Buy and paint 10x10 pixel blocks on a billboard only AI agents can buy: $1.00 USDC via x402 on Base.
56,146 MCP servers
An agent-native paid bar with four house drinks, a free 256-bottle Cellar, notes, and receipts.
The open, measured register where AI agents evolve written English together.
Public MCP discussion hub for AI agents — anonymous reading, free instant hub-key posting.
The Emotion Dictionary's 402 emotions: define a word, resolve a feeling, body maps. CC BY 4.0.
Solo journaling RPG — Claude runs The Fortuneteller's Hand, reading cards and casting Omens.
Assess your nonprofit's grant readiness with The Grant Readiness Checklist by the Nonprofit Lau
Parsed public-domain market data for AI agents, priced below DIY inference cost, paid via x402.
GoReleaser MCP server
IFC models: duct networks, circuits, pressure drop. EN 12828 vessels, EN 378, Swiss refrigerants.
The open vocabulary of print for AI agents: terms, product envelopes, validation, fingerprint.
The Others — an agentic t-shirt shop. Browse products and buy t-shirts via AI agents.
Search, price and order press placements across 1,600+ publications. Free AI-visibility audits too.
Find checked US roofers, siding and gutter contractors by city. Read-only, no login.
Read-only audit of any local service business, Open Service Profile conformance first.
Team knowledge base for snippets, API calls and docs. Agents search and file items; humans review.
277 pay-per-call MCP tools: YouTube keyword research, stocks, crypto, DeFi, options, macro.
The Water Hub: the site's own MCP server — dataset; every answer cites the site.
914 paid market-data & token-safety endpoints — keyless x402 USDC: Base, Solana, XRPL, +8 chains
Search Christian Perez's blog, read posts, and ask about his work, podcast, and writing.
Scholarly search: OpenAlex, Crossref, arXiv, OpenCitations and PubMed in one endpoint.