Sinch Agent Tools

Build with Sinch APIs from the AI tools you already use

Sinch Agent Tools is a developer toolkit for the agentic era: MCP, Skills, a CLI, SDKs, Functions, and editor plugins that put Sinch’s communications APIs directly into your editor, your terminal, and your agent’s workflow. 

  • Connect AI coding tools and agents to live Sinch APIs 

  • Generate working integration code without tabbing out to documentation 

  • Deploy serverless communications workflows with no infrastructure to manage 

Talk to an expert
View docs
Sinch Tools: Developer Toolkit for AI-powered Comms | Shipped Q2 2026
Join over 200,000 businesses, including 8 of the 10 largest tech companies in the world

Why now

The way you build as a developer has changed

Development starts in your editor now, often with an AI assistant writing alongside you or an agent calling the API on its own. When a communication tool (like Sinch) isn’t accurately represented there, your assistant writes code that looks right and breaks on the first real call. 

Agent Tools places the context you (and your agents) need, right where the work actually happens.

Image for The way you build as a developer has changed

Agent Tools at a glance

Six tools that work standalone, but better together

MCP

Connect AI coding tools and agents directly to Sinch’s live APIs.
Explore Sinch MCP

Skills

Give your AI assistant expert-level context for every Sinch API.
Explore Sinch Skills

CLI

Build, test, and deploy Sinch products from your terminal.
Explore Sinch CLI

SDKs

Work with Sinch APIs in Node.js, Java, .NET, or Python.
Explore Sinch SDKs

Functions

Run event-driven communications workflows with no infrastructure to manage.
Explore Sinch Functions

Plugins and integrations

Install Sinch into the editors and tools your team already uses.
Explore Plugins & Integrations

Agent connection

One MCP connection to many Sinch APIs

The Sinch MCP server connects AI agents and coding tools directly to Sinch’s live APIs — Messaging, Email, Numbers, Verification, and Voice — so the code they write matches how Sinch actually behaves.

  • Reach every major Sinch API through a single connection 

  • Works with Claude, Cursor, and any MCP-compatible tool 

  • Cuts integration time, so teams ship communication features sooner 

View on GitHub 
                            

                                # Add the Sinch MCP server to Claude, Cursor, or your AI tool of choice 
npx -y @sinch/mcp

MCP deployment models

Four ways to run the Sinch MCP server

Different builds need different deployment models. Pick the one that fits your stack, your compliance requirements, and how your agents run.

A Sinch-hosted cloud endpoint with no local setup. The fastest path for third-party AI platforms and agents that live in chat interfaces.

View on GitHub

A locally run server for developer workstations and private infrastructure. Built for regulated industries that need data sovereignty, and for IDE-native workflows in Cursor, Claude Code, and VS Code.

Get it in Cursor

A read-only documentation layer that gives AI tools real-time access to Sinch’s API reference and code patterns. Paired with Skills, it keeps generated code accurate while Skills guide the approach. Add developers.sinch.com/mcp to your AI tool to try it.

A secure, multi-tenant model with isolated MCP instances for customers, departments, or individual agents. Auto-scales to absorb variable agent demand.

Image for Four ways to run the Sinch MCP server

Agent knowledge

Skills that make your AI a Sinch expert

Sinch Skills are structured knowledge files that give AI coding agents expert-level context for every Sinch API. Install once, and your agent builds Sinch integrations without searching docs or guessing at patterns.

  • Free and open source, no dashboard or configuration required

  • Covers auth methods, regional endpoints, and the gotchas that would otherwise break generated code

  • Messaging, voice, email, verification, numbers, video, SIP trunking, and fax at launch

  • Works with Claude Code, Cursor, Gemini CLI, Copilot, Codex, and Windsurf

Explore Sinch Skills
View docs 
                            

                                npx skills add sinch/skills   # install the full library 
npx skills list               # confirm installation

Command line

Manage Sinch APIs from your terminal with the CLI

The Sinch CLI brings build, test, and deploy into your terminal.

  • Creates, tests, and deploys serverless voice applications with a few commands

  • Keeps you in your workflow, cutting the back and forth between your dashboard and codebase 

  • Manage Sinch Functions today, with more products rolling out

View docs 
                            

                                npm install -g @sinch/cli 
sinch functions init      # scaffold a new project from a template 
sinch functions dev       # build and test locally 
sinch functions deploy    # ship it 
sinch functions logs      # monitor

Client libraries

SDKs for the language you code in

Sinch SDKs wrap our APIs in a consistent framework for authentication, pagination, and error handling. Learn the pattern once and reuse it across every supported product.

