PeptidesDirect

EU research-peptide supplier with independent, third-party per-batch lab testing (Certificates of Analysis) and open, source-cited reference tools for the research community.

• Shop: https://peptidesdirect.io
• Independent lab reports (CoAs): https://peptidesdirect.io/coa
• Peptide purity database: https://peptidesdirect.io/purity
• Study reference and research tools: https://peptidesdirect.io/research
• GLP-1 / GIP clinical-trial tracker: https://peptidesdirect.io/research/glp-1-trials
• Research blog: https://peptidesdirect.io/blog

Open-source tools

• Reconstitution calculator: https://github.com/peptidesdirect-io/peptide-reconstitution-calculator (live demo: https://calc.peptidesdirect.io)
• Molarity calculator: https://github.com/peptidesdirect-io/peptide-molarity-calculator
• Unit converter: https://github.com/peptidesdirect-io/peptide-unit-converter

For developers and AI agents

• Partner / reseller order API, TypeScript client and example: https://github.com/peptidesdirect-io/partner-api-example
• x402 payments (USDC on Base) for agents, TypeScript example: https://github.com/peptidesdirect-io/x402-payment-example
• Agent access (Markdown pages, MCP server, discovery files, x402): https://peptidesdirect.io/llms.txt

All products are sold for laboratory and research use only.

A look around

Reconstitution calculator	Independent lab reports
Product pages with per-batch CoA	Research blog