Best API Clients in 2026
Updated
38 API clients ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
38ranked
1free plans on this page
$10/molowest paid tier
3 Oct 2026last checked
API clients, ranked on how quickly a newcomer can get going. 2 of the 13 on this page can be tried for free.
- 26 WhoisJSON APIPaid from $10/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 27 Restfox
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 28 KarvePaid from $39.99/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 29 Refit
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 30 curl
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 31 GraphiQL
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 32 Posting
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 33 xh
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 34 Restish
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 35 NativeRestPaid from $199/mo
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 36 SPARQLWrapper
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 37 HTTP Prompt
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 38 nasapower
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
Compare all 13 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | GraphQL support | gRPC support |
|---|---|---|---|---|---|---|---|---|
| 26 | WhoisJSON API | 6.4 | Free plan | $10/mo | Yes | — | — | — |
| 27 | Restfox | 6.3 | No | — | — | — | — | — |
| 28 | Karve | 6.2 | No | $39.99/mo | No | — | No | No |
| 29 | Refit | 6.1 | No | — | Yes | — | — | — |
| 30 | curl | 6.1 | No | — | Yes | — | — | — |
| 31 | GraphiQL | 6.0 | No | — | Yes | — | Yes | — |
| 32 | Posting | 6.0 | No | — | — | — | — | — |
| 33 | xh | 5.8 | No | — | Yes | — | — | — |
| 34 | Restish | 5.8 | No | — | Yes | — | — | — |
| 35 | NativeRest | 5.8 | No | $199/mo | No | — | Yes | — |
| 36 | SPARQLWrapper | 5.6 | No | — | Yes | — | No | No |
| 37 | HTTP Prompt | 5.5 | No | — | — | — | — | — |
| 38 | nasapower | 5.5 | No | — | Yes | — | No | No |
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