---
title: "Encode and decode UTF-8 text as Base32 (RFC 4648 + hex), Crockford Base32, Base58 (Bitcoin), Ascii85 or Z85."
method: POST
path: "/api/v1/base-n"
tags: ["Encoders & Decoders"]
---

# Encode and decode UTF-8 text as Base32 (RFC 4648 + hex), Crockford Base32, Base58 (Bitcoin), Ascii85 or Z85.

`POST /api/v1/base-n`

## Request

- Base URL: `https://programmes.net`
- URL: `https://programmes.net/api/v1/base-n`
- Auth: none declared

Base32, Base58 & Base85 Encoder. Operations: `encode` — Encode UTF-8 text in the chosen scheme. `decode` — Decode to UTF-8 text (binary payloads are returned as hex).

## Request body

- union
  - BaseNEncode: Encode UTF-8 text in the chosen scheme.
    - `operation` 'encode', required
    - `input` string: The text to encode.
    - `options` object
      - `scheme` 'base32' | 'base32hex' | 'crockford' | 'base58' | 'ascii85' | 'z85': Encoding scheme.
      - `padding` boolean: Base32/Base32hex: emit = padding.
      - `delimiters` boolean: Ascii85: wrap in <~ ~>.
  - BaseNDecode: Decode to UTF-8 text (binary payloads are returned as hex).
    - `operation` 'decode', required
    - `input` string: The encoded string. Whitespace is ignored.
    - `options` object
      - `scheme` 'base32' | 'base32hex' | 'crockford' | 'base58' | 'ascii85' | 'z85': Encoding scheme.

## Response `200`

The operation ran.

- object
  - `ok` unknown, required
  - `tool` 'base-n', required
  - `operation` 'encode' | 'decode', required
  - `result` unknown, required

## Other responses

- `400`: The request is not valid (https://programmes.net/api#invalid-request); The tool has no such operation (https://programmes.net/api#unknown-operation)
- `404`: No such tool (https://programmes.net/api#unknown-tool)
- `413`: The request or its input is too large (https://programmes.net/api#content-too-large)
- `415`: The body must be JSON (https://programmes.net/api#unsupported-media-type)
- `422`: An option is missing, of the wrong type or out of range (https://programmes.net/api#invalid-options); This call needs more CPU than one API call may use (https://programmes.net/api#refused); The operation could not process the input (https://programmes.net/api#tool-error)
- `429`: Too many requests (https://programmes.net/api#rate-limited)
- `500`: Internal error (https://programmes.net/api#internal-error)

---

[API](https://skmtc.dev/programmes/apis/programmes-net-api.md) · [All operations](https://skmtc.dev/programmes/apis/programmes-net-api/llms.txt) · [OpenAPI document](https://skmtc.dev/programmes/apis/programmes-net-api/revisions/aa939784a2e6?raw)