Google tells you what exists. Faceabot tells you what holds up.
Vary header token count, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/vary-ok/mcp · website · measurements and details6 hydration calculators for LLMs: water intake, dehydration, pregnancy, CKD, athlete, energy.
Package npm :@getvari/mcp · website · measurements and details294 public-data tools across 60 domains; source freshness varies. Free tier.
MCP endpoint :https://livedatalink.ai/mcp · website · measurements and detailsInternational legal analysis (ISO 31000) — 27 tools, 63 selectable jurisdictions; coverage varies.
MCP endpoint :https://legal.nexusquantum.legal/api/mcp · website · measurements and detailsOfficial FLUX MCP server. Generate, edit, vary, and browse images from Black Forest Labs.
MCP endpoint :https://mcp.bfl.ai · website · measurements and detailsAuthenticated GPU/CPU/PSU lookup; beta power-budget estimate. Coverage/freshness vary by source.
MCP endpoint :https://data.techenthus.dev/mcp · website · measurements and detailsAI-assisted English lexical records. Stored-only batch lookup; coverage and quality vary.
MCP endpoint :https://wordorb.ai/mcp · website · measurements and detailsGerman land values (Bodenrichtwerte) by address + land-use type. Coverage varies; not in SH/SN/BY.
MCP endpoint :https://mcp.bodenrichtwert.ai/mcp · website · measurements and detailsConnect AI agents to 580+ APIs with OAuth or API-key auth. Hosted gateway; API pricing varies.
MCP endpoint :https://api.market/api/mcp/gateway · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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