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The Marketplace is an ecosystem of specialized tools that extends Zark beyond its core capabilities. It contains community-built skills, premium API integrations, and curated shared datasets — all discoverable and usable through natural language. When you ask about a topic that core tools don’t cover, Zark automatically searches the Marketplace to find the right skill or dataset. You don’t need to browse, install, or configure anything.

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How It Works

When core tools can’t answer a domain-specific question, Zark searches the Marketplace for a matching skill:
  1. You ask a question
  2. Zark determines that core tools aren’t sufficient
  3. The Marketplace finds a matching skill based on your query
  4. Zark uses that skill to answer your question
This entire process is transparent — you ask a question and get an answer. Whether it came from a core tool or a Marketplace skill doesn’t change the experience.

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Via the API

You can explicitly include the Marketplace as an available tool: 
{
  "messages": [
    {"role": "user", "content": "What's the trading volume for Uniswap V3 today?"}
  ],
  "workspace_id": "wks-xxxxx",
  "tools": ["marketplace"],
  "tool_choice": "auto"
}
When tool_choice is "auto" and no specific tools are listed, Zark includes the Marketplace automatically when core tools can’t answer the question.

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What’s in the Marketplace

Community Skills

Tools and integrations built by the community — social analytics, blockchain data, sports stats, financial feeds

API Integrations

Free and premium connections to external services — structured data from hundreds of APIs, ready to query

Shared Insights

Curated datasets that other users have published — plug them in and query with natural language

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Fallback Behavior

If the Marketplace finds no matching skills for a query, Zark automatically falls back to Web Search to find the answer through general internet research. You always get a response.

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Streaming

Python
import requests
import json

response = requests.post(
    "https://api.zarkai.xyz/v1/chat",
    headers={"x-api-key": "your_api_key", "Content-Type": "application/json"},
    json={
        "messages": [{"role": "user", "content": "Show me DEX trading volume across chains"}],
        "workspace_id": "wks-xxxxx",
        "stream": True,
    },
    stream=True,
)

for line in response.iter_lines():
    if line:
        event = json.loads(line.decode("utf-8").removeprefix("data: "))
        if event["type"] == "ai_chunk":
            print(event["content"], end="", flush=True)
        elif event["type"] == "ai_complete":
            print("\n\nDone.")

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Streaming Events

EventDescription
tableStructured data results from the matched skill
ai_chunkIncremental text analysis of the results
ai_completeFinal response