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Changelog

Web v0.19.1CLI v1.1.0SDK v1.4.0MCP v1.3.0
Web Appv0.19.1

Guest Dashboard SEO Overhaul

  • •Fixed layout bug on /go where hero copy rendered above the navbar
  • •Added feature cards flanking the Send Your First Webhook widget — mock responses, signature verification, CLI tunnel, SDK testing, MCP, and search/replay — visible without scrolling on xl+ screens
  • •Expanded server-rendered SEO content (14 internal doc links, 12 headings, 751 words, BreadcrumbList + FAQPage schemas, hreflang alternates)
  • •Promoted the page h1 to a visible subtitle inside the nav on md+ screens
CLIv1.1.0

Signature Verification

  • •Tunnel forwards X-Signature-Verified, X-Signature-Provider, and X-Signature-Error headers
  • •Listen shows inline verification status (checkmark/cross) per request
  • •Create supports --signing-provider and --signing-secret flags (or WHK_SIGNING_SECRET env var)
SDKv1.4.0

Signature Verification Matchers

  • •matchVerified() and matchUnverified() matchers for signature verification assertions
  • •signatureVerified, signatureError, and signingProvider fields on Request and Endpoint types
MCPv1.3.0

Signature Verification Tools

  • •Signing config (provider + secret) on create_endpoint and update_endpoint
  • •verify_signature tool returns stored server-side results with skipped detection
  • •Discord publicKey support for Ed25519 verification
Web Appv0.19.0

Signature Verification

  • •Server-side webhook signature verification for 13 providers — configure once per endpoint, every request verified automatically
  • •New Signature tab in request detail: paste a secret for instant client-side verification, or view stored server-side results with detailed error diagnostics
  • •Verification badges (shield icons) in the request list and summary bar for at-a-glance valid/invalid status
  • •Signing configuration section in endpoint settings: provider dropdown, encrypted secret storage, provider-specific tips
  • •SDK: matchVerified() and matchUnverified() matchers for test assertions
  • •MCP: verify_signature returns stored results without needing a secret; create/update endpoints with signing config
  • •CLI: X-Signature-Verified headers on tunnel, verification status in listen output, --signing-provider/--signing-secret on create
Web Appv0.18.3

Blog Resilience & Housekeeping

  • •Blog pages gracefully fall back when Supabase is unreachable instead of erroring
  • •Added SECURITY.md and CODE_OF_CONDUCT.md for open-source governance
Web Appv0.18.2

SDK v1.3.0 & MCP v1.2.0 Release

  • •Updated llms.txt and llms-full.txt with conditional response rules documentation
  • •SDK and MCP version bumps for response rules and provider consolidation
Web Appv0.18.1

Blog Page Redesign

  • •Redesigned blog index with clear visual hierarchy: featured post, two latest cards, and a scannable list for all posts
  • •Compact page header replacing the bulky hero section
  • •Fixed blog posts not appearing after publish due to stale Next.js fetch cache
Web Appv0.18.0

Conditional Response Rules

  • •Define ordered response rules that match on method, path, headers, or body — first match wins
  • •Visual response rules editor in endpoint settings with drag-to-reorder
  • •Rules evaluated in the Rust receiver for low-latency conditional responses
  • •Full SDK, MCP, and API support for managing response rules
SDKv1.3.0

Response Rules & Provider Consolidation

  • •ResponseRule and ResponseRuleCondition types for conditional mock responses
  • •validateResponseRules() and validation constants exported for shared use
  • •TEMPLATE_PROVIDERS, VERIFY_PROVIDERS, and buildTemplateSendOptions exports — single source of truth for provider logic
  • •Notification URL support in create/update endpoint options
  • •Raw body replay with byte-exact fidelity (base64-decoded bodyRaw)
MCPv1.2.0

Response Rules & Notifications

  • •Response rules support in create_endpoint and update_endpoint tools
  • •Notification URL parameter for endpoint creation and updates
  • •Provider lists imported from SDK — single source of truth
Web Appv0.17.4

SEO & Accessibility Improvements

  • •Custom 404 page, OG image optimization (PNG→JPG), and improved sitemap generation
  • •Comprehensive structured data (JSON-LD) and meta tag improvements across all pages
  • •LLMs-full.txt for AI agent discoverability
Web Appv0.17.3

