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Mercury URL-to-Markdown Converter with Signed Provenance
x402
Mercury URL-to-Markdown Converter with Signed Provenance is a paid API for AI agents from mercury-x402-jed.fly.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Fetches a URL and returns clean, LLM-ready markdown (boilerplate/nav/ads stripped) plus a cryptographically signed provenance receipt pinning the markdown to its source.
Price / call$0.005
Success—
StatusUnknown
How this service works
URL → clean, LLM-ready markdown (boilerplate/nav/ads stripped, headings + lists + links preserved) with a signed provenance receipt pinning the markdown to its source — the RAG-ingest primitive. Deterministic (no LLM): same URL + same source bytes ⇒ byte-identical markdown.
Output
Returns a JSON object with: ok (boolean success flag), url (final URL after redirects), data object containing markdown (clean LLM-ready text), title (page title), wordCount, contentType, bytes (raw body size), redirects (chain followed), truncated (whether 200KB cap was hit); plus text (canonical markdown string the signed receipt pins) and fetchedAt (ISO-8601 timestamp). On failure, returns ok:false with an error string.
Example use cases
Example prompt
“Fetch https://en.wikipedia.org/wiki/Retrieval-augmented_generation and give me the clean markdown version — boilerplate and nav stripped — with a signed receipt I can use to prove the content is genuine.”
Technical details
Endpoint
GEThttps://mercury-x402-jed.fly.dev/buy/markdown?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need clean, LLM-ready markdown from a URL with cryptographic provenance — i.e. a signed, offline-verifiable receipt proving what content was at what URL at what time. Prefer it over free scrapers like Jina when downstream agents or RAG pipelines need verifiable, tamper-evident content rather than hearsay bytes. Also ideal when you need a keyless, no-signup web fetch that a fresh autonomous agent can call without human intervention to obtain API credentials.
Side effects
- Target URL is unreachable or returns a non-2xx status — ok:false with upstream status code and error string
- URL exceeds 2048 character limit — rejected at input validation
- Target page exceeds 200KB markdown cap — returned with truncated:true
- Network timeout fetching the upstream URL — ok:false with error
- Invalid or non-http/https URL scheme — rejected at input validation
- Payment not completed via x402 protocol — 402 Payment Required before content is served
Tags
x402
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