Sinch Build for Codex
ChatGPT pluginBuild with Sinch Docs & Skills
Bundles the Sinch Build skills catalog with the hosted Sinch Docs MCP server. Codex can search authoritative Sinch developer documentation and follow product guides for Conversation API (SMS, RCS, WhatsApp), Voice, Verification, Numbers, Number Lookup, 10DLC, Elastic SIP Trunking, Fax, Mailgun, Provisioning, and Authentication. Documentation search requires no credentials. Optional bundled scripts can call live Sinch APIs, such as sending a test message or managing webhooks, using your own Sinch credentials and only with your approval; these calls may incur charges.
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Developer tools638th of 742 by placement
| # | Plugin | Position | 7d |
|---|---|---|---|
| 636 | #7216 | — | |
| 637 | #7226 | 284places down | |
| 638 | #7245 | — | |
| 639 | #7248 | — | |
| 640 | #7249 | 141places down |
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Example prompts
- “Build an RCS rich card with images, buttons, and SMS fallback using the Sinch Conversation API.”
- “Build an IVR phone menu with Sinch that routes callers to sales or support.”
- “Help me add SMS OTP phone number verification to my app using Sinch”
Skills
sinch-10dlc
Registers US 10DLC brands and campaigns with Sinch for A2P SMS messaging. Use when the user needs to register a brand, create a 10DLC campaign, check registration status, troubleshoot a 10DLC rejection, fix an EIN mismatch, upgrade from simplified to full registration, or qualify a campaign for US SMS sending on 10-digit long codes. Do NOT use for non-US messaging or toll-free/short code registration.
sinch-authentication
Configures Sinch API credentials and authentication. Use when setting up OAuth2, Basic auth, application signing, or API keys for any Sinch product including Conversation API, Voice, Verification, Numbers, Fax, and Mailgun. Also use when troubleshooting 401 Unauthorized, 403 Forbidden, invalid signature, or credential errors against any Sinch API. For SDKs usage, see sinch-sdks.
sinch-cli
Terminal commands for the Sinch CLI (`sinch`, npm `@sinch/cli`). Use whenever the user runs or asks about a `sinch` command: login, Functions init/dev/deploy/logs/status, phone numbers and porting, sending SMS/WhatsApp/RCS, placing calls and configuring voice services, fax, SIP trunks, secrets and templates. Runtime code is covered by sinch-functions-node and sinch-functions-dotnet.
sinch-conversation-api
Sends and receives omnichannel messages via the Sinch Conversation API across SMS, MMS, RCS, WhatsApp, Viber, Facebook Messenger, Instagram, Telegram, KakaoTalk, LINE, and WeChat. Covers the API layer: apps, contacts, conversations, processing modes, message types, webhooks and callbacks, templates, batch sending, channel fallback, and transcoding. Use when building or modifying a Sinch messaging integration, handling inbound messages or delivery receipts via webhooks, sending multi-channel or batch messages, or managing Conversation API apps, contacts, and webhooks. For channel-specific guidance, use the sinch-sms, sinch-mms, sinch-rcs, or sinch-whatsapp skills.
sinch-elastic-sip-trunking
Provisions SIP trunks, endpoints, ACLs, credential lists, and phone numbers via the Sinch Elastic SIP Trunking REST API. Use when the user needs SIP connectivity, trunk provisioning, inbound/outbound PSTN voice routing, PBX integration, or SIP-to-PSTN bridging.
sinch-fax-api
Send and receive faxes programmatically with Sinch Fax API. Use when building fax workflows, fax-to-email delivery, sending PDFs by fax, checking fax status, managing fax services, configuring cover pages, receiving fax webhooks, or integrating fax into healthcare, legal, or financial applications.
sinch-functions
Sinch Functions, the beta serverless platform for voice, SMS and conversation apps. Use for platform questions: what it is, how deployment works, choosing Node.js or C#, install and auth, FunctionContext, handlers, the Voice v2 call lifecycle and `call.*` events, voice services and `VOICE_SERVICE_ID`, and SVAML. Runtime code lives in sinch-functions-node and sinch-functions-dotnet.
