https://polymarket.com/event/russia-x-ukraine-ceasefire-in-2026",
                "sourceUrl": "https://gamma-api.polymarket.com/markets/512345",
                "seriesTicker": null,
                "nativeEventId": "event-123",
                "nativeMarketId": "512345",
                "quotientMarketId": "512345"
              },
              "feed_tier": "primary",
              "is_expert": null,
              "relevance": {
                "reasoning": "Directly addresses the ceasefire negotiation timeline.",
                "confidence": "high",
                "evidence_quote": "No conditions exist for negotiations before autumn."
              },
              "market_slug": "russia-x-ukraine-ceasefire-in-2026",
              "source_name": "Reuters",
              "published_at": "2026-08-01T07:40:00Z",
              "author_handle": null
            },
            {
              "url": "https://x.com/osint_account/status/1950000000000000000",
              "type": "x_post",
              "title": null,
              "market": {
                "slug": "russia-x-ukraine-ceasefire-in-2026",
                "venue": "polymarket",
                "marketKey": "polymarket:512345",
                "marketUrl": "https://polymarket.com/event/russia-x-ukraine-ceasefire-in-2026",
                "sourceUrl": "https://gamma-api.polymarket.com/markets/512345",
                "seriesTicker": null,
                "nativeEventId": "event-123",
                "nativeMarketId": "512345",
                "quotientMarketId": "512345"
              },
              "feed_tier": "specialist",
              "is_expert": true,
              "relevance": {
                "reasoning": "First-hand report on frontline posture relevant to ceasefire feasibility.",
                "confidence": "interesting",
                "evidence_quote": "Rotation activity continues on both axes."
              },
              "market_slug": "russia-x-ukraine-ceasefire-in-2026",
              "source_name": null,
              "published_at": "2026-07-31T22:10:00Z",
              "author_handle": "osint_account"
            }
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input",
        "output"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "queryParams"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "types": {
                  "type": "string"
                },
                "venue": {
                  "enum": [
                    "polymarket",
                    "polymarket_us",
                    "kalshi",
                    "limitless"
                  ],
                  "type": "string",
                  "description": "Prediction-market venue key: polymarket (Polymarket International), polymarket_us (Polymarket US), kalshi, or limitless."
                },
                "window": {
                  "type": "integer",
                  "default": 48,
                  "maximum": 168,
                  "minimum": 1
                },
                "markets": {
                  "type": "string"
                },
                "market_keys": {
                  "type": "string"
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    },
    "discoverable": true
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "required"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-zA-Z0-9_-]+$",
          "maxLength": 128,
          "minLength": 16
        },
        "required": {
          "type": "boolean"
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-22 05:55Z
Last indexed by Roundhouse
2026-09-25 07:10Z
Last enriched (probe, favicon, geo)
2026-09-24 11:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
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. 28 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 quotient-api-gateway.onrender.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=quotient-api-gateway.onrender.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://quotient-api-gateway.onrender.com/api/v1/sources, 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.