curl --request GET \
--url https://synthesis.trade/api/v1/markets/similar-pairs{
"success": true,
"response": [
{
"source": {
"venue": "polymarket",
"event": {
"event_id": 12345,
"title": "Will Bitcoin reach $100k by end of 2025?",
"slug": "will-bitcoin-reach-100k-by-end-of-2025",
"description": "This market resolves to Yes if spot Bitcoin trades at or above $100,000 before 2025 ends.",
"image": "https://example.com/bitcoin.png",
"tags": [
"crypto",
"bitcoin"
],
"labels": [
"crypto",
"macro"
],
"neg_risk": false,
"active": true,
"liquidity": "1500000",
"volume": "5000000",
"volume24hr": "250000",
"volume1wk": "900000",
"volume1mo": "2200000",
"volume1yr": "5000000",
"live": {
"live": false,
"ended": false
},
"created_at": "2026-01-01T00:00:00",
"updated_at": "2026-01-01T00:00:00",
"ends_at": "2026-12-31T23:59:59"
},
"markets": [
{
"event_id": 12345,
"condition_id": "0xbd71b43bb47eb60dbcb41fa25df2a0ed4da612873d6e0447a2c730bd4cc25910",
"question": "Will Bitcoin reach $100k?",
"outcome": "Yes",
"slug": "will-bitcoin-reach-100k-yes",
"description": "Buy Yes if you think Bitcoin will trade at or above $100,000 before market expiry.",
"image": "https://example.com/bitcoin-market.png",
"left_outcome": "Yes",
"right_outcome": "No",
"left_price": "0.65",
"right_price": "0.35",
"left_token_id": "21742633143463906290569050155826241533067272736897614950488156847949938836455",
"right_token_id": "48572956138472615938471625938471659384716593847165938471659384716593847165938",
"winner_token_id": "",
"active": true,
"resolved": false,
"fees": true,
"decimals": 6,
"liquidity": "1500000",
"volume": "5000000",
"volume24hr": "250000",
"volume1wk": "900000",
"volume1mo": "2200000",
"volume1yr": "5000000",
"rewards": {
"rewards": false
},
"created_at": "2026-01-01T00:00:00",
"updated_at": "2026-01-01T00:00:00",
"ends_at": "2026-12-31T23:59:59"
}
],
"market_id": "0xbd71b43bb47eb60dbcb41fa25df2a0ed4da612873d6e0447a2c730bd4cc25910"
},
"target": {
"venue": "kalshi",
"event": {
"series_id": "KXBTC",
"event_id": "KXBTC-25",
"title": "Bitcoin above $100,000 on Dec 31?",
"sub_title": "Expires at year end",
"slug": "bitcoin-above-100000-on-dec-31",
"image": "https://example.com/kalshi-bitcoin.png",
"tags": [
"crypto",
"bitcoin"
],
"labels": [
"crypto",
"macro"
],
"category": "Crypto",
"active": true,
"liquidity": "800000",
"volume": "3000000",
"live": {
"is_active": true
},
"created_at": "2026-01-01T00:00:00",
"updated_at": "2026-01-01T00:00:00",
"ends_at": "2026-12-31T23:59:59"
},
"markets": [
{
"series_id": "KXBTC",
"event_id": "KXBTC-25",
"market_id": "KXBTC-25-T100000",
"kalshi_id": "T100000",
"title": "Bitcoin above $100,000?",
"outcome": "Yes",
"description": "Resolves Yes if Bitcoin settles above $100,000 on expiration.",
"image": "https://example.com/kalshi-bitcoin-market.png",
"left_outcome": "Yes",
"right_outcome": "No",
"left_price": "0.58",
"right_price": "0.42",
"left_token_id": "BRjpCHtyQLeSRWyE1yTdBQbhLkny5oEnveRijBjRoiA",
"right_token_id": "F4r2GpoNU8MBMdKqP6MCBzKEHe2Mt8s5qm4GrFcJQnbJ",
"winner_token_id": "",
"active": true,
"resolved": false,
"claimable": false,
"liquidity": "800000",
"open_interest": "1200000",
"volume": "3000000",
"volume24hr": "175000",
"dflow": {
"enabled": true
},
"jupiter": true,
"created_at": "2026-01-01T00:00:00",
"updated_at": "2026-01-01T00:00:00",
"ends_at": "2026-12-31T23:59:59"
}
],
"market_id": "KXBTC-25-T100000"
},
"distance": 0.42,
"arbitrage": 0.02,
"volume": 3000000,
"liquidity": 800000,
"ends_at": "2026-12-31T23:59:59",
"created_at": "2026-01-01T00:00:00"
}
]
}Fetch cross-venue market pairs surfaced by the similarity index.
