SALT19 URL to LLM Markdown Converter

x402

SALT19 URL to LLM Markdown Converter is a paid API for AI agents from api.salt19.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Fetches a web page by URL and converts its content to clean LLM-ready Markdown, with optional character truncation.

Price / call$0.01

Seller volume →—

Success—

StatusUnknown

How this service works

SALT19 is an independent applied AI systems lab behind EvoMind governed cognition, the MCP-native Agent Utility Grid, the ARCS research community, AeroClear UAS flight intelligence, and practical software for real-world work.

Output

A JSON object containing the page title, the full page content rendered as clean Markdown, the final resolved URL (after any redirects), and a boolean indicating whether the content was truncated due to the max_chars limit.

Example use cases

Research article ingestion for AI

“Grab the content of this research paper page at https://arxiv.org/abs/2401.00001 and convert it to markdown so I can feed it into my summarization pipeline — keep it under 80000 characters.”

Competitor landing page analysis

“Pull the content from https://anthropic.com and convert it to LLM-readable markdown, capped at 30000 characters, so I can analyze their messaging.”

News article extraction for agent

“Fetch https://techcrunch.com/2024/01/15/some-article and give me the article as clean markdown — limit to 20000 characters so it fits in my context window.”

Technical details

Endpoint

POSThttps://api.salt19.com/v1/url-to-llm-markdown

When to prefer

Choose this endpoint when you need to give an LLM or AI agent clean, readable content from a live webpage and want it formatted as Markdown rather than raw HTML. It is ideal for feeding web content into LLM context windows, agent pipelines, or RAG systems where HTML tags add noise. Prefer this over raw HTTP fetch when you want structured, readable output without writing your own HTML parser or Markdown converter.

Side effects

URL is unreachable or returns a non-200 HTTP status — may return an error or empty content
URL points to non-HTML content (PDF, binary) — conversion quality may degrade or fail
max_chars below minimum of 1000 — validation error
URL exceeds 2048 character limit — rejected at input validation
Page is JavaScript-rendered SPA — content may be incomplete if JS is not executed
Rate limiting or payment failure — request rejected

Input

Schema · Request body

Field	Type	Description
url	string
max_chars	integer

Output

Schema · Response

{
  "type": "json",
  "example": {
    "title": "Example Domain",
    "markdown": "# Example Domain\n\n...",
    "final_url": "https://example.com/",
    "truncated": false
  }
}

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How this service works

Output

Example use cases

Research article ingestion for AI

“Grab the content of this research paper page at https://arxiv.org/abs/2401.00001 and convert it to markdown so I can feed it into my summarization pipeline — keep it under 80000 characters.”

Competitor landing page analysis

“Pull the content from https://anthropic.com and convert it to LLM-readable markdown, capped at 30000 characters, so I can analyze their messaging.”

News article extraction for agent

“Fetch https://techcrunch.com/2024/01/15/some-article and give me the article as clean markdown — limit to 20000 characters so it fits in my context window.”

Technical details

Endpoint

POSThttps://api.salt19.com/v1/url-to-llm-markdown

When to prefer

Side effects

URL is unreachable or returns a non-200 HTTP status — may return an error or empty content
URL points to non-HTML content (PDF, binary) — conversion quality may degrade or fail
max_chars below minimum of 1000 — validation error
URL exceeds 2048 character limit — rejected at input validation
Page is JavaScript-rendered SPA — content may be incomplete if JS is not executed
Rate limiting or payment failure — request rejected

Input

Schema · Request body

Field	Type	Description
url	string
max_chars	integer

Output

Schema · Response

{
  "type": "json",
  "example": {
    "title": "Example Domain",
    "markdown": "# Example Domain\n\n...",
    "final_url": "https://example.com/",
    "truncated": false
  }
}