# Fettle (fettle.sh)

Monitors HTTP, TCP, DNS, SSL and cron heartbeat endpoints from several regions, opening incidents when every region agrees.

- Atlas card: https://inite.ai/en/atlas/fettle.sh
- Site: https://fettle.sh
- For: Developers and their AI agents keeping deployed apps, APIs and cron jobs up.
- Use 0/100 · alive 100/100

## Used for

- get alerted when a site returns 5xx errors
- check cron jobs for missed heartbeats
- publish a public status page for users

## Price

- from 9 USD/month, free plan (read 2026-10-24 on https://fettle.sh/pricing)

## For developers

- OpenAPI: https://api.fettle.sh/openapi.json (99 paths)
- API docs: https://api.fettle.sh/public-api/docs
- MCP server: sh.fettle/mcp (namespace; open on 2026-10-24, 49 tools)
- Status page: https://status.fettle.sh/fettle-platform
- Read 2026-10-24

## MCP server, measured daily

Server: https://api.fettle.sh/mcp, checked every day since 2026-10-24 (3 checks).

- Answered: measuring, 3 daily checks so far
- Median first answer: 787 ms
- Sign-in: none
- Context its tool definitions take: about 18739 tokens (49 tools)
- Tool definitions: A, 100/100
- Warning "open_writes": create_monitor, bulk_create_monitors, bulk_update_monitors, update_monitor, delete_monitor
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-24

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Source: INITE Atlas, https://inite.ai/en/atlas/fettle.sh. JSON: https://inite.ai/api/atlas/fettle.sh. MCP: https://inite.ai/api/mcp (atlas_lookup).