AgentPay (all tools)

Web Extract: Fetch a URL and return markdown, metadata and links.

extract_page

Read-only

Fetch a URL and return markdown, metadata and links. Costs $0.005 USDC per call (x402 or credits).

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "url": "<url>"
    },
    "name": "extract_page"
  }
}

Input Schema

Name	Required	Description	Default
`url`	Yes	http(s) URL to read
`maxChars`	No	Max markdown characters (1000-200000, default 50000)

Schema Changelog

Changes observed during successful MCP inspections.

First observedOct 1, 2026

TDQS

A3.6/5.0

Behavior4/5

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

Annotations already declare readOnlyHint and openWorldHint, so the safety profile is covered. The description adds meaningful behavioral context the annotations lack: the per-call price and payment mechanisms (x402 or credits), which is operationally important for an agent deciding whether to invoke it.

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, capability stated first, cost second. No filler and nothing redundant with the schema or annotations.

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 two-parameter read-only fetch with full schema coverage and no output schema, the description covers purpose, return shape, and cost. It could still say something about failure modes (non-HTML pages, redirects, timeouts) to be fully complete.

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 description coverage is 100% (url and maxChars are both fully documented with ranges and defaults), so the schema carries the parameter burden. The description adds no parameter-level detail beyond what the schema provides, which is the expected baseline.

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 (fetch) and resource (URL) plus the three return artifacts (markdown, metadata, links), so an agent knows exactly what comes back. It does not explicitly differentiate itself from siblings like tools_pdf_text, but the web-page scope is clear enough that confusion is unlikely.

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 guidance on when to use this versus the lookup_* or tools_* siblings, and no note about what content types it handles or fails on. The only extra context is cost, which is not usage-selection guidance.

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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