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.

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

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

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.

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).

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

Base64 encode, input discarded

ChargerDojo com.chargerdojo/ocpi

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

Snipzr com.snipzr/mcp

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

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.

Immensity io.github.CodingWithJoseph/immensity

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

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

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

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.

HVAC Builder app.hvacbuilder/hvac-builder

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