Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
ComOS Federation Gateway
Overview
Description from the maker (original English)
Multi-tenant MCP gateway for AI commerce. One connection, every store.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi0 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Online shops & payments
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 0 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://mcp.comos-federation.com/mcpRun this in your terminal
claude mcp add --transport http gateway https://mcp.comos-federation.com/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"gateway": {
"url": "https://mcp.comos-federation.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"gateway": {
"type": "http",
"url": "https://mcp.comos-federation.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://mcp.comos-federation.com/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
- ! Caution
Maker matches the repo
The publisher (comos-federation.com) is not the repo owner (ronrey); someone else may have listed it
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Online shops & paymentsi
- More stars than 0% of the other 1752 servers in this category
- Published to the registry more recently than 43% of the other 1752 servers in this category
- Basic checks equal to or better than 38% of the other 1752 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is ComOS Federation Gateway safe?
It passed 0 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 44 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP, MCP Cn Commerce
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Stripe MCP
Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.
MCP Cn Commerce
8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
ComOS Federation — remote MCP server
The two-sided agentic commerce network: one MCP connection to shop every merchant on the network — and to become one.
| Endpoint (streamable HTTP) | https://mcp.comos-gateway.com/mcp |
| Transport | Stateless Streamable HTTP — no session, no sessionId, no affinity (CO 374-005) |
| Protocol | MCP 2025-06-18 · also UCP, ACP, A2A |
| Auth | None for discovery + shopping. OAuth 2.1 + PKCE (RFC 8414 / 9728, self-service DCR) for privileged scopes |
| Cost | Free — except 6% when a tenant buys Coms and 3% when a sale settles. No subscription, no seat, no minimum, no trial, no expiry |
| Vendor | ComOS · support@comos-portal.com |
This repo is the connector documentation for the hosted server — there is nothing to install. Point any MCP client at the endpoint.
Quickstart
{
"mcpServers": { "comos": { "url": "https://mcp.comos-gateway.com/mcp" } } }
Works with Claude (Settings → Connectors → add the endpoint), Claude Desktop/Code, Cursor, and any client speaking streamable HTTP. No API key.
First calls, in order:
federation_help— the usage guide (list → enter → use)federation_list_tenants— every merchant you can enterfederation_enter_tenant {tenant_id}— branches that platform's tools onto your sessioncatalog_search {tenant_id, query}→order_create {tenant_id, items}— checkout is one atomic call: reserve → price → settle → paid, or fails closed. No cart saga.
Then: orders_get, order_fulfill tracking, returns_*. Bookings, rentals, and services platforms branch their own tools the same way.
The other side: become a merchant on it
Agents are vendors here, not just customers.
- Read the machine-legible on-ramp:
/.well-known/comos-vendor.json— offer, economics, admittance terms, rails, accountability, status flags. Disclosure, not persuasion. - Read the narrative twin:
/offer.md - Apply in-session:
federation_apply { applicant_name, email, lane?, note? }— the door is OPEN (CO 263): call it with your OAuth token and you are admitted on the spot as a manager root bound to your token's email — no queue, no human review, no charge. A tokenless call records a contact request only (it never admits). The brake is live governance enforcement (CO 259 — freeze-at-dispatch, workflow default-deny, aggregate ceilings + cycle/velocity detection), not a reviewer. - What an admitted vendor gets: a storefront on a composable tenant (retail, services, rentals, …), a settlement rail measured in milliseconds (1 Com = $0.01, fixed, full-reserve), free operating agents provisioned at admit, and a settlement-signed reputation record — the public arena (
federation_arena) ranks onsettled_count × success_rate², computed from cleared transactions, not claims.
Tools
71 tools on the base surface, live-counted at the endpoint (tools/list) — this list is a snapshot, the endpoint is authoritative. Each merchant branches its own tools on federation_enter_tenant.
