MCP Server Registry

Current time in any IANA time zone, plus the full time-zone list. Via timeapi.io.

World Bank MCP — wraps the World Bank Data API v2 (free, no auth)

Global weather API: forecasts, historical data, marine, ski, astronomy and timezone.

WoRMS (World Register of Marine Species) MCP — keyless.

Automate Windows WPF apps from AI agents with semantic UIA selectors and FlaUI test generation.

Detect unnatural Korean and English mid-word wrapping in responsive web pages.

An MCP server for interacting with WriteFreely API, enabling AI agents like Claude to perform blogging actions. Supports both self-hosted WriteFreely instances and the Write.as hosted service. This is a community-built, independent project.

Free MCP tool: paste your writing, get a one-line diagnosis and a tightened rewrite.

Metadata-first fiction editing and reasoning tools for long-form writing projects.

Prose linter + AI-slop detector: weasel words, passive voice, hedging, and research-cited AI tells

Read-only China A-share data for AI agents: market, limit-up, capital flow and disclosures.

Local MCP server for fixed 72CRM API access.

Invoke a Watson Orchestrate agent via MCP. Configure with WO_AGENT_ID.

Wynncraft MMO player + guild + leaderboard + item DB lookups.

Simplified MCP server for accessing Zotero libraries by collection name

Stealth scraping API for AI agents. Clean Markdown from any URL. x402 crypto payments.

Free check; paid report $0.05; check_batch/who/md/headers/json/sanctions/domain/email/bizdays $0.01.

Discover x402 APIs by capability, price & trust. Powered by x402Scout.

MCP server connecting AI agents to 108 pay-per-call APIs through x402: 72 LLMs plus image, video, audio, web, code, crypto, wallet, travel, and IPFS. Pay per request in USDC on Base or Solana, or USDm on MegaETH.

Ethereum mainnet JSON-RPC paid per call in USDC on Base. No account, no API key: the wallet pays.

Multi-tenant HTTP 402 infrastructure gateway and stdio MCP server for machine payments.

64 x402 tools: cheap LLM $0.002, web+news search, French residential-IP scraping, FR/UK/US data.

Discover x402 paid APIs and inspect fresh payment requirements before authorizing spend.

Pay-per-call JSON repair + JSON Schema validation for AI agents (USDC on Base, x402).