Vexa
Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.
Beschreibung vom Entwickler (englisches Original)
Use WhatsApp from AI apps through the Kaption extension. OAuth 2.1 relay that cannot read messages.
Diese drei werden nie zu einer Punktzahl zusammengefasst: Meinungen, Messungen und Beliebtheit sind verschiedene Dinge.
Für diesen Server haben wir noch keine Zusammenfassung in einfacher Sprache geschrieben. Unten stehen die Fakten, die wir aus der Registry gelesen haben.
Wähle die KI-App, die du nutzt, und kopiere die Einstellungen.
Du brauchst
Welche App nutzt du?
Wähle oben deine App. Wir merken sie uns, damit der Button beim nächsten Mal „In … installieren“ anzeigt.
Funktioniert in Claude im Web, auf dem Desktop und auf dem Handy:
https://mcp.kaptionai.com/mcpFühre das in deinem Terminal aus
claude mcp add --transport http extension-remote https://mcp.kaptionai.com/mcpIn .cursor/mcp.json in deinem Projekt oder in ~/.cursor/mcp.json einfügen
{
"mcpServers": {
"extension-remote": {
"url": "https://mcp.kaptionai.com/mcp"
}
}
}Dein Browser fragt, ob er die App öffnen darf, dann zeigt die App die Einstellungen und bittet dich um Bestätigung. Schlüsselwerte bleiben leer, damit du sie selbst einträgst.
In .vscode/mcp.json in deinem Projekt einfügen
{
"servers": {
"extension-remote": {
"type": "http",
"url": "https://mcp.kaptionai.com/mcp"
}
}
}Dein Browser fragt, ob er die App öffnen darf, dann zeigt die App die Einstellungen und bittet dich um Bestätigung. Schlüsselwerte bleiben leer, damit du sie selbst einträgst.
ChatGPT verbindet sich nur mit Servern im Internet:
https://mcp.kaptionai.com/mcpMenünamen können sich je nach Tarif und mit der Zeit leicht unterscheiden.
Deine Auswahl bleibt in einem Cookie auf diesem Gerät; kein Konto nötig.
Diese Einstellungen werden aus dem Registry-Eintrag des Entwicklers erzeugt. Wenn in der README etwas anderes steht, folge der README.
Die Tool-Liste dieses Servers haben wir noch nicht gelesen; wir prüfen die Endpunkte reihum.
Wir prüfen Informationen, die jeder sehen kann; den Code haben wir nicht gelesen. Checks, die nicht zutreffen, werden nicht mitgezählt. · Geprüft am 7. Nov. 2026
Der Registry-Name wurde mit dem GitHub-Konto Kaption-AI bestätigt, dem das Repo gehört
Dieses Repo haben wir noch nicht von GitHub gelesen
Dieses Repo haben wir noch nicht von GitHub gelesen
Noch nicht geprüft; wir prüfen die Endpunkte reihum
Noch nicht geprüft; wir prüfen die Endpunkte reihum
Noch nicht geprüft; wir lesen die Tool-Liste, wenn wir den Endpunkt prüfen
Verglichen mit allen aktiven Servern dieser Kategorie in der Registry. Sterne zählen nur, wenn dem Herausgeber das Repo gehört.
Er hat 1 von 1 zutreffenden Basischecks bestanden. Den Code haben wir nicht gelesen. Bevor du einen Schlüssel oder Token hinzufügst, sieh nach, welche Zugriffe der Server verlangt, und nutze einen Schlüssel, der nur die Berechtigungen hat, die du brauchst.
Die Registry nennt keinen erforderlichen Schlüssel, manche Server bitten dich aber bei der ersten Nutzung, dich anzumelden.
Er läuft in der Cloud des Entwicklers. Du verbindest dich übers Internet, ohne etwas zu installieren, aber was du sendest, läuft über die Server des Entwicklers.
Das GitHub-Repo wurde zuletzt – geändert, und die neueste Version (1.0.0) kam vor 33 Tagen in die Registry.
Apps, die MCP unterstützen, etwa Claude Desktop, Claude Code, Cursor und VS Code. Er verbindet sich per URL, also funktionieren auch Apps, die Remote-MCP-Server akzeptieren, zum Beispiel ChatGPT im Entwicklermodus.
In derselben Kategorie: Vexa, emailmd, MCP WhatsApp Cloud
Server derselben Kategorie von anderen Entwicklern, sortiert nach Sternen.
So liest du eine Karte:★ GitHub-SterneiDrei Säulen: Bewertungen · Checks · NutzungiAktualisiert = neueste Version in der Registry veröffentlichti
Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.
Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API
Unverändert aus dem Repo des Entwicklers übernommen. PopNx MCP hat den Inhalt weder geprüft noch empfiehlt es ihn. HTML, Bilder und Skripte wurden entfernt. Links führen von dieser Website weg.
Cloud MCP relay for WhatsApp — lets AI assistants (Claude, ChatGPT, Cursor, etc.) interact with your WhatsApp conversations through the Model Context Protocol.
Setup guide: kaptionai.com/mcp — connect WhatsApp to Claude, ChatGPT or Cursor.
