# Majestic API vs Semrush API + MCP (slim)

> Semrush scores 53.1 (D) to Majestic's 33.4 (F) for backlink data. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/majestic-vs-semrush.md (~2,350 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/majestic-vs-semrush.json · canonical https://www.anchorterminal.com/compare/majestic-vs-semrush
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Semrush API + MCP scores 53.1 (D) on agent readiness against Majestic API's 33.4 (F), and leads in every scored category. Both do backlink data.

- Majestic API: F 33.4, rank #937 of 950 · https://www.anchorterminal.com/tools/majestic.min.md
- Semrush API + MCP: D 53.1, rank #721 of 950 · https://www.anchorterminal.com/tools/semrush.min.md
- Majestic API, good for An agent that needs backlink, referring domain, anchor text and Trust Flow data in volume for an owner who already pays for the API plan.
- 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 Reliability, 34 against 17; Schema & documentation, 70 against 44; Agent ergonomics, 77 against 54; Security & auth, 54 against 32; Maintenance & community, 57 against 22; Transparency & trust, 67 against 53.

| Category | Majestic API | Semrush API + MCP |
| --- | --- | --- |
| Reliability (16%) | 17 | 34 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 44 | 70 |
| Agent ergonomics (13%) | 54 | 77 |
| Security & auth (14%) | 32 | 54 |
| Payments & pricing (10%) | 15 | 17 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 22 | 57 |
| Transparency & trust (7%) | 53 | 67 |

| Fact (where they differ) | Majestic API | Semrush API + MCP |
| --- | --- | --- |
| Vendor | Majestic (Majestic-12 Limited) | Semrush Inc. (an Adobe company) |
| Hosted endpoint | `https://api.majestic.com` | `https://api.semrush.com` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Licence | Proprietary service under Majestic's Terms and Conditions. The Python 3 connector on GitHub carries a BSD-style licence file | Proprietary service under the Semrush terms of service |
| Tools exposed | none | 14 |
| Read-only variant documented | no | yes |
| Last release | none | 2026-09-04 |
| Terms last updated | no date given | 2026-08-25 |
| Privacy policy last updated | 2026-04-01 | 2025-10-13 |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 3 stars | none |