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accounted/claude-plugin/CONNECTORS.md
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Connectors

This plugin bundles exactly one connector: the Accounted MCP server, the same server that backs the Accounted connector in Claude.ai and the accounted-mcp stdio bridge.

Connector Server Auth What it reaches
Accounted https://app.accounted.se/api/extensions/ext/mcp-server/mcp?tool_namespace=accounted OAuth 2.1 (PKCE). One-click consent: all scopes pre-selected (adjustable in a fold); every write still stages for explicit approval before it touches the ledger. The user's own companies in Accounted: ledger, transactions, invoices, VAT, payroll, reconciliation, year-end.

One-click add on claude.ai (opens the Add custom connector dialog prefilled; the params are connectorName/connectorUrl):

https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Accounted&connectorUrl=https%3A%2F%2Fapp.accounted.se%2Fapi%2Fextensions%2Fext%2Fmcp-server%2Fmcp%3Ftool_namespace%3Daccounted%26client%3Dclaude-connector%26auth%3Drequired

Pair the link with a starter prompt the user pastes as their first message. It stays copy-paste ready for everyone because it points the agent at what it already knows (Claude memory, earlier chats) instead of containing the user's own data; the server-side onboarding skill carries the rest of the flow:

Sätt upp mitt företag i Accounted och följ kopplingens onboarding-guide. Utgå från det du redan vet om mig och mitt bolag och fråga bara efter det som saknas. Håll det kort.

How the connection works

  • Lazy authentication. The server answers initialize, tools/list and the documentation tools (accounted_search_tools, accounted_list_skills, accounted_load_skill) without any credentials. The first company-scoped call returns an authentication challenge, which Claude Code surfaces as /mcp → authenticate and Claude.ai as an inline Connect prompt. auth=required on the URL (the share link above carries it) turns lazy authentication off for that URL: every tokenless request, initialize included, answers the challenge. That is what claude.ai's Add-custom-connector dialog needs, because it probes the URL without credentials and only reads a 401 as OAuth.
  • Adding it by hand in Claude.ai (Settings → Connectors → Add custom connector): paste the URL with auth=required; the dialog then detects Authentication "Always required" and OAuth client "register one automatically" (DCR); the server does not advertise CIMD yet. Without the flag the dialog auto-detects "None" (the lazy handshake looks authless to it) and the choice must be overridden to "Required when the server asks". No extra headers, Streamable HTTP.
  • Account creation inside the sign-in. A user who has no Accounted account creates one on the sign-in screen the challenge opens (BankID or e-mail + 2FA). No visit to the website first. /accounted:setup walks the whole flow, including creating the company from the conversation.
  • Every write is staged. Write tools create a pending operation with a preview; nothing is booked until the user approves, either in chat via accounted_approve_pending_operation or in the web app.
  • Data stays in the user's tenant. The connector only ever sees companies the signed-in user is a member of, enforced server-side per call.

Self-hosted Accounted

Point the plugin at your own instance: remove the bundled server and add yours with claude mcp add --transport http accounted "https://your-host/api/extensions/ext/mcp-server/mcp?tool_namespace=accounted". The same OAuth flow, skills and commands apply.