## What
Adds label filtering to the `search_transactions` MCP tool. It's the one
filter the web transactions view has that the MCP surface was missing.
- New optional `label_ids` array param. Returns transactions carrying
**any** of the given labels (OR-semantics), matching the web app's label
filter (`Transaction::scopeApplyFilters`).
- Combines with the other filters (account, category, date, amount) with
AND, consistent with how the tool already treats them — so `category_id`
+ `label_ids` means "in that category **and** carrying one of these
labels".
- Each returned transaction now also exposes its `labels` (`id`,
`name`), so the agent can see why a row matched, consistent with what
the write tools already return.
## Validation & consistency
- `label_ids` are validated against the space via `labelsInSpace`,
promoted from `WriteTool` to the shared `McpTool` base so read and write
tools use one implementation. An unknown or stale label id now returns
the same actionable *"call list_labels"* error the rest of the MCP
surface gives, instead of a silent empty result.
- The tool `#[Description]` now mentions `label`, so agents discover the
capability without inspecting each param.
## Tests
- `search_transactions` filters by label id (matching row in, unlabelled
row out).
- A foreign/unknown label id is rejected with an error.
- Full MCP read + write suites stay green (26 tests) — confirms moving
`labelsInSpace` to the base didn't regress the write tools.
Pint, Larastan and the affected Pest suites pass locally.
## What & why
Adds a **read-only MCP server** so a paid ("Pro") user can connect
Whisper Money to their own AI assistant (Claude web/desktop, Claude
Code, ChatGPT) and analyse their own finances — spending, cashflow, net
worth, transactions.
This is **Phase 1 (PR1): read-only**. Write tools (create/edit/delete
transactions, categories, labels, rules, balances) are a deliberate
follow-up (PR2); the token plumbing already reserves an `mcp:write`
ability for them.
## How it works
- **Transport:** remote streamable HTTP server via `laravel/mcp`,
mounted at `/mcp` (`routes/ai.php`).
- **Auth:** Sanctum personal access tokens with **MCP-only abilities**
(`mcp:read`). The route is gated by `auth:sanctum` +
`abilities:mcp:read` + `throttle:60,1`, so a future public-API token
(different ability) can't reach it and vice versa.
- **Pro gating** is enforced **per request inside the tools**
(`User::canUseFeature(PlanFeature::McpAccess)`), so a lapsed
subscription stops working on its own without the user revoking the
token. Free users can still create tokens (marked **PRO** in the UI) but
every call returns a "paid plan required" error with an upgrade URL.
- **Consent:** connecting is the consent — a clearly-weighted
data-egress disclaimer + per-client connection instructions on the
settings page. No separate checkbox (by design).
## Tools (all read-only)
| Tool | Scope |
|------|-------|
| `search_transactions` | space-scoped (optional `space`, defaults to
personal) |
| `list_accounts`, `list_categories`, `list_spaces` | space-scoped |
| `spending_by_category`, `get_cashflow`, `get_net_worth` | user's whole
account (reuse existing analytics services/controllers) |
Recurring-charge detection is left to the agent over
`search_transactions` results (no dedicated tool).
## Settings → MCP access
New page to create / rotate / revoke tokens (name + one-time secret
reveal), with `last_used_at`, a PRO badge, the egress disclaimer, and
copy-paste connection instructions for Claude (web/desktop), Claude Code
and ChatGPT.
## Tests
- Tool behaviour + Pro gating + **cross-user / cross-space isolation**
(`tests/Feature/Mcp/McpToolsTest.php`).
- HTTP auth boundary: 401 without a token, 403 without `mcp:read`, 200
with it (`tests/Feature/Mcp/McpEndpointAuthTest.php`).
- Token CRUD + ownership + free-tier creation
(`tests/Feature/Settings/McpTokenTest.php`).
## Reviewed & adjusted
Ran technical + product reviews and applied the fixes: kept PR1 strictly
read-only (dropped a UI scope selector that promised non-existent
write), routed gating through the `PlanFeature` convention, put token
rotation behind a confirmation, removed a silent on-load clipboard copy,
weighted the egress disclaimer, and fixed a `list_spaces` N+1.
### Known, deliberate tradeoffs
- `get_cashflow` / `get_net_worth` / `spending_by_category` reuse the
existing **user-scoped** analytics controllers/services, so they cover
the whole account rather than a single space (documented in the server
instructions). Per-space analytics is a follow-up.
- Space tools scope by `space_id` gated by membership
(`accessibleSpaces`) — the intended shared-tenant model — rather than a
per-row `user_id` filter.
## Not runnable in this environment
Browser QA of the settings page wasn't run here (no local
`node_modules`); that surface relies on CI build/typecheck/lint and
follows existing settings-page conventions.
---
## Updates since opening
- **Behind a feature flag.** New `App\Features\Mcp` (default off) hides
the whole settings screen — the nav item and every `settings/mcp*` route
(404 when off). Pro-plan gating still happens per request. Enable it
with `php artisan feature:enable "App\Features\Mcp" <email|all|25%>`.
- **Renamed** the user-facing page from "MCP access" to **"AI
Connector"** (nav, title, breadcrumb) so non-technical users understand
it. Route names, files and the feature stay internal.
- **Shared `ProBadge`** component (amber), now used on both the AI
Connector and billing pages instead of an inline badge.
- **Softer data-egress notice** (amber shield icon instead of a red
alert) and plainer copy throughout.
- **Accurate connection instructions (important).** Verified against the
official docs: a personal access token works with **Claude Code** today.
**Claude Desktop** and **ChatGPT** custom connectors authenticate over
**OAuth** and do not accept a static token, so they're now marked
**"coming soon"**. OAuth is the real unlock for those clients and is the
recommended follow-up (it also maps to the deferred write-tools work).
Sources: [Claude custom
connectors](https://support.claude.com/en/articles/11175166-get-started-with-custom-connectors-using-remote-mcp),
[ChatGPT developer
mode](https://developers.openai.com/api/docs/guides/developer-mode).
- UI reviewed in a real browser; layout/alignment checked across states
(empty, new-token reveal, token list).
Víctor Falcón