Rollup freshness and coverage

GET

/chains/{chain}/status

const url = 'https://api.getchord.xyz/v1/chains/avalanche/status';
const options = {method: 'GET'};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}

curl --request GET \
  --url https://api.getchord.xyz/v1/chains/avalanche/status

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”.

Parameters

Path Parameters

chain

required

string

Allowed values: avalanche base bnb arbitrum ethereum 43114 8453 56 42161 1

The chain, by key or id: avalanche or 43114, base or 8453, bnb or 56, arbitrum or 42161, ethereum or 1 (case-insensitive). Arc, Robinhood Chain and Monad are refused with 400 UNSUPPORTED_CHAIN and a pointer to their own routes.

Responses

200

application/json

object

chain

Registry id.

integer

enabled

The rollup and the tape both run.

boolean

tape

The chain’s trade tape runs.

boolean

public

Served to callers without a key.

boolean

recentAt

Unix time, seconds, UTC.

integer | null

staleSec

Seconds since the last rollup pass.

integer | null

floorHour

Oldest hour the backfill has rolled.

integer | null

genesisHour

The chain’s first indexed hour, when this server knows it; often null.

integer | null

backfillComplete

True once the backfill has reached the first indexed hour.

boolean

retentionCutoffDay

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.

integer | null

ingestFloor

The tape’s ingest floor. BNB Chain runs at $100 today; Avalanche and Base at 0.

object

minTradeUsd

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.

number

history

Floors in force over time, oldest first. Empty when the chain was never floored. Raising a floor does not remove older, smaller rows.

Array<object>

object

usd

Floor in force.

number

fromTs

Unix time, seconds, UTC.

integer

updatedAt

Unix time, milliseconds — when the server built this answer.

integer

Example

{
  "chain": 56,
  "enabled": true,
  "tape": true,
  "public": true,
  "recentAt": 1791020996,
  "staleSec": 460,
  "floorHour": 1790787600,
  "genesisHour": null,
  "backfillComplete": true,
  "retentionCutoffDay": 1790726400,
  "ingestFloor": {
    "minTradeUsd": 100,
    "history": [
      {
        "usd": 100,
        "fromTs": 1790789196
      }
    ]
  },
  "updatedAt": 1791021456137
}

400

UNSUPPORTED_CHAIN (unknown chain, a chain with its own routes, or a chain not served to this caller yet).

application/json

Every non-2xx body.

object

error

required

Stable machine code, e.g. INVALID_PARAMS, NOT_READY, RATE_LIMIT_EXCEEDED.

string

message

For humans.

string

statusCode

HTTP status, when included.

integer

Example

{
  "error": "INVALID_PARAMS",
  "message": "amount must be an integer string in the token's smallest unit"
}

429

Over the per-minute limit (RATE_LIMIT_EXCEEDED). Read X-RateLimit-Reset and back off.

application/json

Every non-2xx body.

object

error

required

Stable machine code, e.g. INVALID_PARAMS, NOT_READY, RATE_LIMIT_EXCEEDED.

string

message

For humans.

string

statusCode

HTTP status, when included.

integer

Example

{
  "error": "INVALID_PARAMS",
  "message": "amount must be an integer string in the token's smallest unit"
}

503

CHAIN_DATA_UNAVAILABLE: the store could not be read. Retry later; do not treat it as an empty answer.

application/json

Every non-2xx body.

object

error

required

Stable machine code, e.g. INVALID_PARAMS, NOT_READY, RATE_LIMIT_EXCEEDED.

string

message

For humans.

string

statusCode

HTTP status, when included.

integer

Example

{
  "error": "INVALID_PARAMS",
  "message": "amount must be an integer string in the token's smallest unit"
}