Peptide Library
Free peptide research library: evidence-tiered profiles, public API, MCP server.
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Peptide Library is an independent, educational research reference for peptides — evidence-tiered profiles with cited sources, a live peptide price index, free REST API (OpenAPI), and hosted MCP server (https://peptidelibrary.app/mcp). Research and education only; not medical advice; no dosing guidance. Built by Superfime LLC. Freemium.
Contact: Ryan De La Uz · ryan@superfime.com
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The vendor comparison is the most useful part: offers are ranked by price per mg rather than vial price, and the page states that coupons and affiliate links do not change the order. The profiles are tied to PubMed identifiers and registries, and there is a free calculator that needs no account. One thing to watch is the ratings, since the DSIP table shows most vendors with no reviews and a 5.0 resting on a single review, so the platform average of 5.0 says little and a minimum review threshold or a confidence label would make rankings more honest. The research use only and not for human consumption notices sit next to an injection volume calculator and tracking of weight and body fat, which feels contradictory, so the positioning deserves a clearer, consistent explanation. The hero uses busy promotional phone graphics full of text, and a real screenshot of the comparison table would show the product better.