Developer Tools & Repos MCP Servers for ChatGPT

Nano ID shape check

NDJSON shape check, body discarded

Build and publish multiplayer apps and games on Neblla: scaffold, edit files, ship to the gallery.

JSON/YAML, regex, diff, JWT, SQL dialects — the keyless millisecond ops an agent needs mid-task.

newline count, text discarded

newline run length band, text discarded

Deterministic time tools for AI agents: timezone conversion, business-day math, cron interpretation.

Nil UUID shape

Production-safety audits for AI-generated code, with a fix for every finding.

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MCP server exposing NiceOneCode's JSON-to-C# converter as an AI-callable tool.

Notepatra editor MCP server — 35 tools; every write human-approved in the editor; local-only.

Check a Notion URL shape. Path discarded.

Check an npm package name shape. Name discarded.

npm package download trends and adoption growth over time. Free key at trendsapi.ai

Inspect NuGet package APIs, dependencies, metadata, and breaking changes across versions.

NuGet MCP — .NET package registry

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Generate secure Cairo/Starknet smart contracts from OpenZeppelin Contracts.

Generate secure, audited Solidity smart contracts from OpenZeppelin Contracts.

Serves Oracle Forms module content (.fmb/.mmb/.pll/.olb) from a directory to MCP clients.