MCP Server Directory

GRAFOMEM CGR Read com.grafomem/cgr-read

Read Foundation-signed, offline-verifiable CGR agent-reputation attestations. No install.

SRI — MCP Server Inspector biz.sri-test/verifier

2,000+ MCP servers read at source level. Know what one does before you connect. Free, no key.

Spiderbrain ai.spiderbrain/spiderbrain

Deterministic context layer for your codebase: change impact, blast radius, answers with receipts.

Authoring bridge for Caveat: validate, check and test programs; explain decisions; find dependents.

Construct, inspect, visualize, and simulate evidence-backed ODE models with BioMASS

Boonful Studio io.boonful/studio

Publish and sell what you build with Claude: apps, ebooks and courses, with checkout and a feed.

Check, translate and fix app localization files: ARB, iOS strings, Android XML, i18next JSON.

x402 HTTP 402 + MCP paywall: charge USDC per agent call. Self-host via npx or Docker.

Go Vulnerability Database Tracker — buy per-query in-session (govulnwatch) com.a2awire/data-go-vulnerability-golang-security

Go vulns: CVEs per module, fixed versions. $0.01/query. Register in-session — free testnet funds.

Base64 encode, input discarded io.github.sadri-dridi/base64-ok

Base64 encode, input discarded

Space Weather (Kp Index, Solar Flares) — buy per-query in-session (spaceweather) com.a2awire/data-space-weather-kp-index-solar-flare

Space weather: Kp index, solar flare flux, alerts. $0.01/query, free testnet funds.

Delvorn io.github.MrAnderson323/delvorn

GET https://delvorn.site/api/x402/test-asset $0.05 Base. First independent=Certified+$0.05 back.

Local quantum error correction tools; decoder output verified against H c = s (mod 2).

ChargerDojo com.chargerdojo/ocpi

OCPI versions, what changed between them, and which modules and journeys ChargerDojo tests.

spreadsheet-builder io.github.theluckystrike/spreadsheet-builder

Open, inspect, filter, edit and convert xlsx and csv files from your AI chat. Processing is local.

SEFAZ MG: Protesto Inscrito em Dívida Ativa io.github.mcp-dir/sefaz_mg_protesto-mcp

SEFAZ MG: Protesto Inscrito em Dívida Ativa, official-source lookup. Platform-hosted, pay per query

GS1 element strings, DataMatrix, eight keys, ITF-14 print specs and price-embedded in-store codes.

LifeStep Workbook, Email, QR and DNS Tools io.lifestep/dns

Inspect XLSX/XLSM workbooks, validate email, generate SVG QR codes, and look up domain DNS and TLS.

Immensity io.github.CodingWithJoseph/immensity

Discover software problems, analyze evidence, and create implementation-ready Build plans.

Snipzr com.snipzr/mcp

Short links with branded domains, cookie-less analytics and QR codes. Sign in with OAuth or a token

Craftery Developer Tools dev.craftery/tools

Developer utilities: color conversion, WCAG contrast, timestamps, UUIDs, and hashing.

Local-first PHI detection for source code, LLM prompts, logs, and analytics

Pin visual feedback on any live web page and send it to Claude Code, Cursor or your AI agent.

HVAC Builder app.hvacbuilder/hvac-builder

Design, solve and simulate HVAC systems from real components, weather years and buildings.