getHealth
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`getHealth` returns the current health of the node serving your request. It is the cheapest liveness probe on the Solana surface: no parameters, and the result is a single short string. Use it for load-balancer health checks, readiness gates before sending traffic, or to decide whether to fall back to a stricter commitment.
The result is one of three values:
- **`ok`** — the node is within the cluster's accepted slot distance of the highest known slot and is safe to read from. - **`behind`** — the node is lagging: it is *not* within `HEALTH_CHECK_SLOT_DISTANCE` slots of the highest known slot. Reads may return stale data; prefer a `finalized` commitment or retry against a healthy node. - **`unknown`** — the node cannot currently determine its own health (for example, it has not yet established its position relative to the cluster).
A `behind` or `unknown` result is still delivered as a normal JSON-RPC `result` (HTTP 200), not an error — inspect the string value rather than relying on the status code.
Parameters
This method takes no parameters.
Returns
| Field | Type |
|---|---|
| result | string |
Examples
curl https://<your-endpoint>/ \
-X POST -H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"getHealth","params":[]}'const res = await fetch("https://<your-endpoint>/", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"id": 1,
"method": "getHealth",
"params": [],
"jsonrpc": "2.0"
}),
});
const data = await res.json();import requests
resp = requests.post("https://<your-endpoint>/", json={"id":1,"method":"getHealth","params":[],"jsonrpc":"2.0"})
print(resp.json()){
"id": 1,
"result": "ok",
"jsonrpc": "2.0"
}Usage
- Transport: HTTP (JSON-RPC).
- Networks: mainnet, devnet, testnet.
- Credit cost: 1 per call.
FAQ
- What does getHealth do?
- Reports whether the serving node is caught up with the cluster.
- How many credits does getHealth cost?
- getHealth costs 1 credit(s) per call on Triport by default.
- Is getHealth available over WebSocket?
- getHealth is an HTTP JSON-RPC method.