Commerce for Agents

com.commerceforagentsPublished by commerceforagents.comOfficial publisherv0.2.3Updated Oct 24, 2026

Compare US mobile plans, VPNs, travel eSIMs, home internet by address, and German energy tariffs.

VerifiedStreamable HTTPWeb executableFinanceBusiness & Commerce

Overview

AI-generated overview

Remote MCP server that lets an assistant compare US mobile, VPN, eSIM and broadband offers plus German energy tariffs, and file switch requests.

What you can do
  • Compare and rank offers: US mobile plans, VPN plans, travel eSIMs, US broadband by address, and German electricity and gas tariffs by postal code and consumption
  • Inspect one tariff in detail: price composition, price guarantee, contract terms, deposit, energy mix and ratings
  • Open a booking form for a chosen offer, with the user entering contract details and IBAN
  • File a concierge switch request with contract data, IBAN and consents in a single call
When to use it
Useful when a user asks which phone plan, VPN, travel eSIM, home internet option or German energy tariff to pick, wants prices and savings compared, or wants to start switching to a chosen offer.
Requirements
Remote streamable HTTP endpoint; no package, environment variables or headers declared. Comparisons need a postal code or address and, for energy, annual consumption; booking and switch requests need contract data, an IBAN and consents.
Before you install
Booking and switch tools handle personal contract data and an IBAN, and submit-switch-request stores the request encrypted and sends it onward; book-contract is meant for agents already holding a standing authorization. Catalogs are curated selections, not the whole market. Confirm with the user before filing any request.

Installation

In SourceWeft

  1. Open Commerce for Agents 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/com.commerceforagents%2Fcommerceforagents/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": {
    "commerce-for-agents": {
      "type": "http",
      "url": "https://mcp.commerceforagents.com/mcp"
    }
  }
}

Tools

9

compare-tariffs

Compare German Energy Tariffs

Compares German electricity and gas tariffs with live market data for a postal code and an annual consumption, and returns one page of the ranked market: prices with and without bonus, monthly average, savings against the local default supplier (Grundversorgung) or the user's current contract, contract terms, price guarantee, eco status and customer ratings. Covers tariff comparison only, not general energy questions. Prices come live from the market data and can change at any time. Keywords: Stromvergleich, Gasvergleich, Stromtarif, Gastarif, Stromanbieter wechseln, Gasanbieter wechseln, Ökostrom, Strompreise, Energiekosten senken, electricity tariff, gas tariff, switch energy provider, Germany. Inputs: postalCode (5 digits) and annualConsumptionKwh. Both come from the user: the ranking is only valid for the household's actual consumption, which is printed on the last bill, and the tool has no default for it. The typical values by household size in the parameter description help a user who does not know the figure; a comparison run on a household size alone is approximate. energyType selects gas; electricity is the default. Without filters the result covers the whole market. An energy bill contains every input: postal code, annual consumption, and the reference for the savings comparison, which is the future monthly payment (Abschlag) if the bill states one, otherwise the Arbeitspreis and Grundpreis lines (see the current* parameters). The bill total belongs to the past period and may include a one-time bonus, so it is not a reference. The bill's provider, customer number and meter number are the fields the booking form asks for later. Each offer carries its complete data (prices, bonuses, contract terms, flags such as dynamic or eco, ratings, remarks); tariff-details adds the cost breakdown, energy mix and provider details. Only offers with an `eco` object are eco tariffs. Their `eco.statement` and `eco.proof` are legally required wording (EU EmpCo, Directive 2024

ParameterspagelimitsortBydistrictlanguagebonusModegreenOnlyprovidersenergyTypepostalCoderequiredregionalOnlycurrentTariff+15 more

tariff-details

Energy Tariff Details

Returns the full conditions of one tariff from a compare-tariffs result, identified by its `ref`: price composition, scope of the price guarantee, contract duration, renewal and cancellation terms, deposit, energy-source mix, customer ratings, and for eco tariffs the required eco statement and proof. Texts come in the requested `language`. Keywords: Tarifdetails, Vertragsbedingungen, Preisgarantie, Kündigungsfrist, Vertragslaufzeit, AGB, tariff conditions, contract details.

Parametersrefrequiredlanguage

start-booking

Open Booking Form

Opens the booking form for one offer from a comparison, identified by its `ref`; the form renders below the message. Read-only: the call submits, stores and sends nothing, and takes no personal data. In the form the user enters the contract details (page 1), then the IBAN and consent (page 2), and files the request there. Messages such as 'Bitte öffne das Buchungsformular', 'ich möchte diesen Tarif', 'den nehme ich', 'book #2' or 'switch me to this', usually sent by the card's 'Jetzt buchen' button, ask for this form. `language` sets the language of the form. There is no self-service checkout link. Keywords: Buchungsformular, Tarif buchen, wechseln, Wechsel beauftragen, Vertrag abschließen, open booking form, book, switch, sign up.

