Keyword Volume Tools — Recommendation & Cost Preview
What to use to get hard search-volume data for videocaption.io + dropclips.io · Compiled Sep 2026
Short version: use DataForSEO. It's the cheapest way to exact search volumes (pay-per-task, no subscription), it does exactly what you need (volumes + 12-month history + CPC/competition), and the MCP is already wired into Hermes — it's just waiting for credentials. The suites (Ahrefs/Semrush) cost far more for the same keyword insight.
Why DataForSEO (not Ahrefs/Semrush)
- Pay-per-task, no monthly subscription. Ahrefs Lite = $129/mo (or $29 Starter), Semrush SEO = $139/mo — paid whether you use them or not. DataForSEO: cents per call, credits never expire.
- Already in your stack. The Hermes config expects `DATAFORSEO_LOGIN` + `DATAFORSEO_PASSWORD` — it's set up but never provisioned (confirmed: creds absent from .env, MCP server not installed). That's the 401 you saw. Nothing to fix — just needs setup.
- Matches your use case. You want hard volumes for ~25-50 keywords, re-pulled on a weekly cadence (the keyword-gap loop). You don't need Ahrefs' backlink graphs or Semrush's suite.
Options ranked (real prices, verified Aug-Sep 2026)
| Option | Cost | What you get | Verdict |
|---|
| DataForSEO Google Ads search volume (Live) | $0.09/task (1,000 kw per call) | Exact volume, CPC, competition, 12-mo history | Best value |
| DataForSEO Google Ads volume (Standard) | $0.06/task, 1-3h | Same, async | Cheaper if not urgent |
| DataForSEO Trends API | $0.0012/task | Relative popularity trends over time (not exact volumes) | For trend direction only |
| Google Keyword Planner (direct) | Free | Volume ranges (not exact) unless you run ads | Free fallback |
| Search Console | Free | Your own queries' real clicks/CTR/position | Already free & real — connect it |
| Ahrefs (Lite / Starter) | $129/mo / $29/mo sub | Full suite incl. difficulty + backlinks | Overkill for volumes |
| Semrush (SEO) | $139/mo sub | SEO suite + AI visibility | Overkill for volumes |
Budget preview
- One-time volume pass: all ~30 flagged/compare keywords across both sites in one Live call ≈ $3.
- Quarter of weekly monitoring: ~50 keywords × weekly keyword-gap pull × 3 months ≈ under $20.
- Compare: Ahrefs $129/mo is $36-87 before you'd even match one DataForSEO year, and you get more than you need.
Recommended 3 moves
- Set up DataForSEO — create an account (free $1 trial credit), grab Login + Password from dataforseo.com/api-access, drop them in
~/.hermes/.env as DATAFORSEO_LOGIN / DATAFORSEO_PASSWORD, and install the MCP server. I can then pull exact volumes for all ~30 keywords for ~$3.
- Connect Search Console for videocaption.io + dropclips.io — free, and the only data that's 100% your own real traffic (queries, clicks, CTR, position). Highest value at $0.
- Use DataForSEO Trends (cents) only for time-series direction, layered on top of the two above.
Bottom line: DataForSEO is the right tool — cheap, exact, already wired into your stack. It just needs ~2 minutes of credential setup, which is also the thing blocking the keyword-gap automation from the growth plan we approved.
Prices from DataForSEO.com, Ahrefs.com, Semrush.com pricing pages (Aug-Sep 2026). Your "keyword volume" need is exact numbers + 12-mo history for ~30 keywords on a weekly cadence — squarely DataForSEO's cheapest lane.