getFirstAvailableBlock

getFirstAvailableBlock — Lowest available block in the ledger

post

/

Returns the slot of the lowest confirmed block that has not been purged from the ledger. This is useful for determining the earliest available block data in the ledger history.

Authorizations

AuthorizationstringOptional

Pass Authorization: <api-key> on each request.

Body

jsonrpcstring · enumRequired

JSON-RPC protocol version.

Example: 2.0Possible values:

idone ofRequired

Request identifier echoed back in the response.

Example: 1

stringOptional

or

integerOptional

methodstring · enumRequired

Must be getFirstAvailableBlock.

Example: getFirstAvailableBlockPossible values:

paramsarrayRequired

No parameters.

Responses

200

Successful getFirstAvailableBlock response.

application/json

Base envelope of every JSON-RPC 2.0 response.

jsonrpcstring · enumRequiredExample: 2.0Possible values:

idone ofRequired

Echoed request id.

Example: 1

stringOptional

or

integerOptional

resultinteger · int64Required

Lowest slot the node has data for in its ledger.

Example: 140000000

401

Authentication required or invalid.

application/json

403

Insufficient permissions for the request.

application/json

429

Rate limit exceeded for this tier.

application/json

500

Unexpected server error.

application/json

post/

curl -X POST https://public.rpc.solanavibestation.com \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getFirstAvailableBlock",
    "params": []
  }'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": 140000000
}