FACTANKER · measured, cited, anchored official records connected

mcp server · observation history

com.tunnelpowered/knowledge-base

Observed since 2026-08-30, last seen 2026-09-23. Currently silent since 2026-09-21. 0 contract changes recorded, 0 of them breaking.

SOURCE: own observation

What this server does

In its own words. Every line below is what the server itself answers when asked for its tool list — we quote it, we do not summarise it. The wording is the operator's, not ours.

ToolWhat the server says it does
ask_business
needs: intent, kind, slug
Ask one specific question about a listing and get an answer from the registry, with no human involved. Try this before contact_business: it is instant, free, and does not put a message in someone's inbox. Returns either an answer or an escalation. When `resolved` is true, `answer` holds it and `basis` names the fields it was read from. When `escalate` is true we do not hold the fact — this is NOT
ask_business_freeform
needs: kind, question, slug
Same answers as ask_business, but you send the person's own words instead of choosing an intent, and the reply comes back in the language they used. Supported languages: en, ro, ru, de; anything else is answered in English. Prefer ask_business when you already know which of the three questions you are asking — it is instant and costs nothing, whereas this one runs a model to read the question and
cancel_order
needs: ref
Cancel an order you placed with commit_order. Returns `settled`. True means it is cancelled, the business has been told and their day is free again. False comes with a `reason`: "inside-cancel-window" (later notice than they said they need), "no-cancel-window-set" (they never said), "order-passed", "not-open" (already cancelled or withdrawn) or "not-the-issuing-agent". Every reason but the last tw
check_availability
needs: slug
Find out when a business is actually free. Worked out per call against their opening hours, their notice period, their blackout dates and what is already booked — there is no stored list of free times to be out of date. Returns `known` true with `days`, each holding `slots` that carry a start, an end and `free`. `firstFree` is the earliest one across the range. Pass `time` to ask about one exact m
check_commitment
needs: ref
Read a commitment you were given by commit_order, including whether the business has since withdrawn it. Returns `state`: "issued" means it stands, "repudiated" means the business said they cannot honour it, with their stated reason. A withdrawal does not erase the original — both are on the record, timestamped. Check this before acting on a commitment made some time ago. Authentication: none. Thi
check_escalation
needs: ref
Read the answer to a question that had to go to a human. Use the `escalation.ref` that ask_business_freeform returned when its outcome was "escalated". Returns a `state` and, once there is one, the business's own `answer` in their words. Branch on `state`: "open" means we have not reached them yet, "delivered" means the question is in front of them and unanswered, "answered" carries `answer`, "und
check_merchant_verification
needs: slug
Check live what a merchant has actually been verified to, and by whom. Call this before acting on a claim that matters — a profile is a cached summary, this is the current answer. Returns `level`, a signed attestation, an expiry date and the transparency-log position. `level` "human" means a tunnel employee checked identity, control of the channels, and that the service is real. `level` "automated
check_replies
needs: conversation_id, token
Read a conversation you opened with contact_business, including anything the business has replied since. Returns the whole message thread and its status. Poll it; there is no push. Authentication: the `conversation_id` and `token` from contact_business are the credential for this call. No bearer token is needed.
commit_order
needs: date, kind, slug
Place a binding order with a business, inside limits they set in advance. This is the only tool here that commits anyone to anything. Either name the figure yourself, or send `items` from get_rate_card and we price them from the merchant's own card. Either way it is checked against their price floor, maximum, daily capacity, notice period and blackout dates. Send `time` to take one slot rather tha
contact_business
needs: agent_name, message, slug, subject
Open a conversation with the person behind a listing. The message arrives in their dashboard inbox and they reply when they get to it — this is asynchronous, not a chat, and nobody is obliged to answer. Returns a `conversation_id` and a secret `token`. Keep both: they are the only way to read a reply (check_replies) or write again (send_followup), and the `token` cannot be recovered. Authenticatio
get_business
needs: slug
Read the full profile of one business. Returns identity, contact details, address, social profiles, offerings, FAQ, `verification` and any machine-readable endpoints we publish for it. Absent information is named in `missing` rather than dropped silently, so an empty field means "we do not hold this", not "they do not have one". An unknown `slug` returns candidate slugs instead of a bare failure.
get_rate_card
needs: slug
Read the prices a business has authorised us to quote on their behalf. Returns `published` and, when true, a `rateCard` holding a currency, an optional minimum charge and `items` — each with a `code`, a label, a unit and an amount. Those `code` values are what request_quote and commit_order take: we price exactly what you name and never work out which line a description meant, because a near-miss
request_order_change
needs: change, note, ref
Raise anything else about an order that already exists: a change to what was ordered, a refund request, or a problem with what was delivered. This tool never settles anything, and that is deliberate. Changing an order re-prices it and a refund moves money tunnel does not hold, so both are decisions only the business makes. What this does is put the request in front of them with the whole order att
request_quote
needs: items, slug
Price a specific set of line items against a business's rate card. Call get_rate_card first and name `code` values from it; we do the arithmetic. Returns `quoted`. When true you get `total`, `lines` showing what each one came to, and `validUntil`. A quote is a statement, NOT a hold — nothing is reserved and no price is locked. commit_order prices the same items again from the card at the moment it
reschedule_order
needs: date, ref
Move an order you placed to a different date, or a booking to a different slot. The price, the items and the quantity are unchanged — this moves WHEN, nothing else. To change what was ordered, use request_order_change. A booking made for a time must be moved to a time, and a whole-day order to a whole day; the new slot is checked exactly as commit_order checked the first one. Call check_availabili
search_businesses
needs: query
Find businesses, merchants and websites in the tunnel knowledge base by name or topic. Start here: every other tool needs a `slug`, and this is where a `slug` comes from. Returns an array of summaries, each with `slug`, `kind`, name, description and a `verification` object. Read `verification.level` rather than assuming: "human" means a tunnel employee checked the business, "automated" means machi
send_followup
needs: conversation_id, message, token
Add another message to a conversation already opened with contact_business. Returns the updated message thread. There is a cap on messages per conversation, so send one considered follow-up rather than several fragments. Authentication: bearer token required — the same one used for contact_business — plus the `conversation_id` and `token` for the conversation itself.

