--- title: "Connect AWS Lambda to Azure Cosmos Db - APIANT.ai" description: "When \"New Function\" fires in AWS Lambda, your agent runs \"Create Document\" in Azure Cosmos Db." canonical: "https://apiant.ai/connect/aws-lambda-to-azure-cosmos-db" --- # Connect AWS Lambda to Azure Cosmos Db When **New Function** fires in [AWS Lambda](https://apiant.ai/connections/aws-lambda), your agent runs **Create Document** in [Azure Cosmos Db](https://apiant.ai/connections/azure-cosmos-db). Describe the whole flow and it is built, tested on every scenario and kept running. AWS Lambda **1** trigger AWS Lambda **2** actions Azure Cosmos Db **14** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want AWS Lambda and Azure Cosmos Db to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### Claude, web and desktop Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Cursor Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Codex and the ChatGPT desktop app Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Any other MCP client Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) Example flows ## What AWS Lambda can start in Azure Cosmos Db - When **New Function** in AWS Lambda then **Create Document** in Azure Cosmos Db - When **New Function** in AWS Lambda then **Query Documents** in Azure Cosmos Db Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with AWS Lambda and Azure Cosmos Db ## Triggers and actions 1 trigger · 16 actions - Trigger **New Function** Triggers when a new AWS Lambda function is created in the connected region. - Action **Invoke Function (Async)** Starts an AWS Lambda function with the data you provide and continues without waiting for it to finish. - Action **Invoke Function (Sync)** Runs an AWS Lambda function with the data you provide, waits for it to finish, and returns what it returned. - Action **Create Container** Creates a new container in a Cosmos DB database, partitioned on the property you choose. - Action **Create Database** Creates a new database in the Azure Cosmos DB account, optionally with shared provisioned throughput. - Action **Create Document** Creates a new document in a Cosmos DB container, or replaces an existing one with the same id when upsert is on. - Action **Delete Container** Deletes a container, and every document in it, from a Cosmos DB database. - Action **Delete Database** Deletes a database, and every container and document in it, from the Azure Cosmos DB account. - Action **Delete Document** Deletes one document from a Cosmos DB container. - Action **Get Container** Returns one container in a Cosmos DB database, including its partition key and indexing policy. - Action **Get Database** Returns one database in the Azure Cosmos DB account by its name. - Action **Get Document** Returns one document from a Cosmos DB container by its id and partition key. - Action **List Containers** Returns every container in a Cosmos DB database. - Action **List Databases** Returns every database in the Azure Cosmos DB account. - Action **List Documents** Returns the documents in a Cosmos DB container. - Action **Query Documents** Runs a Cosmos DB SQL query against a container and returns the matching documents. - Action **Replace Document** Replaces the whole body of an existing document in a Cosmos DB container. ## Each app on its own - [ **AWS Lambda** AWS Lambda is a compute service that runs your code in response to events and automatically manages the...](https://apiant.ai/connections/aws-lambda) - [ **Azure Cosmos Db** Fully managed NoSQL and vector database for storing and querying JSON documents at global scale.](https://apiant.ai/connections/azure-cosmos-db) Reviews ## What our customers say ## More from AWS Lambda - [ **AWS Lambda to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/aws-lambda-to-hubspot) - [ **AWS Lambda to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/aws-lambda-to-salesforce) - [ **AWS Lambda to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/aws-lambda-to-slack) - [ **AWS Lambda to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/aws-lambda-to-google-sheets) - [ **AWS Lambda to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/aws-lambda-to-gmail) - [ **AWS Lambda to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/aws-lambda-to-google-calendar) ## More into Azure Cosmos Db - [ **HubSpot to Azure Cosmos Db** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-azure-cosmos-db) - [ **Salesforce to Azure Cosmos Db** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-azure-cosmos-db) - [ **Slack to Azure Cosmos Db** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-azure-cosmos-db) - [ **Google Sheets to Azure Cosmos Db** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-azure-cosmos-db) - [ **Gmail to Azure Cosmos Db** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-azure-cosmos-db) - [ **Google Calendar to Azure Cosmos Db** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-azure-cosmos-db) Questions ## AWS Lambda and Azure Cosmos Db, answered ### ### What can start an automation from AWS Lambda? Any of AWS Lambda's 1 trigger in the catalog, including New Function. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Azure Cosmos Db when something happens in AWS Lambda? Any of Azure Cosmos Db's 14 actions, including Create Container, Create Database, Create Document and Get Container. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Azure Cosmos Db to AWS Lambda? Azure Cosmos Db has no triggers in the catalog today, so automations start in AWS Lambda. If you need the other direction, ask: your agent reads Azure Cosmos Db's API documentation and adds it. ### ### Do I have to build a connector for AWS Lambda or Azure Cosmos Db? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### Can my AI client use AWS Lambda and Azure Cosmos Db without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both. ### ### What happens when something fails? Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships. ### ### Is there a free plan? Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.