---
title: "Rollup freshness and coverage"
method: GET
path: "/chains/{chain}/status"
tags: ["Avalanche, Base, BNB Chain"]
---

# Rollup freshness and coverage

`GET /chains/{chain}/status`

## Request

- Base URL: `https://api.getchord.xyz/v1`
- URL: `https://api.getchord.xyz/v1/chains/{chain}/status`
- Auth: none declared

Is the chain's rollup fresh, how far back it reaches, whether the tape and the public flag are on, where the raw tape is cut, and the ingest floor. Answers 200 even before the first rollup pass (`recentAt` is then null). Check it before trusting a quiet number.

Chain-keyed data for Avalanche C-Chain, Base and BNB Chain, served from Chord's rollup tables for the chain (every swap summed by hour, token and venue). Only the trade tape, the prints ticker and the wallet read raw rows, scoped to one token or one wallet and bounded.

- **Access.** No key needed while the chain is public (all three are today). A chain whose tape is off, or that is not public yet, answers `400 UNSUPPORTED_CHAIN` ("chain N is not served yet") unless the request carries an `X-API-Key`; those answers are sent `Cache-Control: private`.
- **Ingest floor.** Every count, volume and print covers trades at or above the chain's floor, returned as `ingestFloor`. BNB Chain runs at $100 today; Avalanche and Base at 0.
- **Readiness.** `503 NOT_READY` until the chain's rollup has run on this deployment; `503 CHAIN_DATA_UNAVAILABLE` when the store cannot be read. Never treat either as "no trades".

## Path parameters

- `chain` 'avalanche' | 'base' | 'bnb' | 'arbitrum' | 'ethereum' | '43114' | '8453' | '56' | '42161' | '1', required

## Response `200`

- object
  - `chain` integer: Registry id.
  - `enabled` boolean: The rollup and the tape both run.
  - `tape` boolean: The chain's trade tape runs.
  - `public` boolean: Served to callers without a key.
  - `recentAt` integer, nullable: Unix time, seconds, UTC.
  - `staleSec` integer, nullable: Seconds since the last rollup pass.
  - `floorHour` integer, nullable: Oldest hour the backfill has rolled.
  - `genesisHour` integer, nullable: The chain's first indexed hour, when this server knows it; often null.
  - `backfillComplete` boolean: True once the backfill has reached the first indexed hour.
  - `retentionCutoffDay` integer, nullable: UTC day start. Raw trades before it are retired from the database (about 3 days on BNB Chain and Base, 7 on Avalanche today); the hourly and daily rollups keep their history.
  - `ingestFloor` IngestFloor: The tape's ingest floor. BNB Chain runs at $100 today; Avalanche and Base at 0.
    - `minTradeUsd` number: Trades under this USD value (at index time) are not in the index, so every count, volume and candle covers trades at or above it. 0 = every priced trade.
    - `history` object[]: Floors in force over time, oldest first. Empty when the chain was never floored. Raising a floor does not remove older, smaller rows.
      - `usd` number: Floor in force.
      - `fromTs` integer: Unix time, seconds, UTC.
  - `updatedAt` integer: Unix time, milliseconds — when the server built this answer.

## Other responses

- `400`: `UNSUPPORTED_CHAIN` (unknown chain, a chain with its own routes, or a chain not served to this caller yet).
- `429`: Over the per-minute limit (`RATE_LIMIT_EXCEEDED`). Read `X-RateLimit-Reset` and back off.
- `503`: `CHAIN_DATA_UNAVAILABLE`: the store could not be read. Retry later; do not treat it as an empty answer.

---

[API](https://skmtc.dev/getchord/apis/chord-api.md) · [All operations](https://skmtc.dev/getchord/apis/chord-api/llms.txt) · [OpenAPI document](https://skmtc.dev/getchord/apis/chord-api/revisions/d3bc4640fea0?raw)