MCP Server Registry

W3C MCP — web-standards lookup over w3c/browser-specs (GitHub, CF-reachable).

Messaging tools for AI agents: send messages, manage chats, groups and channels.

💬 🤖 The most reliable tool for chatbots with advanced features. Be sure to 🌟 this repository for updates!

Self-hostable CRM template for WhatsApp — shared inbox, contacts, sales pipelines, broadcasts, and no-code automations. Fork it, brand it, host it.

Wafeq accounting API: all 251 endpoints as safety-categorized MCP tools, over stdio or HTTP.

MCP server for integrating WAGO PLCs with the WDx REST API

WAHA - WhatsApp HTTP API (REST API) that you can configure in a click! Multiple engines: WEBJS (browser based), NOWEB (websocket nodejs), GOWS (websocket go), WPP (browser)

MCP server for the Wahlu social media management API

WakaTime MCP.

A post-mortem succession protocol for AI agents. Black Box, handoff, time-locks.

Walk Score MCP — wraps the Walk Score API (walkscore.com)

MCP server for wallabag read-it-later entries, tags, and annotations.

Solana wallet forensics SDK, x402 pay-per-call, AI agents.

Multi-chain wallet MCP. 18 tools: balance, swap, bridge, stake, claim. Pay-per-call USDC (x402 v2).

On-chain toxicity and spam transaction detector for Web3 wallets.

Bitcoin wallet intelligence MCP for satoshidata.ai. Identify Bitcoin addresses by entity, category, confidence, evidence, and risk signals across exchanges, mining pools, scams, gambling, marketplaces, mixers, and government seizures. 39 live tools cover wallet summaries, transaction verification, fees, mempool and on-chain stats, pools, blocks, OP_RETURN decoding, timestamping, pulse alerts, and chain awakenings. Optional API-key forwarding supports gated calls.

Crypto wallet portfolio API for AI agents. Full token holdings across Ethereum, Base, Polygon, Arbitrum, and BSC: ETH balance, all ERC-20 tokens, USD values, 24h changes, and total portfolio value. Tools: wallet_get_portfolio (full holdings), wallet_get_balance (ETH only). Use this for portfolio tracking, wealth verification, or wallet analysis. Essential for any agent managing crypto assets. IMPORTANT: For token safety check, use token_check_safety. For gas prices, use gas_get_current_price. Returns: {totalUsd, tokens[], ethBalance}. No API key required — x402 micropayment $0.003/call on Base L2.

Crypto wallet balances, ERC-20 tokens, USD values across Base and Ethereum. x402.

Real-time exploit-exposure risk check for EVM wallets, paid per query via x402 (USDC on Base).

A WhatsApp bot that can participate in group conversations, powered by AI. The bot monitors group messages and responds when mentioned.

Walmart Connect Ads API integration for Sponsored Search and Display campaign management.

MCP server for Walmart Marketplace APIs (US, 3P seller)

WAQI MCP — World Air Quality Index (free key)

Redacts PII from your business tools before the AI sees them — with a provable audit log.