API Reference
API Reference
Complete API documentation for all CPF endpoints
The SimplyCPF API provides 12 endpoints organised into 5 categories.
https://simplycpf.com/api/cpf
| Method | Endpoint | Description |
|---|
| POST | /calculate | Calculate CPF contributions for a single income |
| POST | /calculate/batch | Batch calculation for multiple scenarios |
| POST | /projection | Multi-year contribution projection |
| Method | Endpoint | Description |
|---|
| GET | /age-groups | List all 8 age groups with rates |
| GET | /age-group/find | Find age group for a specific age |
| GET | /age/from-birthdate | Convert birth date to age |
| Method | Endpoint | Description |
|---|
| GET | /ceiling | Get income ceiling for a specific date |
| GET | /ceiling/timeline | Historical ceiling changes |
| Method | Endpoint | Description |
|---|
| GET | /interest-rates | All CPF rates and SGS yields |
| GET | /interest-rates/smra | Calculate SMRA rate |
| GET | /interest-rates/trend | Historical rate trends |
| Method | Endpoint | Description |
|---|
| POST | /investment-comparison | Compare investment scenarios |