SAP MCP Server

Sns Reverse Lookup

sns_reverseLookup

Reverse-lookup all .sol domains owned by a wallet. SAP MCP context: Protocol sns; operation class read. Use to find the SNS domain associated with a wallet. For SAP profile checks, pair this with sap_sns_resolve_wallet or sap_sns_check_ownership.

SAP MCP execution guidance: Intent: SAP MCP tool workflow. Pricing: paid builder; estimate first, then pay/build and finalize unsigned transactions locally when returned. Routing: paid hosted call; call sap_estimate_tool_cost first, then use sap_payments_call_paid_tool if the runtime cannot handle x402 natively. Signer boundary: hosted reads/builders never receive keypair bytes; value-moving results must be finalized locally when signing is required.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`wallet`	Yes	Wallet address to reverse-lookup

Output Schema

TableJSON Schema

Name	Required	Description	Default
`content`	Yes	MCP content blocks returned to the caller.
`isError`	No	True when the tool result represents an application-level error.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedJul 24, 2026

addedInput schema / description

Added value: +"Sns Reverse Lookup input schema. Intent: SAP MCP tool workflow. Pricing: paid builder; estimate first, then pay/build and finalize unsigned transactions locally when returned. Routing: paid hosted call; call sap_estimate_tool_cost first, then use sap_payments_call_paid_tool if the runtime cannot handle x402 natively. Signer boundary: hosted reads/builders never receive keypair bytes; value-moving results must be finalized locally when signing is required. Use exact field names from this schema; do not guess aliases or include private key material."

First observedJul 13, 2026

TDQS

B3.4/5.0

Behavior1/5

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

The description claims 'operation class read', which implies a read-only operation, but the annotation readOnlyHint is false, indicating potential side effects. This is a direct contradiction. Additionally, the description includes pricing and workflow details, but the contradiction overrides any positive contribution.

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

Conciseness3/5

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

The core purpose is stated in the first sentence, but the description includes lengthy SAP MCP boilerplate and execution guidance that, while useful, reduces conciseness. The structure is adequate but could be trimmed.

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?

Given the tool's simplicity (one parameter, output schema exists), the description covers the purpose, usage guidance, and workflow instructions. It is complete enough for an AI agent to understand how to use it, though the contradiction reduces trust.

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?

The schema covers 100% of parameters with a description for 'wallet' ('Wallet address to reverse-lookup'). The description does not add significant meaning beyond what the schema already provides, hence baseline 3.

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?

The description clearly states 'Reverse-lookup all .sol domains owned by a wallet' and 'Use to find the SNS domain associated with a wallet.' It distinguishes from sibling tools like sns_resolveDomain (which does forward resolution) and sap_sns_resolve_wallet, making the purpose specific and unambiguous.

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

Usage Guidelines4/5

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

The description explains when to use this tool ('Use to find the SNS domain associated with a wallet') and provides pairing guidance with sibling tools for SAP profile checks. It does not explicitly state when not to use it, but the context is clear.

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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