mirrored listing x402 eip155:8453

The news and X/Twitter evidence behind Quotient forecasts on Polymarket International, Pol

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.

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5000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-11
updated

Provider

quotient-api-gateway.onrender.com · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
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    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xC3d01FD2F79d4c57aD106AB8ecc12a5dE24F97cB",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

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

Use it

curl

curl "https://quotient-api-gateway.onrender.com/api/v1/sources"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://quotient-api-gateway.onrender.com/api/v1/sources");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://quotient-api-gateway.onrender.com/api/v1/sources")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/3294.json, and this resource appears in /discovery/resources and /discovery/search.