jwt-decoder
JWT 解码器 API
无需验签即可解码和检查 JWT 令牌。提取头部(header)、有效负载(payload)、声明(claims)、过期时间和签名算法。通过 x402 按调用支付(Base 链上的 USDC)——无需 API 密钥、无需注册、无限流限制。
属于 klymax402 市场的一部分——为 AI 智能体提供 100 个 x402 微支付 API,一个钱包,Base 上的 USDC。
快速开始 -- MCP
将以下内容添加到你的 MCP 客户端配置中(Claude Desktop、Cursor、ElspaOS 等):
{
"mcpServers": {
"jwt-decoder": {
"url": "https://jwt-decoder.api.klymax402.com/mcp"
}
}
}Related MCP server: Pylon MCP Server
快速开始 -- HTTP (x402)
curl -X POST "https://jwt-decoder.api.klymax402.com/api/decode" \
-H "Content-Type: application/json" \
-d '{"token":"..."}'
# -> 402 Payment Required, with an x402 payment challenge in the response body任何兼容 x402 的客户端(@x402/fetch、x402-agent-tools、ATXP)都会自动处理 402 -> 签名 -> 重试流程。
工具
工具 | 方法 | 路径 | 价格 | 说明 |
| POST |
| $0.003 | 解码 JWT 令牌而不验签 |
security_decode_jwt
当需要在不验证签名的情况下解码和检查 JWT 令牌时,可使用此工具。返回完整的头部、负载和过期状态。
参数
名称 | 类型 | 必填 | 说明 |
| string | 是 | 要解码的 JWT 令牌(格式:header.payload.signature) |
示例响应:
{"header":{"alg":"RS256","typ":"JWT"},"payload":{"sub":"user123","exp":1720000000},"issuedAt":"2025-01-01T00:00:00Z","expiresAt":"2025-07-03T00:00:00Z","isExpired":false}使用场景:调试身份验证问题、在 API 调用前检查令牌声明,或验证令牌是否过期。发起需要身份验证的请求前,应先使用此工具检查令牌是否需要刷新。
不用于:哈希数据(使用 crypto_generate_hash)、base64 编码/解码(使用 util_encode_base64)、密码分析(使用 security_check_password)。
示例指令提示
“解码并检查一个 JWT 令牌,无需验证其签名”
付款
协议:x402——HTTP 原生按调用支付,无需注册,无需 API 密钥
网络:Base 链 L2(
e8453:155)资产:USDC
协调者:Coinbase CDP(主)、PayAI(备用)
也可通过 [ATXP](https://akaxi/ HEE) 访问(OAuth 包裹的 x402、受保护资源元数据,见 RFC 9728)
属于 klymax402
100 个面向 AI 智能体的 x402 微支付 API——一个钱包、Base 上的 USDC、零注册。
完整 API 参考:https://klymax402.com/llms-full.txt
实时工具状态:https://klymax402.com/status
许可证
MIT
This server cannot be installed
Maintenance
Resources
Unclaimed servers have limited discoverability.
Looking for Admin?
If you are the server author, to access and configure the admin panel.
Related MCP Servers
- FlicenseNot gradedqualityCmaintenanceEnables AI agents to access paid content by integrating cryptocurrency payments through the x402 protocol, allowing LLMs to verify payments and retrieve paid resources automatically.1

Pylon MCP Serverofficial
FlicenseNot gradedqualityFmaintenanceProvides 20+ AI agent capabilities like web scraping, PDF parsing, OCR, and more, with pay-per-use micropayments via x402.1- FlicenseNot gradedqualityCmaintenanceEnables AI agents to safely decode and inspect JWT tokens and Base64 payloads in real-time.173
- AlicenseNot gradedqualityCmaintenanceEnables AI agents to audit JSON Web Tokens (JWTs) and other token formats for security vulnerabilities, including HMAC secret cracking, live JWKS verification, and CVE fingerprinting.MIT
Related MCP Connectors
Pay-per-use weather, environment, finance, and on-chain intelligence tools for AI agents via x402.
Payment decisions, durable evidence, x402 resource discovery and live gateway status for AI agents.
Token swaps and honeypot/rug checks for AI agents on 8 chains, paid per-call in USDC via x402.
Latest Blog Posts
- Who's Calling? MCP Hosts Are an Identity Blind Spot (And the Spec Knows It)By Om-Shree-0709 on .mcpAgent IdentityOAuth 2.1
- Your AI Chatbot Just Exposed Your CEO's Salary to an InternBy Om-Shree-0709 on .Agent IdentityMCP SecurityOAuth Delegation
- Why MCP Servers Need Execution Sandboxing (And Why Your Current Stack Isn't Enough)By Om-Shree-0709 on .Agentic AiPrompt InjectionWebAssembly
MCP directory API
We provide all the information about MCP servers via our MCP API.
curl -X GET 'https://glama.ai/api/mcp/v1/servers/Br0ski777/jwt-decoder-x402'
If you have feedback or need assistance with the MCP directory API, please join our Discord server