Historical odds (implied probabilities) for a Polymarket outcome token
Historical odds (implied probabilities) for a Polymarket outcome token. Returns timestamped price samples with first/last/min/max summary. Useful for: tracking probability shifts around events, computing realized volatility, backtesting prediction strategies.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
914 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agent402.tools/api/polymarket-price-history
| Category | Market data |
|---|---|
| Provider host | agent402.tools |
| Networks | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, eip155:10, eip155:1329, eip155:137, eip155:143, eip155:42161, eip155:42220, eip155:43114, eip155:4663, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, stellar:pubnet |
| Payment schemes | exact, upto |
| Self-reported calls, 30 days | 5 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.002 | 914 ms |
Example input (from the provider)
{
"body": {
"interval": "1d",
"tokenId": "73572420636299743863462231021719080735797435555188685901000528926122020595832"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"fidelity": {
"description": "Sample granularity in minutes (1-720, default 60).",
"type": "number"
},
"interval": {
"description": "Lookback window: 1h, 6h, 1d, 1w, 1m, max (default 1d).",
"type": "string"
},
"tokenId": {
"description": "CLOB token id (decimal string) from market.clobTokenIds.",
"type": "string"
}
},
"required": [
"tokenId"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"count": {
"type": "integer"
},
"fidelityMinutes": {
"type": "integer"
},
"first": {
"type": "number"
},
"interval": {
"type": "string"
},
"last": {
"type": "number"
},
"max": {
"type": "number"
},
"min": {
"type": "number"
},
"points": {
"items": {
"type": "object"
},
"type": "array"
},
"source": {
"type": "string"
},
"tokenId": {
"type": "string"
},
"truncated": {
"type": "boolean"
}
},
"required": [
"tokenId",
"interval",
"fidelityMinutes",
"count",
"min",
"max",
"first",
"last",
"points",
"truncated",
"source"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}