app.peptidelibraryPublished by peptidelibrary.appOfficial publisherv1.0.1Updated Oct 24, 2026
Peptide research profiles, evidence by tier, comparisons and educational content. No dosing.
Remote, read-only MCP server that gives an assistant structured peptide research profiles, evidence tiers, comparisons and educational content.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
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/app.peptidelibrary%2Fpeptide-library/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.Add this to your client's mcpServers config.
{
"mcpServers": {
"peptide-library": {
"type": "http",
"url": "https://peptidelibrary.app/mcp"
}
}
}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.
Resources: peptidelibrary://categories, peptidelibrary://evidence-levels, peptidelibrary://methodology, peptidelibrary://glossary, peptidelibrary://disclaimer, peptidelibrary://peptide/{id}.
Prompts: compare_peptide_research, summarize_peptide_evidence, explain_mechanism, find_research_topics, understand_research_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.
Research and educational use only. Not medical advice. Peptide Library does not sell peptides.
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.
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/mcp.json (or .cursor/mcp.json in a project): examples/cursor-mcp.json
.vscode/mcp.json: examples/vscode-mcp.json
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.
Streamable HTTP at https://peptidelibrary.app/mcp, no authentication. Generic config: examples/mcp.json.
readOnlyHint: true).GET https://peptidelibrary.app/mcp/health.No account and no personal data. Peptide Library keeps daily counts of requests, tool calls, errors and the client name your assistant reports; it does not store tool arguments, results or IP addresses. The hosting provider processes IPs to apply rate limits. Full policy: https://peptidelibrary.app/privacy#mcp-server
Profiles follow Peptide Library's editorial policy and methodology: claims cite PubMed, DOI, trial registries and FDA or WADA records, and evidence is labelled by kind.
The same research data (plus the vendor directory and prices, with a free key) is available as a REST API for apps and scripts: https://api.peptidelibrary.app/v1, with an OpenAPI 3.1 spec, Postman collection and TypeScript and Python SDKs. Docs: https://peptidelibrary.app/developers · Repo: https://github.com/ryandelauz/peptide-library-api
Documentation and examples in this repository: MIT. The hosted service and Peptide Library content are subject to the terms of service.
Source: README.md at commit f3ec757
Search peptides
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.
limitqueryoffsetcategoryresearch_areaGet peptide research profile
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.
peptiderequiredCompare peptides
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.
peptidesrequireddimensionsSearch research content
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.
limitqueryrequiredtypesList research categories
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.
Takes no parameters.
Get research trends
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.
Takes no parameters.
Convert peptide amount units
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.
torequiredfromrequiredamountrequiredpeptideSolution concentration
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.
unitrequiredamountrequiredpeptidevolume_mlrequiredBlend concentrations
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.
volume_mlrequiredcomponentsrequiredCost per amount
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.
pricerequiredpeptidecurrencyshippingamount_unitrequiredpackage_countamount_per_packagerequired100% 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.
claude mcp add --transport http peptide-library https://peptidelibrary.app/mcp{ "mcpServers": { "peptide-library": { "url": "https://peptidelibrary.app/mcp" } } }npx -y @modelcontextprotocol/inspector --cli https://peptidelibrary.app/mcp --transport http --method tools/list