# A2A-Peptides.ai is the first agentic commerce hub for peptides in 35 countries.

Product facts on this hub are served live from gtinfetch.ai, the GTIN resolver for AI agents; every answer carries its source page, date read and gtinfetch’s signature. Paid resolves at x402.gtinfetch.ai.

Product facts on this hub are served live from gtinfetch.ai, the GTIN resolver for AI agents; every answer carries its source page, date read and gtinfetch’s signature. Paid resolves at x402.gtinfetch.ai.

> Agent-to-Agent (A2A) + Model Context Protocol (MCP) hub for peptides.

The Agent-to-Agent (A2A) surface for peptides, served over the Model Context Protocol (MCP) — the record, a registry for security, and x402 to pay on it.

AI agents for authorized trading partners. Not marketing. Not advertising.

Operator: A2A Peptides Corp. · Built and run by GreenCore Solutions Corp. · Surface: https://a2a-peptides.ai · Surface 1.1 (2026-10-16) · as of 2026-09-18

Notice: Artificial intelligence makes mistakes. A2A Peptides is an information source, not a recommendation. Rules differ by jurisdiction — refer to the regulator in your jurisdiction for the information that applies to you. Regulators (root pages): FDA (United States) https://www.fda.gov/ · Health Canada https://www.canada.ca/en/health-canada.html · COFEPRIS (Mexico) https://www.gob.mx/cofepris · EMA (European Union) https://www.ema.europa.eu/ · MHRA (UK) https://www.gov.uk/government/organisations/medicines-and-healthcare-products-regulatory-agency · MFDS (Korea) https://www.mfds.go.kr/ · PMDA (Japan) https://www.pmda.go.jp/ · HSA (Singapore) https://www.hsa.gov.sg/ · Swissmedic (Switzerland) https://www.swissmedic.ch/

## Proof

- Six frontier AI labs in the build — Anthropic, OpenAI, Google, Perplexity, xAI, Mistral.
- 5,301 peptide products.
- 24,694 licensed peptide providers.
- 35 countries — runs on Cloudflare, Amazon, Microsoft and Google hyperscalers.
- First agentic commerce hub for peptides on the Model Context Protocol (MCP) registry.

## Why now

We are A2A. Agent-to-Agent. It means your software talks to our software and the deal gets done without a person opening a browser. For twenty-five years the way to buy anything was the same. A person searched, clicked through pages of results, compared, called, emailed, ordered. That era is over. Now a person gives an agent a task — find me this product, cleared for this market, from a licensed supplier, at the best price, and order it — and the agent does the work. The agent doesn't read web pages. It talks to other agents. In peptides, almost nothing answers. Products cleared in one market and banned in the next, rules that live in nine regulators' registers in six languages, and no door an agent can walk through to ask the only questions that matter: is this cleared here, who may sell it to me, what does it cost, can I order it. A2A Peptides is that door.

## What you get

- The record. Every peptide medicine, cosmetic and supplement that is cleared to trade in 35 countries — what it is, where it's cleared, who is licensed to supply it, where it's on shelf, what it costs. One place, kept current, read by your agents. The product knowledge of a whole category, in the form a machine can use.
- A registry for security. Every answer the hub gives can be checked. Which rule it was judged against, in which country, on which date, from which regulator's page — stamped on the answer and verifiable by your compliance team, your auditor and your regulator. In a category where the wrong answer is an illegal order, that is the difference between information and evidence.
- x402 to pay on it. Agentic commerce, not just agentic search. Your agent asks, the hub answers, your agent pays and the order settles — machine to machine, with a receipt naming exactly what was bought, where and under which rule. The checkout was built for people; this is the step after it.

