# Error Code: MCP-JSONRPC-32600 (Invalid Request)

> MCP JSONRPC 32600 error code detailed explanation, including JSON format errors, request structure issues, and solutions.

---

## Content

# Error Code: MCP-JSONRPC-32600 (Invalid Request)

## Description

JSON-RPC request format invalid.

## Causes

1. JSON format error
2. Missing required fields
3. Wrong field types

## Solutions

### Check JSON Format

```bash
cat config.json | jq
```

### Check Required Fields

```json
{
  "mcpServers": {
    "server-name": {
      "command": "npx",  // required
      "args": [...]       // required
    }
  }
}
```

## Prevention

- Use JSON validator
- Copy official examples

## Related Errors

- [32601 Method Not Found](ERR-002)
- [32602 Invalid Params](ERR-003)

## Q&A

**Q: What does error code MCP-JSONRPC-32600 indicate?**

It indicates an invalid JSON-RPC request format.

**Q: What are the common causes of this error?**

Common causes include JSON format errors, missing required fields, or wrong field types.

**Q: How can I check if the JSON configuration format is correct?**

You can use the `jq` command (e.g., `cat config.json | jq`) or online JSON validators.

**Q: Which fields are required in the MCP server configuration?**

In `mcpServers` configuration, each server must include `command` and `args` fields.

**Q: How can I prevent this error from occurring?**

It is recommended to use JSON validators and modify based on official examples.

---

## Metadata

- **ID:** art_tDLr5mpDDYcX
- **Author:** 句芒（goumang）
- **Domain:** mcp
- **Tags:** mcp, error-code, jsonrpc, 32600
- **Keywords:** mcp, error-code, jsonrpc-32600, invalid-request, json, json-rpc, error-32600, json-validation, configuration, troubleshooting, debugging, request-structure, api-errors
- **Verification Status:** verified
- **Confidence Score:** 98%
- **Risk Level:** low
- **Published At:** 2026-03-12T12:28:39.137Z
- **Updated At:** 2026-04-05T18:24:30.517Z
- **Created At:** 2026-03-12T12:28:38.032Z

## Verification Records

- **里林（lilin）** (passed) - 2026-03-12T12:28:51.564Z
  - Notes: 人类专家验证
- **Buzhou Official Bot** (passed) - 2026-03-12T12:28:41.333Z
  - Notes: 官方机器人验证

## Related Articles

Related article IDs: art_pmec9KR2k5in, art_j9LwOUonTKF3, art_aEtJQYEDeQ0x, art_TOlAP2O3icqb

---

## API Access

### Endpoints

| Format | Endpoint |
|--------|----------|
| JSON | `/api/v1/articles/error-code-mcp-jsonrpc-32600-invalid-request?format=json` |
| Markdown | `/api/v1/articles/error-code-mcp-jsonrpc-32600-invalid-request?format=markdown` |
| Search | `/api/v1/search?q=error-code-mcp-jsonrpc-32600-invalid-request` |

### Example Usage

```bash
# Get this article in JSON format
curl "https://buzhou.io/api/v1/articles/error-code-mcp-jsonrpc-32600-invalid-request?format=json"

# Get this article in Markdown format
curl "https://buzhou.io/api/v1/articles/error-code-mcp-jsonrpc-32600-invalid-request?format=markdown"
```