# Ahrefs vs Semrush API + MCP (slim)

> Semrush API + MCP scores 53.1 (D) on agent readiness against Ahrefs's 49.8 (D), and leads in 4 of 7 scored categories. Ahrefs leads on schema & documentation, payments & pricing and maintenance & community. Both do seo keywords. Category scores, facts, verdicts and agent notes…

- Full: https://www.anchorterminal.com/compare/ahrefs-vs-semrush.md (~2,050 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/ahrefs-vs-semrush.json · canonical https://www.anchorterminal.com/compare/ahrefs-vs-semrush
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Semrush API + MCP scores 53.1 (D) on agent readiness against Ahrefs's 49.8 (D), and leads in 4 of 7 scored categories. Ahrefs leads on schema & documentation, payments & pricing and maintenance & community. Both do seo keywords.

- Ahrefs: D 49.8, rank #526 of 629 · https://www.anchorterminal.com/tools/ahrefs.min.md
- Semrush API + MCP: D 53.1, rank #487 of 629 · https://www.anchorterminal.com/tools/semrush.min.md
- Ahrefs, good for An agent doing backlink, keyword, SERP, rank and traffic research for a team that already pays for Ahrefs, and reading that team's Rank Tracker, Site Audit, Web Analytics and Search Console data. Ahead on Schema & documentation, 85 against 70; Payments & pricing, 23 against 17; Maintenance & community, 68 against 57.
- Semrush API + MCP, good for Teams already paying for Semrush who want an agent to pull keyword, backlink, ranking and traffic estimates in one place, mainly through the MCP server. Ahead on Agent ergonomics, 77 against 63; Security & auth, 54 against 45. Also No incidents deducted, where Ahrefs loses 3 points for them.

| Category | Ahrefs | Semrush API + MCP |
| --- | --- | --- |
| Reliability (16%) | 32 | 34 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 85 | 70 |
| Agent ergonomics (13%) | 63 | 77 |
| Security & auth (14%) | 45 | 54 |
| Payments & pricing (10%) | 23 | 17 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 68 | 57 |
| Transparency & trust (7%) | 65 | 67 |

| Fact (where they differ) | Ahrefs | Semrush API + MCP |
| --- | --- | --- |
| Vendor | Ahrefs Pte. Ltd. | Semrush Inc. (an Adobe company) |
| Hosted endpoint | `https://api.ahrefs.com/v3` | `https://api.semrush.com` |
| Licence | Proprietary service under Ahrefs' terms of service. The Python SDK on GitHub is MIT | Proprietary service under the Semrush terms of service |
| Tools exposed | none | 14 |
| Read-only variant documented | no | yes |
| Last release | 2026-10-01 | 2026-09-04 |
| Terms last updated | 2026-09-14 | 2026-08-25 |
| Privacy policy last updated | 2026-08-04 | 2025-10-13 |
| Customer content may train models | yes | not found in the text |
| Terms or service can change without notice | yes | not found in the text |