Configurable Limits & Security Hardening

  • •Endpoint creation rate limits, ephemeral caps, and receiver body size now configurable via env vars
  • •Stored XSS regression test suite for endpoint names, mock responses, and request data
Web Appv0.17.2

Teams Module Refactor

  • •Atomic team invite acceptance with member limit enforcement (max 25)
  • •Split teams module into focused sub-modules for better maintainability
Web Appv0.17.1

Consolidated Provider Logic

  • •Unified webhook provider lists, signing, and payload generation via SDK — single source of truth
  • •Added standard-webhooks provider to Send Webhook dialog (fixes drift from SDK/MCP)
  • •Shared mock response validation across endpoint routes using SDK constants
Web Appv0.17.0

Redis-Backed Rate Limiting

  • •Distributed rate limiting via Redis sliding window for all API routes
  • •Receiver notification deduplication backed by Redis
  • •Graceful fallback to in-memory rate limiting when Redis is unavailable
Web Appv0.16.0

Raw Body Fidelity & Search Performance

  • •Raw body storage for non-UTF-8 payloads preserves byte-exact fidelity
  • •Trigram-indexed full-text search across request path, body, and headers
  • •Improved SSE streaming with raw body support
  • •SDK version drift fix and accurate Retry-After headers
Web Appv0.15.0

Notification Webhooks

  • •Configure a notification URL on any endpoint to receive POST alerts when webhooks are captured
  • •Supports Slack, Discord, Microsoft Teams, and any webhook-compatible service
  • •Notification URL management in endpoint settings and via API/SDK/MCP
  • •New docs page for notification webhooks
Web Appv0.14.1

API Key Deletion Confirmation

  • •Added confirmation dialog before deleting API keys to prevent accidental revocation
CLIv1.0.0

Rust Rewrite

  • •Complete rewrite from Go to Rust for faster startup and smaller binaries
  • •Full feature parity: tunnel, listen, auth, endpoints, requests, replay, send, update
  • •Interactive TUI with ratatui (search, endpoint detail, request viewer)
  • •Request search and filtering in TUI
  • •Send webhooks with provider template signing from TUI
Web Appv0.14.0

API Explorer & Rate Limiting

  • •Interactive API explorer at /api-explorer powered by Scalar
  • •OpenAPI 3.1.0 specification at /openapi.yaml
  • •Improved rate limiting with sliding window and informational headers
  • •SDK error messages now include rate limit details and Retry-After hints
SDKv1.2.1

Rate Limit Metadata

  • •RateLimitError now includes limit, remaining, and reset fields
  • •New RateLimitMeta type export
Web Appv0.13.1

Pricing Copy Updates

  • •Updated pricing copy across comparison pages and docs
  • •Teams highlighted as Pro-exclusive feature
Web Appv0.13.0

Teams

  • •Create and manage teams with invite-based membership
  • •Share endpoints with team members
  • •Team roles: owner and member with scoped permissions
  • •Endpoint switcher shows personal and team endpoints
  • •Teams documentation page
CLIv0.6.0

Teams Support

  • •Endpoint list shows owned and team-shared endpoints
  • •TeamShare metadata in endpoint responses
SDKv1.2.0

Teams Support

  • •TeamShare type for endpoint team metadata
  • •Endpoint type includes sharedWith and fromTeam fields
Web Appv0.12.1

Comparison Pages Expansion

  • •New comparison pages: Hookdeck, localtunnel, RequestBin, Smee
  • •Redesigned Beeceptor, ngrok, and Webhook.site comparison pages
  • •Shared comparison CTA component
Web Appv0.12.0

Request Debugging Tools

  • •Pin requests to keep them visible across endpoint switches
  • •Add notes to captured requests (stored locally)
  • •Side-by-side request diff comparison
  • •Visual request timeline view
  • •Interactive dashboard guide
  • •Dashboard features documentation page
Web Appv0.11.0

Dashboard Improvements

  • •Keyboard shortcuts for dashboard navigation
  • •Collapsible JSON tree viewer for request bodies
  • •JSON to TypeScript type generation
  • •Resizable split pane in request viewer
  • •Richer request list rows with method badges and size
Web Appv0.10.1

