MCP For Claude Marketplace
Webhook Payload Signature Validator

Webhook Payload Signature Validator MCP Connector for Claude

A+

Validate inbound webhook authenticity using HMAC signature verification and timestamp freshness checks.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner
More Details Connect to Claude

The Webhook Payload Signature Validator provides a secure way to verify the integrity and temporal validity of incoming webhooks. By utilizing tools like identify_signature_scheme, verify_hmac_standard, and verify_hmac_timestamped, you can protect your systems against tampering, replay attacks, and timing analysis. It supports common formats such as GitHub's static signatures and Stripe-style timestamped headers.

webhookhmacsecurityapivalidationgithubstripe

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

verify_hmac_timestamped

" and "v1=...". This prevents replay attacks by checking the timestamp drift. Verify a webhook signature using the timestamped HMAC-SHA256 method

identify_signature_scheme

Useful before attempting verification. Identify the webhook signature verification strategy

verify_hmac_standard

Requires the raw payload and the shared secret. Verify a webhook signature using the standard HMAC-SHA256 method

See how to talk to your AI agent using Webhook Payload Signature Validator.

Identify the scheme for this header: 't=1625097600,v1=abc'

The detected scheme is TIMESTAMPED.

Verify this GitHub webhook payload with secret 'my_secret' and signature '5d41402abc4b2a76b9719d911017c592'.

The signature is valid.

Is this Stripe-style header from 10 minutes ago still valid if my max drift is 5 minutes?

No, the timestamp has expired.

By using `verify_hmac_timestamped`, the system checks if the timestamp in the header is within the allowed drift window.

Related Connectors

Vercel AI SDK Stream Parser

Vercel AI SDK Stream Parser MCP

3 tools Official

Deterministic parser for Vercel AI SDK 3.0 Data Stream protocol chunks.

A+ View details →
Glob Pattern Tester

Glob Pattern Tester MCP

1 tools Official

Test whether a file path matches a glob pattern using the same algorithm used by npm and git. 130M+ weekly downloads.

A+ View details →
Silent Change Detector

Silent Change Detector MCP

3 tools Official

Identifies unauthorized or unrequested code modifications by comparing file state snapshots.

A+ View details →
Outlier Detection Engine

Outlier Detection Engine MCP

1 tools Official

Identify statistical anomalies in massive datasets local using deterministic Z-Score and IQR methods. Stop LLMs from guessing which rows are outliers.

A+ View details →