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get_brc20_balances

Retrieve BRC-20 token balances for a Bitcoin address, returning available, transferrable, and overall amounts for each token with pagination support.

Instructions

Get BRC-20 token balances for a Bitcoin address. Returns available, transferrable, and overall balance for each token.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoResults per page
offsetNoPagination offset
addressYesBitcoin address

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.2.0

TDQS

B3.4/5.0
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It usefully discloses the return shape (available, transferrable, overall balance), but says nothing about rate limits, pagination behavior, or auth requirements, so behavioral coverage is only partial.

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 tight sentences with zero waste; the core action is front-loaded and the return detail follows immediately. Every clause earns its place.

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

Completeness4/5

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

With no output schema, the description helpfully enumerates the returned balance fields and names the input resource, which is enough for a simple read tool. Minor gaps remain around pagination behavior implied by limit/offset.

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

Parameters3/5

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

Schema coverage is 100%, so address, limit, and offset are documented in the schema itself. The description adds no parameter syntax or format detail beyond what the schema provides, so the baseline of 3 applies.

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

Purpose4/5

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

States a specific verb and resource ('Get BRC-20 token balances for a Bitcoin address'), which is clearly distinct from the rune/inscription siblings. It doesn't explicitly contrast with get_rune_balances or get_brc20_activity, but the resource naming makes the scope unambiguous.

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

Usage Guidelines2/5

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

No when-to-use guidance, prerequisites, or alternatives are given. It doesn't say when to prefer this over get_rune_balances or get_brc20_holders, leaving the agent to infer selection entirely.

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