Live at: mcp.kaptionai.com (canonical) and mcp-ext.kaptionai.com (backward-compatible alias for existing connections)
The relay cannot read your messages. It forwards MCP tool calls between the AI client and the Kaption browser extension, which processes everything locally in your browser. Its source code is public (BUSL-1.1), so you can verify it yourself.
AI Client (Claude/ChatGPT/Cursor)
│ │ OAuth 2.1 + SSE/Streamable HTTP ▼ ┌─────────────────────────────────────┐ │ Cloudflare Worker │ │ mcp.kaptionai.com │ │ │ │ ┌────────────┐ ┌──────────────┐ │ │ │ OAuthProv │ │ Next.js │ │ │ │ /sse /mcp │ │ /authorize │ │ │ │ /token │ │ /ext-auth │ │ │ │ /register │ │ / (landing) │ │ │ └─────┬──────┘ └──────────────┘ │ │ │ │ │ ┌─────▼──────┐ ┌──────────────┐ │ │ │ RelayMCP │ │ Deployment │ │ │ │ (DO) │ │ ChainDO │ │ │ └─────┬──────┘ └──────────────┘ │ │ │ │ │ ┌─────▼──────┐ │ │ │ RelayRoom │ ◄── WebSocket ──┐ │ │ │ (DO/accountRef) │ │ │ │ └────────────┘ │ │ └─────────────────────────────────┼──┘ │ Browser Extension (WhatsApp Web tab)
| DO | Keyed By | Purpose |
|---|---|---|
| RelayMCP | OAuth session | McpAgent — registers tools, relays JSON-RPC to RelayRoom |
| RelayRoom | Opaque accountRef | WebSocket bridge to extension, auth handshake, request/response matching |
| DeploymentChainDO | "main" | Append-only hash chain for deployment transparency |
/.well-known/oauth-authorization-serverPOST /register (RFC 7591)/authorize/token/sse) or Streamable HTTP (/mcp)| Path | Method | Auth | Handler |
|---|---|---|---|
/ | GET | — | Next.js landing page |
/authorize | GET | — | Next.js OTP form (HMAC-signed oauthReqInfo) |
/authorize/send-otp | POST | — | Next.js API route → rest-api |
/authorize/verify | GET/POST | — | Next.js OTP verify → OAuthProvider completeAuthorization |
/authorize/reviewer-login | POST | Static review credentials | Password completion for the configured synthetic review phone |
/register | POST | — | OAuthProvider (RFC 7591 dynamic client registration) |
/token | POST | — | OAuthProvider (token exchange) |
/sse | GET | OAuth token | RelayMCP DO (SSE transport) |
/mcp | POST | OAuth token | RelayMCP DO (Streamable HTTP) |
/ws/ext | GET | JWT/token in auth msg | RelayRoom DO (WebSocket upgrade) |
/ext-auth/* | Various | — | Next.js extension auth pages + API |
/transparency | GET | — | DeploymentChainDO (chain history) |
/transparency/latest | GET | — | DeploymentChainDO (latest entry) |
/transparency/verify | GET | — | DeploymentChainDO (chain integrity) |
/transparency/gaps | GET | CF token | Cross-reference CF deploys with chain |
/transparency/append | POST | DEPLOY_API_KEY | Append entry (CI only) |
26 public tools are forwarded to the extension (the relay does not execute them). Reads and writes are separate tools: every read-only tool carries readOnlyHint: true, and the manage_* tools only write. The read tools for reminders, scheduled messages, chat lists and contact notes reach the extension as the matching manage_* call (TOOL_ROUTES in src/tools.ts), so every Kaption version answers them.
| Tool | Kind | Description |
|---|---|---|
query | read | Query conversations, contacts, messages, transcriptions, labels, communities, sessions |
summarize_conversation | write (private cache) | Get or generate a conversation summary |
download_media | read | Download image/video/audio/document from a message |
list_contacts, get_contact, get_contact_groups | read | Read contacts and their group memberships |
list_groups, get_group | read | Read cached or live group metadata |
export_contacts | read | Export contacts as CSV or JSON |
get_analytics | read | Analyze WhatsApp activity, rankings, response times, and exports |
call_recordings | read | List, read and search call recordings and transcripts |
list_reminders, get_reminder | read | Read personal reminders |
list_scheduled_messages, get_scheduled_message | read | Read scheduled messages (both modes) |
list_chat_lists, get_chat_list | read | Read personal chat lists |
get_contact_note | read | Read a contact's note (Business accounts) |
manage_labels | write | Add/remove/create/delete WhatsApp Business labels |
manage_notes | write | Set a contact's note (Business accounts) |
manage_chat | write | Archive, pin, mute, mark read/unread, set/clear draft |
manage_reminders | write | Create/update/complete/delete personal reminders |
manage_scheduled_messages | write | Schedule, change or cancel messages — from Kaption's number (bot, default) or from your own number on this computer (mode: "local", also to groups) |
manage_lists | write | Create/edit/delete personal chat lists and their chats |
send_message | write | Queue a message from your own number (needs sending from this computer turned on and consent in Kaption) |
create_attachment_upload | write | One-time upload slot for an attachment to send or schedule |
The square brand icon for directory listings and consent screens is served at /brand/kaption-mcp-icon.svg.
get_api_info is local-only and is deliberately excluded from the cloud surface because it returns private REST connection credentials.