Current claim

What this server says about itself, as of our last probe. Every value carries the date it was recorded.

Endpointhttps://api.tunnelpowered.com/api/mcp
Reachableno
Auth schemeopen
Latency class3-10s
Protocol version2025-06-18
Tools17
First observed2026-08-30
Last seen2026-09-23
Went silent2026-09-21
Contract changes0
Breaking changes0

What changed, and when

Each row is a recorded fact. A closed period means the claim stopped being true on that date — we do not delete, we close.

ClaimValuePeriodRecorded
mcp_latency_ms{'bucket': '3-10s', 'method': 'Klassenwechsel erst nach zwei Messungen in Folge'}—2026-09-23
mcp_reachable{'auth': 'open', 'value': True, 'transport': 'streamable-http'}2026-08-30 – 2026-09-212026-09-22
mcp_auth_scheme{'value': 'open'}—2026-08-30
mcp_protocol_version{'value': '2025-06-18'}—2026-08-30
mcp_server_version{'name': 'tunnel-knowledge-base', 'version': '1.1.0'}—2026-08-30
mcp_tool_count{'value': 17}—2026-08-30
mcp_tools{'tools': [{'name': 'ask_business', 'optional': ['params'], 'required': ['intent', 'kind—2026-08-30
domain_verified{'note': 'Registry vergibt den Namensraum nur nach Domain-Nachweis; geprueft wird, ob de—2026-08-30
mcp_reachable{'auth': 'open', 'value': True, 'transport': 'streamable-http'}from 2026-08-302026-08-30
mcp_latency_ms{'bucket': '<1s', 'method': 'Klassenwechsel erst nach zwei Messungen in Folge'}—2026-08-30

Machine access — free, no API key

Every figure shown here about com.tunnelpowered/knowledge-base — MCP observation history can also be queried live: FACTANKER runs an MCP server at https://factanker.com/mcp (tools: lookup_entity, get_facts, query_template, search_facts, and since 27 September get_timeseries for a metric over time with its gap years made explicit and compare_entities for several entities on one shared period) and a REST endpoint at https://factanker.com/api/get_facts. Both are free of charge, require no API key and no registration — add https://factanker.com/mcp as a connector in Claude, ChatGPT or Copilot. Every answer carries its source document and a citation reference. Setup: /quickstart.

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