> For the complete documentation index, see [llms.txt](https://docs.solanavibestation.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.solanavibestation.com/api-reference/solana-rpc/websocket-methods/programsubscribe.md).

# programSubscribe

## programSubscribe — Subscribe to program-owned account changes

> Subscribe to a program to receive notifications when the lamports or data for an account owned by the given program changes. This method establishes a persistent WebSocket connection that will send real-time notifications whenever accounts owned by the specified program are created, modified, or deleted. You can filter results by data size, account owner, or custom criteria to only receive notifications for accounts that match your requirements.\
> \*\*Parameters\*\*\
> \
> 0\. \`programId\` (required) — Program pubkey, base-58.\
> 1\. \`config\` (optional) — Optional configuration object. Every field is optional; omit the entire object to use defaults.<br>

```json
{"openapi":"3.0.3","info":{"title":"WebSocket RPC: programSubscribe","version":"1.0.0"},"tags":[{"name":"Program Subscriptions","description":"WebSocket RPC program subscriptions method."}],"servers":[{"url":"wss://public.rpc.solanavibestation.com","description":"Public WebSocket endpoint (rate-limited)"},{"url":"wss://lite.rpc.solanavibestation.com","description":"Lite tier WebSocket"},{"url":"wss://basic.rpc.solanavibestation.com","description":"Basic tier WebSocket"},{"url":"wss://ultra.rpc.solanavibestation.com","description":"Ultra tier WebSocket"},{"url":"wss://elite.rpc.solanavibestation.com","description":"Elite tier WebSocket"},{"url":"wss://epic.rpc.solanavibestation.com","description":"Epic tier WebSocket"}],"security":[{},{"AuthHeader":[]},{"URLParameter":[]}],"components":{"securitySchemes":{"AuthHeader":{"type":"apiKey","in":"header","name":"Authorization","description":"Pass `Authorization: <api-key>` on each request."},"URLParameter":{"type":"apiKey","in":"query","name":"api_key","description":"Pass `?api_key=<api-key>` on the URL."}},"schemas":{"Commitment":{"type":"string","enum":["processed","confirmed","finalized"],"default":"finalized","description":"How finalized a block is at query time:\n- `processed`: most recent block, may be skipped\n- `confirmed`: block confirmed by supermajority of cluster\n- `finalized`: block finalized by the cluster (>2/3 stake)"},"Encoding":{"type":"string","enum":["json","jsonParsed","base58","base64","base64+zstd"],"description":"Encoding for transaction or account data."},"JsonRpcEnvelope":{"type":"object","required":["jsonrpc","id"],"description":"Base envelope of every JSON-RPC 2.0 response.","properties":{"jsonrpc":{"type":"string","enum":["2.0"]},"id":{"oneOf":[{"type":"string"},{"type":"integer"}],"description":"Echoed request id."}}},"JsonRpcErrorResponse":{"type":"object","required":["jsonrpc","id","error"],"description":"JSON-RPC 2.0 error response.","properties":{"jsonrpc":{"type":"string","enum":["2.0"]},"id":{"oneOf":[{"type":"string"},{"type":"integer"}]},"error":{"$ref":"#/components/schemas/JsonRpcError"}}},"JsonRpcError":{"type":"object","required":["code","message"],"description":"Structured JSON-RPC error.","properties":{"code":{"type":"integer","description":"Numeric error code per JSON-RPC 2.0 spec. Common values:\n- `-32700` Parse error\n- `-32600` Invalid Request\n- `-32601` Method not found\n- `-32602` Invalid params\n- `-32603` Internal error\n- `-32003` Unauthorized\n- `-32005` Too Many Requests\n- `-32015` Transaction version not supported\n"},"message":{"type":"string"},"data":{"type":"object","additionalProperties":true}}}},"responses":{"UnauthorizedError":{"description":"Authentication required or invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/JsonRpcErrorResponse"}}}},"ForbiddenError":{"description":"Insufficient permissions for the request.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/JsonRpcErrorResponse"}}}},"TooManyRequestsError":{"description":"Rate limit exceeded for this tier.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/JsonRpcErrorResponse"}}}},"InternalServerError":{"description":"Unexpected server error.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/JsonRpcErrorResponse"}}}}}},"paths":{"/":{"post":{"operationId":"programSubscribe","summary":"programSubscribe — Subscribe to program-owned account changes","tags":["Program Subscriptions"],"description":"Subscribe to a program to receive notifications when the lamports or data for an account owned by the given program changes. This method establishes a persistent WebSocket connection that will send real-time notifications whenever accounts owned by the specified program are created, modified, or deleted. You can filter results by data size, account owner, or custom criteria to only receive notifications for accounts that match your requirements.\n**Parameters**\n\n0. `programId` (required) — Program pubkey, base-58.\n1. `config` (optional) — Optional configuration object. Every field is optional; omit the entire object to use defaults.\n","requestBody":{"required":true,"content":{"application/json":{"schema":{"type":"object","required":["jsonrpc","id","method","params"],"properties":{"jsonrpc":{"type":"string","enum":["2.0"],"description":"JSON-RPC protocol version."},"id":{"oneOf":[{"type":"string"},{"type":"integer"}],"description":"Request identifier echoed back in the response."},"method":{"type":"string","enum":["programSubscribe"],"description":"Must be `programSubscribe`."},"params":{"type":"array","description":"Positional parameters. Each item below corresponds to one position in the array, in order.","minItems":1,"maxItems":2,"items":{"anyOf":[{"title":"programId","type":"string","description":"Program pubkey, base-58."},{"title":"config (optional)","type":"object","description":"Optional configuration object. Every field is optional; omit the entire object to use defaults.","properties":{"commitment":{"$ref":"#/components/schemas/Commitment"},"minContextSlot":{"type":"integer","format":"int64","description":"Minimum slot at which the request can be evaluated. The RPC node will reject the request with a `MinContextSlotNotReached` error if its current root is below this value. Use this for read-after-write consistency in multi-step workflows."},"encoding":{"$ref":"#/components/schemas/Encoding"},"filters":{"type":"array","items":{"type":"object","description":"A filter that matches accounts whose data length equals `dataSize`, or whose data at `memcmp.offset` equals `memcmp.bytes`. Provide one of the two keys per filter.","properties":{"dataSize":{"type":"integer","format":"int64","description":"Exact account data size, in bytes. Match accounts whose data is exactly this many bytes long."},"memcmp":{"type":"object","description":"Match accounts whose data at `offset` equals `bytes` (encoded per `encoding`).","properties":{"offset":{"type":"integer","format":"int64","description":"Byte offset into the account data."},"bytes":{"type":"string","description":"Bytes to match against, base-58 or base-64."},"encoding":{"type":"string","description":"Encoding for the `bytes` field.","enum":["base58","base64"]}}}}},"description":"Optional filters that narrow the account set."}}}]}}}}}}},"responses":{"200":{"description":"Successful `programSubscribe` response.","content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/JsonRpcEnvelope"},{"type":"object","required":["result"],"properties":{"result":{"type":"integer","format":"int64","description":"Subscription id. Save this value to call the matching unsubscribe method later."}}}]}}}},"401":{"$ref":"#/components/responses/UnauthorizedError"},"403":{"$ref":"#/components/responses/ForbiddenError"},"429":{"$ref":"#/components/responses/TooManyRequestsError"},"500":{"$ref":"#/components/responses/InternalServerError"}}}}}}
```