# Best SEO software with an API

Morningscore ranks first because it supports api, supports keyword research, supports keyword difficulty, and supports keyword clustering. It is followed by Frase and Serpstat.

Products are ranked only from verified, sourced facts. Missing evidence remains unknown and does not count as a negative claim.

## Ranked products

### 1. Morningscore

Morningscore ranks 1st because:

- Morningscore supports api.
- Morningscore supports keyword research.
- Morningscore supports keyword difficulty.
- Morningscore supports keyword clustering.

Score: 15/15. Verified criteria: 4/4.

### 2. Frase

Frase ranks 2nd because:

- Frase supports api.
- Frase supports keyword research.
- Frase supports keyword clustering.

Score: 12/15. Verified criteria: 3/4.

### 3. Serpstat

Serpstat ranks 3rd because:

- Serpstat supports api.
- Serpstat supports keyword research.
- Serpstat supports keyword clustering.

Score: 12/15. Verified criteria: 3/4.

## Criteria comparison

| Criterion | Weight | Morningscore | Frase | Serpstat |
| --- | ---: | --- | --- | --- |
| API | 6 | Yes (+6) | Yes (+6) | Yes (+6) |
| Keyword research | 3 | Yes (+3) | Yes (+3) | Yes (+3) |
| Keyword difficulty | 3 | Yes (+3) | Not confirmed | Not confirmed |
| Keyword clustering | 3 | Yes (+3) | Yes (+3) | Yes (+3) |