curl --request GET \
--url https://synthesis.trade/api/v1/markets/similar-pairs{
"success": true,
"response": [
{
"source": {
"venue": "polymarket",
"event": {
"event_id": 12345,
"title": "Will Bitcoin reach $100k by end of 2025?",
"slug": "will-bitcoin-reach-100k-by-end-of-2025",
"description": "This market resolves to Yes if spot Bitcoin trades at or above $100,000 before 2025 ends.",
"image": "https://example.com/bitcoin.png",
"tags": [
"crypto",
"bitcoin"
],
"labels": [
"crypto",
"macro"
],
"neg_risk": false,
"active": true,
"liquidity": "1500000",
"volume": "5000000",
"volume24hr": "250000",
"volume1wk": "900000",
"volume1mo": "2200000",
"volume1yr": "5000000",
"live": {
"live": false,
"ended": false
},
"created_at": "2026-01-01T00:00:00",
"updated_at": "2026-01-01T00:00:00",
"ends_at": "2026-12-31T23:59:59"
},
"markets": [
{
"event_id": 12345,
"condition_id": "0xbd71b43bb47eb60dbcb41fa25df2a0ed4da612873d6e0447a2c730bd4cc25910",
"question": "Will Bitcoin reach $100k?",
"outcome": "Yes",
"slug": "will-bitcoin-reach-100k-yes",
"description": "Buy Yes if you think Bitcoin will trade at or above $100,000 before market expiry.",
"image": "https://example.com/bitcoin-market.png",
"left_outcome": "Yes",
"right_outcome": "No",
"left_price": "0.65",
"right_price": "0.35",
"left_token_id": "21742633143463906290569050155826241533067272736897614950488156847949938836455",
"right_token_id": "48572956138472615938471625938471659384716593847165938471659384716593847165938",
"winner_token_id": "",
"active": true,
"resolved": false,
"fees": true,
"decimals": 6,
"liquidity": "1500000",
"volume": "5000000",
"volume24hr": "250000",
"volume1wk": "900000",
"volume1mo": "2200000",
"volume1yr": "5000000",
"rewards": {
"rewards": false
},
"created_at": "2026-01-01T00:00:00",
"updated_at": "2026-01-01T00:00:00",
"ends_at": "2026-12-31T23:59:59"
}
],
"market_id": "0xbd71b43bb47eb60dbcb41fa25df2a0ed4da612873d6e0447a2c730bd4cc25910"
},
"target": {
"venue": "kalshi",
"event": {
"series_id": "KXBTC",
"event_id": "KXBTC-25",
"title": "Bitcoin above $100,000 on Dec 31?",
"sub_title": "Expires at year end",
"slug": "bitcoin-above-100000-on-dec-31",
"image": "https://example.com/kalshi-bitcoin.png",
"tags": [
"crypto",
"bitcoin"
],
"labels": [
"crypto",
"macro"
],
"category": "Crypto",
"active": true,
"liquidity": "800000",
"volume": "3000000",
"live": {
"is_active": true
},
"created_at": "2026-01-01T00:00:00",
"updated_at": "2026-01-01T00:00:00",
"ends_at": "2026-12-31T23:59:59"
},
"markets": [
{
"series_id": "KXBTC",
"event_id": "KXBTC-25",
"market_id": "KXBTC-25-T100000",
"kalshi_id": "T100000",
"title": "Bitcoin above $100,000?",
"outcome": "Yes",
"description": "Resolves Yes if Bitcoin settles above $100,000 on expiration.",
"image": "https://example.com/kalshi-bitcoin-market.png",
"left_outcome": "Yes",
"right_outcome": "No",
"left_price": "0.58",
"right_price": "0.42",
"left_token_id": "BRjpCHtyQLeSRWyE1yTdBQbhLkny5oEnveRijBjRoiA",
"right_token_id": "F4r2GpoNU8MBMdKqP6MCBzKEHe2Mt8s5qm4GrFcJQnbJ",
"winner_token_id": "",
"active": true,
"resolved": false,
"claimable": false,
"liquidity": "800000",
"open_interest": "1200000",
"volume": "3000000",
"volume24hr": "175000",
"dflow": {
"enabled": true
},
"jupiter": true,
"created_at": "2026-01-01T00:00:00",
"updated_at": "2026-01-01T00:00:00",
"ends_at": "2026-12-31T23:59:59"
}
],
"market_id": "KXBTC-25-T100000"
},
"distance": 0.42,
"arbitrage": 0.02,
"volume": 3000000,
"liquidity": 800000,
"ends_at": "2026-12-31T23:59:59",
"created_at": "2026-01-01T00:00:00"
}
]
}