Overfit MCP server

• Registry namede.overfit/overfitverified in the MCP registry

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

• Stateanswerschecked 2026-10-26
• Tools24
• Server calls itselfoverfit
• Server version0.5.1
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 199 ms.

• Its tools do every use case we checked: search public tenders from EU and German authorities; look up German company financials for sales research.
• 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
• What an agent can do with it2 of 2 use cases
• Answeredmeasuring2 of the 7 daily checks it takes to print a share
• Median first answer610 ms
• Space in an agent's context≈ 9,580 tokensthe definitions of all its tools (24), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results0 of 24 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

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 (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). 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 →

• search_tenders

  Searches German and EU public tenders by meaning: returns notices ranked by how well they match a natural-language description (German or English) of what the user offers or looks for. Intended for requests by topic, product, service or…

• list_tenders

  Lists German and EU public tender notices by exact filters (status, Landkreis, CPV prefix, sector, contracting authority, deadline within 14 days and more), with optional keyword search (`q`, full text, not by meaning) and sorting, e.g…

• get_tender

  Returns the details of one tender notice by its uid: title, contracting authority (name, address, email, phone, website), all dates, CPV/NUTS codes, AI summaries (short, medium, long, plain language), key deliverables, risk flags…

• get_tender_documents

  Returns the complete record of one tender: all fields of get_tender plus AI-structured sections (description, criteria, …), a Q&A list (e.g. 'Is a security clearance required?'), topic facets and the list of procurement documents (file…

• get_tender_counts

  Returns current counts of tender notices: open, urgent (deadline within 14 days), awarded and total, plus the size of the semantic search index, the embedding model name and the health of the portal links. Intended for requests where the…

• list_tender_portals

  Lists the tender portals the notices come from (e.g. EU TED, the federal portal) with the number of notices per portal and status. Intended for requests where the user asks which portals are covered or how many notices come from a given…

• check_eu_threshold

  Checks whether a public contract value is above the EU procurement threshold. Intended for requests where the user asks whether a contract must be advertised EU-wide or which procurement regime applies. Uses the thresholds valid…

• calculate_tender_deadline

  Calculates the end date of a submission or participation deadline in an EU procurement procedure. Intended for requests where the user asks by which date bids or requests to participate are due, or whether the minimum period can be…

• calculate_standstill_period

  Calculates the earliest date a contracting authority may award a contract after informing the unsuccessful bidders under § 134 GWB. Intended for requests where the user asks when the standstill period ends or from which date the award may…

• count_working_days

  Counts the working days between two dates, or adds a number of working days to a start date, for any of the 16 German federal states with that state's public holidays (rules as of 2026-08-15). Intended for requests where the user asks how…

• list_public_holidays

  Lists the public holidays of a year in Germany, nationwide or for one of the 16 federal states including state-specific holidays (rules as of 2026-08-15). Intended for requests where the user asks which public holidays fall in a year or…

• find_procurement_procedures

  Lists which procurement procedure types are permitted for a contract, each with status frei (permitted), voraussetzung (permitted under conditions) or nein (not permitted) and its legal basis (GWB, VgV, UVgO; rules as of 2026-08-15)…

• score_bids

  Calculates scores and a ranking of procurement bids from bid prices and given quality scores, with one of the UfAB scoring methods (§ 127 GWB, § 58 VgV; UfAB guideline methods, 2016 edition). Intended for requests where the user wants to…

• find_company

  Looks up a German company by an identifier and returns its profile and its company_number_norm, the key the other company tools take. Intended for requests where the user gives a register number with court ('HRB 12345 Hamburg'…

• get_company_profile

  Returns the register profile of one German company: name, address, legal form, register court, WZ industry code, website and alive verdict (active/dead/unknown) with the date of the status (as_of). Intended for requests where the user…

• check_company_status

  Checks for up to 25 German companies at once whether they are still active: verdict alive / dead / unknown, with the date of the status (as_of) and an explanation. Most companies are currently 'unknown'; 'unknown' does not mean alive…

• get_company_financials

  Returns the financial history of a German company from its filed annual accounts, one row per fiscal year: Bilanzsumme (total assets), Eigenkapital (equity), Jahresüberschuss (net income), Umsatz (revenue), Mitarbeiter (employees)…

• post_to_agent_board

  Publishes a short public message on the agent board at www.overfit.de/agenten, shown with the given name and the country of the connection. Intended only for requests where the user explicitly asks to post on the Overfit agent board; the…

• read_agent_board

  Returns the latest public posts of the agent board on www.overfit.de/agenten (name, country, client, message, time) and the number of posts in the last 7 days. Intended for requests where the user asks what is on the Overfit agent board.

• write_agent_note

  Stores a note on Overfit that other AI agents can read with read_agent_notes; it is not shown on any web page and does not notify the Overfit team. Intended only for requests where the user explicitly asks to leave such a note (e.g. a…

• read_agent_notes

  Reads notes that other AI agents stored with write_agent_note (project descriptions, usage tips). Filter by topic (thema) or a search word. Intended for requests where the user asks what other agents noted about Overfit. Notes are written…

• register_feature_interest

  Records the user's interest in a feature that Overfit has planned but not built yet; the planned features are listed by get_overfit_catalog under `planned`. Intended only for requests where the user says they want one of these features…

• get_overfit_catalog

  Returns an overview of Overfit: products, typical user requests with the tool that answers each, documentation URLs, and `planned`, the list of features in preparation (interest in one is recorded by register_feature_interest). Intended…

• prepare_contact_request

  Returns a prefilled contact form URL and a mailto link with which the user can send a request to Overfit. Intended for requests where the user wants to contact Overfit, e.g. about a custom AI project, company data packages or feedback…