SignalSumo Related keywords API pricing
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100% complete: all 6 fields on our checklistSee the 6 fields
$49.50per 1,000 keywordsWe haven't run SignalSumo through our related keywords API benchmark yet.We rank 253 plans for related keywords APIs by price. Half the plans cost $0.735 or less per 1,000 keywords. 2 of the 253 plans cost more per 1,000 keywords than this plan.Keys.so's ₽34,900 (about $417) monthly plan is the cheapest paid plan per 1,000 keywords, with no charge per call. You get as many keywords as Keys.so's rate limit allows. AnyAPI's pay-as-you-go plan costs the least for 10,000 keywords a month: $1.60.seodata.dev's $4.99 monthly plan covers any number of keywords, and costs less up front than Keys.so's ₽34,900 (about $417) monthly plan.DataForSEO, Mangools and Bing Webmaster Tools are the best related keywords API providers in the Datacircle benchmark.
Plan: Pro — monthly one of SignalSumo's 4 plans
- $99 monthlyPro — monthly$49.50 per 1,000
- $249 monthlyAgency — monthly$24.90 per 1,000
- $990 yearlyPro — annual$41.25 per 1,000
- $2,499 yearlyAgency — annual$20.825 per 1,000
Call:
POST / SignalSumo's only call for this APIAPI: Related keywords API one of SignalSumo's 4 APIs
About this item
- Freshness. We don't know how fresh this plan's data is.
- All 6 fields on our checklist. Search volume, Monthly trend, Cost per click, Competition, Keyword difficulty, Search intent.
- A monthly subscription. You pay $99 a month for 20 requests, enough for 20 pages. Calls stop once your requests run out.
- One call. You send
keywordtoPOST /. You set thekeyword-research Content-Typeheader to "application/json". You can also sendlocation_,code language_andcode limit. The call returns keywords like the one you send. - Who can get it: anyone at least 18 years old and able to form a binding contract. Keep data: no limit. Use data: with conditions.
SignalSumo: related keywords API alternatives
SignalSumo alternatives: other related keywords API providers by price
We list other providers' plans closest to this plan in price per 1,000 keywords. We also show the SEOZoom plan. Its price is farther from this plan's price.
| This planSignalSumo, $99 monthly | EverBee, top-up | Morningscore, $69 monthly | Local SEO Data, top-up from $5, Pay-As-You-Go, POST /v1/keywords/related | Ahrefs, $129 monthly, Lite, GET /v3/keywords-explorer/related-terms, Related terms, full | SEOZoom, €99 monthly | |
|---|---|---|---|---|---|---|
| $ per 1,000 keywords | $49.50 | $7.50 | $13.80 | $36.00 | $44.505 | $1,485.396 |
| Completeness | 100% | 33% | 50% | 50% | 50% | 17% |
| Billing | monthly | pay first | monthly | pay first | monthly | monthly |
| Pay | $99 | any amount | $69 | $5 | $129 | €99 |
| Enough for | 20 pages a month | as many as you pay for | 25 pages a month | about 13 pages | about 2,898 results a month | about 2 results a day |
| Who can get it | anyone at least 18 years old and able to form a binding contract | anyone with an EverBee account (a Hobby account can add up to $30 of API credits a month, paid plans have no limit) | anyone | anyone | anyone with an Ahrefs account, only workspace owners and admins create API keys | anyone |
Sources
From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-12.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- Search volume
- Monthly trend
- Cost per click
- Competition
- Keyword difficulty
- Search intent
| $ per 1,000 keywords | $49.50 |
|---|---|
| Per | page of 100 |
| Billing | monthly |
| $ a month | $99 |
| Also pays for | from the same budget: GET Usage · GET Backlinks · POST Site Audit · GET Jobs · GET Tracked Keywords · GET Rank History · GET GSC Properties · GET GSC Queries · GET AI Projects · GET Share of Voice · GET Locations |
|---|
| Units cap | hard |
|---|
| $ per 1,000 calls that find nothing | $4,950.00 |
|---|
| Their pitch | Returns a full metric set for a seed keyword — search volume, CPC, competition, difficulty, search intent, a 12-month volume trend, SERP features and more — plus a ranked list of related keywords carrying the same fields. |
|---|
| Keep data | no limit |
|---|---|
| Use data | The reports, analysis outputs, and data exports generated by the Platform for your account are yours to use for your own business purposes. You may not resell or redistribute Platform outputs as a standalone data product without our express written consent. [...] You must not: [...] Share account credentials with third parties or resell access to the Platform without authorisation. [...] Use any output from the Platform to engage in spam, phishing, or other deceptive practices. |
| Pay | $99 |
|---|---|
| You get | 20 requests a month |
| Enough for | 20 pages a month |
| Expires | 1st of each month |
| Per second | 0.33 (20 a minute) |
|---|---|
| Batch | 1 |
| Answer | in the call |
|---|
| You send | keyword, Content-Type header "application/json". Optional: location_code, language_code, limit |
|---|---|
| Method | POST |
| Path | /keyword-research |
| Plan | Pro — monthly |
|---|---|
| Who can get it | anyone at least 18 years old and able to form a binding contract |
The 22 fields the plan's answer can hold
source keyword, location code, language code, total results, keyword, search volume, cost per click, competition, competition level, keyword difficulty, intents, search volume trend, search volume growth, SERP features, low top of page bid, high top of page bid, average backlinks, average referring domains, competing domain rank, search results count, related sub-keywords, match bucket