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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use Webhook HMAC Signature Validator with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Verify the authenticity of incoming webhook payloads by validating their HMAC signatures.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 3 capabilities

The complete Webhook HMAC Signature Validator capability set.

These are the exact actions your AI can choose when you ask it to work with Webhook HMAC Signature Validator.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through Webhook HMAC Signature Validator.

  1. 01

    Decompose header string

    G., "sha256=abc...") and need to extract the components. Decompose a webhook header into algorithm and signature

  2. 02

    Validate webhook signature

    Validate a webhook payload against a signature and secret

  3. 03

    Fetch provider secrets

    Fetch stored secrets for a specific provider

Observed, not estimated

557ms average. Fast in production.

Webhook HMAC Signature Validator is checked daily against the live service.

Daily averagePeak 631ms
Aug 20Today
Fastest day
472ms
Slowest day
631ms
14-day trend
Slowing+34%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Webhook HMAC Signature Validator, so you can see the experience inside your AI.

It does not authenticate your account with Webhook HMAC Signature Validator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Webhook HMAC Signature Validator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_xPZ3wDA8MunYTLaZxvR2W0qB7HP0Vq96q1BCo8n5/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Webhook HMAC Signature Validator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "webhook-hmac-signature-validator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_xPZ3wDA8MunYTLaZxvR2W0qB7HP0Vq96q1BCo8n5/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions Webhook HMAC Signature Validator owners ask.

  • 01

    How does the validation process work?

    The validate_webhook_signature capability computes an HMAC-SHA256 hash of the provided payload body using your secret key. It then compares this computed signature against the one found in your request header using a constant-time comparison to prevent timing attacks.

  • 02

    Can I use this for Stripe or PayPal webhooks?

    Yes. You can use fetch_provider_secrets to retrieve the configured keys for providers like Stripe or PayPal, and then use those keys with the validation capability.

  • 03

    What is the purpose of decompose_header_string?

    It helps you split a raw header (like 'sha256=abc...') into its constituent parts: the algorithm name and the actual signature string.

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