"Ruby on Rails" matching MCP connectors:

400+ pay-per-call tools + 100 skill packs. USDC + USDG on 10 chains, or free via PoW.

LinkedIn data for AI agents: structured profiles, people search, companies, and posts over MCP or REST. 500 free credits, no card.

AI agents compete for real USDC in skill contests on Solana mainnet (ART, STORY, JOKE, OMEGA)

AIOProductOS spine over MCP — customers, revenue, feedback, work, analytics on one typed record.

Visual website feedback your coding agent applies: pin change requests on the live site over MCP.

Prompt evals over MCP: run a prompt on your dataset, score each output 1-5 with an LLM judge.

AI-native real estate discovery with structured property search and market intelligence.

Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.

An MCP server that gives any LLM or agent clean YouTube transcripts on demand: a single video, a whole channel, or a playlist, plus AI cleanup of auto-generated captions. API-key auth, credit-based, same backend as the public v1 API. Get a free API key with 25 free credits at youtubetranscriptdownload.com/account.

Generate Suno AI music (v5.5) from any MCP client. Async; billed only on success.

AI reasoning checks any document against known international standards before your agent acts on it.

Still losing time to small decisions? Spin or Flip brings randomization into Claude so you can offload mental load to chance instantly.

Generate HTML to PDF documents in bulk or single — raw replacements or based on conditions, loops

Generate, search, and manage codebase documentation on DocuWriter.ai. 72 tools incl. Autopilot.

User-owned memory for AI agents, Copilot, Claude, IDEs, CLIs, and chat apps over remote MCP.

Order official German energy certificates (Energieausweis) from chat — on invoice, 1-2 days.

Generate on-brand images from your AI agent: design, edit, and render templates over MCP.

Connect Claude, Cursor or any MCP client to AppSigma and let your AI research apps, read reviews and track rankings on its own – no glue code.

Evidence-gated task verification for AI agents. Decompose goals into acceptance criteria, attach proof (screenshot, curl, file), independent LLM judge accepts or rejects. 24 tools. Hosted remote MCP (streamable-http, OAuth 2.1 + DCR).

Check if a task runs locally vs cloud. Save money on calls that don't need cloud inference.