---
title: "List Metrics"
method: GET
path: "/v0/metrics"
tags: ["Metrics"]
---

# List Metrics

`GET /v0/metrics`

## Query parameters

- `event_types` MetricEventType[] — List of metric event types to filter by.
- `start_timestamp` string, date-time, required — Start timestamp for the metrics query range.
- `end_timestamp` string, date-time, required — End timestamp for the metrics query range.

## Response `200`

- ListMetricsResponse
  - `message` MessageMetrics
    - `sent` MetricTimestamp[], nullable — Timestamps when messages were sent.
    - `delivered` MetricTimestamp[], nullable — Timestamps when messages were delivered.
    - `bounced` MetricTimestamp[], nullable — Timestamps when messages bounced.
    - `delayed` MetricTimestamp[], nullable — Timestamps when messages were delayed.
    - `rejected` MetricTimestamp[], nullable — Timestamps when messages were rejected.
    - `complained` MetricTimestamp[], nullable — Timestamps when messages received complaints.
    - `received` MetricTimestamp[], nullable — Timestamps when messages were received.

## Other responses

- `404`

## Changes

- **2026-03-28** `8a5b5e92ae2d` — 2 breaking, 5 warning, 4 info
  - added the new required `query` request parameter `end_timestamp`
  - added the new required `query` request parameter `start_timestamp`
  - deleted the `query` request parameter `descending`
  - deleted the `query` request parameter `end`
  - …7 more
- **2026-03-08** `aad781212acd` — 3 warning, 8 info
  - deleted the `query` request parameter `end_timestamp`
  - deleted the `query` request parameter `start_timestamp`
  - removed the optional property `message` from the response with the `200` status
  - api operation id `metrics_list` removed and replaced with `metrics_query`
  - …7 more

[Change history](https://skmtc.dev/agentmail-to/apis/api/changes/v0/metrics/get.md)

---

[API](https://skmtc.dev/agentmail-to/apis/api.md) · [All operations](https://skmtc.dev/agentmail-to/apis/api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/agentmail-to/api/revisions/8a5b5e92ae2d/schema)