Development
Generate boundary-value test cases from an OpenAPI 3.x document and optionally send them to a real backend to spot contract mismatches
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/api-contract-stress-tester' \
-H 'Content-Type: application/json' \
-d '{"openApiSpec":"openapi: 3.0.0\npaths:\n /users:\n post:\n requestBody:\n required: true\n content:\n application/json:\n schema:\n type: object\n required: [email, role]\n properties:\n email: { type: string, minLength: 5 }\n role: { type: string, enum: [admin, member] }\n age: { type: integer, minimum: 18 }\n responses:\n \"201\": { description: created }\n \"400\": { description: bad request }\n","baseUrl":"https://api.example.com","executeRequests":false,"authorizationHeader":"Bearer <token>","maxCasesPerField":3,"timeoutMs":8000}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/api-contract-stress-tester| Name | Type | Required | Description |
|---|---|---|---|
| openApiSpec | textarea | Yes | — |
| baseUrl | text | No | — |
| executeRequests | checkbox | No | — |
| authorizationHeader | text | No | — |
| maxCasesPerField | number | No | — |
| timeoutMs | number | No | — |
JSON result
{
"key": {...},
"metadata": {
"key": "value"
},
"error": "Error message (optional)",
"message": "Notification message (optional)"
}Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-api-contract-stress-tester": {
"name": "api-contract-stress-tester",
"description": "Generate boundary-value test cases from an OpenAPI 3.x document and optionally send them to a real backend to spot contract mismatches",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=api-contract-stress-tester",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "api-contract-stress-tester",
"arguments": {
"openApiSpec": "openapi: 3.0.0\npaths:\n /users:\n post:\n requestBody:\n required: true\n content:\n application/json:\n schema:\n type: object\n required: [email, role]\n properties:\n email: { type: string, minLength: 5 }\n role: { type: string, enum: [admin, member] }\n age: { type: integer, minimum: 18 }\n responses:\n \"201\": { description: created }\n \"400\": { description: bad request }\n",
"baseUrl": "https://api.example.com",
"executeRequests": false,
"authorizationHeader": "Bearer <token>",
"maxCasesPerField": 3,
"timeoutMs": 8000
}
}
}Questions or issues? Contact [email protected]