SAP MCP Server

Find SAP Tools By Category

sap_find_tools_by_category

Find on-chain tool descriptors by SDK tool category name or numeric category. SAP MCP context: Read-only SAP SDK wrapper against the configured Solana RPC and SAP program. Use these reads to inspect current chain state before mutating registry, payment, reputation, memory, or tool accounts.

SAP MCP execution guidance: Intent: SAP MCP tool workflow. Pricing: priced by hosted x402 challenge. 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
`limit`	No	Maximum number of tools to return (default: 50)
`hydrate`	No	Whether to include full hydrated tool descriptors in results (default: true)
`category`	No	Tool category name (e.g. "defi", "infrastructure") or numeric category ID

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 26, 2026

changedInput schema / description

Previous value: -"Find SAP Tools By Category input schema. Intent: SAP MCP tool workflow. Pricing: free; call directly without x402. Routing: free hosted call; call directly and keep it small/exact when possible. 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."New value: +"Find SAP Tools By Category input schema. Intent: SAP MCP tool workflow. Pricing: priced by hosted x402 challenge. 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."

Changed1 schema field changedJul 24, 2026

addedInput schema / description

Added value: +"Find SAP Tools By Category input schema. Intent: SAP MCP tool workflow. Pricing: free; call directly without x402. Routing: free hosted call; call directly and keep it small/exact when possible. 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

B3.1/5.0

Behavior1/5

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

The description states 'Read-only SAP SDK wrapper', but annotations have readOnlyHint=false. This is a direct contradiction. Additionally, the description does not disclose behavioral traits beyond what annotations provide; the contradiction undermines transparency.

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

Conciseness2/5

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

The description is overly long with boilerplate text repeated in the input schema (e.g., pricing, routing, signer boundary). It could be much more concise by removing redundant execution guidance and focusing on the tool's core behavior.

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

Completeness2/5

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

Despite having an output schema, the description fails to clarify the contradiction with annotations and lacks details about the tool's return format or behavior when parameters are omitted. The pricing/routing context is useful but not enough to compensate for the inconsistency.

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 the baseline is 3. The description merely restates 'SDK tool category name or numeric category' which is already in the schema. No new meaning is added beyond the parameter descriptions.

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 'Find on-chain tool descriptors by SDK tool category name or numeric category', specifying the verb 'find' and the resource 'tool descriptors' with a clear filtering criterion (category). This distinguishes it from sibling tools that have different purposes.

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 provides usage context: 'Use these reads to inspect current chain state before mutating registry, payment, reputation, memory, or tool accounts.' However, it does not explicitly contrast with alternatives or specify when not to use this tool. The pricing and routing guidance is added but not directly about usage vs siblings.

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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