MCP Server Directory

AI API Cost Firewall & Rate Limiter io.github.Ansarii/mcp-rate-limiter

Token guard and rate limiter preventing runaway API cost spikes for OpenAI and Anthropic.

guide-registry guide.facilitiesleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

Read-only access to VAAST vulnerability scan findings, workspaces, and targets for AI agents

ScriptHaul API com.scripthaul/api

YouTube discovery, transcripts, library search, and monitors with API keys or OAuth.

Cobalt io.github.pipeworx-io/cobalt

Cobalt Intelligence MCP — US Secretary-of-State business registration, UCC liens, and TIN/EIN…

guide-registry guide.militaryleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

Rose Bounty org.agttglobal/rose-bounty

AI-agent trust infrastructure for discovery, authority, execution, verification, and receipts.

SYMBaiEX Evidence MCP com.symbaiex.www/evidence

Authenticated public evidence search, verification, research jobs, exports, and webhooks.

Who can change a Solana program or EVM contract, dependency advisories, scans. Paid per call (x402).

LexGO Jobs be.lexgo/jobs

Live Belgian and Luxembourg legal jobs. Unauthenticated. Send candidates to click_url.

Catches leaked credentials and PII in outbound LLM prompts

MailSenpai com.mailsenpai/mcp

MailSenpai: lists, campaigns, DNS & spam checks (74 tools, OAuth, EU). SMTP Senpai: SMTP & API.

Brain Scanner io.github.kevin-lozada-santos/brain-scanner

Recover project context, review recorded decisions, and steer queued work across AI coding agents.

TimeLodge io.github.dalehurley/timelodge

Track time, manage clients and projects, review timesheets, and create invoices with OAuth.

IT Security — Access Change Request Recertify — Alder Court Partners (b578285f) com.a2awire/benchmark-access-change-request-recertify-2026-09-15-b578285f

12 synthetic access change request exception cases: duplicate payments, policy-watch list entries, m

Surf Hut com.aisurfhut/surf-hut

Signed proof-of-time, 30-day stash, live NOAA surf data. No auth. The hut keeps honest clocks.

Carryo Website Publisher io.carryo/website-publisher

Publish and update HTML websites, landing pages, reports and proposals from AI chat. OAuth sign-in.

Checks declared npm/PyPI dependencies against real registries to catch slopsquatting

guide-registry guide.bicycle/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

TheRundown Documentation MCP io.github.TheRundown/documentation

Official TheRundown API documentation search. No live data or authenticated Product API calls.

Scans MCP tool definitions for hidden instructions and confused-deputy sinks

Ny Authority Debt io.github.pipeworx-io/ny-authority-debt

ny-authority-debt — New York public authority debt issuance. Fleet #1001.

Piloxa io.github.Piloxa/piloxa

Prepare USPS Certified Mail letters from any AI assistant; a person reviews, pays and authorizes.

guide-registry guide.schoolleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.