MCP Server Directory

HTTP 414 uri-too-long io.github.sadri-dridi/http-414

Meaning of HTTP 414.

China Air Quality io.github.pipeworx-io/china-air-quality

China Air Quality MCP — nationwide hourly AQI from CNEMC (中国环境监测总站).

PEP 621 project name shape, body discarded io.github.sadri-dridi/pep621-ok

PEP 621 project name shape, body discarded

Sqids alphabet charset, value discarded io.github.sadri-dridi/sqid-alpha

Sqids alphabet charset, value discarded

maildir info-flag charset, value discarded io.github.sadri-dridi/maildir-ok

maildir info-flag charset, value discarded

BLAKE3 hex length, input discarded io.github.sadri-dridi/blake3-ok

BLAKE3 hex length, input discarded

Base64 padding shape, input discarded io.github.sadri-dridi/base64-pad-ok

Base64 padding shape, input discarded

Permissions-Policy directive count, value discarded io.github.sadri-dridi/permissions-ok

Permissions-Policy directive count, value discarded

CPE 2.3 wfn field count, value discarded io.github.sadri-dridi/cpe-ok

CPE 2.3 wfn field count, value discarded

Trade Compliance io.github.pipeworx-io/trade-compliance

Trade Compliance MCP — the two questions an importer asks that the tariff

Nplg Catalog io.github.pipeworx-io/nplg-catalog

National Parliamentary Library of Georgia MCP — the union catalogue and the

Travelpayouts io.github.pipeworx-io/travelpayouts

Travelpayouts MCP — wraps the Aviasales Flights Data API (travelpayouts.com)

GitJog — Hungarian legislation io.github.godavid/gitjog

Full text and amendment history of Hungarian acts: section-level search, point-in-time text, diffs.

Ergora Specialists io.github.ergoracloud/ergora-specialists

17 business specialists — sales, marketing, ads, ecommerce, finance, HR, legal, PR… Cited insights.

Steel Brain io.github.dryow1/steel-brain

Trade-verified steel grade properties, substitution verdicts, and mill-cert guidance for AI agents.

Optimization middleware for AI agents: JSON problem in, verified and ranked solutions out.

Marginalia io.github.pipeworx-io/marginalia

Marginalia MCP — independent web search over a non-commercial, non-SEO index.

Nlrb io.github.pipeworx-io/nlrb

NLRB MCP — US National Labor Relations Board case search: unfair labor

hashtag token count, text discarded io.github.sadri-dridi/hashtag-n

hashtag token count, text discarded

AVI RIFF check, file discarded io.github.sadri-dridi/avi-riff

AVI RIFF check, file discarded

Read-only macOS disk analysis with bounded scans, size queries, and extension breakdowns.

FreeToolHub io.github.cavan1977/freetoolhub

44 calculators for AI agents: US tax, finance, business + an MCP engineering & security suite.

ABNF rule count, body discarded io.github.sadri-dridi/abnf-ok

ABNF rule count, body discarded

Us Code io.github.pipeworx-io/us-code

US Code — the text of federal statutes, by citation.