  • Available in Node.js, Java, .NET, and Python

  • Covers messaging, numbers, voice, and verification from one authentication model

  • Handles pagination with a single iterator object across every API

View docs 
                            

                                npm install @sinch/sdk-core   # Node.js (or the Java, .NET, or Python equivalent)

Serverless compute

Serverless voice and messaging with Sinch Functions

Deploy your code, and Sinch routes live calls and messages to it – no containers, load balancers, or capacity planning. Trigger from business events: an SMS on signup, a voice call to escalate an alert, verification during authentication.

  • Pre-wired SDK clients keep credential management out of your code

  • Batteries included: cache, blob storage, SQLite, and environment secrets

  • Ships to production in under a minute with one deploy command

View docs 
                            

                                sinch functions init     # scaffold a function from a template 
sinch functions dev      # test locally with a public tunnel 
sinch functions deploy   # ship to production in under a minute
Call To Action Graphic
Get Sinch Skills and the self-hosted MCP server in Cursor with one install
Get it in Cursor

Plugins & integrations

Bring Sinch into the tools you already use

Ready-made add-ons that install Sinch into your editor or agent in one click, with no custom setup or wrappers. Connect your Sinch credentials once and start building.

VS Code extension

Conversation API tools inside VS Code, so your agent can send messages, manage webhooks, and reference configuration without leaving the editor.
VS Code Marketplace

JetBrains plugin

The same tools and code assistance across IntelliJ and the full JetBrains range.
JetBrains Marketplace

Open VSX extension

The same extension for Open VSX-compatible editors, including VSCodium, Windsurf, and Antigravity.
Open VSX Registry

Cursor plugin

Bundles the Sinch MCP server and Skills into a single install for Cursor’s agent.
Cursor Marketplace

Claude Code plugin

Connects Claude Code to the Sinch MCP server to send messages and manage webhooks from your terminal.
View on GitHub

Gemini CLI extension

Connects Gemini CLI to the Sinch MCP server for messaging and webhook management from the command line.
View on GitHub

Developers trust our global infrastructure for messaging, voice, and email 

Explore Sinch Infrastructure
900B+
Interactions annually | 99.99% uptime

Solve the scale and reliability problem with a trusted global provider. Our enterprise-grade infrastructure handles the world’s most demanding communication volumes without breaking a sweat.
600+
direct carrier connections

Skip the middlemen. Our direct Tier-1 connections (that route through 1-2 direct hops vs. 4-6 intermediaries) and ~12,800 interconnections means lower latency, higher deliverability, and better economics.
ISO 27001
& GDPR certified | Experts in 60+ countries

Get uncompromising security and compliance in every market you want to be in, with end-to-end encryption, and proactive, real-time blocking of fraudulent traffic built directly into the rails.
500+
Platform integrations

Seamlessly orchestrate across channels your business already runs on. Our unified ecosystem lets you plug directly into your existing systems (Salesforce, SAP, Temenos, HubSpot, and many more)

Common questions

Frequently asked questions about Sinch Agent Tools

Quick answers on what Agent Tools includes, what it costs, and where to install it.

A suite of developer components that let developers and AI agents build, test, and run on Sinch’s communications APIs from the tools they already use. It includes MCP, Skills, a CLI, SDKs, Functions, and plugins & integrations.

Skills are free and open source, and the Docs MCP needs no account. Live API calls require a Sinch account, which you can create in minutes. 

Try for free

No. Each component is its own product – use one or combine them based on your build. 

MCP is the connection that lets AI tools and agents reach Sinch’s APIs. Skills are structured knowledge files that give your assistant the patterns and context to use those APIs correctly. They’re designed to work together. 

Any MCP-compatible or SKILL.md-compatible tool, including Claude Code, Cursor, Gemini CLI, GitHub Copilot, Codex, and Windsurf. 

Node.js, Java, .NET, and Python, covering SMS, Numbers, Voice, and Verification. 

Serverless compute for voice and messaging. You deploy your code and Sinch routes live calls and messages to it, with no infrastructure to manage. 

A secure, multi-tenant deployment model with isolated MCP instances per customer, department, or agent. It’s coming soon – the remote, self-hosted, and Docs MCP servers are available today. 

The VS Code Marketplace, JetBrains Marketplace, Open VSX Registry, and Cursor Marketplace, plus the sinch-plugins GitHub repo for Claude Code and Gemini CLI.