Search Volume API
Request
Google search volume, CPC and competition for up to 500 keywords, with the trend of recent months.
https://seorch.net/api/searchvolume/?key=YOUR_KEY&keywords=seo%20tool,seo%20check&country=de
Parameters
| Parameters | Required | Meaning |
|---|---|---|
key | yes | Your API key, alternatively in the X-API-Key header |
keywords | yes | Keywords, separated by comma or line break |
country | no | Country code, xx (default) means worldwide |
Response
| Field | Meaning |
|---|---|
results | For each keyword search_volume, cpc, cpc_high, cpc_low, competition (0 to 100) and monthly |
skipped | Keywords with special characters or over 55 characters that the service cannot query |
{
"api_version": 1,
"country": "de",
"results": [
{
"keyword": "seo tool",
"search_volume": 8100,
"cpc": 7.51,
"cpc_high": 8.8,
"cpc_low": 2.34,
"competition": 7,
"monthly": {
"2026-09": 14800,
"2026-08": 14800
}
}
],
"skipped": [
"was?"
]
}Errors
Errors are returned as JSON with a fixed code. All APIs use missing_key and invalid_key (401), rate_limited (429) and missing or invalid parameters (400). Additionally for this API: invalid_keywords, too_many_keywords, upstream_error.
Limits
Each key allows 10 requests per minute and 500 per day. Higher limits are available on request.
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