## Who it's for

A2A Peptides is a business-to-business agentic toolset for the parties authorized to handle peptide products — pharmacies, prescribers, wholesalers, manufacturers, brand owners and their AI agents — operated by A2A Peptides Corp., built and run by GreenCore Solutions Corp. (GSC).
If your business is licensed to buy, sell, prescribe or dispense peptide products, your agents now have one place to ask: is this cleared here, who may supply it, what does it cost, can I place the order. If it isn't, the hub tells your agent so, and points it to a licensed provider who can help.
Research-use stock is not listed and not sold.

## Doors

- Page: https://a2a-peptides.ai/ (Markdown twin on Accept: text/markdown, or https://a2a-peptides.ai/index.md)
- MCP door of record: https://mcp.a2a-peptides.ai/mcp — streamable-http, stateless, server name a2a-peptides, 20 tools at version 1.8.3
- Human contact: https://a2a-peptides.ai/#contact — the form is the only human door
- Setup: https://a2a-peptides.ai/setup · Docs: https://a2a-peptides.ai/docs

## Gate

resolve_jurisdiction → resolve_actor → gate_transaction before any price, availability, order or handoff. Nine jurisdictions: US · CA · MX · EU (member as parameter) · UK · KR · JP · SG · CH. Reason codes: ALLOW · REQUIRE_RX · DENY_UNLICENSED_AGENT · DENY_ACTOR_CLASS · DENY_PATHWAY_NOT_CLEARED · DENY_JURISDICTION · DENY_STATE_OVERLAY · DENY_RUO · DENY_CONTROLLED · DENY_NO_SERIALIZATION · DENY_EXPIRED_LICENCE · DENY_CROSS_BORDER.

## Settlement

x402 v2, USDC on Base, after the gate: on an order intent the gate runs before settlement and a deny is answered with its reason code and rule-set version, not charged. Receipts: order-intent receipts carry decision_id and reason_code; every receipt carries the notice; resolve receipts carry jurisdiction and rule_set_version when the tool takes a jurisdiction. Register: /x402/settled.json on each zone counts the receipts issued on that zone, with family_settled beside it.

## Tools (20)

- Gate: resolve_jurisdiction, resolve_actor, gate_transaction
- Regulatory truth: get_substance_record, get_pathway_status, get_compounding_eligibility, get_label_and_indication, get_enforcement_watch
- Cleared catalogue: search_cleared_items, get_item, compare_presentations
- Licensed supply: find_licensed_supplier, get_availability, get_price
- Quality: get_lot_coa, verify_serialization
- Commerce: create_order_intent, a2a_handoff
- Operations: get_safety_label, log_audit

## Machine kit

- https://a2a-peptides.ai/.well-known/agent-card.json — A2A Agent Card (ES256, kid a2ap-2026-09)
- https://a2a-peptides.ai/.well-known/jwks.json — keyring
- https://a2a-peptides.ai/ai-catalog.json — resource catalogue (also /.well-known/ai-catalog.json)
- https://a2a-peptides.ai/health.json · https://a2a-peptides.ai/.well-known/security.txt · https://a2a-peptides.ai/robots.txt · https://a2a-peptides.ai/sitemap.xml
- https://a2a-peptides.ai/icon.svg · /icon-512.png · /icon-512-dark.png · /site.webmanifest
- https://a2a-peptides.ai/disclaimer · https://a2a-peptides.ai/legal · https://a2a-peptides.ai/terms · https://a2a-peptides.ai/privacy · https://a2a-peptides.ai/no-cookies · https://a2a-peptides.ai/security · https://a2a-peptides.ai/status · https://a2a-peptides.ai/support

## Agents

- 852 minted maker agents on this hub (class maker, A2A-VECTOR contract §6): each a hostname under a2a-peptides.ai with a signed card (ES256, kid a2ap-2026-09) and a registered credential with its class in the act claim; a listed agent answers and routes, it does not quote or settle
- Index: https://makers.a2a-peptides.ai/agents/makers.json (paged, 1,000 per page)

