gemini #12
Description
https://docs.gemini.com/prediction-markets/getting-started
https://docs.gemini.com/websocket/fast-api/introduction
https://api.gemini.com/v1/prediction-markets/events?limit=100&offset=0 (45% description, 10% priceHistory)
{
"data": [
{
"id": "9",
"title": "Fed decision in January?",
"slug": "fed-decision-in-january",
"description": "What will the Fed decide to do with interest rates in their January 2026 meeting?",
"imageUrl": "https://images.ctfassets.net/jg6lo9a2ukvr/7HmWBFGRCksZu9qVm1creE/9f9de06a5678f4124a73e7af597bf8d1/AdobeStock_241944992_1.png",
"type": "categorical",
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"series": "Example series",
"ticker": "FEDJAN26",
"status": "active",
"createdAt": "2025-12-14T20:33:26.475Z",
"contracts": [
{
"id": "9-34",
"label": "Fed maintains rate",
"description": {
"data": {
},
"content": [
{
"data": {
},
"marks": [],
"value": "If the Federal Reserve does a Hike of 0bps on January 28, 2026, then the market resolves to Yes. Outcome verified from Federal Reserve.\n\nIf a scheduled FOMC meeting is canceled and does not occur on its scheduled date, then the strike for \"Fed maintains rate\" will resolve to Yes and all others will resolve to No.\n\nRead the full contract [terms & conditions](https://images.ctfassets.net/jg6lo9a2ukvr/SmWq4PjM8M9gvXCEuT35d/a15ca0e6203fb348c9b70d737b7a91a7/FEDDEC_Terms_and_Conditions.pdf)",
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"no": "0.2"
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"no": "0.19"
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"bestAsk": "0.81"
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"timestamp": "2025-12-14T20:33:26.475Z",
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"expiryDate": "2026-01-28T18:59:00.000Z",
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"ticker": "UNCH",
"instrumentSymbol": "GEMI-FEDJAN26-UNCH",
"effectiveDate": "2025-12-15T13:00:00.000Z"
},
{
"id": "9-37",
"label": "Cut 25bps",
"description": {
"data": {
},
"content": [
{
"data": {
},
"marks": [],
"value": "If the Federal Reserve decreases rates up to or equal to 25bps on January 28, 2026, then the market resolves to Yes. Outcome verified from Federal Reserve.\n\nIf a scheduled FOMC meeting is canceled and does not occur on its scheduled date, then the strike for \"Fed maintains rate\" will resolve to Yes and all others will resolve to No.\n\nRead the full contract [terms & conditions](https://images.ctfassets.net/jg6lo9a2ukvr/SmWq4PjM8M9gvXCEuT35d/a15ca0e6203fb348c9b70d737b7a91a7/FEDDEC_Terms_and_Conditions.pdf)",
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"no": "0.8"
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"no": "0.74"
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"bestAsk": "0.26"
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"timestamp": "2025-12-14T20:33:26.475Z",
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"expiryDate": "2026-01-28T19:00:00.000Z",
"termsAndConditionsUrl": "/terms",
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"instrumentSymbol": "GEMI-FEDJAN26-DN25",
"effectiveDate": "2025-12-15T05:00:00.000Z"
},
{
"id": "9-35",
"label": "Hike 25bps or more",
"description": {
"data": {
},
"content": [
{
"data": {
},
"marks": [],
"value": "If the Federal Reserve does a hike of 25bps or more on January 28, 2026, then the market resolves to Yes. Outcome verified from Federal Reserve.\n\nIf a scheduled FOMC meeting is canceled and does not occur on its scheduled date, then the strike for \"Fed maintains rate\" will resolve to Yes and all others will resolve to No.\n\nRead the full contract [terms & conditions](https://images.ctfassets.net/jg6lo9a2ukvr/SmWq4PjM8M9gvXCEuT35d/a15ca0e6203fb348c9b70d737b7a91a7/FEDDEC_Terms_and_Conditions.pdf)",
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},
"sell": {
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"color": "#359128",
"status": "active",
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{
"timestamp": "2025-12-14T20:33:26.475Z",
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"timestamp": "2025-12-15T20:33:26.475Z",
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"createdAt": "2025-12-14T20:33:26.475Z",
"expiryDate": "2026-01-28T18:59:00.000Z",
"termsAndConditionsUrl": "/terms",
"ticker": "UP25",
"instrumentSymbol": "GEMI-FEDJAN26-UP25",
"effectiveDate": "2025-12-15T05:00:00.000Z"
},
{
"id": "9-38",
"label": "Cut more than 25bps",
"description": {
"data": {
},
"content": [
{
"data": {
},
"marks": [],
"value": "If the Federal Reserve decreases rates by more than 25bps on January 28, 2026, then the market resolves to Yes. Outcome verified from Federal Reserve.\n\nIf a scheduled FOMC meeting is canceled and does not occur on its scheduled date, then the strike for \"Fed maintains rate\" will resolve to Yes and all others will resolve to No.\n\nRead the full contract [terms & conditions](https://images.ctfassets.net/jg6lo9a2ukvr/SmWq4PjM8M9gvXCEuT35d/a15ca0e6203fb348c9b70d737b7a91a7/FEDDEC_Terms_and_Conditions.pdf)",
"nodeType": "text"
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"yes": "0.03"
},
"sell": {
"no": "0.97"
},
"bestAsk": "0.03"
},
"totalShares": "0",
"color": "#0f9ee7",
"status": "active",
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"priceHistory": [
{
"timestamp": "2025-12-14T20:33:26.475Z",
"price": "0.5"
},
{
"timestamp": "2025-12-15T20:33:26.475Z",
"price": "0.52"
}
],
"createdAt": "2025-12-14T20:33:26.475Z",
"expiryDate": "2026-01-28T19:00:00.000Z",
"termsAndConditionsUrl": "/terms",
"ticker": "DN25P",
"instrumentSymbol": "GEMI-FEDJAN26-DN25P",
"effectiveDate": "2025-12-15T05:00:00.000Z"
}
],
"tags": [
"Economics",
"Economics",
"Economics",
"Economics"
],
"effectiveDate": "2025-12-14T20:33:26.475Z",
"expiryDate": "2026-01-28T19:00:00.000Z"
}
],
"pagination": {
"limit": 100,
"offset": 0,
"total": 8
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}https://api.gemini.com/v1/prediction-markets/categories
{
"categories": [
"Crypto", # 5
"Economics", # 1
"Other", # 1
"Politics", # 1
"Sports",
"Weather"
]
}
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