Unnamed service
GET api.octodamus.com/v2/polymarket/odds
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Live crypto prediction-market facts from Polymarket: normalized YES/NO odds (implied probability), 24h volume, liquidity, CLOB order-book spread, and resolution status per market. Not a prediction.
Resource: api.octodamus.com/v2/polymarket/odds
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x5c6B3a3dAe296d3cef50fef96afC73410959a6Db
Payment methods: — · Last validation: 2026-09-14 16:10:01.735+00
{
"input": {
"type": "object",
"required": [
"method"
],
"properties": {
"method": {
"type": "string",
"const": "GET"
},
"headers": {
"type": "object",
"required": [
"PAYMENT-SIGNATURE"
],
"properties": {
"PAYMENT-SIGNATURE": {
"type": "string",
"description": "x402 EIP-3009 USDC payment signature (Base mainnet)"
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"action": {
"enum": [
"BUY",
"SELL",
"HOLD"
],
"type": "string"
},
"signal": {
"enum": [
"BULLISH",
"BEARISH",
"NEUTRAL"
],
"type": "string"
},
"btc_trend": {
"enum": [
"UP",
"DOWN",
"SIDEWAYS"
],
"type": "string"
},
"reasoning": {
"type": "string"
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0
},
"fear_greed": {
"type": "number",
"maximum": 100,
"minimum": 0
},
"polymarket_edge": {
"type": "object"
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"chainId": 8453,
"version": "2"
},
"payTo": "0x5c6B3a3dAe296d3cef50fef96afC73410959a6Db",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.octodamus.com/v2/polymarket/odds",
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"headers": {
"PAYMENT-SIGNATURE": "x402 EIP-3009 USDC payment (Base mainnet)"
}
},
"output": {
"type": "json",
"example": {
"count": 2,
"markets": [
{
"spread": 0.01,
"question": "Will Bitcoin reach $67,500 in July?",
"yes_price": 0.545,
"resolution": "open",
"liquidity_usd": 23315.17,
"implied_prob_pct": 54.5
}
]
}
}
},
"name": "Octodamus Polymarket Odds",
"tags": [
"polymarket",
"prediction market",
"odds",
"implied probability",
"order book",
"liquidity",
"crypto",
"BTC",
"market data",
"Base USDC"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"type": "object",
"required": [
"method"
],
"properties": {
"method": {
"type": "string",
"const": "GET"
},
"headers": {
"type": "object",
"required": [
"PAYMENT-SIGNATURE"
],
"properties": {
"PAYMENT-SIGNATURE": {
"type": "string",
"description": "x402 EIP-3009 USDC payment signature (Base mainnet)"
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"action": {
"enum": [
"BUY",
"SELL",
"HOLD"
],
"type": "string"
},
"signal": {
"enum": [
"BULLISH",
"BEARISH",
"NEUTRAL"
],
"type": "string"
},
"btc_trend": {
"enum": [
"UP",
"DOWN",
"SIDEWAYS"
],
"type": "string"
},
"reasoning": {
"type": "string"
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0
},
"fear_greed": {
"type": "number",
"maximum": 100,
"minimum": 0
},
"polymarket_edge": {
"type": "object"
}
}
}
}
},
"category": "trading",
"discoverable": true
}
},
"description": "Live crypto prediction-market facts from Polymarket: normalized YES/NO odds (implied probability), 24h volume, liquidity, CLOB order-book spread, and resolution status per market. Not a prediction.",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x5c6B3a3dAe296d3cef50fef96afC73410959a6Db",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "20000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.