PepEvolution Peptide Sources MCP Server

by pepevolution Your server? Claim it

answering

PepEvolution Peptide Sources is answering right now. Last checked 11 min ago. It exposes 7 tools.

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

Uptime history 84 days of history · worst day 95%

84 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

178 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 15

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 22 October 2026. No other catalogue keeps this.

7 Nov 5 tool descriptions were rewritten check_vendor, find_peptide_sources, get_compound_grade and 2 more

7 Nov 4 tools changed the parameters they ask for check_vendor, find_peptide_sources, get_compound_grade and 1 more

7 Nov 2 tools appeared calculate_reconstitution, get_dosing_guide

7 Nov a tool changed version

22 Oct 2 tools appeared get_compound_grade, get_peptide_price

22 Oct a tool changed version

Nothing serious here today

Today is the operative word: we check PepEvolution Peptide Sources every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

Settings → Connectors → Add custom connector, then paste this address

https://pepevolution.com/mcp

~/.codex/config.toml

[mcp_servers.peptide-sources]
url = "https://pepevolution.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "peptide-sources": {
      "url": "https://pepevolution.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "peptide-sources": {
      "type": "http",
      "url": "https://pepevolution.com/mcp"
    }
  }
}

Available tools 7

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

peptide

find_peptide_sources

Vendors that carry a peptide, tiered by PepEvolution COA audit status. `vendors` lists only vendors whose COAs are verified real, batch-matched, and from a named independent lab, ranked by Source Match (vendor grade × batch-COA freshness; ties resolve to the non-affiliate). `unaudited_vendors` publish COAs PepEvolution has not authenticated. Vendors with shared/recycled, fabricated, or no COAs are excluded and only counted. Strict name matching (e.g. BPC-157, TB-500, tirzepatide).

get_peptide_price

Research-vendor pricing from the PepEvolution price index: median/p25/p75 $/mg, vendor_count, last_scraped, and cite_url.

calculate

calculate_reconstitution

Reconstitution arithmetic: given vial size (mg), bacteriostatic water added (mL), and a dose, returns concentration, dose volume in mL, units on a U-100 insulin syringe, and doses per vial. Pure math; it does not judge whether a dose is appropriate.

compound

get_compound_grade

A peptide's PepScore grade: score, band, category, one-liner, last_graded, and cite_url.

dosing

get_dosing_guide

Doses used in published research for a peptide, each row with route, caveats, and citations, plus regulatory status, evidence summary, pharmacology, safety notes, and a worked reconstitution example. Educational research context, NOT a dosing recommendation or medical advice. Covers compounds with a /dosing page; others return matched compound with has_dosing_guide:false.

vendor

check_vendor

PepEvolution's independent audit of a research-peptide vendor: PepScore grade + band, COA status, audit summary, and buy link for graded vendors; the COA-audit record (status, risk flags) for vendors audited but not graded; or a clear "not evaluated". Strict matching: generic words like "peptides" or "labs" never match, and ambiguous names return candidates instead of a guess.

verified

list_verified_vendors

Every PepEvolution-graded research-peptide vendor, sorted by PepScore desc. On a score tie the non-affiliate ranks first. Each entry carries grade + band, COA status, buy link, coupon, and is_affiliate.

Endpoints

URL	Transport	State	Latency	Checked
https://pepevolution.com/mcp	streamable-http	answering	162 ms	11 min ago

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answering

PepEvolution Peptide Sources — questions

Answers built from our own checks of this server.

What can PepEvolution Peptide Sources do?

It exposes 7 tools, read directly from the server on our last check. Among them: calculate_reconstitution, check_vendor, find_peptide_sources, get_compound_grade, get_dosing_guide, get_peptide_price and 1 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is PepEvolution Peptide Sources working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 178 ms. The bar chart above shows every period we have measured.

How do I connect PepEvolution Peptide Sources?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does PepEvolution Peptide Sources need an API key?

No. PepEvolution Peptide Sources completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is PepEvolution Peptide Sources?

It answers our handshake in 178 ms on average, which is faster than 77% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.