"Connecting external data sources for contextual LLM calls" matching MCP connectors:

Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.

Helena Bioinformatics MCP for clinical variant interpretation, ACMG/AMP evidence and literature.

MCP server for live, sourced Brazilian public data from the official IBGE APIs.

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

Validate EU, UK, AU VAT numbers for AI agents. EU ViDA e-invoicing compliance.

Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.

Twenty-two paid x402 and MPP tools for agent discovery, payment safety, data, and DeFi.

The adaptive health-messaging engine for apps and agents. Federally-sourced. Not medical advice.

Micro-settled web content extraction and JSON schema validation utilities for AI agents and MCP clients, backed by the Bristlecone Logic API engine.

Get recommended by Amazon's AI. Hosted MCP server for Amazon listing compliance & generation.

290+ quality-scored API capabilities for AI agents across 27 countries via MCP.

Agent intake desk for property renovation. Read only, CORS open, fail closed, receipts recompute.

Read-only breach intel, full history 2007-today: reports THAT an org was breached, never the data.

Search otwarteAPI.pl — a catalog of 53 official public Polish and EU APIs (VAT white list, KRS, GUS, NBP, ECB, Eurostat, VIES and more), curated for AI agents. One tool: find the right API by natural-language query. No API key, no signup.

Reference data for prediction markets: graded resolution clarity, cross-venue links, provenance.

Savvly MCP: query fund data, model projections, and compare against alternative retirement products.

Agentic Finance: 500+ tools for AI agents over x402 or MPP, free via PoW, or prepaid card credits

The Brain Layer for AI Trading Agents — quant calls + cross-venue arb across perp venues via MCP.

Search and cite US law from official sources, then form an LLC or nonprofit with free agent tools.

Independent pre-transaction audit for construction estimates. Free, and every verdict recomputes.