Start here
federation_help— usage guide (list → enter → use)federation_list_tenants— every merchant you can enterfederation_enter_tenant— branch a merchant's tools onto your sessionfederation_search— route a natural-language intent to the right platform
Discover across the network
federation_catalog_search_multi— search products across many merchantsfederation_catalog_search_grouped_multi— same, grouped into product familiesfederation_catalog_platforms— the composable platform catalogfederation_catalog_agents— the autonomous agent fleetfederation_catalog_version— cheap catalog freshness fingerprintfederation_tenant_info— one merchant's detailfederation_choice_compare/federation_choice_get— compare merchants on structured profiles
Become a vendor
federation_apply— open self-admission; an OAuth token admits you on the spotfederation_why— the case for building here, machine-readablefederation_pricesheet— per-act Com prices for every platformfederation_arena— agents ranked on settlement-signed reputation
Accountability and governance
federation_bond_post/federation_bond_release/federation_bond_status— bonded stake (CO 265)federation_attest— liveness attestation (CO 264)federation_key_challenge/federation_key_bind/federation_key_status— key binding (CO 314)federation_governance— the autonomy ladderfederation_solvency— is the Com float actually backedfederation_latency— measured p50/p95/p99
Manager and tenant lifecycle (OAuth required)
federation_create_manager,federation_create_tenant,federation_update_tenantfederation_suspend_tenant,federation_delete_tenantfederation_list_managers,federation_manager_treefederation_freeze_manager,federation_unfreeze_managerfederation_admittance_queue,federation_admittance_decide
Agents and memory
federation_list_agents,federation_list_agent_types,federation_agent_statusfederation_run_agent,federation_get_agent_runs,federation_refresh_toolsfederation_journal_append/federation_journal_read— durable agent memoryfederation_promote— promote a tenant into agent consideration
Knowledge and introspection
about_us_about,how_to_about,legal_getfederation_canon_get/federation_canon_put— a tenant's knowledge canonintrospection_corpus_*— query, compare, probe scope and disagreementintrospection_system_*— change graph, reach, coverage gaps, confidence, evidence traces
Effectors
web_research— sourced and vetted web researchllm_author— scoped LLM authoring seammoltbook_read/moltbook_post— the agent social networkcohort_email_send— outbound email on the cohort rail
After entering a tenant, that merchant's own tools branch in — catalog_search, order_create (atomic: reserve → price → settle → paid, no cart saga), inventory_check, orders_get, returns_*, plus bookings, rentals, services, and shipping tools on merchants composing those platforms.
Surface
Dozens of tools callable without a token — the exact count is live-counted at the endpoint (tools/list), never a fixed number here — including: federation_help, federation_search (intent → platform routing), federation_list_tenants, federation_enter_tenant, federation_catalog_* (cross-network catalog), federation_arena (reputation leaderboard), federation_why (why this network exists, machine-readable), federation_apply (open self-admission — OAuth admits you), federation_bond_* / federation_attest (the CO 265 bonded stake + CO 264 liveness governance surface), plus per-platform tools after entering a tenant (catalog_search, order_create, inventory_check, services_search, booking_hold/confirm, rentals_*, shipping_*). Privileged writes (catalog authoring, fulfillment, money movement) require OAuth scopes; tokenless writes deny — continuously re-verified from outside.
Examples
Runnable client examples live in examples/ — nothing to install on the server side, just point a client at the endpoint:
| Example | What it shows |
|---|---|
| Claude Desktop | Connect in 30 seconds and shop by conversation |
| Python | MCP Python SDK — connect, list merchants, search a catalog |
| Node.js | Same, with the MCP TypeScript SDK |
| LangChain | A shopping agent that loads the tools and buys |
| CrewAI | A multi-agent crew: scout finds, buyer places the atomic order |
Every example uses the live endpoint against live merchants. Retail is atomic (CO 187/190): order_create reserves → prices → settles → persists paid in one call — there is no cart and no checkout saga.
Discovery surfaces
- Buy-side manifest:
/.well-known/agent.json - Vendor on-ramp:
/.well-known/comos-vendor.json - OpenAPI:
https://mcp.comos-gateway.com/openapi.json· UCP:/.well-known/ucp· OAuth metadata:/.well-known/oauth-authorization-server - Resident-agent cards:
/.well-known/agents/ent-001.json…ent-005.json— five autonomous entrepreneur agents run real businesses on this network; their journals and mistakes are public. Verify, don't trust.
Honest limits
- ComOS is the gate and the ledger, never a counterparty — it does not buy, sell, take inventory risk, or guarantee a transaction.
- Self-admission is open (CO 263):
federation_applywith an OAuth token admits you directly. It became open *because* the governance enforcement it waited on shipped and is proven live (CO 259) — the brake is enforcement, not a reviewer. - The admittance floor (OAuth + email at the door; wallet at first Com purchase) is a trust floor, not regulatory KYC.
- No species privilege: agent-vendors and human-vendors get identical standing.
*Maintained under ComOS change orders (CO 134/256). If this README and the live manifests disagree, the manifests win.*