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PepEvolution Peptide Sources

by pepevolution.com · remote · no sign-in to list tools · v0.2.0 · published by com.pepevolution

Find where to buy peptides from vetted, COA-tested vendors and check if a peptide vendor is legit.

Changes · 1
CompareRegistry entry

3 tools: 1 change things and 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http peptide-sources https://pepevolution.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

3 tools

Changes things 1Claude Code: ask
  • check_vendorCheck if a research-peptide vendor is legit, a scam, or safe to buy from.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Check if a research-peptide vendor is legit, a scam, or safe to buy from. Given a vendor name or slug (fuzzy, case-insensitive), returns PepEvolution's independent audit: PepScore grade + band, lab-verified COA status, a short audit summary of red/green flags, a disclosed buy link (tracked when affiliate) and any coupon, or a clear "not evaluated" result. Use for "is [vendor] legit", "[vendor] review", "[vendor] scam".

    Annotations the server declares

    • title: Check a peptide vendor
    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
Only reads 2Claude Code: allow
  • find_peptide_sourcesFind where to buy a peptide online from vetted, third-party-tested vendors.No findings

    Why it is in this group

    • The name "find_peptide_sources" says "find": a word for reading.
    Description, as the server wrote it
    Find where to buy a peptide online from vetted, third-party-tested vendors. Given a peptide or compound name (e.g. BPC-157, tirzepatide, semaglutide, retatrutide, TB-500), returns independently graded vendors ranked by lab-verified Certificate of Analysis (COA) quality, with PepScore purity grades, coupon codes, and disclosed referral purchase links. Use for "where can I buy X", "best source for X", "which peptide vendor is trusted for X". Fuzzy, case-insensitive matching.

    Annotations the server declares

    • title: Find peptide sources
    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
  • list_verified_vendorsList every PepEvolution-graded research-peptide vendor, sorted by PepScore (desc).No findings

    Why it is in this group

    • The name "list_verified_vendors" says "list": a word for reading.
    Description, as the server wrote it
    List every PepEvolution-graded research-peptide vendor, sorted by PepScore (desc). Each entry carries grade + band, lab-verified COA status, a disclosed buy link (tracked when affiliate), any coupon, and the affiliate disclosure. Use to compare trusted peptide vendors at a glance.

    Annotations the server declares

    • title: List verified peptide vendors
    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http peptide-sources https://pepevolution.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__peptide-sources__find_peptide_sources",
      "mcp__peptide-sources__list_verified_vendors"
    ],
    "ask": [
      "mcp__peptide-sources__check_vendor"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as peptide-sources. Review it before you use it.