Grid-search up to 50 parameter combos of a backtest strategy; ranks by worst-hal
Grid-search up to 50 parameter combos of a backtest strategy; ranks by worst-half (H1/H2) return with neighbourhood smoothing, flags overfitting, and recommends the most robust parameters rather than the best-fit ones.
Answeringour last check, 2026-10-26
1 of 1checks answered this week
411 msmedian answer time
$0.5listed price per call
$0.5price 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://grok-backtest-api.fly.dev/optimize
| Category | Search and research |
|---|---|
| Provider host | grok-backtest-api.fly.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-26 | valid payment request | 402 | $0.5 | 411 ms |
Example input (from the provider)
{
"body": {
"end": "2026-10-25",
"fee": 0.009,
"grid": {
"atr_mult": [
1.5,
2,
3
],
"lookback": [
10,
20,
30
],
"risk_per_trade": [
0.03,
0.05
]
},
"initial_capital": 150,
"slippage": 0.002,
"start": "2026-04-25",
"strategy": {
"params": {
"gate": "btc_ma50"
},
"type": "breakout"
},
"universe": {
"mode": "point_in_time",
"top_n": 30
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"end": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
},
"fee": {
"maximum": 0.05,
"minimum": 0,
"type": "number"
},
"grid": {
"additionalProperties": {
"items": {
"anyOf": [
{
"type": "integer"
},
{
"type": "number"
},
{
"type": "string"
},
{
"type": "null"
}
]
},
"type": "array"
},
"type": "object"
},
"initial_capital": {
"exclusiveMinimum": 0,
"maximum": 1000000000,
"type": "number"
},
"rank_by": {
"enum": [
"robust",
"return"
],
"type": "string"
},
"slippage": {
"maximum": 0.05,
"minimum": 0,
"type": "number"
},
"start": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
},
"strategy": {
"additionalProperties": false,
"properties": {
"params": {
"additionalProperties": true,
"type": "object"
},
"type": {
"enum": [
"breakout",
"momentum",
"dip",
"ma_trend"
],
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
},
"universe": {
"additionalProperties": false,
"properties": {
"coins": {
"anyOf": [
{
"items": {
"type": "string"
},
"maxItems": 200,
"type": "array"
},
{
"type": "null"
}
]
},
"min_age_days": {
"maximum": 120,
"minimum": 0,
"type": "integer"
},
"min_avg_dollar_volume": {
"minimum": 0,
"type": "number"
},
"mode": {
"enum": [
"point_in_time",
"current_top",
"fixed"
],
"type": "string"
},
"top_n": {
"maximum": 200,
"minimum": 5,
"type": "integer"
}
},
"type": "object"
}
},
"required": [
"strategy",
"grid"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}