# getMaxRetransmitSlot

## getMaxRetransmitSlot — Highest slot retransmitted

> Returns the highest slot number for which the validator has retransmitted shreds from its retransmit stage.

```json
{"openapi":"3.0.3","info":{"title":"Solana RPC: getMaxRetransmitSlot","version":"1.0.0"},"tags":[{"name":"Slots","description":"Solana RPC slots method."}],"servers":[{"url":"https://public.rpc.solanavibestation.com","description":"Public endpoint (rate-limited, no auth)"},{"url":"https://lite.rpc.solanavibestation.com","description":"Lite tier"},{"url":"https://basic.rpc.solanavibestation.com","description":"Basic tier"},{"url":"https://ultra.rpc.solanavibestation.com","description":"Ultra tier"},{"url":"https://elite.rpc.solanavibestation.com","description":"Elite tier"},{"url":"https://epic.rpc.solanavibestation.com","description":"Epic tier"},{"url":"https://basic.swqos.solanavibestation.com","description":"Basic tier with Stake-Weighted QoS"},{"url":"https://ultra.swqos.solanavibestation.com","description":"Ultra tier with Stake-Weighted QoS"},{"url":"https://elite.swqos.solanavibestation.com","description":"Elite tier with Stake-Weighted QoS"}],"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":{"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":{"$ref":"#/components/schemas/JsonRpcErrorResponse"}}}}}},"paths":{"/":{"post":{"operationId":"getMaxRetransmitSlot","summary":"getMaxRetransmitSlot — Highest slot retransmitted","tags":["Slots"],"description":"Returns the highest slot number for which the validator has retransmitted shreds from its retransmit stage.","requestBody":{"required":true,"content":{"application/json":{"schema":{"type":"object","required":["jsonrpc","id","method","params"],"properties":{"jsonrpc":{"type":"string","enum":["2.0"],"description":"JSON-RPC protocol version."},"id":{"oneOf":[{"type":"string"},{"type":"integer"}],"description":"Request identifier echoed back in the response."},"method":{"type":"string","enum":["getMaxRetransmitSlot"],"description":"Must be `getMaxRetransmitSlot`."},"params":{"type":"array","description":"No parameters.","maxItems":0}}}}}},"responses":{"200":{"description":"Successful `getMaxRetransmitSlot` response.","content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/JsonRpcEnvelope"},{"type":"object","required":["result"],"properties":{"result":{"type":"integer","format":"int64","description":"Highest slot the retransmit stage has reached."}}}]}}}},"401":{"$ref":"#/components/responses/UnauthorizedError"},"403":{"$ref":"#/components/responses/ForbiddenError"},"429":{"$ref":"#/components/responses/TooManyRequestsError"},"500":{"$ref":"#/components/responses/InternalServerError"}}}}}}
```


---

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