---
title: "Sign a JSON payload into a JWT with an HMAC secret."
method: POST
path: "/api/v1/jwt-encode"
tags: ["Encoders & Decoders"]
---

# Sign a JSON payload into a JWT with an HMAC secret.

`POST /api/v1/jwt-encode`

## Request

- Base URL: `https://programmes.net`
- URL: `https://programmes.net/api/v1/jwt-encode`
- Auth: none declared

JWT Encoder & Signer. Operations: `sign` — Sign a JSON payload into a JWT using an HMAC secret.

## Request body

- JwtEncodeSign: Sign a JSON payload into a JWT using an HMAC secret.
  - `operation` 'sign', required
  - `input` string: the JWT payload as JSON
  - `options` object, required
    - `secret` string, required: HMAC signing secret
    - `algorithm` 'HS256' | 'HS384' | 'HS512': HMAC algorithm.

## Response `200`

The operation ran.

- object
  - `ok` unknown, required
  - `tool` 'jwt-encode', required
  - `operation` 'sign', 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)