Micro MCP server

• Registry namemu.micro/muverified in the MCP registry

The registry name sits under micro.mu. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-19
• Tools167
• Server calls itselfmicro
• Server version1.0.0
• Protocol version2025-03-26

On 2026-10-19 the server answered initialize and tools/list without a sign-in. First answer in 145 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 2 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
• Answeredmeasuring2 of the 7 daily checks it takes to print a share
• Median first answer561 ms
• Space in an agent's context≈ 17,424 tokensthe definitions of all its tools (167), which an agent carries on every turn
• Tool definitionsB · 89 of 100

• No description an agent can choose by: 1 of 167
• Parameters without a description: in 18 of 167
• Not saying whether it only reads or can destroy: 88 of 167

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• apps_build

  Queue a durable app build and immediately return its ID and status URL. Use BuildStatus to retrieve progress and the completed app. Reuse request_key on retries. Builds survive server restarts

• apps_builds

  List your app build jobs and outcomes

• apps_buildstatus

  Read your saved app build status by ID. Poll until complete or failed; the same ID survives restarts.

• apps_collection

  List your saved apps and their source references

• apps_create

  Create an app — a small, self-contained HTML tool hosted here. Takes the HTML; apps_build writes it for you from a description Apps run in a sandbox. Use fetch('/api/v1/<service>/<method>') or mu.service(name, method, args); mu.api does…

• apps_edit

  Edit an app you own — its name, description, tags, icon, HTML or price. Fields left out keep their value Apps run in a sandbox. Use fetch('/api/v1/<service>/<method>') or mu.service(name, method, args); mu.api does not exist. Direct…

• apps_embed

  Show a saved micro app in the conversation. Embedding preserves access permissions and does not publish the app

• apps_fork

  Fork an app into your own account, to change independently of the original

• apps_read

  Read an app or build status by slug, including source HTML for apps you own

• apps_search

  Find your saved private micro apps by name, description or tag

• apps_test

  Test an app by checking its HTML and checking supported SDK calls; this is not browser execution, so an author finds out what is broken without opening it

• archive_list

  With a kind, the most recent entries of it. Without one, what kinds are archived and how much of each

• archive_search

  Search everything this instance has collected, across news, video, markets and posts at once. Use it when the question crosses a service, or when you do not know which service would hold the answer; news_search is narrower and better when…

• blog_create

  Publish a post to the caller's blog. For anything meant to be read later by other people — notes, write-ups, announcements. For a private note to yourself, prefer files or memory

• blog_delete

  Delete one of the caller's own blog posts, by id or title. Refuses posts written by anyone else, and refuses an ambiguous title rather than guessing. Irreversible, so confirm with the user first

• blog_list

  Read recent blog posts — titles, snippets and ids

• blog_read

  Read one blog post in full, by id or by title. Use after blog_list has found a candidate and the summary is not enough

• blog_update

  Edit one of the caller's own posts. Fields left out keep their current value

• bookmarks_add

  Save an article, video, blog post or link privately. Re-saving preserves its note

• bookmarks_annotate

  Set or clear a private note on one saved item

• bookmarks_delete

  Remove one of your saved items

• bookmarks_get

  Read one saved item and its private note, with available archived text. Videos have descriptions, not transcripts

• bookmarks_list

  Find your saved reading by text or kind, newest first. Private notes are searched too

• browser_read

  Open a page in a real browser and read it after its JavaScript has run. Use it when web_fetch comes back empty or with only a nav bar, which is what a page that builds itself in the browser looks like to a plain fetch. web_fetch is free…

• browser_shot

  Photograph a page and get back a URL for the picture. What it looks like, rather than what it says — a chart, a layout, a page whose content is an image. Ask for full to capture past the first screenful

• chat_messages

  Read the recent conversation in a discussion room

• chat_rooms

  List discussion rooms that currently have activity

• chat_send

  Say something in a discussion room, as the caller. Use chat_rooms to find the room id

• chat_source

  Read one stored message owned by the caller, by id

• chat_sources

  List stored message ids owned by the caller

• contacts_add

  Save someone to the address book. Adding a name already there updates it rather than making a second card

• contacts_delete

  Remove someone from the address book

• contacts_find

  Look someone up in the address book by name, part of a name, or address. Use this before sending mail to a person named rather than addressed

• contacts_list

  List everyone in the caller's address book

• docs_delete

  Delete one of your documents, by id

• docs_list

  List your documents, most recently changed first, with an optional search over titles and bodies. Use this to find an id

• docs_read

  Read one of your documents in full, by id or by exact title

• docs_write

  Write a document — a title and a markdown body. Pass an id to replace one you already have. Private unless you set public. For something long enough to re-read; for a short thing to remember, use notes

• events_create

  Schedule a reminder or event at a given time; optionally repeating, and optionally running a prompt through the agent when it fires

• events_delete

  Cancel an event by id

• events_free

  Find when the caller has nothing booked — open slots of a given length, within working hours

• events_list

  List the caller's upcoming events and reminders, each with its id

• events_read

  Read one schedule owned by the caller

• events_update

  Update one of your scheduled events without changing its id. Omitted fields stay unchanged; empty notes, prompts or recurrence clear them

• files_delete

  Delete a file you own

• files_driveread

  Read the caller's connected Google Drive. Read-only; connect in Account first.

• files_drivesearch

  Search the caller's connected Google Drive. Read-only; connect in Account first.

• files_get

  Read a stored file back by its id

• files_list

  List the caller's stored files, newest first

• files_put

  Store a file and get a URL for it — a report, a CSV, a transcript

• files_share

  Make a file readable by anyone with its URL, or private again

• flights_airport

  Report what is happening at an airport right now: what is on the ground, what is on approach and what is climbing out. Live positions, not the timetable, so it says nothing about scheduled or delayed departures

• flights_overhead

  List the aircraft flying near a location right now, nearest first, with altitude, speed, heading and distance. Live positions broadcast by the aircraft themselves, not a schedule

• flights_status

  Scheduled, estimated and actual flight arrival/departure times from Aviationstack. Requires a configured provider.

• flights_track

  Find where an aircraft is right now by flight number ('BA117'), radio callsign ('BAW117') or registration ('G-ZBKL'). Only sees aeroplanes that are airborne and in range of a receiver — not finding one does not mean the flight was cancelled

• food_hygiene

  Food hygiene ratings for UK businesses, from the Food Standards Agency inspections. Takes a business name, a town or postcode, or a lat/lon to look around

• food_product

  Look up a packaged food by its barcode — name, brand, ingredients, allergens, nutrition per 100g, Nutri-Score and how processed it is

• food_search

  Find packaged foods by name or brand, with the barcode of each so one can then be looked up in full

• forms_delete

  Delete your form and its responses, or pass response_id to delete just one response.

• forms_list

  List your forms, 50 at a time, with offset pagination.

The first 60 of 167, as the server listed them.