---
title: "GET /api/v1/chain-events"
method: GET
path: "/api/v1/chain-events"
tags: ["chain", "analytics"]
---

# GET /api/v1/chain-events

`GET /api/v1/chain-events`

## Request

- Base URL: `https://api.metagraph.sh`
- URL: `https://api.metagraph.sh/api/v1/chain-events`
- Auth: none required

Fetch the recent all-events feed (newest first) from the chain_events lakehouse table — every raw pallet.method event, distinct from the curated account-attributed stream. ?pallet / ?method narrow by event id (1-64 ASCII identifier chars); ?block (+ optional ?extrinsic) scopes to one block or extrinsic; ?cursor is the lossless block_number.event_index keyset cursor and ?before is the legacy block_number-only cursor; ?limit caps the page (<=200, default 50). Pass ?format=csv to download the page as CSV. Each page reads one bounded block window below its ceiling, so a short page still carries a continuation rather than ending the feed. Served live, no static file.

## Query parameters

- `pallet` string
- `method` string
- `block` integer
- `extrinsic` integer
- `cursor` string: Opaque block_number.event_index cursor returned as next_cursor; both parts are non-negative safe integers.
- `before` integer
- `limit` integer
- `format` 'json' | 'csv'

## Response `200`

Canonical artifact wrapped in the Metagraphed API envelope, or route rows as text/csv when CSV is requested.

- object
  - `data` object, required: Paginated all-events feed from the chain_events lakehouse table. Mirrors GET /api/v1/chain-events (and MCP list_chain_events). Distinct from Subscription.chainEvents.
    - `count` integer, required
    - `events` object[], required
      - `args` union
        - object
        - unknown[]
          - unknown
      - `block_number` integer, nullable, required
      - `event_index` integer, nullable, required
      - `extrinsic_index` integer, nullable
      - `method` string, nullable, required
      - `observed_at` integer: An epoch-millisecond instant. Published as Float in GraphQL: the value exceeds the 32-bit range of GraphQL's Int.
      - `pallet` string, nullable, required
      - `phase` string, nullable
      - `summary` string, nullable
    - `next_before` integer, nullable
    - `next_cursor` string, nullable
  - `meta` ResponseMeta, required
    - `artifact_path` string
    - `cache` 'short' | 'standard' | 'static'
    - `catalog_paging` object
      - `reason` 'catalog_changed' | 'catalog_budget_exceeded' | 'catalog_unavailable', required
    - `contract_version` string, required
    - `generated_at` string, nullable: Deterministic build content marker (epoch by default); not a wall clock. Use published_at for human-facing freshness.
    - `observed_through` string, date-time, nullable: How far the tier that answered this request has observed at all. A payload reporting no activity at or before this time is a measured absence; one whose subject is newer is outside coverage, not empty. Null when the horizon is unreadable.
    - `pagination` PaginationMeta
      - `collection` string, required
      - `cursor` integer, required
      - `limit` integer, required
      - `next_cursor` integer, nullable, required
      - `order` 'asc' | 'desc'
      - `returned` integer, required
      - `snapshot` string: Present only for page_snapshot paging. Echo as page_snapshot on subsequent pages; a changed collection or query requires a restart.
      - `sort` string, nullable
      - `total` integer, required
    - `published_at` string, date-time, nullable: Real publish time from the KV latest pointer, distinct from generated_at. Null before the first publish or when the control KV is unbound.
    - `source` string
    - `stale_contract` object: Present ONLY when the served artifact was built under an older contract than the live one (serve-time drift, #1001) — the body may predate a schema change. Mirrored on the x-metagraph-stale-contract response header for monitoring.
      - `built_under` string, required: Contract version the served artifact was built under.
      - `live` string, required: Current (live) contract version the Worker is running.
  - `ok` true, required
  - `schema_version` 1, required

## Other responses

- `304`: ETag matched and the cached response is still valid.
- `400`: Query parameters were malformed or unsupported.
- `402`: A payment was presented and could not be verified or settled. The response carries a fresh x402 quote in the `accepts` array and the PAYMENT-REQUIRED header. A request with NO payment is never answered with 402 -- it is served on the anonymous tier.
- `404`: Artifact or API route was not found.
- `405`: HTTP method is not supported.
- `500`: Unexpected backend error.

---

[API](https://skmtc.dev/metagraph/apis/metagraphed-api.md) · [All operations](https://skmtc.dev/metagraph/apis/metagraphed-api/llms.txt) · [OpenAPI document](https://skmtc.dev/metagraph/apis/metagraphed-api/revisions/e29036024bb1?raw)