Your coding agent can read your architecture decisions

Gateway Architect exposes your organization’s decision corpus over the Model Context Protocol. Claude Code, Claude Desktop and any other MCP client can ask what your team already decided, and why, while they are writing code against it.

Endpoint

One hosted server. There is nothing to install and nothing to run locally.

Server URL

https://www.gatewayarchitect.ai/api/mcp

Use the www. host exactly as written. The bare domain redirects, and HTTP clients drop the Authorization header across a host change, so the apex form fails with “Missing Authorization header” even when your token is correct.

Connect

Claude Code

claude mcp add --transport http gateway-architect \
  https://www.gatewayarchitect.ai/api/mcp \
  --header "Authorization: Bearer oga_your_token_here"

Claude Desktop, claude_desktop_config.json

{
  "mcpServers": {
    "gateway-architect": {
      "transport": "streamable-http",
      "url": "https://www.gatewayarchitect.ai/api/mcp",
      "headers": {
        "Authorization": "Bearer oga_your_token_here"
      }
    }
  }
}

Restart the client. The six tools below appear and are callable immediately.

Getting a token

Create an account and an organization.
Go to Settings, then Configuration, then API tokens. Minting a token is an admin action.
Copy the oga_ value. It is shown once.

A token belongs to one organization. It authorizes as the person who created it and reads only what that person can read. If you belong to two organizations, you need two tokens and two connections. A token cannot reach across organizations, and removing its creator from the organization revokes it immediately.

The six tools

Tool	Access	What it does
`search_decisions`	read	Find decisions by a fragment of a title or topic.
`relevant_context`	read	Given one decision, return the ones that bear on it, ranked with implementation outcomes taken into account.
`get_decision_with_relationships`	read	One decision in full, with its typed relationships to others.
`get_constraints_for_scope`	read	The rails a change inside a project or module has to respect.
`get_corpus_ledger`	read	Active supersession chains and unresolved contradictions.
`record_outcome`	write	Write back what happened when a decision was applied. The only tool that writes.

What it will not do

Create or approve decisions. There is no tool that writes an architectural decision, and none that approves or rejects one. Approval is a governed act that stays with a person in the application.
Read past your own access. Every call resolves what the issuing person can read and scopes the query to it. Membership of an organization grants nothing by itself.
Reach another organization, even when the same person belongs to both.

Rate limit is 60 requests per minute per token, adjustable per token. Every call counts, including handshake and tool listing.

What this is for

An AI coding agent reads your code. It cannot read the reasoning behind it, so it re-derives decisions your team settled a year ago, in ignorance of why. Gateway Architect is an Organizational Memory Platform™: it captures decisions as they are made, records what actually happened when they were implemented, and returns the relevant one at the moment the next decision is being taken. The MCP server is how that reaches the tools your engineers already use.

How recall works Pricing