SchemaSure — structured extraction

io.github.noamjosePublished by GitHub account noamjosev0.4.0Updated Oct 24, 2026

Extract schema-valid JSON from text/HTML or document images. Pay with x402 on Base or MPP on Tempo.

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Overview

AI-generated overview

Lets an assistant extract schema-valid JSON from text, HTML, or document images, paying per call with crypto.

What you can do
SchemaSure is a local stdio MCP server that turns unstructured input into JSON matching a caller-supplied schema. It handles text and HTML, and document images in its V2 mode. Paid calls are settled per request using x402 with USDC on Base or MPP with USDC.e on Tempo, with signing kept on the local machine.
When to use it
Useful when an assistant needs reliable structured output from messy text, web pages, or scanned document images and the user is willing to pay per extraction. Text extraction has a free V1 evaluation path; image extraction is V2-only and always requires a wallet.
Requirements
Runs as a local process, started with npx from the npm package @noamjose/schemasure over stdio. Desktop only. Configuration uses the environment variables SCHEMASURE_API_URL, SCHEMASURE_MAX_PRICE_USD, SCHEMASURE_PAYMENT_PROTOCOL, SCHEMASURE_PRIVATE_KEY, and SCHEMASURE_TIMEOUT_MS. No accounts or headers are declared; paid mode needs a funded EVM spending wallet.
Before you install
Paid calls spend real crypto. SCHEMASURE_PRIVATE_KEY is an optional EVM key for a dedicated spending wallet; it signs payments locally and is never sent to SchemaSure. Set SCHEMASURE_MAX_PRICE_USD as a client-side per-call cap. Extraction sends the supplied text, HTML, or document images to the SchemaSure service, a third party.

Installation

In SourceWeft

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

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

2
  1. v0.4.0LatestOct 15, 2026
  2. v0.3.0Sep 16, 2026

Score

25% 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 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

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  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

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

  • License10 pts

    Declare a license in the repository or the registry entry.