sinch-functions-dotnet
Write C#/.NET Sinch Functions with the `Sinch.Functions.Runtime` NuGet package. Use when writing or editing a function controller: answering and controlling calls with Voice API v2, IVR menus, placing, bridging or transferring calls, realtime AI voice agents, SMS/WhatsApp/RCS webhooks, custom HTTP endpoints, dependency injection, cache/storage/database and authorization. Run and deploy with the sinch-cli skill.
sinch-functions-node
Write Node.js/TypeScript Sinch Functions with `@sinch/functions-runtime`. Use when writing or editing `function.ts`: answering and controlling calls with Voice API v2, IVR menus, placing or bridging calls, SMS/WhatsApp/RCS webhooks, custom HTTP endpoints, cache/storage/database, auth and `setup()` hooks. Run and deploy with the sinch-cli skill.
sinch-help
Show an overview of the Sinch Build product guides and documentation search available in this plugin
sinch-imported-numbers-hosting-orders
Import, host, qualify, and text-enable phone numbers for Sinch SMS using the Imported Numbers and Hosting Orders API. Use when importing non-Sinch numbers as DCA, creating hosting orders, qualifying numbers for text-enablement, managing LOA workflows, or checking hosting order status.
sinch-in-app-calling
Integrate Sinch In-App Voice and Video SDK for real-time calling in Android, iOS, or JavaScript apps. Use when the user mentions In-App Calling, VoIP integration, WebRTC with Sinch, app-to-phone calling, video calling, or building voice/video features in a mobile or web app.
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sinch-mailgun
Sends, receives, and tracks email via the Mailgun (Sinch) API. Use when the user wants to send email, manage domains, configure webhooks, query email events/logs, manage templates, handle suppressions (bounces, unsubscribes, complaints), set up inbound routes, manage mailing lists, DKIM keys, or IP warmup using Mailgun.
sinch-mailgun-inspect
Checks email quality before sending via Mailgun Inspect API. Use when previewing emails across clients, checking accessibility (WCAG), validating links, validating images, or analyzing email HTML/CSS compatibility.
sinch-mailgun-optimize
Monitors email deliverability via Mailgun Optimize (InboxReady) API. Use when the user wants to test inbox placement with seed lists, monitor IP or domain blocklists, track spam traps, check email health scores, review DMARC reports, or pull Google Postmaster or Microsoft SNDS data. Also use when emails are going to spam, sender reputation is dropping, inbox rate is declining, a domain needs warmup monitoring, an IP needs blocklist removal, or the user wants to set up email deliverability monitoring.
sinch-mailgun-validate
Build with Mailgun Validate API for email verification and list hygiene. Use when validating email addresses, checking email deliverability, running bulk validation jobs, previewing list health, or cleaning an email list.
sinch-mms
Sends MMS multimedia messages (images, video, audio, PDFs, vCards) via the MMS channel of the Sinch Conversation API. Available in the United States, Canada, and Australia only. Covers supported media types, file size limits, MMS channel properties, and transcoding behavior. Use when sending an MMS or picture message, sending media to US/CA/AU numbers over MMS, or debugging MMS media rejection and size issues.
sinch-number-lookup-api
Looks up phone number details via Sinch Number Lookup API. Use when checking carrier, line type, porting status, SIM swap, VoIP detection, or reassigned number detection (RND) for fraud prevention or routing decisions.
sinch-number-order-api
Guides the multi-step Number Order workflow for purchasing phone numbers with KYC compliance via the Sinch Numbers API. Use when buying, ordering, provisioning, or activating Sinch numbers in countries that require KYC registration, regulatory compliance, or identity verification. Triggers on "number order", "KYC", "number registration", "phone number purchase", or "number provisioning".
