Development
Turn an OpenAPI 3.x or Swagger 2.0 spec (JSON/YAML) into an importable Postman Collection v2.1.0 with folders, variables, auth and example responses.
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/openapi-to-postman-collection' \
-H 'Content-Type: application/json' \
-d '{"openapiSpec":"{\n \"openapi\": \"3.0.3\",\n \"info\": {\n \"title\": \"Petstore Lite API\",\n \"version\": \"1.0.0\",\n \"description\": \"A small sample pet store API.\"\n },\n \"servers\": [\n {\n \"url\": \"https://api.example.com/v1\"\n }\n ],\n \"paths\": {\n \"/pets\": {\n \"get\": {\n \"summary\": \"List pets\",\n \"operationId\": \"listPets\",\n \"parameters\": [\n {\n \"name\": \"limit\",\n \"in\": \"query\",\n \"description\": \"How many items to return\",\n \"schema\": {\n \"type\": \"integer\",\n \"minimum\": 1,\n \"maximum\": 100\n }\n }\n ],\n \"responses\": {\n \"200\": {\n \"description\": \"A list of pets\",\n \"content\": {\n \"application/json\": {\n \"schema\": {\n \"type\": \"object\",\n \"properties\": {\n \"id\": {\n \"type\": \"integer\"\n },\n \"name\": {\n \"type\": \"string\"\n }\n }\n }\n }\n }\n }\n }\n },\n \"post\": {\n \"summary\": \"Create a pet\",\n \"requestBody\": {\n \"content\": {\n \"application/json\": {\n \"schema\": {\n \"$ref\": \"#/components/schemas/Pet\"\n }\n }\n }\n },\n \"responses\": {\n \"201\": {\n \"description\": \"Created\"\n }\n }\n }\n },\n \"/pets/{petId}\": {\n \"get\": {\n \"summary\": \"Get one pet\",\n \"parameters\": [\n {\n \"name\": \"petId\",\n \"in\": \"path\",\n \"required\": true,\n \"description\": \"The pet id\",\n \"schema\": {\n \"type\": \"string\"\n }\n }\n ],\n \"responses\": {\n \"200\": {\n \"description\": \"A single pet\",\n \"content\": {\n \"application/json\": {\n \"schema\": {\n \"$ref\": \"#/components/schemas/Pet\"\n }\n }\n }\n }\n }\n }\n }\n },\n \"components\": {\n \"schemas\": {\n \"Pet\": {\n \"type\": \"object\",\n \"properties\": {\n \"id\": {\n \"type\": \"integer\"\n },\n \"name\": {\n \"type\": \"string\"\n },\n \"tag\": {\n \"type\": \"string\"\n }\n }\n }\n }\n }\n}","folderStrategy":"paths","includeExamples":true,"includeAuth":true}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/openapi-to-postman-collection| Name | Type | Required | Description |
|---|---|---|---|
| openapiSpec | textarea | Yes | — |
| folderStrategy | select | No | — |
| includeExamples | checkbox | No | — |
| includeAuth | checkbox | No | — |
File result
{
"filePath": "/public/processing/randomid.ext",
"fileName": "output.ext",
"contentType": "application/octet-stream",
"size": 1024,
"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-openapi-to-postman-collection": {
"name": "openapi-to-postman-collection",
"description": "Turn an OpenAPI 3.x or Swagger 2.0 spec (JSON/YAML) into an importable Postman Collection v2.1.0 with folders, variables, auth and example responses.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=openapi-to-postman-collection",
"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": "openapi-to-postman-collection",
"arguments": {
"openapiSpec": "{\n \"openapi\": \"3.0.3\",\n \"info\": {\n \"title\": \"Petstore Lite API\",\n \"version\": \"1.0.0\",\n \"description\": \"A small sample pet store API.\"\n },\n \"servers\": [\n {\n \"url\": \"https://api.example.com/v1\"\n }\n ],\n \"paths\": {\n \"/pets\": {\n \"get\": {\n \"summary\": \"List pets\",\n \"operationId\": \"listPets\",\n \"parameters\": [\n {\n \"name\": \"limit\",\n \"in\": \"query\",\n \"description\": \"How many items to return\",\n \"schema\": {\n \"type\": \"integer\",\n \"minimum\": 1,\n \"maximum\": 100\n }\n }\n ],\n \"responses\": {\n \"200\": {\n \"description\": \"A list of pets\",\n \"content\": {\n \"application/json\": {\n \"schema\": {\n \"type\": \"object\",\n \"properties\": {\n \"id\": {\n \"type\": \"integer\"\n },\n \"name\": {\n \"type\": \"string\"\n }\n }\n }\n }\n }\n }\n }\n },\n \"post\": {\n \"summary\": \"Create a pet\",\n \"requestBody\": {\n \"content\": {\n \"application/json\": {\n \"schema\": {\n \"$ref\": \"#/components/schemas/Pet\"\n }\n }\n }\n },\n \"responses\": {\n \"201\": {\n \"description\": \"Created\"\n }\n }\n }\n },\n \"/pets/{petId}\": {\n \"get\": {\n \"summary\": \"Get one pet\",\n \"parameters\": [\n {\n \"name\": \"petId\",\n \"in\": \"path\",\n \"required\": true,\n \"description\": \"The pet id\",\n \"schema\": {\n \"type\": \"string\"\n }\n }\n ],\n \"responses\": {\n \"200\": {\n \"description\": \"A single pet\",\n \"content\": {\n \"application/json\": {\n \"schema\": {\n \"$ref\": \"#/components/schemas/Pet\"\n }\n }\n }\n }\n }\n }\n }\n },\n \"components\": {\n \"schemas\": {\n \"Pet\": {\n \"type\": \"object\",\n \"properties\": {\n \"id\": {\n \"type\": \"integer\"\n },\n \"name\": {\n \"type\": \"string\"\n },\n \"tag\": {\n \"type\": \"string\"\n }\n }\n }\n }\n }\n}",
"folderStrategy": "paths",
"includeExamples": true,
"includeAuth": true
}
}
}Questions or issues? Contact [email protected]