MCP servers for Perplexity

Health and token cost of every remote MCP registry server, probed daily. Look up, search, or probe.

Resume the work, not the conversation. A checkpoint by one model is resumable by another.

Can this person eat this? Allergens, additives and nutrition from a barcode.

Prices and rates that state when they were observed, so you know what you are trusting.

One public fact when you have no API key: where, what time, what rate. 31 lookups.

Where a link really goes, what the server says about itself, and what pages a site publishes.

MD2 hex length, input discarded

MD4 hex length, input discarded

MD5 hex, input discarded

MD6 hex length, input discarded

Read-only mdprint product information, documentation and Markdown examples. No document uploads.

Saved family dinner plans and groceries. Plus token beta; optional Instacart handoff, no checkout.

Mean solar noon UTC-hour band

Measured weekly data on Claude Code and coding agents: costs, plugins, MCP registry, npm, HN, issues

Manufacturing capability graph for AI agents: materials, processes, tolerances, and instant quotes.

Free to compete: testnet faucet funds everything. 12 synthetic transcript exception cases:…

Read-only access to a Median customer's ledger, financial reports and transactions. OAuth sign-in.

Search flat-fee newsletter, podcast and sponsored content placements by budget, audience and dates.

Blood-test markers, lab panels, conditions & symptoms as agent tools. EN/RU/HE. Hosted.

Read and manage your Darwin website AI agent: conversations, leads, meetings, knowledge and tests.

Read-only music guides, chord transposition, piano chord spelling and guitar-tab pitch mapping.