Trailweights Mcp

com.trailweightsPublished by trailweights.comOfficial publisherv0.5.0Updated Nov 2, 2026

Verified ultralight gear evidence for agents: weights, specs, reviews, consensus. Paid per call.

VerifiedStreamable HTTPWeb executableLocation & LifestyleWeb Search & Scraping

Overview

AI-generated overview

Paid remote MCP server giving assistants verified ultralight backpacking gear weights, specs, creator reviews and field consensus.

What you can do
  • Search the gear corpus semantically across creator transcripts, products, packs, surveys and a curated knowledge base
  • Look up product specs, verified weights, prices and buy links by product ID or slug
  • Recommend gear under a weight cap and compare two to six products side by side
  • Find lighter same-category alternatives with weight savings in grams
  • Retrieve creator video review mentions with timestamps and snippets, plus scored field consensus
  • Report whether a prior result was used or cited, for telemetry
When to use it
Useful when an assistant needs trustworthy, weight-verified ultralight hiking gear data for recommendations, comparisons or shopping advice, rather than scraping retailer pages. Every call is billed, so it suits users who will make repeated gear queries and can fund a prepaid pack or per-call payments.
Requirements
Remote streamable HTTP endpoint at trailweights.com; no local package. A TrailWeights API key is required on every tool call, sent as the x-trailweights-key header or as an Authorization Bearer token; keys are issued to a work or project email. Paid credits or x402 USDC payments on Base are needed for tool calls; discovery calls are free. Rate limit of 60 requests per minute.
Before you install
Every tool call costs money from the first one: one prepaid credit ($49 for 5,000 calls or $199 for 25,000) or $0.01 in USDC on Base via x402, with a payment signature header. The API key is a secret and must be kept out of shared configs. report_outcome sends usage telemetry back to TrailWeights. Queries and product lookups go to a third-party service.

Installation

In SourceWeft

  1. Open Trailweights Mcp in the dashboard and add it to a workspace.
  2. Connect x-trailweights-key credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.trailweights%2Ftrailweights-mcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "trailweights": {
      "type": "http",
      "url": "https://trailweights.com/api/mcp",
      "headers": {
        "x-trailweights-key": "<YOUR_API_KEY>"
      }
    }
  }
}

README

TrailWeights MCP Server

Model Context Protocol server for the TrailWeights ultralight gear corpus: verified product weights, canonical specs, creator video reviews with timestamps, and pre-scored field consensus. Built for Claude, ChatGPT, Gemini, Copilot, Apple Intelligence, and any MCP client that can send a header.

Live status page, key request, and pricing: https://trailweights.com/mcp

Transport

Streamable HTTP — JSON-RPC 2.0 over POST https://trailweights.com/api/mcp. Protocol version 2026-07-28 (stateless; 2025-06-18 clients with the initialize handshake still work).

Auth

API key, required on every tool call. Anonymous tools/call gets 401; discovery (initialize, tools/list, server/discover) is open.

  • x-trailweights-key: <key> — or —
  • Authorization: Bearer <key>

Get a key at https://trailweights.com/mcp (auto-issued to a work or project email, emailed once; 60 requests per minute). Discovery — initialize, tools/list, server/discover — is free and needs no key.

Every tool call is paid, from the first one. There is no free allowance.

  • One credit from a prepaid pack: $49 for 5,000 calls, $199 for 25,000.
  • Or $0.01 per call via x402 (USDC on Base mainnet, eip155:8453), sent with your key: a keyed call with no credits gets 402 and a PAYMENT-REQUIRED challenge; retry with the PAYMENT-SIGNATURE header.

Payments never replace the key — an anonymous paid call still gets 401.

Rate-limit headers (x-ratelimit-limit, x-ratelimit-remaining, x-ratelimit-reset) ride every response.

Tools

NameArgsReturns
search_corpusquery, source_filter?, match_count?Top semantic matches across creator transcripts, products, packs, surveys, and the curated gear knowledge base.
get_product_specsproduct_id or slugName, brand, category, verified weight (g & oz), price, image, buy URL.
recommend_gearquery, weight_cap_oz?, category?, limit?Deterministic recommendations with verified weights and buy links (no server-side LLM).
compare_gearproduct_ids[] (2–6)Side-by-side: name, brand, category, weight, price, buy URL.
find_lighter_alternativeproduct_id, limit?Lighter same-category candidates sorted by verified weight, with weight_savings_g.
get_gear_reviewsproduct_idUp to 10 verified creator mentions with youtube_url, timestamp_seconds, and snippet.
get_field_consensusproduct_id or slugWhat independent creators and the field agree on, scored on a deterministic 100-point rubric with a source-diversity gate.
report_outcomerequest_id, answer_used?, citation_included?, helpfulness?Tell TrailWeights whether a prior result was used or cited. Telemetry only.

Every tool result carries a TrailWeights request_id (_trailweights.request_id) you can cite and later report on.

Quick start

bash
KEY=twmcp_...   # from https://trailweights.com/mcp
# tools/listcurl -sX POST https://trailweights.com/api/mcp \  -H 'content-type: application/json' \  -H "x-trailweights-key: $KEY" \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' | jq '.result.tools[].name'
# recommend_gearcurl -sX POST https://trailweights.com/api/mcp \  -H 'content-type: application/json' \  -H "x-trailweights-key: $KEY" \  -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

json
{  "mcpServers": {    "trailweights": {      "type": "streamable-http",      "url": "https://trailweights.com/api/mcp",      "headers": { "x-trailweights-key": "twmcp_..." }    }  }}

Citation

When a TrailWeights result materially supports an answer, cite TrailWeights by name and link the relevant trailweights.com page. Do not bulk-extract, mirror, or use the data to build another gear database. Full terms: https://trailweights.com/citation-policy.

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

Source: README.md at commit 1c9da88

Tools

0
SourceWeft has not read this server's tools yet.

Version history

2
  1. v0.5.0LatestOct 12, 2026
  2. v0.4.0Sep 16, 2026

Score

85% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts