Peptlas: is this peptide legal?

com.peptlasPublished by peptlas.comOfficial publisherv1.1.0Updated Oct 24, 2026

Legal status of peptides and GLP-1 drugs in the US, UK, EU, Australia, Canada, Brazil and sport.

VerifiedStreamable HTTPWeb executableLocation & LifestyleFinance

Overview

AI-generated overview

A remote, read-only MCP server that lets an assistant look up the legal status of peptides and GLP-1 drugs across several countries and under WADA rules.

What you can do
Check the legal status of one peptide, GLP-1 drug or seller-named blend in the US, Australia, UK, EU, Canada, Brazil and sport, or in one named place, with primary sources and verification dates. List every tracked compound in a given country, region, regulator or sport, optionally filtered to one status. See the 26 compounds and 3 blends covered, including brands, codes and street names. Review dated regulatory events from the changelog, newest first, optionally for one compound or since a date.
When to use it
Useful when a question turns on whether a specific peptide, GLP-1 drug or blend is legal or banned in a particular country or in sport, or when you need recent regulatory changes such as FDA advisory votes, list changes or warning letters.
Requirements
A remote endpoint at peptlas.com/mcp, added as a custom connector or HTTP MCP server in the client; no account, API key or environment variable is needed. A local stdio option is available through npx for clients that only run local servers, and it loads data from peptlas.com at start-up.
Before you install
All tools are read-only and no account or cookies are used. The statuses describe the law, not safety, efficacy or dosing, and are not legal or medical advice; the server recommends no products or sellers. Data is CC BY 4.0 and reuse requires crediting Peptlas and linking the compound page.

Installation

In SourceWeft

  1. Open Peptlas: is this peptide legal? in the dashboard and add it to a workspace.
  2. 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.peptlas%2Flegal-status/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": {
    "peptlas-is-this-peptide-legal": {
      "type": "http",
      "url": "https://peptlas.com/mcp"
    }
  }
}

README

Peptlas MCP server: is this peptide legal?

Ask Claude, ChatGPT, Cursor or any MCP client whether a peptide is legal, and it answers from Peptlas, the peptide legal status atlas. You get the status in the United States (FDA), Australia (TGA), the UK (MHRA), the EU (EMA), Canada (Health Canada), Brazil (ANVISA) and sport (WADA), with the primary source and the date it was last verified.

Free, read-only, no account. Setup guide: peptlas.com/mcp-server.

Connect

The hosted server needs no install:

https://peptlas.com/mcp

  • Claude (claude.ai and the desktop app): Settings, then Connectors, then Add custom connector, with the address above.

  • Claude Code: claude mcp add --transport http peptlas https://peptlas.com/mcp

  • Cursor (.cursor/mcp.json) and other clients that read mcpServers:

    json
    { "mcpServers": { "peptlas": { "url": "https://peptlas.com/mcp" } } }

  • VS Code (.vscode/mcp.json):

    json
    { "servers": { "peptlas": { "type": "http", "url": "https://peptlas.com/mcp" } } }

  • Local (stdio), for clients that only run local servers: npx -y github:Peptlas/peptlas-mcp. It loads the current data from peptlas.com once at start-up.

Tools

ToolAnswers
check_legal_statusIs this peptide legal? One compound or blend (KLOW, GLOW, the Wolverine stack), everywhere Peptlas tracks or in one place you name, with the U.S. answer in full (compounding rules, the latest FDA advisory vote, the next dated event), primary sources and the date it was last verified.
status_in_placeWhat is legal in a country? Every tracked compound in one place: a country, region, EU member state, regulator or "sport".
list_compoundsThe compounds Peptlas tracks, with the names people search by: brands, codes and street names.
recent_changesDated regulatory events, newest first: FDA votes, list changes, comment deadlines, warning letters.

Compounds resolve by name, brand, code or street name ("BPC-157", "Ozempic", "TB500", "reta"), and blends by their sellers' names ("KLOW", "GLOW 70", "Wolverine stack"). A blend is never more legal than its least legal ingredient, so each place takes its strictest one. All tools are read-only.

Try asking

  • Is BPC-157 legal in Australia?
  • Is KLOW legal in the UK?
  • Can a U.S. pharmacy still compound semaglutide?
  • Which peptides does WADA ban?
  • What changed with retatrutide this month?

Compounds covered

Each name links to its page on peptlas.com, with every primary source:

AOD-9604 · BPC-157 · Cagrilintide · CJC-1295 · Dihexa · Emideltide (DSIP) · Epitalon · GHK-Cu · Ipamorelin · Kisspeptin-10 · KPV · LL-37 · Melanotan II · MOTS-c · NAD+ · PT-141 (bremelanotide, Vyleesi) · Retatrutide · Selank · Semaglutide (Ozempic, Wegovy) · Semax · Sermorelin · SS-31 (elamipretide, Forzinity) · TB-500 · Tesamorelin (Egrifta) · Thymosin Alpha-1 · Tirzepatide (Mounjaro, Zepbound)

Blends, worked out from their ingredients: KLOW · GLOW · Wolverine stack (all blends). Pending FDA decision: Is CagriSema approved?

The short answer for all of them is on Are peptides legal?. Every status side by side is in the country-by-country grid. Brazil has its own Portuguese pages.

The data

The answers come from the same data as every page on peptlas.com: atlas.json, rebuilt with each update.

  • How it's kept current: official sources are checked every six hours, and no status changes until a person has checked the primary source (how Peptlas tracks it). Every change is dated in the public changelog.
  • Data: CC BY 4.0. Credit Peptlas and link the compound page.
  • Code: MIT.
  • Not advice: the statuses describe the law, not safety, efficacy or dosing. Nothing here is legal or medical advice, and Peptlas recommends no products or sellers.
  • Privacy: no account, no cookies. Your questions are neither stored nor logged by Peptlas.

The hosted endpoint runs this code (src/) as a Cloudflare Pages Function. It is listed in the official MCP Registry as com.peptlas/legal-status.

Made by the Peptlas Research Team. peptlas.com is the neutral, source-linked atlas of peptide legal status.

Source: README.md at commit b0199b8

Tools

4

status_in_place

What is legal in a country?

Every tracked peptide in one place, with its status and a note: use it for "which peptides are legal in Australia" or "what does WADA ban". Optionally only one status.

Parametersplacerequiredstatus

list_compounds

List compounds

The 26 compounds and 3 blends Peptlas tracks, with the names people search by (brands, codes, street names), each U.S. status and its page. Use it to see what is covered.

Parametersus_status

recent_changes

Recent changes

Dated regulatory events from the Peptlas changelog, newest first: FDA advisory votes, list changes, comment deadlines, warning letters. Optionally for one compound (or a blend, meaning all its ingredients) or since a date. Use it for "what changed" or "any news on BPC-157".

Parameterslimitsincecompound

Version history

2
  1. v1.1.0LatestOct 16, 2026
  2. v1.0.0Oct 9, 2026

Score

100% 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
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts