Developer Tools & Repos MCP Servers for ChatGPT

Crates.io MCP — wraps the crates.io REST API v1 (free, no auth)

CRC-16 hex length, input discarded

CRC-64 hex length, input discarded

CRC-8 hex length, input discarded

Checksum MCP — CRC-32 & Adler-32.

CRC16 hex, input discarded

CRC32 hex, input discarded

CRC8 hex, input discarded

CRLF pair count, text discarded

Crockford Base32 ULID shape, value discarded

Cron expression parser: explains any cron + returns next N fire times. Timezone-aware.

Validates cron expressions and finds DST bugs that make jobs silently skip or double-fire.

CUID2 charset, value discarded

CUID2 length band, value discarded

Number & currency formatting MCP.

Check Dart/Flutter dependencies on pub.dev for updates and manage monitored projects.

data: URL media-type shape, value discarded

Is this version still supported? End-of-life dates for 14 runtimes and operating systems.

Date arithmetic: day differences, business days, age, leap years, day-of-week, add/subtract.

Days in current UTC month

Days in current UTC year