sinch-numbers-api
Search, manage, and release phone numbers with the Sinch Numbers API, and route new purchases to the Number Order API. Use when listing active numbers, searching available numbers, releasing numbers, updating number configuration (SMS/voice/callback), managing emergency addresses, checking available regions, or maintaining legacy rent integrations.
sinch-porting-api
Port phone numbers from other carriers into Sinch with the Porting API. Automates port-in order creation, portability checks, order tracking, on-demand activation, and webhook notifications. Use when porting numbers, checking portability, creating port-in orders, tracking port status, activating ported numbers, uploading LOA documents, or configuring porting defaults.
sinch-provisioning-api
Provisions and manages channel resources for Conversation API projects, including WhatsApp accounts/senders/templates, RCS senders, KakaoTalk senders/templates, webhooks, and bundles. Use when the user asks to onboard channels, configure provisioning webhooks, manage templates, orchestrate multi-service bundles, or automate channel setup.
sinch-rcs
Sends RCS (Rich Communication Services) messages via the RCS channel of the Sinch Conversation API — rich cards, carousels, suggested replies and actions, media, location, and calendar actions, with automatic SMS fallback. Use when sending an RCS message, rich card, carousel, or suggested-action message; checking device RCS capability; configuring RCS-to-SMS fallback; provisioning an RCS agent; or sending typing indicators.
sinch-sdks
Sinch SDK installation and client initialization for Node.js, Python, Java, and .NET. Use when installing a Sinch SDK, initializing SinchClient, setting up SDK credentials, configuring conversation region in SDK, or building a multi-product SDK client. For In-App Calling SDKs, see sinch-in-app-calling.
sinch-sms
Sends and receives SMS text messages via the SMS channel of the Sinch Conversation API. Covers sender ID types (long code, short code, alphanumeric, toll-free, 10DLC), GSM 7-bit vs UCS-2 character encoding, concatenated multi-part messages, opt-out (STOP) handling, and SMS channel properties. Use when sending an SMS or text message, handling inbound SMS or STOP keywords, choosing or configuring an SMS sender ID, or debugging encoding and message-part issues.
sinch-verification-api
Verify phone numbers via SMS, Flashcall, Phone Call, Data (seamless carrier-level), or WhatsApp with Sinch Verification API. Use when implementing user phone verification, OTP, two-factor authentication, or number ownership confirmation flows.
sinch-voice-api
Build voice apps with the Sinch Voice API v1. Use for phone calls, text-to-speech (TTS), IVR menus, DTMF input, conference calling, call recording, call forwarding, answering machine detection (AMD), SIP routing, WebSocket audio streaming, and SVAML call control. Not for Voice API v2 (public preview); use the sinch-voice-api-v2 skill for that.
sinch-voice-api-v2
Build programmable calling with the Sinch Voice API v2 (public preview). Use for creating outbound calls, handling Voice v2 webhooks, writing SVAML v2 call flows, IVR menus, bridging call legs, call recording, batch calling, connecting Voice Relay or raw audio streams to AI voice agents, and migrating Voice v1 call control to v2. Not for Voice API v1 callouts and ICE/ACE/PIE callbacks (use sinch-voice-api), the In-App Calling SDKs, or Elastic SIP Trunking.
sinch-whatsapp
Sends WhatsApp Business messages via the WhatsApp channel of the Sinch Conversation API — text, media, interactive, and Meta-approved template messages. Covers the 24-hour customer service window, template approval, opt-in requirements, and media specifications. Use when sending a WhatsApp message or WhatsApp template, re-engaging users outside the 24-hour window, handling WhatsApp opt-ins, or debugging failed WhatsApp sends.
- Categories
- Sign-in
- On Install
- Capabilities
- Read, Write
- Availability
- Available
- Version
- 0.5.0
- Keywords
- sinch, messaging, sms, rcs, voice, verification, email, docs, mcp
- Created
- October 20, 2026
- More info
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