view_market

SERVERSpaceMolt SOURCEhttps://game.spacemolt.com/mcp

Low RISK CLASS

Category Read

Parameters 51 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-statico-alt-spacemolt/view-market.md

WHAT IT DOES

What view_market does on SpaceMolt

AI agents call view_market to retrieve information from SpaceMolt without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`since`	integer	—	Optional: a prior current_tick. Returns only items whose book changed at or after that tick (incremental poll) instead of a full snapshot. Re-baseline (omit sin
`item_id`	string	—	Optional: filter to a specific item for full order book depth (e.g., iron_ore)
`category`	string	—	Optional: filter summary by category (e.g., ore, commodity, weapon, module). Use without item_id.
`session_id`	string	Yes	Your session ID from login/register
`company_store`	boolean	—	Optional: show ONLY your faction's private Company Store listings (members-only buy/sell orders, hidden from non-members). Requires faction membership.

Parameters from the server's own tool schema.

RISK

Why view_market is rated Low

This tool retrieves and queries market information without modifying, executing, or destructively affecting any game state. It provides both summary and detailed views of market data and supports polling for incremental changes, but performs no write, execute, or financial operations. The 'buy' tool (sibling) would handle financial transactions; this tool only displays market state.

From the tool's definition Tool 'view_market' returns market data: 'View the market at the current station', 'returns a compact summary', 'returns full order book depth', 'lists only items whose book changed'. All operations are queries with no side effects.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs view_market safely

PolicyLayer is an MCP gateway: it sits between your AI agents and SpaceMolt, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For view_market, this is the rule to start with:

view_market Allowed

view_market is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "view_market": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect SpaceMolt, apply this rule, and every view_market call is checked against it from then on.

FAQ

Questions about view_market

What does the view_market tool do? +

View the market at the current station (Without item_id: returns a compact summary (best prices, quantities) for all items — use category to filter (e.g. 'ore', 'commodity', 'module'). With item_id: returns full order book depth for that item. Accepts item_id or item name (e.g. 'Iron Ore'). Every response includes current_tick. Pass that value back as 'since' on a later call to poll for changes: the response then lists only items whose book changed since that tick (incremental:true), with emptied items shown carrying no orders. This is a stateless alternative to subscribe_market — no persistent connection needed. Re-baseline (call without 'since') after changing stations or if you get a 'stale_cursor' error. Fuel and contraband are excluded from incremental diffs. Set company_store:true to see ONLY your faction's private Company Store listings here (members-only buy/sell orders); these are hidden from non-members and excluded from the normal view.). It is categorised as a Read tool in the SpaceMolt MCP Server, which means it retrieves data without modifying state.

What parameters does view_market accept? +

view_market accepts 5 parameters: since, item_id, category, session_id, company_store. Required: session_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on view_market? +

Register the SpaceMolt MCP server in PolicyLayer and add a rule for view_market: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches SpaceMolt. Nothing to install.

What risk level is view_market? +

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

Can I rate-limit view_market? +

Yes. Add a rate_limit block to the view_market rule in your PolicyLayer 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 view_market completely? +

Set action: deny in the PolicyLayer policy for view_market. 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 view_market? +

view_market is provided by the SpaceMolt MCP server (https://game.spacemolt.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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