@heroku/mcp-server

Heroku MCP Server by Heroku

Heroku Platform MCP Server

Live Registry Versionv1.2.12Previous: v1.2.11Published 2026-10-12

Stability Grade

B+ (86/100)

90-Day Velocity

7 releases

Moderate cadence

Dependencies

8 direct

NPM manifest

License

Apache-2.0

Verified on NPM

Recommended Exact Pin: npx -y @heroku/mcp-server@1.2.12

NPM Registry ->GitHub Repo ->

TL;DR Verdict & Quick Citation Summary (2026-10-24)Source: AgentBreakWatch Live NPM Index

Heroku MCP Server (@heroku/mcp-server) is currently at v1.2.12 on NPM (published 2026-10-12), with a 90-day stability score of 86/100 (B+) and MEDIUM schema drift risk across 7 releases in the past 90 days. Built on MCP SDK (^1.26.0); recent release v1.2.12 (up from v1.2.11) updates Cloud & Infra MCP tool schemas and transport handling (7 releases in last 90d). Pin exact version v1.2.12 in .mcp.json to avoid silent parameter drift. Production teams should pin npx -y @heroku/mcp-server@1.2.12 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

Built on MCP SDK (^1.26.0); recent release v1.2.12 (up from v1.2.11) updates Cloud & Infra MCP tool schemas and transport handling (7 releases in last 90d). Pin exact version v1.2.12 in .mcp.json to avoid silent parameter drift.

Watched Exports / MCP Tool Signatures:

heroku-mcp-servertools/listtools/call

Before (Deprecated / Unpinned Pattern)

"heroku-mcp-server": {
  "command": "npx",
  "args": ["-y", "@heroku/mcp-server@latest"]
}

After (Verified v1.2.12 Pattern)

"heroku-mcp-server": {
  "command": "npx",
  "args": ["-y", "@heroku/mcp-server@1.2.12"]
}

Frequently Asked Questions: @heroku/mcp-server

What is the latest version of @heroku/mcp-server on NPM?

As of 2026-10-24, the latest stable version of @heroku/mcp-server (Heroku MCP Server by Heroku) on NPM is v1.2.12, published on 2026-10-12. It has shipped 7 releases in the last 90 days.

Does @heroku/mcp-server v1.2.12 have breaking changes or MCP schema drift risk?

@heroku/mcp-server currently carries a MEDIUM schema drift risk rating with a Stability Score of 86/100 (Grade B+). Built on MCP SDK (^1.26.0); recent release v1.2.12 (up from v1.2.11) updates Cloud & Infra MCP tool schemas and transport handling (7 releases in last 90d). Pin exact version v1.2.12 in .mcp.json to avoid silent parameter drift.

How do I safely pin @heroku/mcp-server in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y @heroku/mcp-server@1.2.12` and monitor heroku-mcp-server, tools/list, tools/call for parameter or schema changes.

30-Min Registry & Schema Poller

Get Instant Breaking-Change Alerts for @heroku/mcp-server

We poll NPM and heroku/heroku-mcp-server every 30 minutes. Get an email with the exact diff when @heroku/mcp-server ships a breaking release beyond v1.2.12.