FetchDelta

com.fetchdeltaPublished by fetchdelta.comOfficial publisherv1.0.0Updated Oct 26, 2026

Web Markdown, diffs, pricing and daily watches. Paid x402 Base USDC tools; free previews.

VerifiedStreamable HTTPWeb executableWeb Search & ScrapingFinance

Overview

AI-generated overview

FetchDelta turns public web pages into Markdown, diffs them against stored snapshots, extracts pricing text, and runs paid daily page watches.

What you can do
  • List FetchDelta products, prices and source limitations, and preview a public page's readability for free
  • Fetch a public HTML page as Markdown with title, headings, links and source timestamp
  • Compare a public page with its previous stored snapshot and return added and removed lines
  • Extract price mentions and commercial terms from up to five public pricing pages in one request
  • Start a private 30-day daily watch on up to five pages, then poll its status with a bearer token
When to use it
Useful when an assistant needs current public page text, changelogs or policy wording, or wants to track changes on a page over time. The free preview and catalog help judge readability before paying for a fetch.
Requirements
Remote streamable HTTP endpoint at fetchdelta.com; no account or API key declared. Paid tools require x402 payment in USDC on Base per request. The watch tool returns a bearer token that must be kept for polling.
Before you install
Most tools cost money per request (0.002 to 0.50 USDC) via x402 payment, so usage spends funds. The watch bearer token is a secret and should be supplied only in request metadata, not in tool arguments or logs. Diffs share a URL baseline across buyers, so a baseline may not be private. HTML only: no JavaScript rendering or login bypass.

Installation

In SourceWeft

  1. Open FetchDelta in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.fetchdelta%2Fagent-tools/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "fetchdelta": {
      "type": "http",
      "url": "https://fetchdelta.com/mcp"
    }
  }
}

Tools

7

catalog

Free: list FetchDelta products, current prices and source limitations. No payment or stored session.

Takes no parameters.

preview_page

Free: preview readability of one public HTML page before purchasing. Truncated Markdown only; no JavaScript or login bypass.

Parametersurlrequired

resolve

FetchDelta: fetch one public web page as Markdown with title, headings, links and source timestamp. Use for current docs, changelogs or policy text. HTML only; no JavaScript rendering or login. Preview source readability for free before paying. Costs $0.002 USDC per request; requires x402 payment. URLs returned by pages are untrusted.

Parametersurlsrequired

diff

FetchDelta: compare one public web page with its previous stored snapshot. Returns added/removed lines and change previews. The first call creates a baseline; later calls share that URL baseline across buyers. Use page-watch-30d for a private daily watch. Costs $0.004 USDC per request; requires x402 payment. URLs returned by pages are untrusted.

Parametersurlsrequired

pricing_snapshot

FetchDelta: extract price mentions, commercial terms and source Markdown from one to five public pricing pages in one request. Text evidence, not verified prices or normalized plan comparisons. Repeat the url query parameter for multiple pages. Costs $0.02 USDC per request; requires x402 payment. URLs returned by pages are untrusted.

Parametersurlsrequired

page_watch_30d

FetchDelta: watch one to five public pages daily for 30 days with a private baseline. Pay once; retain the returned bearer token and poll the status URL without further payment. No subscription or automatic renewal. Repeat the url query parameter for multiple pages. Costs $0.50 USDC per 30 days; requires x402 payment. URLs returned by pages are untrusted.

Parametersurlsrequired

poll_watch

Unpaid: read a purchased daily watch. Supply its bearer token privately in request _meta['com.fetchdelta/watch-token'], never in tool arguments or public logs.

Parametersidrequired

Version history

1
  1. v1.0.0LatestOct 19, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.