Japan Organic JAS Certified Operators

io.github.mk-career-planningPublished by GitHub account mk-career-planningv0.1.0Updated Oct 26, 2026

Is this operator in Japan's organic JAS certified list? Hosted; tracks list changes. Relay only.

VerifiedStreamable HTTPWeb executableData & AnalyticsBusiness & Commerce

Overview

AI-generated overview

Hosted MCP server that checks whether an operator appears in Japan's official MAFF organic JAS certified operator lists and tracks how those lists change.

What you can do
  • Look up operators in MAFF's organic JAS certified lists by certification number, organization name, country, prefecture, category or certifier, with found and no-longer-listed outcomes
  • See which listings were added, changed, dropped or returned since a given date, based on the service's own record of list versions
  • Re-fetch the stored result of a settled paid call by receipt id when a response was lost
  • List the server's tools with prices, data sources, licensing, daily limits and data freshness
When to use it
Useful when you need to verify whether a supplier or organization holds Japanese organic JAS certification, or want to monitor additions, changes and removals in MAFF's lists over time without checking the source files by hand.
Requirements
A remote streamable HTTP endpoint; no local runtime, account, API key or environment variables are declared. Some calls are paid, and a receipt id is needed to re-fetch a settled paid result.
Before you install
Some tools are paid calls, so usage can cost money; check prices and daily limits with the catalog tool first. The service is a relay of MAFF data and keeps its own version history, so treat change records as the service's observations rather than official publications. Paid results are retained for 90 days after settlement.

Installation

In SourceWeft

  1. Open Japan Organic JAS Certified Operators 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/io.github.mk-career-planning%2Fjp-organic-jas/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": {
    "japan-organic-jas-certified-operators": {
      "type": "http",
      "url": "https://jp-organic-jas-production.mk-career-planning.workers.dev/mcp"
    }
  }
}

Tools

4

catalog

Catalog: tools, prices and limits

List the tools of this server with prices, data sources, licensing, daily limits and data freshness.

Takes no parameters.

organic_jas_lookup

Look up a Japanese organic JAS certified operator

Is this operator in Japan's official MAFF list of organic JAS certified operators (domestic or foreign)? Look up by certification number, operator name (2+ chars, organizations only), country, prefecture, category or certifier. Returns found, no_longer_listed (reason not published or inferred), no_match_in_checked_list (does not mean not organic) or unknown, with certifier, category, municipality or country, certified_on, first/last seen. Confirm with the certification body.

Parameterslimitcountrycertifierprefectureoperator_nameproduct_categorycertification_number

organic_jas_changes

Organic JAS certified operator list changes

Which organic JAS listings were added to, changed in, dropped from or returned to MAFF's official lists since a date? From this service's own record of list versions (MAFF keeps no old files). Each change has the listing id, observed_at, last_seen_at, changed fields and before/after; personal-looking names are withheld and the reason for a drop is not published or inferred. History starts at tracking_since. Free window: last 30 days.

Parameterslimitsincerequiredcountrychange_type

get_receipt

Get receipt of a paid call

Re-fetch the stored result of a settled paid call by its receipt_id, for when the response was lost after payment. Free. Unknown or unsettled receipt ids return RECEIPT_NOT_FOUND. Results are kept for 90 days after settlement.

Parametersreceipt_idrequired

Version history

1
  1. v0.1.0LatestOct 17, 2026

Score

83% 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
  • 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.