# MoEngage turns 400 private APIs into agent tools with AgentCore Gateway

> Original title: How MoEngage turned over 400 APIs into agent tools with AgentCore Gateway

- Source: AWS Machine Learning Blog
- Published: 2026-10-29T16:54:52.000Z
- Bad Influence: https://badinfluence.news/items/ygpv0ev8vuyy71y15z59zxu2b
- Original: https://aws.amazon.com/blogs/machine-learning/how-moengage-turned-over-400-apis-into-agent-tools-with-agentcore-gateway/

## Summary

MoEngage used Amazon Bedrock AgentCore Gateway to expose about 400 private internal REST APIs as permission-scoped agent tools. The setup uses OpenAPI specs, Cedar policies evaluated before tool lists are returned, and VPC endpoints, with no public endpoint and no per-team MCP servers. The post says this saved an estimated six months of engineering effort and cut onboarding a new API from days to hours.

## Why it matters

The post shows how a company exposed about 400 private APIs as agent tools without per-team MCP servers or public endpoints, using specific Cedar and networking choices.