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TronSave MCP Server

by io.tronsave.mcp
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Get Minimum Unit Price

tronsave_get_min_price
Read-onlyIdempotent

Quote the minimum unit price for a buy. Returns { minPrice } (SUN per resource unit) from GraphQL market.estimateMinPrice for the given resourceType, buyAmount, and durationSec. Optional address scopes context when the API supports it. No login required; an optional session forwards auth like tronsave_list_order_books. Read-only and idempotent. FRESHNESS: live market data — minPrice can change roughly every 3 seconds; re-fetch right before placing an order and do not reuse a stale value. Pair with tronsave_estimate_buy_resource for full buy quotes and tronsave_list_order_books for depth buckets.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
addressNoOptional TRON base58 address (`TronAddress`). When omitted, the server uses anonymous/global market context.
buyAmountNoResource amount to price (same units as order book / delegate amounts for that resource type). Default 100000 for ENERGY and 1000 for BANDWIDTH
durationSecNoDelegation window in seconds; must match the duration you plan to use on a real order for comparable quotes. Default 15 minutes
resourceTypeNoMarket leg: `ENERGY` or `BANDWIDTH`. Default ENERGYENERGY

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
minPriceYesEstimated minimum unit price in SUN for the given `resourceType`, `buyAmount`, and `durationSec`; align with `tronsave_estimate_buy_resource` and order `unitPrice` conventions (same as GraphQL `market.estimateMinPrice`).

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added

TDQS

A4.9/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly, openWorld, and idempotent hints. Description adds valuable context: no login needed, optional session forwarding, and the fact that minPrice changes every 3 seconds. No contradictions.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, front-loaded with the core purpose, no redundant words. Every sentence adds value.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With output schema described, all 4 parameters documented, and annotations present, the description covers behavior, freshness, authentication, and integration points with sibling tools. Complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so baseline is 3. Description adds context about optional address scoping and default values, and clarifies that durationSec must match real order duration. Adds value beyond schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states it quotes the minimum unit price for a buy, with a specific verb and resource. It distinguishes from siblings by naming tronsave_estimate_buy_resource and tronsave_list_order_books.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides explicit guidance: use before placing an order, warns against reusing stale values (freshness note), and mentions pairing with other tools for full quotes. Also states no login required.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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