TrailWeights

Public Model Context Protocol server for the TrailWeights ultralight gear corpus. Lets ChatGPT, Claude, Apple Intelligence, Copilot, Gemini, and any MCP-compliant client search 5,000+ products, 40,000+ creator transcript chunks, and 21 in-house pack templates with verified weights and curated retailer buy links.

Transport

Streamable HTTP — JSON-RPC 2.0 over POST. Protocol version: 2025-06-18.

Auth

None. All tools are read-only. Rate limit: 60 requests/minute/IP. Rate-limit headers (x-ratelimit-limit, x-ratelimit-remaining, x-ratelimit-reset) ride every response.

Tools

Name	Args	Returns
search_corpus	query, source_filter?, match_count?	Top semantic matches across transcripts, products, packs, surveys, and the curated gear knowledge base.
get_gear_reviews	product_id	Up to 10 verified creator mentions with youtube_url, timestamp_seconds, and snippet.
get_product_specs	product_id or slug	Name, brand, category, verified weight (g & oz), MSRP, image, buy URL.
recommend_gear	query, weight_cap_oz?, category?, limit?	Catalog recommendations sorted by relevance with verified weights and buy links.
compare_gear	product_ids[] (2–6)	Side-by-side: name, brand, category, weight, MSRP, buy URL.
find_lighter_alternative	product_id, limit?	Up to 10 lighter same-category candidates sorted by weight, with weight_savings_g.
get_pack_template	template_id or slug	Full item list for one of the 21 in-house pack templates.

Quick start

# tools/list
curl -sX POST https://trailweights.com/api/mcp \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' | jq

# recommend_gear
curl -sX POST https://trailweights.com/api/mcp \
  -H 'content-type: application/json' \
  -d '{
    "jsonrpc":"2.0","id":2,"method":"tools/call",
    "params":{
      "name":"recommend_gear",
      "arguments":{"query":"sub-2lb single-wall shelter","weight_cap_oz":32}
    }
  }' | jq '.result.structuredContent.recommendations[0]'

Connect

{
  "mcpServers": {
    "trailweights": { "type": "streamable-http", "url": "https://trailweights.com/api/mcp" }
  }
}

Discovery manifest: https://trailweights.com/.well-known/mcp.json