Tester MCP Client
This Actor is paid per event
Tester MCP Client
This Actor is paid per event
A model context protocol (MCP) client that connects to any MCP server using Server-Sent Events (SSE) and displays the conversation in a chat-like UI. It is a standalone Actor server designed for testing MCP servers over SSE.
Jiří SpilkaActor Metrics
24 monthly users
4.8 / 5 (4)
6 bookmarks
33% runs succeeded
Created in Jan 2025
Modified 3 days ago
You can access the Tester MCP Client programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in Integrations settings in Apify Console.
1# Start Server-Sent Events (SSE) session and keep it running
2curl "https://actors-mcp-server.apify.actor/sse?token=<YOUR_API_TOKEN>&actors=jiri.spilka/tester-mcp-client"
3
4# Session id example output:
5# event: endpoint
6# data: /message?sessionId=9d820491-38d4-4c7d-bb6a-3b7dc542f1faUsing Tester MCP Client via Model Context Protocol (MCP) server
MCP server lets you use Tester MCP Client within your AI workflows. Send API requests to trigger actions and receive real-time results. Take the received sessionId and use it to communicate with the MCP server. The message starts the Tester MCP Client Actor with the provided input.
1curl -X POST "https://actors-mcp-server.apify.actor/message?token=<YOUR_API_TOKEN>&session_id=<SESSION_ID>" -H "Content-Type: application/json" -d '{
2 "jsonrpc": "2.0",
3 "id": 1,
4 "method": "tools/call",
5 "params": {
6 "arguments": {
7 "mcpSseUrl": "https://actors-mcp-server.apify.actor/sse?enableActorAutoLoading=true",
8 "systemPrompt": "You are a helpful Apify assistant with to tools called Actors.\\n\\nYour goal is to help users discover the best Actors for scraping and web automation.\\nYou have access to a list of tools that can help you to discover Actors, find details and include them among tools for later execution.\\n\\nChoose the appropriate Actor based on the conversation context. If no Actor is needed, reply directly.\\n\\nPrefer Actors with more users, stars, and runs\\nWhen you need to use an Actor, explain how it used and with which parameters.\\nNever call an Actor unless it is required by user!\\nAfter receiving a Actors'\'' response:\\n1. Transform the raw data into a natural, conversational response\\n2. Keep responses concise but informative\\n3. Focus on the most relevant information\\n4. Use appropriate context from the user'\''s question\\n5. Avoid simply repeating the raw data\\nAlways use Actor not actor. Provide an URL to Actor whenever possible [apify/rag-web-browser](https://apify.com/apify/rag-web-browser).\\nREMEMBER Always limit number of results returned from Actors.\\nThere is always parameter such as maxResults=1, maxPage=1, maxCrawledPlacesPerSearch=1, keep it to minimal value. \\nOtherwise Actor execution takes long and result is huge!Always inform user that calling Actor might take some time.\\n",
9 "modelMaxOutputTokens": 2048,
10 "maxNumberOfToolCallsPerQuery": 5,
11 "toolCallTimeoutSec": 300
12},
13 "name": "jiri.spilka/tester-mcp-client"
14 }
15}'The response should be: Accepted. You should received response via SSE (JSON) as:
1event: message
2data: {
3 "result": {
4 "content": [
5 {
6 "type": "text",
7 "text": "ACTOR_RESPONSE"
8 }
9 ]
10 }
11}Configure local MCP Server via standard input/output for Tester MCP Client
You can connect to the MCP Server using clients like ClaudeDesktop and LibreChat or build your own. The server can run both locally and remotely, giving you full flexibility. Set up the server in the client configuration as follows:
1{
2 "mcpServers": {
3 "actors-mcp-server": {
4 "command": "npx",
5 "args": [
6 "-y",
7 "@apify/actors-mcp-server",
8 "--actors",
9 "jiri.spilka/tester-mcp-client"
10 ],
11 "env": {
12 "APIFY_TOKEN": "<YOUR_API_TOKEN>"
13 }
14 }
15 }
16}You can further access the MCP client through the Tester MCP Client, a chat user interface to interact with the server.
To get started, check out the documentation and example clients. If you are interested in learning more about our MCP server, check out our blog post.
