Earnings Watch

Verified issuer earnings calendars and results documents through a CLI, Python API and MCP server. Models propose dates; deterministic checks require quoted evidence and consistent issuer, period and timing. A call time never silently becomes a publication time.

Calendar updates are optional. Earnings Watch produces an operation plan; your MCP client uses its external Outlook app to apply it and acknowledges confirmed writes. No Microsoft credentials or calendar SDK are required by this package.

Maintained source and contributions: benjamin-di/earnings-watch. See Source and releases.

Requires Python 3.12+. Install the published package with uv tool install earnings-watch, or develop from a source checkout:

make bootstrap
uv run earnings-watch init
uv run earnings-watch doctor
uv run earnings-watch sources import examples/sources.yaml
uv run earnings-watch watch EXAMPLE
uv run earnings-watch upcoming --format json

The example uses reserved domains and fictional data; replace its source URLs and issuer metadata before fetching. There is no bundled issuer universe or market-data subscription.

Maintenance and models

Serving reads SQLite and updates personal follows/ledgers; it never fetches issuer pages or calls a model. Run maintenance separately:

uv run earnings-watch sweep --dry-run
uv run earnings-watch sweep
uv run earnings-watch sweep --docs-only
uv run earnings-watch worker

The default backend is none: it preserves existing dates and still polls official release providers. To extract new dates, install and sign into your own Claude Code or Codex CLI, then configure it in earnings-watch.toml:

[llm]
backends = ["claude-code", "codex", "none"]
max_calls_per_run = 20

Supported minimum versions are Claude Code 2.1.312 and Codex 0.164.0. Run earnings-watch doctor --live to check capabilities and an optional model canary. The package has no login flow. Model usage follows your CLI account's limits and terms. Only an explicit sign-in or account-limit refusal, or a configured Codex endpoint that is unreachable or failing before any output, tries the next backend; a timed-out run is not repeated in the same tick.

Codex runs with --ignore-user-config. To send it through an OpenAI Responses-compatible endpoint, set both codex_base_url and codex_key_env (the name of the environment variable holding its key) under [llm]; the key itself never goes in the file. Use https:// for any endpoint that is not on the local host. Claude Code receives ANTHROPIC_BASE_URL and CLAUDE_CODE_MAX_RETRIES from the environment, so a bounded retry count lets an unavailable endpoint fail before the task timeout.

MCP

A local client configuration, after initialization:

{"mcpServers":{"earnings":{"command":"earnings-watch","args":["serve","--stdio"]}}}

Prompts: earnings_briefing, results_brief, sync_to_my_outlook. Resource: earnings://upcoming.ics. Exact times require verified clock and timezone evidence; otherwise calendar entries are all-day. Outlook operations never include attendees.

HTTP standalone mode uses a separate bearer token per person at /users/<id>/mcp. Gateway mode accepts a configured backend bearer and an immutable subject header from the admission gateway at /mcp. These modes are separate trust boundaries; see permissions.

Connections page and notifications

The optional Connections page provides Upcoming, Your companies, Notifications and Calendar in one place. Sign in, add companies or preview a holdings import, then subscribe to your private calendar feed. Facts are shared; holdings, watchlists, mutes, preferences and receipts are personal.

Results-out notifications are enabled for new people. Daily briefs and urgent changes are optional. Mail submission requires a separately configured transport; the server and acquisition worker never send messages themselves.

Docker Compose

cp earnings-watch.example.toml earnings-watch.toml
docker compose build
docker compose run --rm server init
docker compose run --rm server users add example
docker compose up -d

Save the returned token privately and use it only on that person's HTTP path. The server binds to loopback by default. Both images run as uid 1000; Compose drops capabilities, prevents privilege escalation and mounts the root filesystem read-only. The worker image includes pinned model CLIs; their auth volume is optional with backends=["none"]. Configure CLI sign-in outside the read-only worker before enabling model maintenance. Protect auth files and the data volume from other users.

Use --config PATH, --person ID, and --json with the CLI. Settings come from TOML and EARNINGS_WATCH_* environment variables. See operations, architecture, providers and design decisions.

Development

make check verifies lock drift, lint, formatting, types, dependency boundaries, offline tests and wheel/source builds. Tests use synthetic issuers and fake network/model/account boundaries. Real-model and real-page checks are separate operator gates. Read CONTRIBUTING.md and SECURITY.md.

See implementation status for completed capabilities, release gates and the production adapter work still required before cutover.