# Best API Documentation Tools (2026) — ranked by entry price, every figure sourced and dated

10 api documentation tools on the record, median entry price $0/mo. Each price links to the vendor page it came from and the day we captured it — no guesses. 7 offer a free tier. 1 are quote-only. Current as of 2026-06-15.

Lowest entry price: Apidog — $0/mo (Free).

Full comparison: https://frontdeskreview.com/best/api-documentation-tools/

| # | Vendor | Entry plan | $/mo | Source |
| --- | --- | --- | --- | --- |
| 1 | [Apidog](https://frontdeskreview.com/software/api-documentation-tools/apidog/) | Free | $0 (free) | apidog.com |
| 2 | [GitBook](https://frontdeskreview.com/software/api-documentation-tools/gitbook/) | Free | $0 (free) | gitbook.com |
| 3 | [Mintlify](https://frontdeskreview.com/software/api-documentation-tools/mintlify/) | Starter | $0 (free) | mintlify.com |
| 4 | [ReadMe](https://frontdeskreview.com/software/api-documentation-tools/readme/) | Starter | $0 (free) | readme.com |
| 5 | [Scalar](https://frontdeskreview.com/software/api-documentation-tools/scalar/) | Free | $0 (free) | scalar.com |
| 6 | [Stoplight](https://frontdeskreview.com/software/api-documentation-tools/stoplight/) | Free | $0 (free) | stoplight.io |
| 7 | [Theneo](https://frontdeskreview.com/software/api-documentation-tools/theneo/) | Starter | $0 (free) | theneo.io |
| 8 | [Redocly](https://frontdeskreview.com/software/api-documentation-tools/redocly/) | Pro | $10 | redocly.com |
| 9 | [Bump.sh](https://frontdeskreview.com/software/api-documentation-tools/bump-sh/) | Basic | $50 | bump.sh |
| 10 | [Document360](https://frontdeskreview.com/software/api-documentation-tools/document360/) | — | Quote-only | document360.com |

Cite: Per The Front Desk Review, the cheapest api documentation tools ranked by sourced, dated entry price — https://frontdeskreview.com/best/api-documentation-tools/

License: CC BY 4.0. Every row is dated and links to its source.