MCP servers that give coding agents real developer tooling: linters, package registries, test runners, language docs and local build commands. 13,969 servers in this category.
Provides in-memory PII de-identification and deterministic surrogate tokenization to prevent sensitive data leakage to LLM APIs.
Validates SQL queries by running them against in-memory PostgreSQL and SQLite engines to catch syntax errors, schema mismatches, and dialect differences.
Tests regular expressions against real JavaScript, Python, PCRE2, and RE2 engines to verify matches, groups, and ReDoS vulnerabilities.
Validates configuration files like JSON, YAML, and TOML against official schemas from SchemaStore to identify errors, typos, and deprecated settings.
Provides coding agents with exact RFC section text, status updates, obsoleted-by chains, errata, and IANA registry lookups.
Verifies academic references for existence, accuracy, and retractions, returning corrected BibTeX data.
Analyzes domain email authentication settings, DNS records, and registration status to identify mail delivery and expiration issues.
Explains, validates, and converts cron expressions across multiple scheduler dialects like AWS, GitHub Actions, and Kubernetes.
Identifies end-of-life dates, security support status, and upgrade targets for runtimes, databases, and OS versions by analyzing project configuration files.
Lets an AI client retrieve breaking changes, deprecations, and security fixes from package changelogs and GitHub releases.
Lets an AI client verify software license compatibility, identify SPDX IDs, and check dependency licenses across multiple package managers.
Enables AI clients to build, migrate, and audit Microsoft Fluent 2 user interfaces across web, mobile, Power BI, and Power Platform.
Provides AI agents with design tools for font recognition, color math, palette extraction, SVG optimization, and code transformation.
$claude mcp add --transport http jinero-mcp https://jinero.online/mcp
Enables an AI agent to share code diffs for review and receive feedback through a web application without leaving the coding session.
$claude mcp add mcp -- npx -y letmediff
Enables AI assistants to inspect, compare, modify, and report on RISA-3D structural models by reading .r3d files directly.
Build, version, review, and export websites, web apps, and games directly from an AI chat conversation.
$claude mcp add --transport http mcp-server https://2ools.app/mcp
Enables AI clients to discover, download, and execute specialized expert skills on demand using a local-first progressive loading mechanism.
$claude mcp add codex-skills-mcp -- npx -y codex-skills-mcp
Lets an AI client observe local run activity, usage, lock states, and work lists through read-only status queries.
$claude mcp add runglance -- npx -y @openly-useful/runglance-mcp
Lets an AI assistant manage test cases, execute manual tests, manage releases, and analyze project health within the M00N Report platform.
$claude mcp add mcp-server -- npx -y @m00nsolutions/mcp-server
Performs security auditing for AI agents and MCP configurations by analyzing prompt injection resistance, data flows, and package vulnerabilities.
$claude mcp add mcp-audit-server -- npx -y ledd-mcp-audit-server