Jwt Token Validator
Provides JWT guidance and assistance for implementing security and authentication.
Install on your platform
We auto-selected Claude Code based on this skill’s supported platforms.
Run in terminal (recommended)
claude mcp add jwt-token-validator npx -- -y @trustedskills/jwt-token-validator
Or manually add to ~/.claude/settings.json
{
"mcpServers": {
"jwt-token-validator": {
"command": "npx",
"args": [
"-y",
"@trustedskills/jwt-token-validator"
]
}
}
}Requires Claude Code (claude CLI). Run claude --version to verify your install.
About This Skill
What it does
The jwt-token-validator skill validates JSON Web Tokens (JWTs) against a provided public key or URL. It can verify the signature and claims of a JWT, ensuring its authenticity and integrity. This is crucial for securely verifying user authentication and authorization in web applications and APIs.
When to use it
- API Security: Verify that incoming requests include valid JWTs before granting access to protected resources.
- User Authentication Verification: Confirm the validity of a token presented by a user during login or subsequent actions.
- Token Exchange: Validate tokens received from external identity providers (IdPs) as part of a token exchange process.
- Decryption Validation: Ensure that encrypted data protected by JWTs is only decrypted with valid, verified tokens.
Key capabilities
- JWT Signature Verification
- Public Key Validation
- Claim Verification
- URL-based Public Key Retrieval
Example prompts
- "Validate this JWT: [JWT Token] using public key: [Public Key]"
- "Is this token valid? [JWT Token] Key URL: [Public Key URL]"
- "Verify the 'email' claim in this JWT: [JWT Token] against a public key."
Tips & gotchas
- Ensure you have access to the correct and up-to-date public key for validation. Incorrect keys will lead to false positives or negatives.
Tags
TrustedSkills Verification
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Security Audits
| Gen Agent Trust Hub | Pass |
| Socket | Pass |
| Snyk | Pass |
🌐 Community
Passed automated security scans.