Expensify integration

Expensify integration for AI agents.

Expensify integration for AI agents with secure authentication and server-side credential injection. Open Connector runs the OAuth, seals the token in an encrypted vault, and serves Expensify tools to your agent over MCP or a typed API — credentials injected server-side, every call audited, nothing leaving your infrastructure. Open source (AGPL-3.0) and self-hostable.

What your agents can do

Real Expensify actions, managed and audited.

Your user connects Expensify once; your agent can then secure AI-agent actions — scoped to the OAuth permissions you grant and the tool allowlist you configure. Every action is least-privilege and written to a tamper-evident audit trail.

  1. 1

    Your user grants Expensify access once (OAuth) — the token lands in the vault.

  2. 2

    Your agent calls a tool over MCP or the typed API; Open Connector injects the credential server-side.

  3. 3

    Every routed call appends a hash-chained audit record — nothing leaves your infra.

Available tools

Expensify tool surface.

The following managed tool groups are exposed by this integration. Each item is surfaced as tool metadata so agents can discover safe actions and build reliable workflows.

Expensify tools
Secure AI-agent actions.
FAQ

Expensify integration, answered

How do AI agents use Expensify through Open Connector?
Your user connects Expensify once with one of its cataloged authentication methods. Open Connector stores the credential in an encrypted vault and exposes Expensify tools to your agent over MCP or a typed API, with credentials injected server-side on each call.
Is this a Expensify MCP server?
Yes. Open Connector can serve Expensify as a named MCP server with a scoped allowlist and a per-user connection URL, so any MCP client can call Expensify actions with credentials injected server-side.
Where do Expensify credentials live?
In your own infrastructure. Open Connector keeps credentials in its own vault and injects them at call time, so they never leave your environment.

Give your agents Expensify — keep the keys.

Open source, self-hostable, with Expensify credentials that never leave your infrastructure. Run it from source today.