MCP For Claude Marketplace
JWT & Base64 Decoder

JWT & Base64 Decoder MCP Connector for Claude

F

Stop hallucinating Base64 translations. Instantly decode complex JWT tokens into readable headers and payloads with exact expiration mathematics.

2 tools Official Updated Jun 28, 2026 Official Vinkius Partner
More Details Connect to Claude

Decode Base64 strings and JWT tokens with exact binary precision using native Node buffers. Never let an LLM guess an expiration date again.

jwtbase64token-decodingauthenticationpayload-inspectionbinary-data

2 tools expose this connector's capabilities to your AI agent.

decode_base64_string

Pass the raw JWT string and receive the parsed JSON without any signature verification. Decodes any Base64 string deterministically into UTF-8 text

decode_jwt_token

Pass the raw Base64 text and receive the decoded content. Decodes a JWT token deterministically. Extracts the header, payload, and calculates the exact expiration date

See how to talk to your AI agent using JWT & Base64 Decoder.

Decode this Authorization Bearer JWT safely to extract the 'sub' and 'exp' claims.

✅ **Decoded Payload:** ```json { "sub": "usr_88129a", "exp": 1731945600 } ```

Evaluate if the expiration timestamp in this decoded JWT is in the past.

✅ **Status:** Token is expired. The `exp` claim translates to 2023-11-05.

Decode this raw Base64 string payload returned by the external API.

✅ **Base64 Decoded:** Returned plain UTF-8 text representation.

Yes, decoding runs completely local.

Related Connectors

NA

NavAPI MCP

6 tools Official

Manage maritime navigation — audit ports, routes, and traffic via AI.

A+ View details →
MA

MarketMuse (AI Content Strategy & SEO) MCP

10 tools Official

Plan and optimize content via MarketMuse AI — analyze topic authority, generate content briefs, and audit SEO performance.

A+ View details →
EA

EZO Asset Intelligence MCP

10 tools Official

Equip your AI agent to manage fixed assets, track inventory, and monitor checkouts via the EZO.io (EZOfficeInventory) API.

A+ View details →
CA

CallFire MCP

10 tools Official

Manage voice and SMS communications via CallFire — track calls, send texts, and monitor campaigns directly from any AI agent.

A+ View details →