Use when an agent needs to backtest or chart how a stock perp's premium/discount
Use when an agent needs to backtest or chart how a stock perp's premium/discount and funding evolved, including weekends and holidays when the stock is shut. One ticker: trade.xyz perp mark/oracle vs stock and xStock, basis, funding, OI, Aster/Lighter/OKX cross-venue gaps; 30-minute snapshots plus ~60d backfill, up to 90 days per call. Bad params return 400/404 before any charge. Errors: 400, 402, 404, 502. Data, not advice.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
441 msmedian answer time
$0.02listed price per call
$0.02price 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
GET https://perp-gap-api.perpgap.workers.dev/history
| Category | Market data |
|---|---|
| Provider host | perp-gap-api.perpgap.workers.dev |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 4 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-24 | valid payment request | 402 | $0.02 | 441 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"interval": "1h",
"ticker": "NVDA"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"from": {
"description": "Optional ISO 8601 start (default: 7 days before 'to').",
"format": "date-time",
"type": "string"
},
"interval": {
"default": "1h",
"description": "Optional bucket size.",
"enum": [
"30m",
"1h",
"4h",
"1d"
],
"type": "string"
},
"ticker": {
"description": "Stock ticker, case-insensitive (free list: GET /catalog).",
"examples": [
"NVDA"
],
"pattern": "^[A-Za-z0-9.]{1,12}$",
"type": "string"
},
"to": {
"description": "Optional ISO 8601 end (default: now).",
"format": "date-time",
"type": "string"
}
},
"required": [
"ticker"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"description": "Error responses are JSON {error: string, hint?: string}. 400 bad params (never charged); 402 payment required; 404 ticker/market not listed (checked before settlement, never charged); 502 upstream error. Full field docs: /openapi.json.",
"properties": {
"count": {
"type": "number"
},
"disclaimer": {
"type": "string"
},
"from": {
"type": "string"
},
"interval": {
"type": "string"
},
"rows": {
"type": "array"
},
"sources": {
"type": "object"
},
"ticker": {
"type": "string"
},
"to": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}