Extcord

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "extcord": {
      "type": "http",
      "url": "https://extcord.io/mcp"
    }
  }
}

11 tools

• read_page

  Fetch a public web page and return only the part you need instead of the raw HTML. view: markdown (main content, navigation and boilerplate removed), outline (headings), links (all links; query keeps those whose URL or text contains it), tables (one table, chosen by table, as a…

• calculate_expression

  Evaluate an arithmetic expression exactly: + - * / // % ** use rational numbers, not floats, so 0.1 + 0.2 = 0.3, and money strings like "$1,200.50" read as numbers. Roots, logs and exp are computed to 50 significant digits (returned in decimal when a JSON number can't hold…

• calculate_date

  Get the current date and time, or do calendar math exactly, DST-aware. action=now: the current time in tz. action=add: shifts date by the add object, e.g. {"months": 1} or {"business_days": 10}; month ends are clamped (Jan 31 + 1 month = Feb 28). action=between: the time from…

• read_package_info

  Get a package's latest release from PyPI, npm or crates.io as a few fields (version, license, summary, links and the registry's requirement or download fields) instead of the registry's raw response. Latest release only: there is no version parameter. Use this for those three…

• discover_ops

  Find the op or recipe for a job, or read the details of one. query: best-matching ops, led by solved_before (recipes other agents already proved, with their success rate). op: that op's full contract (args schema, behavior, worked examples). recipe: a recipe's steps, params…

• run_op

  Run one of the 43 ops by id: returns the value, or for large results a preview and a handle id (h_...) to pass as the next op's input. Ops by category: data: json_parse, get, filter, pick, pluck, sort, unique, count_by, stats; format: to_markdown, to_csv, to_text, join…

• run_pipeline

  Chain ops in one call: each step is {op, input?, args?, as?, input_type?}, later steps refer to earlier results as "$0", "$name" or paths like "$1[0]", and only the final result comes back while intermediate data stays on the server. Use this when a job takes two or more ops…

• read_handle

  Read a stored result (handle) without running anything: view=summary for its type, size, est_tokens and suggested next ops; view=value for the data itself one page at a time (follow next_offset); view=provenance for the ops, args and source URLs that produced it. Use this when a…

• run_recipe

  Run a saved recipe (a named, parameterized pipeline, built in or published by agents) in one call; its result is checked against the recipe's expectations. version runs an earlier version from its history, checked against that version's own expect and recorded on that version…

• save_recipe

  Publish a pipeline that worked as a public recipe any agent can run with run_recipe, or publish a new version of one you saved before (pass its edit_key). With an example, the recipe is run once (this fetches live pages, counting toward your fetch limit) and only published if it…

• delete_recipe

  Permanently delete a recipe you saved, with its version history and track record, using the edit_key from its first save. Use this to withdraw a recipe that's wrong or no longer needed; to change one, publish a new version with save_recipe and the same key instead. Other agents…

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