MCP.Market

Peptide Library MCP server

online · 100% uptime
by peptidelibrary.app·app.peptidelibrary/peptide-library·v1.0.1

Peptide research profiles, evidence by tier, comparisons and educational content. No dosing.

B80/100grade B
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Safety scan
B80/100

full report

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Growing

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Peptide Library tools (10)

write = sends, deletes, buys or posts
  • blend_concentrationsFree

    For several components dissolved together in one volume: each component's concentration and its share of the blend by amount. Arithmetic only; it says nothing about whether components can or should be combined.

  • compare_peptidesFree

    Side-by-side research comparison of 2-3 peptides on structured profile fields: mechanism and targets, research areas, evidence level and human-trial availability, safety and side effects, FDA/WADA status, half-life and studied routes, with references. Each row says whether the values are the same, different, partial, not comparable or incomplete; missing data is never filled in and the comparison never ranks peptides. Suitable for tables. No dosing information.

  • convert_unitsFree

    Convert an amount between mg and mcg exactly. IU ↔ mass conversion only works with a peptide whose profile documents an IU-per-mg factor (pass `peptide`); otherwise the result is an iu_factor_missing issue, never an assumed factor. Pure arithmetic: not a dosing recommendation.

  • cost_per_amountFree

    Price arithmetic for a purchase: total cost (price plus optional shipping) and cost per mg, per mcg and (with a peptide's documented factor) per IU. Uses only the numbers given; it never estimates prices or shipping and converts no currencies.

  • get_peptide_categoriesFree

    List the Peptide Library research categories (e.g. GLP-1/Metabolic, Cognitive, Longevity) with a description, the number of profiles and every profile in each, with links. Use a category id with search_peptides to filter.

  • get_peptide_detailsFree

    Full educational research profile for one peptide: classification, mechanism and targets, research areas, evidence by tier (regulatory label, controlled human trials, other human studies, secondary reports, animal and in-vitro research) with cited sources, safety and side effects, regulatory status (FDA, WADA), review dates and the canonical Peptide Library URL. Fields the profile lacks are "not_documented". Dose figures and administration instructions are never included.

  • get_research_trendsFree

    This week's most-researched peptides in the Peptide Library community (Trending Now, last 7 days): rank, share of researchers and growth as percentages, with what moved. Aggregate and privacy-preserving: no head counts, no individual activity, small cohorts suppressed. Popularity is not evidence of safety or effectiveness.

  • search_peptidesFree

    Search the Peptide Library research database by name, synonym or alias (fuzzy), optionally filtered by research category or research area. Returns short educational profiles with evidence level and the canonical Peptide Library URL. Use get_peptide_details for the full profile. No dosing information.

  • search_researchFree

    Search Peptide Library's own educational content: the site FAQ, per-peptide FAQs, published articles and free courses. Returns titles, short snippets and links with source attribution (no full text, no third-party articles). Dosing, reconstitution and injection guides, and content about buying, vendors or prices, are excluded.

  • solution_concentrationFree

    Concentration of an amount dissolved in a volume of liquid (amount ÷ volume), as mg/mL, mcg/mL and, with a peptide's documented factor, IU/mL. Pure arithmetic on the given numbers: it does not suggest amounts, volumes or how to prepare anything.

Public scan report

scanner v0.1.10 · 2026-10-15 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 8053ms12/20
  • Tool poisoning10 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10
Overall 80/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Peptide Library compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
80/100
higher than 60% of 48,255 servers
Tools
10
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
299 ms
faster than 48% of 30,031 servers

What its tools let an agent do: 10 read

Install Peptide Library in Claude Code, Cursor or VS Code

claude mcp add --transport http peptide-library https://peptidelibrary.app/mcp
Add to Cursor

What the publisher says

From the Peptide Library repository's README, as published. We do not edit it. Read it on GitHub

Peptide Library MCP Server

A remote Model Context Protocol server providing structured peptide research information, educational comparison tools, and research resources for compatible AI assistants.

Website: https://peptidelibrary.app Server URL: https://peptidelibrary.app/mcp Documentation: https://peptidelibrary.app/developers/mcp

The server is hosted by Peptide Library. It is free, anonymous and read-only: no account, no API key and nothing to install. This repository holds its public documentation, client configuration examples and registry metadata; the server itself runs from Peptide Library's private codebase.

What it does

Resources: peptidelibrary://categories, peptidelibrary://evidence-levels, peptidelibrary://methodology, peptidelibrary://glossary, peptidelibrary://disclaimer, peptidelibrary://peptide/{id}.

Prompts: comparepeptideresearch, summarizepeptideevidence, explainmechanism, findresearchtopics, understandresearch_limitations.

Every result includes the Peptide Library URL it came from and a research-use disclaimer. Fields the library doesn't have are returned as not_documented.

What it will not do

  • Give doses, regimens, cycles, reconstitution or injection instructions.
  • List vendors, prices or purchase links.
  • Read or change any account or personal data.
  • Rank peptides or invent studies or citations.

Research and educational use only. Not medical advice. Peptide Library does not sell peptides.

Connect

Claude (claude.ai and Claude Desktop)

Customize → Connectors → Add custom connector → name Peptide Library, URL https://peptidelibrary.app/mcp. On Team and Enterprise plans an owner adds it under Organization settings → Connectors. Free plans allow one custom connector.

Claude Code

claude mcp add --transport http peptide-library https://peptidelibrary.app/mcp

ChatGPT

Where your plan or workspace allows custom MCP servers: Plugins → + → Add custom MCP server → URL https://peptidelibrary.app/mcp, Authentication No authentication → Create as a plugin. Then type @ in a chat to use it. See examples/chatgpt.md.

Cursor

~/.cursor/mcp.json (or .cursor/mcp.json in a project): examples/cursor-mcp.json

{ "mcpServers": { "peptide-library": { "url": "https://peptidelibrary.app/mcp" } } }

VS Code

.vscode/mcp.json: examples/vscode-mcp.json

Cline

Cline → MCP Servers → Configure MCP Servers, then add the entry from llms-install.md ("type": "streamableHttp", "url": "https://peptidelibrary.app/mcp"). Agents installing the server can follow that file directly.

Any MCP client

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Peptide Library: common questions

Is Peptide Library MCP server safe?
Mostly: it is graded B (80/100). Read the Peptide Library safety report
How do I install Peptide Library?
It runs remotely at peptidelibrary.app. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Peptide Library need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Peptide Library maintained?
The last commit was 20 days ago (2026-10-15). The latest release is v1.0.1.
Is Peptide Library up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Peptide Library compare with other MCP servers?
safety score 80/100 (higher than 60% of 48,255 servers); tools 10 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.