# DataForSEO vs Similarweb (slim)

> DataForSEO scores 64.9 (B) on agent readiness against Similarweb's 46 (D), and leads in 6 of 7 scored categories. Similarweb leads on security & auth. Both do seo keywords. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/dataforseo-vs-similarweb.md (~2,100 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/dataforseo-vs-similarweb.json · canonical https://www.anchorterminal.com/compare/dataforseo-vs-similarweb
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

DataForSEO scores 64.9 (B) on agent readiness against Similarweb's 46 (D), and leads in 6 of 7 scored categories. Similarweb leads on security & auth. Both do seo keywords.

- DataForSEO: B 64.9, rank #244 of 629 · https://www.anchorterminal.com/tools/dataforseo.min.md
- Similarweb: D 46, rank #566 of 629 · https://www.anchorterminal.com/tools/similarweb.min.md
- DataForSEO, good for Agents and products that need raw SEO data in bulk at a low unit price, across SERPs, keyword volumes, backlinks, ranked keywords and traffic estimates, and that can work with a task queue. Ahead on Reliability, 84 against 35; Schema & documentation, 86 against 63; Agent ergonomics, 84 against 67; Payments & pricing, 40 against 5; Maintenance & community, 82 against 33; Transparency & trust, 74 against 60. Also Runs on your own machine.
- Similarweb, good for Traffic and engagement estimates, traffic channel mix and keyword click data for domains an agent doesn't own, with app, company and retail data on the same key. Ahead on Security & auth, 52 against 45. Also No incidents deducted, where DataForSEO loses 6 points for them.

| Category | DataForSEO | Similarweb |
| --- | --- | --- |
| Reliability (16%) | 84 | 35 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 86 | 63 |
| Agent ergonomics (13%) | 84 | 67 |
| Security & auth (14%) | 45 | 52 |
| Payments & pricing (10%) | 40 | 5 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 82 | 33 |
| Transparency & trust (7%) | 74 | 60 |

| Fact (where they differ) | DataForSEO | Similarweb |
| --- | --- | --- |
| Vendor | DataForSEO OÜ | Similarweb Ltd. |
| Hosted endpoint | `https://api.dataforseo.com/v3/` | `https://api.similarweb.com` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP |
| Pricing | Pay per use | Paid |
| Price for seo keywords | $0.06 per call | not published |
| Licence | Proprietary service under DataForSEO's terms of service. The MCP server is Apache-2.0 and the Python client is MIT | Proprietary service under Similarweb's terms of use |
| Tools exposed | 4 | none |
| Last release | 2026-10-06 | 2026-09-24 |
| Terms last updated | 2026-06-12 | 2025-03-19 |
| Privacy policy last updated | 2026-07-24 | 2026-06-30 |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | not found in the text | yes |
| Popularity | 251 stars, 32k npm/wk, 50k PyPI/wk | none |