Biggest US stock gainers and losers (market cap over $2B), unusual volume and to
Biggest US stock gainers and losers (market cap over $2B), unusual volume and top crypto movers. Each mover: price, % change, relative volume, pre/post-market change, sector, and up to three news headlines that mention it, so the move and its likely reason come in one call. Rebuilt every 15 minutes. $0.02 per call, no account. Free 24h-delayed sample: GET https://ioswarm.io/api/v1/feeds/movers/sample.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
857 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
POST https://ioswarm.io/api/v1/feeds/movers
| Category | Market data |
|---|---|
| Provider host | ioswarm.io |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.02 | 857 ms |
Example input (from the provider)
{
"body": {
"limit": 20,
"section": "us_gainers"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"at": {
"description": "Past edition: RFC 3339 or YYYY-MM-DD.",
"type": "string"
},
"date": {
"description": "YYYY-MM-DD (UTC).",
"type": "string"
},
"limit": {
"description": "Items per section.",
"maximum": 200,
"minimum": 1,
"type": "integer"
},
"q": {
"description": "Text filter.",
"maxLength": 80,
"type": "string"
},
"section": {
"description": "One section (default: all).",
"enum": [
"us_gainers",
"us_losers",
"us_unusual_volume",
"crypto_gainers",
"crypto_losers"
],
"type": "string"
},
"ticker": {
"description": "Ticker/symbol filter.",
"type": "string"
}
},
"required": [],
"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": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}