fetch

Compatibility alias that resolves fetch IDs like brand:stripe or prompt:best-crm into JSON-text results with human-readable text.

Part of the Parse Gl MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

@parse-gl/mcp Read

// WHEN AI AGENTS USE THIS TOOL

AI agents call fetch to retrieve information from Parse Gl without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

// WHY ENFORCE A POLICY ON FETCH

Even though fetch only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

// RECOMMENDED POLICY

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

gl-parse-mcp.yaml

tools:
  fetch:
    rules:
      - action: allow

See the full Parse Gl policy for all 6 tools.

// DETAILS

Tool Name fetch

Category Read

MCP Server Parse Gl MCP Server

Risk Level Low

// MORE PARSE GL TOOLS

Execute parse_get_brand Execute parse_get_prompt Execute parse_get_stats Execute parse_search Read search

// WHAT CAN GO WRONG

Agents calling read-class tools like fetch have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER READ TOOLS ACROSS MCP SERVERS

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

Firecrawl Web Scraping Server firecrawl_check_crawl_status Firecrawl Web Scraping Server firecrawl_crawl Firecrawl Web Scraping Server firecrawl_deep_research Firecrawl Web Scraping Server firecrawl_extract Firecrawl Web Scraping Server firecrawl_map Firecrawl Web Scraping Server firecrawl_scrape

// RELATED READING

// FAQ

What does the fetch tool do? +

Compatibility alias that resolves fetch IDs like brand:stripe or prompt:best-crm into JSON-text results with human-readable text.. It is categorised as a Read tool in the Parse Gl MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on fetch? +

Add a rule in your Intercept YAML policy under the tools section for fetch. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Parse Gl MCP server.

What risk level is fetch? +

fetch is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit fetch? +

Yes. Add a rate_limit block to the fetch rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block fetch completely? +

Set action: deny in the Intercept policy for fetch. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides fetch? +

fetch is provided by the Parse Gl MCP server (@parse-gl/mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

fetch

Let agents act without letting them run wild.