Every deployment is cryptographically signed and recorded in a tamper-evident transparency chain. See SECURITY.md for full details.
GitHub Actions (push to main)
│ ├─ 1. Run tests ├─ 2. Build worker (OpenNext + wrap) ├─ 3. SHA-256 manifest every generated code and asset file ├─ 4. Pre-deploy: Sigstore sign the manifest → Rekor log ├─ 5. Deploy to Cloudflare ├─ 6. Post-deploy: verify hash unchanged, sign attestation → Rekor └─ 7. Append to transparency chain (hash-linked)
Daily heartbeat redeploys (6am UTC) ensure the chain stays active even without code changes.
wrangler deploy locallyAll production deploys go through GitHub Actions. Multiple layers enforce this:
wrangler.jsonc is gitignored; scripts/build-config.mjs renders it from wrangler.template.jsonc and refuses to run unless GITHUB_ACTIONS=true + GITHUB_RUN_ID are set (or KAPTIONAI_LOCAL_DEV=1 for dev).npm run predeploy aborts unless those same CI env vars are present.main is branch-protected: requires a reviewed PR + green test, deploy, and verify checks.To ship a change: open a PR → review + CI green → merge to main → Actions builds, signs (Sigstore), deploys, and appends to the transparency chain. npx wrangler deploy from a laptop will fail at step 1 because there is no wrangler.jsonc to deploy.
# 1. Check the transparency chain
curl -s https://mcp.kaptionai.com/transparency/latest | jq .
curl -s https://mcp.kaptionai.com/transparency/verify | jq .
COMMIT=$(curl -s https://mcp.kaptionai.com/transparency/latest | jq -r '.event.commitSha') cosign verify-blob \ --bundle build-manifest.sigstore.json \ --certificate-identity-regexp "https://github.com/Kaption-AI/mcp-extension-remote/.*" \ --certificate-oidc-issuer "https://token.actions.githubusercontent.com" \ build-manifest.json
# Full chain history (paginated)
GET /transparency?limit=50&offset=0
GET /transparency/latest
GET /transparency/verify
# SSE transport (for Claude Code, Cursor)
GET /sse
POST /mcp
# Install dependencies
npm install
npm test
npm run dev
npm run build:worker
src/
index.ts # Worker entry — Hono routing, OAuthProvider composition relay-mcp.ts # RelayMCP Durable Object (McpAgent) relay-room.ts # RelayRoom Durable Object (WebSocket bridge) deployment-chain.ts # DeploymentChainDO (transparency log) otp.ts # OTP generation, verification, JWT, HMAC, rate limiting schemas.ts # Zod schemas for API request validation tools.ts # MCP tool definitions (forwarded, not executed) types.ts # TypeScript interfaces (Env, DeploymentEvent, etc.) app/ page.tsx # Landing page (multilingual, client-side i18n) layout.tsx # Root layout i18n.ts # i18next init (8 languages) locales/ # Translation JSON files authorize/ # OAuth OTP flow pages + API routes ext-auth/ # Extension auth pages + API routes scripts/ wrap-worker.mjs # Post-build: wraps OpenNext output with custom routing
| Variable | Description |
|---|---|
INTERNAL_API_BASE_URL | Backend API base URL |
BUILD_HASH | SHA-256 of worker bundle (set by CI) |
COMMIT_SHA | Git commit SHA (set by CI) |
wrangler secret put)| Secret | Description |
|---|---|
INTERNAL_API_KEY | API key for rest-api OTP endpoint |
DEPLOY_API_KEY | API key for transparency chain append |
JWT_SECRET | Shared JWT signing secret (same as rest-api, schedule, metadata workers) |
PHONE_REF_SECRET | HMAC secret used to derive opaque durable account references from phone numbers |
EPHEMERAL_STATE_SECRET | Encryption secret for short-lived login hints, verify tickets, and encrypted session phone payloads |
OPENAI_APPS_CHALLENGE_TOKEN | Exact domain-verification token issued by the OpenAI plugin portal |
OPENAI_REVIEW_PASSWORD_SHA256 | Lowercase SHA-256 hex digest of the high-entropy reviewer password |
OPENAI_REVIEW_PHONE | Phone number used as the dedicated review username and to derive the synthetic account's opaque reference |
The three OPENAI_* values are also configured as GitHub Actions repository secrets. Add all three together, then run the manual Test, Build & Deploy workflow. CI writes them to an ephemeral mode-0600 file and passes that file to wrangler deploy --secrets-file, so the review configuration ships in the same signed, attested Worker version as the code. The workflow fails closed if only part of the three-value set is present and deletes the temporary file immediately after deployment. Existing Worker
Nur der Anfang wird gezeigt; den Rest findest du im Repo