OverviewREST · JSON

JWT Decoder

Inspect a JWT's header and payload with expiry checks — decode only, no signature trust.

Method: POST
Endpoint: /v1/jwt-decode
Auth: X-API-Key
Format: JSON
Mode: decode only — no signature verify
Reads: header · payload · exp/iat/nbf
Status: 200 · 400 · 401 · 402 · 429

Trylive · no key

POST /demo/jwt-decode

application/json200

// paste a JWT and hit Decode

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Referencecurl · SDK · OpenAPI

curl -X POST https://atomios.me/api/v1/jwt-decode/ \
  -H "X-API-Key: $ATOMIOS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"token":"eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIxMjM0In0.sig"}'

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