Case-Insensitive Slugs

  • •Endpoint slugs are now case-insensitive (e.g. /w/AbC and /w/abc resolve to the same endpoint)
Web Appv0.10.0

Conversion Funnel & Live Preview

  • •Live webhook preview on landing page
  • •Getting started guide for new users
  • •Claim ephemeral endpoints after signing in
  • •Site stats social proof on landing page
  • •Pricing CTA and docs CTA components
  • •Redesigned hero and navigation
Web Appv0.9.3

Docs Expansion

  • •REST API reference documentation page
  • •Plans & limits documentation page
  • •Webhook.site vs webhooks.cc comparison page
  • •Docs navigation restructure and consistency improvements
Web Appv0.9.2

Changelog & Version Display

  • •Public changelog page at /changelog with track filtering
  • •Version display on account page
  • •Deep health check endpoint for AppSignal uptime monitoring
  • •Forward user IP on test webhook sends
  • •Status page link in footer
Web Appv0.9.1

Provider Templates & Mock Response Delay

  • •Add SendGrid, Clerk, Discord, Vercel, GitLab provider templates (12 total)
  • •Configurable response delay for mock responses (0-30s)
  • •Comprehensive analytics tracking for request and endpoint operations
  • •New provider template reference documentation page
SDKv1.1.0

New Provider Templates

  • •Add SendGrid, Clerk, Discord, Vercel, GitLab provider templates
  • •Detection helpers: isSendGridWebhook, isClerkWebhook, isVercelWebhook, isGitLabWebhook
  • •Signature verification: verifyClerkSignature, verifyVercelSignature, verifyGitLabSignature
  • •Mock response delay field
MCPv1.1.0

New Provider Templates

  • •Add SendGrid, Clerk, Discord, Vercel, GitLab to template and verify providers
  • •Mock response delay support
Web Appv0.9.0

AppSignal & Next.js 16 Proxy

  • •Replace Sentry with AppSignal for EU data residency compliance
  • •OpenTelemetry tracing pipeline for Rust receiver
  • •Migrate Next.js middleware.ts to proxy.ts (Next.js 16)
  • •Proxy test webhook sends through server-side API route
CLIv0.5.3

Tunnel Base Path & TUI Fixes

  • •Support base path in tunnel target (e.g. whk tunnel 8080/api/webhooks)
  • •Fix TUI tunnel input swallowing shortcut-bound keys
CLIv0.5.2

Custom Headers

  • •Add -H/--header flag for injecting custom headers in tunnel forwarding
SDKv1.0.1

Proxy & Delay

  • •Mock response delay field support
  • •Minor type and documentation fixes
MCPv1.0.1

Delay & Fixes

  • •Mock response delay support in update_endpoint tool
  • •Minor schema fixes
Web Appv0.8.0

Docs Overhaul

  • •14 new documentation pages with MDX pipeline
  • •Standard Webhooks provider and sendTo method
  • •Dynamic blog system with API publishing
  • •PostHog analytics integration
  • •Receiver file logging with daily rotation
  • •Adjusted tier quotas (guest 25/12hrs, free 50/day, pro 100K/month)
SDKv1.0.0

Stable API

  • •WebhookFlowBuilder for multi-step test scenarios
  • •Request export (JSON, HAR) and clear methods
  • •Full-text search and count queries
MCPv1.0.0

Stable API

  • •Standard Webhooks provider support
  • •Batch endpoint create/delete tools
  • •Request export, search, and clear tools
  • •Setup commands for Cursor, VS Code, Windsurf, Claude Desktop, Codex
SDKv0.6.0

Build Request & Fixes

  • •buildRequest method for constructing signed webhook requests
  • •Fix raw secret detection for Standard Webhooks
  • •Request diffing (diffRequests)
SDKv0.5.0

Standard Webhooks & sendTo

  • •Standard Webhooks provider and sendTo method
  • •matchContentType, matchQueryParam, matchBodySubset matchers
  • •Provider template sending with signed headers
MCPv0.3.0

Signature & Templates

  • •verify_signature tool for 9 providers
  • •send_webhook with provider template signing
  • •compare_requests and extract_from_request tools
Web Appv0.7.4

