MCP Server Directory

Barcode Generator API io.github.Br0ski777/barcode-generator

Generate barcodes — EAN-13, UPC-A, Code128, Code39. Returns SVG. x402 micropayment.

AI-powered OSINT agent & MCP server. 16 tools: email, breach, IP, WHOIS, DNS, Shodan, GitHub & more.

Extract database metadata from PostgreSQL, Snowflake, SQL Server, BigQuery, and Oracle.

Governed x402 payment sessions: pay any endpoint with budget, allowlist & per-tx caps, no key.

Content pipeline MCP server — image sourcing, SEO, affiliate links, and CMS publishing.

IMAP/SMTP MCP server to search, read, organize, send, reply & forward email for AI assistants

HTML Email Playbook io.github.OsamaHassouna/email-playbook-mcp

Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps.

Tabula io.github.nikhilbhima/tabula

Cross-AI personal memory. Save once in ChatGPT, recall in Claude, Mistral, Grok, or any MCP client.

Read-only semantic search MCP server for Obsidian vaults using local Ollama embeddings.

universalbench io.github.nikhilgogulwar/universalbench

Run code, query databases, call any LLM, and commit to GitHub from your AI, safely. Free tier.

Code Sandbox API io.github.Br0ski777/code-sandbox

Execute Python, JavaScript, SQL code in a sandbox. x402 micropayment.

convalytics io.github.Dan-Cleary/convalytics

Read-only analytics for Convex apps, queryable via MCP from Claude, Cursor, and other clients.

Multi-agent memory intelligence with expertise tracking and conflict detection

Simpliq Data Proxy MCP Server - Connects LLMs to SQL Databases via Semantic Mapping

Persistent layered memory for AI agents. SQLite FTS5, fact versioning, zero-cloud.

List LLM providers and run chat completions through the three.ws multi-provider router.

Cron Parser API io.github.Br0ski777/cron-parser

Parse, validate and explain cron expressions. Get next run times. x402 micropayment.

A lightweight, multi-guild Discord MCP server with 95+ tools

Chainweb HTTP API: local sim, pre-signed send, poll, table reads, SPV proofs, module deploys.

Semantic memory for AI agents with hybrid search, knowledge graph, and consolidation

agentdata-nl io.github.DarthSander/agentdata-nl

x402-paid tools: EU company & sanctions data, web search, LLM chat, crypto intel, x402 monitoring.

Dataassist-IO io.github.DataAssistIO/Dataassist-IO

Query your org's data in natural language — read-only MCP access to SQL, NoSQL, files & warehouses.

Structured build tool output (tsc, generic commands) as typed JSON diagnostics.

Codebase observatory with 56+ scanners for git health, architecture, and documentation.