MCP Server Directory

Give an AI agent a real .NET debugger: breakpoints, stepping, locals, expression evaluation.

Structural code intelligence over MCP: symbols, callers, imports and blast radius, 40+ languages.

Agent Reliability dev.agentreliability/agent-reliability

Testing, benchmarking and auditing autonomous AI agents — methods, harnesses, evidence

ArcadeOps Public Discovery io.github.Damso74/arcadeops-public-discovery

Read-only ArcadeOps discovery for developer docs, OAuth, OpenAPI and synthetic sandbox.

CVE Security Advisories (NVD High & Critical) — buy per-query in-session (cvewatch) com.a2awire/data-cve-security-advisory-vulnerability-database

CVE advisories: high/critical NVD vulns, daily digest. Register in-session — free testnet funds.

Overskill com.overskill/mcp

Build and publish Overskill apps from Cursor, Claude, ChatGPT, or any MCP client.

Cut your Claude Code bill, measured on your own sessions. Profile and slim any LLM conversation.

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

Names every column, index, view and seed row in a .sql migration that stores card data, with its PCI

Agentic RL: Credit Assignment and CLI Agents space.hf.hoyant-su-agentic-rl/agentic-rl

Filter agent RL methods by supervision, critic and task setting; retrieve source links and BibTeX.

GRAFOMEM CGR Read com.grafomem/cgr-read

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

SDSentry — SDS Lookup & OSHA HazCom com.0xpi.sdsentry/sds-lookup

Free safety data sheet (SDS) lookup by product name, plus an OSHA HazCom readiness check.

DevGlobe io.github.sajeetharan/devglobe

The open-source talent graph for humans and AI agents. Find developers.

Attestwire com.attestwire/en16931

EN 16931: validate invoice data, UBL/CII or PDF; emit XRechnung/Peppol XML, never a PDF.

SvGrid com.svgrid/svgrid

Checks AI-written SvGrid code against the real API, plus version-pinned Svelte 5 grid docs.

Base Transaction Decoder io.github.0200project/base-transaction-decoder

Decode any Base tx: plain English, strict JSON, risk flags, no LLM. 50 free/day per IP, then $0.02.

Disposable microVM sandboxes for AI agents: run code, read/write files, git, preview URLs.

Envloped com.envloped/mcp

Send transactional email, verify domains, build contact segments, and draft marketing campaigns.

161 AI agents for code gen, health, AI/ML, infra, India-stack. One command.

domain-age-pro com.jojapi/domain-age-pro

Domain Age PRO: Check the domain age using fastest api response. On the JoJ API marketplace.

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

Kilotest io.github.jrpool/kilotest

Ensemble testing of web pages for accessibility, usability, and standards conformity

Evidence-bound REW measurement, analysis, conservative EQ, DSP, and listening-test tools.

FoxForm io.github.vitorrocha-panda/foxform

Build, publish and read scored forms and quizzes where the score picks the next screen.