SEO & Navigation Refresh

  • •Refresh site metadata and navigation layout
  • •Fix sitemap response content
Web Appv0.7.3

Webhook Templates & Retention

  • •Signed webhook templates (Stripe, GitHub, Shopify, Twilio, Slack, Paddle, Linear)
  • •Request retention policy improvements
  • •Homepage comparison section
SDKv0.4.0

Signature Verification

  • •verifySignature for Stripe, GitHub, Shopify, Twilio, Slack, Paddle, Linear
  • •Webhook templates with realistic payloads
MCPv0.2.0

Webhook Templates

  • •Provider template support in send_webhook
  • •list_provider_templates tool
CLIv0.5.1

Replay & Ephemeral

  • •Add whk replay command to resend captured requests
  • •Add --ephemeral flag for auto-deleting tunnel endpoints
Web Appv0.7.2

SEO & Search

  • •Structured data (JSON-LD), FAQ section, breadcrumbs
  • •Add llms.txt for AI discovery
  • •Full-text search across request body, headers, and path
  • •Paginated request history with retention policies
SDKv0.3.0

SSE Streaming

  • •subscribe() SSE async iterator for real-time streaming
  • •describe() introspection for AI agents
MCPv0.1.0

Initial Release

  • •11 tools: create/list/get/update/delete endpoints, list/get requests, send/wait/replay, describe
  • •stdio transport via @modelcontextprotocol/sdk
  • •Setup CLI for Cursor, VS Code, Windsurf, Claude Desktop
Web Appv0.7.0

Rust Receiver & CLI TUI

  • •Rewrite webhook receiver from Go to Rust (Axum + sqlx + Tokio)
  • •Optimize database with stored procedures (capture_webhook())
  • •Guest live dashboard for unauthenticated users
  • •Strict quota enforcement for all endpoint types
CLIv0.5.0

TUI Mode

  • •Interactive TUI with menu, auth, endpoint listing, and request detail views
  • •Real-time SSE subscriptions in TUI
Web Appv0.6.0

Production Hardening

  • •Six phases of production hardening (abuse protection, CSP, rate limiting)
  • •Integration test suite (42 test cases)
  • •SEO metadata, sitemap improvements, crawler exclusions
CLIv0.4.0

Device Auth

  • •Browser-based device authentication flow
  • •whk update self-update with SHA256 verification
SDKv0.2.0

Matchers & Helpers

  • •Composable request matchers (matchMethod, matchHeader, matchBodyPath, matchAll, matchAny)
  • •Provider detection helpers (isStripeWebhook, isGitHubWebhook, etc.)
  • •parseJsonBody, parseFormBody, extractJsonField helpers
Web Appv0.5.0

Security & Docs

  • •Security hardening across backend, API routes, and CLI
  • •Floating navbar, sidebar, and docs improvements
CLIv0.3.0

Cosign Signing

  • •Cosign keyless signing for release binaries
SDKv0.1.0

Initial Release

  • •Endpoint CRUD (create, get, list, delete, update)
  • •Request list, waitFor with timeout and polling
  • •Replay captured requests to any URL
  • •Human-readable duration strings (30s, 5m)
Web Appv0.4.0

Public Pages

  • •Installation page with copy-paste commands
  • •Privacy policy and terms of service pages
  • •XML sitemap generation
CLIv0.2.0

Initial Release

  • •whk tunnel for forwarding webhooks to localhost
  • •whk listen for streaming requests to terminal
  • •whk create, list, delete for endpoint management
Web Appv0.3.0

Billing & Polish

  • •Polar.sh subscription management (free/pro tiers)
  • •Request batching and endpoint caching for high-throughput
  • •Dashboard UI improvements (empty states, layout fixes)
Web Appv0.2.0

CI/CD & Code Quality

  • •CI pipeline with lint, typecheck, build, and test stages
  • •Dependabot and CodeQL security scanning
  • •Input validation, CSP, and rate limiting
Web Appv0.1.0

Initial Release

  • •Dashboard with webhook capture and real-time inspection
  • •GitHub and Google OAuth authentication
  • •Basic endpoint CRUD and request viewer