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Blockchain Money Map x402 MCP Schema Curb Appeal Grader
x402
Blockchain Money Map x402 MCP Schema Curb Appeal Grader is a paid API for AI agents from api.blockchainmoneymap.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Validates and scores the 'curb appeal' of an MCP tool schema by comparing its facts against reference facts, returning a quality or completeness grade.
Price / call$0.01
Success—
StatusUnknown
How this service works
Grades paid MCP tool names, descriptions, schemas, and output labels for buyer-agent clarity.
Output
A JSON response containing a curb appeal grade or score reflecting how well the submitted tool schema facts match the reference facts, along with any validation findings, completeness signals, or quality indicators that indicate how discoverable and appealing the tool listing would be to potential buyers or agents.
Example use cases
Grading a new tool listing before publishing
“Before I publish my new MCP tool called 'crypto-price-checker' with title 'Crypto Price Checker', description 'Fetches live cryptocurrency prices by ticker symbol', input schema requiring a ticker field, and output description 'Current USD price and 24h change' — can you run a curb appeal check on it using the same facts as the reference to see if it scores well?”
Comparing draft tool schema to approved reference
“I have a draft tool schema for 'pdf-summarizer' with title 'PDF Summarizer', description 'Summarizes uploaded PDF documents', input schema with a file_url field, and output description 'Bullet-point summary of the document' — please check its curb appeal against our approved reference version with the same fields to identify gaps.”
Auditing buyer-task alignment for a marketplace tool
“My MCP tool 'email-validator' has title 'Email Validator', description 'Checks if an email address is deliverable', input schema with an email field, output description 'Valid or invalid status with reason', and the buyer task is 'verify contact list emails before a campaign' — can you run a curb appeal grade to see how well the metadata matches what a buyer searching for that task would expect?”
Technical details
Endpoint
POSThttps://api.blockchainmoneymap.com/api/x402/x402-mcp-schema-curb-appeal-grader?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to programmatically assess the quality, completeness, and discoverability appeal of an MCP tool schema — particularly before listing a tool on an AI agent marketplace or x402-enabled directory. It is specifically designed to grade 'curb appeal' (how attractive and clear a tool listing looks to buyers and agents), which distinguishes it from generic JSON schema validators or linters. Best suited for tool publishers, marketplace operators, or agent developers who want a scored quality signal rather than just a pass/fail validation.
Side effects
- Missing required fields (tool_name, tool_title, tool_description, input_schema, output_description) in facts or reference_facts returns a validation error
- Mode must be set to 'check' — any other value will be rejected
- Input fields exceeding maxLength (500 chars) may be truncated or rejected
- Payment of $0.01 USDC via x402 not included results in HTTP 402 response
- Malformed JSON in input_schema object causes parse error
- additionalProperties in facts object beyond allowed keys causes schema rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mode | — | |
| facts | object | |
| policy | object | |
| reference_facts | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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