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Scrapling x402 Data Store

by io.github.bnth09productions-maker
OverviewDiscussionsAdmin

Payment test ($0.001)

ping
Read-only

PAID $0.001 USDC. Cheapest paid call to confirm your x402 payment works: returns ok, server time and catalog links. No parameters.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "ping"
  }
}

Input Schema

NameRequiredDescriptionDefault
api_keyNoOptional prepaid key (sk_scrapling_...) or catalog pass token (sdp_..., from pass_day/pass_month). Otherwise pay per call with x402 via _meta['x402/payment'].

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / api_key / description
      Previous value: -"Optional prepaid key (sk_scrapling_...). Otherwise pay per call with x402 via _meta['x402/payment']."New value: +"Optional prepaid key (sk_scrapling_...) or catalog pass token (sdp_..., from pass_day/pass_month). Otherwise pay per call with x402 via _meta['x402/payment']."
  2. Added

TDQS

A3.7/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true and openWorldHint=false. The description adds important behavioral context beyond annotations: the $0.001 USDC cost and the basic return shape (ok, server time, catalog links).

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

Conciseness4/5

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

The description is short and front-loads the paid test purpose, cost, and return values. The final 'No parameters' sentence is not just unnecessary but inaccurate, which prevents a higher score.

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?

For a simple ping/payment-test tool with annotations and a fully documented schema, the description covers cost and return values well enough. Its main gap is omitting the optional api_key auth path and incorrectly stating there are no parameters.

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

Parameters2/5

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

Schema coverage is 100%, so the schema already documents the optional api_key parameter. However, the description says 'No parameters,' which directly contradicts the schema and may cause an agent to overlook the optional authentication path.

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?

The description states a specific action: the cheapest paid call to confirm x402 payment works. It also lists expected returns (ok, server time, catalog links), making the tool's role clear, though it does not explicitly contrast with sibling free or paid tools.

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?

It clearly indicates when to use it: to confirm x402 payment works, positioned as the cheapest paid call. There is no explicit when-not guidance or named alternative, but the usage context is sufficiently clear.

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

All Scrapling x402 Data Store toolsInspect
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