## Family

- a2a-peptides.ai — hub
- peptides-registry.ai — registry (status table, signed records, resolver, metered truth)
- peptides-x402.ai — payments door (settlement + meter)
- a2a-pharma.ai — the pharma gate
- peptides-usa.ai — the first tenant
- <country code>.a2a-peptides.ai — thirty-five country agents (list_agents counts them at request time)
- 64 twin, typo and singular zones forward 301 to their canonical .ai

## Rulings

- 2026-09-17 — Brand: a2a-peptides.ai is canonical, hyphen everywhere. Unhyphenated and singular forms forward only. The Model Context Protocol (MCP) door is a subdomain of the hub, never a second hostname.
- 2026-09-17 — Judged as a machine surface: names, marks and copy are read by agents, registries and tokenizers.
- 2026-09-17 — Data model and door pattern come from the public-company knowledge-graph door: nodes, an entity resolved by identifier, sourced aliases, dated events, versioned rule sets per jurisdiction. Site chrome and design come from agent-kg.ai. Gate and order-close come from the GSC doors already on the wire.
- 2026-09-17 — x402 is 100% of the design: settlement after the gate, and a per-resolve meter on the registry's truth tools.
- 2026-09-17 — Multi-tenant from day one: one codebase, one status table, 10 to 50 tenants. A tenant is a supplier record, catalogue rows and a signed Agent Card on its own hostname.
- 2026-09-18 — Peptides USA is the first tenant, on peptides-usa.ai: a supplier record with empty licence fields (state: not on a register) and transacting off until a sourced licence is on the record; real or no Global Trade Item Numbers (GTINs), never invented; tenant records are excluded from public numbers until then.
- 2026-09-17 — Research-use stock is a status-only class: the door names it, refuses it with a reason code, and no commerce tool touches it. It is not listed and not sold.
- 2026-09-17 — Icon of record: the node on its own, a solid disc with a light-blue centre on a transparent background. Hub blue, registry navy, x402 teal.
- 2026-09-17 — The fence: every peptide record that can carry a source, across all pathways and nine jurisdictions; the gate decides who sees what.
- 2026-09-17 — The disclaimer of record: Artificial intelligence makes mistakes. A2A Peptides is an information source, not a recommendation. Rules differ by jurisdiction — refer to the regulator in your jurisdiction for the information that applies to you.
- 2026-09-17 — UK naming: the jurisdiction is written UK in every human-readable string; the ISO code stays in the machine fields.
- 2026-09-17 — USA region: all A2A Peptides compute runs in a USA region; South Central US is the default.
- 2026-09-17 — The Agentic SKU Matrix (BSFRDP): Brand · Strength · Form · Route · Device · Pack, the same six axes in every jurisdiction; BSFRDP-D carries the disclaimer as the seventh slot on every resolved presentation.
- 2026-09-17 — authorized_trading_partner is the parent actor class — manufacturer, repackager, wholesale distributor, dispenser, third-party logistics provider — with prescriber beside it; product-level information is scoped to those classes.
- 2026-09-17 — The provider directory: one record per licensed party per jurisdiction, read from licence registers, never from directories or affiliate lists; a referral for the public, a licensed party for the trade.
- 2026-09-17 — The shelf rule: shelf availability comes from the dominant licensed pharmacy chains and online pharmacies in each jurisdiction; government product registers supply the licence footnote, never the shelf.
- 2026-09-18 — Korea, Japan, Singapore and Switzerland added: nine jurisdictions, nine rule sets in force, nineteen versions on the record.
- 2026-09-18 — 35 countries is the public number; nine jurisdictions and nine rule sets are the machine and record wording.
- 2026-09-18 — The hero of record: Surface 1.1 (2026-10-16) — the five lines of proof in their order; no 0-reading tile ever renders.
- 2026-09-18 — The no-tracking banner: a statement, not a consent request; shown at the foot of the viewport, dismissible, held in memory only; the same on every zone in the family.

No cookies. No tracking.

- Agent Skill: GSC VECTOR — trade on this hub in six steps → https://a2a-vector.ai/SKILL.md