# Mongodb

> Query MongoDB Atlas — collections, documents, and aggregations via the Data API.

- Skill: `majiayu000/mongodb-4` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/mongodb-4`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/mongodb-4/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/mongodb-4

---


# MongoDB Atlas

Query collections and documents via the MongoDB Atlas Data API.

## Environment Variables

- `MONGODB_URI` - MongoDB connection URI or Atlas Data API key

## Find documents

```bash
curl -s -X POST -H "Content-Type: application/json" \
  -H "api-key: $MONGODB_URI" \
  "https://data.mongodb-api.com/app/data-xxx/endpoint/data/v1/action/find" \
  -d '{"dataSource":"Cluster0","database":"mydb","collection":"mycoll","filter":{},"limit":10}' | jq '.documents[]'
```

## Insert document

```bash
curl -s -X POST -H "Content-Type: application/json" \
  -H "api-key: $MONGODB_URI" \
  "https://data.mongodb-api.com/app/data-xxx/endpoint/data/v1/action/insertOne" \
  -d '{"dataSource":"Cluster0","database":"mydb","collection":"mycoll","document":{"name":"test","value":42}}' | jq '{insertedId}'
```

## Aggregate

```bash
curl -s -X POST -H "Content-Type: application/json" \
  -H "api-key: $MONGODB_URI" \
  "https://data.mongodb-api.com/app/data-xxx/endpoint/data/v1/action/aggregate" \
  -d '{"dataSource":"Cluster0","database":"mydb","collection":"mycoll","pipeline":[{"$group":{"_id":"$field","count":{"$sum":1}}}]}' | jq '.documents[]'
```

## Notes

- Replace `data-xxx` with your Atlas app ID.
- Always confirm before inserting or deleting documents.