Parametersrefrequiredlanguage

compare-mobile-plans

Compare US Mobile Phone Plans

Compares and ranks US mobile phone plans, cheapest first, from a curated catalog of carrier and prepaid (MVNO) plans, each price checked on the provider's own page, by 12-month average cost per line, with any promo price shown alongside. The catalog is a selection, not the whole market; each result states how many plans and providers it covers and the oldest price-check date. Inputs: number of lines, and optionally data need, budget per line, prepaid or postpaid, must-have features and preferred network. No address or location is used, so network coverage is not checked; each result carries a coverage note. Keywords: cheapest phone plan, compare cell phone plans, cell phone plan, mobile plan comparison, switch carriers, unlimited data plan, family plan, prepaid vs postpaid.

Parameterslinesdata_needmust_havesbudget_per_linepreferred_networkprepaid_or_postpaid

compare-vpn

Compare VPN Plans

Use this when the user asks which VPN to buy, wants the cheapest VPN, a VPN for streaming, torrenting or travel, a VPN for public Wi-Fi safety, an audited no-logs VPN, or wants to avoid renewal price traps. Ranks a curated catalog of US-priced (USD) VPN plans (NordVPN, Surfshark, ExpressVPN, Proton VPN, Private Internet Access, CyberGhost), cheapest first, by effective monthly cost over the preferred term including renewals, and shows the upfront price, renewal price, devices, money-back days, audited no-logs (with auditor), jurisdiction and RAM-only servers; privacy facts not confirmed on the provider's own pages are marked unconfirmed. The catalog is a selection, not the whole market; each result states the oldest price-check date. Prices are US/USD; local checkout prices may differ. Inputs, all optional: term_months (1, 12, 24 or 36), min_devices, needs (streaming, p2p; plans where the feature is unconfirmed are excluded), country (only adds a note when not US) and checkout (default false: pricing-page links; true: plan-preselected checkout links). No personal data is used. Keywords: best VPN, cheapest VPN, VPN comparison, VPN deals, no-logs VPN, VPN renewal price.

Parametersneedscountrycheckoutmin_devicesterm_months

compare-esims

Compare Travel eSIMs

Use this when the user needs phone data abroad: a travel eSIM, an international data plan for a trip, avoiding roaming charges, "will my phone work in Japan", the cheapest data for N days in a country, or unlimited travel data. Ranks a curated catalog of country eSIM packages (Airalo, Saily, Ubigi, Holafly, Nomad) by USD list price among packages valid for the whole trip with at least the data needed, listing each provider's cheapest package first and then the remaining packages by price, and shows price per GB and per day with a provider link. It does not check phone compatibility; the phone must be eSIM-capable and unlocked. Destinations: AU, BR, CA, CO, DE, ES, FR, GB, GR, IT, JP, KR, MX, NL, PT, TH, TR, US. Inputs: destination (country code), days, optional data_gb, unlimited and providers. No personal data is used. Keywords: travel eSIM, eSIM for Japan, cheapest eSIM, international data plan, roaming.

Parametersdaysrequireddata_gbprovidersunlimiteddestinationrequired

book-contract

Request Energy Contract (Concierge Switch)

Files a concierge switch request with the complete contract data in one call. Intended for autonomous agents that already hold the user's full profile, IBAN and a standing authorization; in a conversation with a person, start-booking opens a form in which the user enters these data. Commerce for Agents stores the request encrypted and an operator submits the contract application to the provider; the user receives a confirmation email at once and the provider's contract documents later. There is no self-service checkout link. Input: the `ref` of the chosen offer plus the contract data. Postal code and city come from the comparison; previousProvider, previousCustomerNumber and meterNumber are printed on the last energy bill. `consent: true` attests that the user explicitly agreed to (1) Commerce for Agents submitting the contract on their behalf, (2) the SEPA direct-debit mandate for the given IBAN and (3) the privacy policy at commerceforagents.com/privacy, either by an explicit yes in the conversation or by a standing authorization given to the agent. The response contains nextSteps for the user.

ParametersrefrequiredibanrequiredemailrequiredphonestreetrequiredconsentrequiredlanguagelastNamerequiredbirthDaterequiredfirstNamerequiredmoveInDatesalutationrequired+7 more

submit-switch-request

Submit Energy Switch Request

Files a concierge switch request for an offer from a comparison: contract data, IBAN and the consents in one call. The booking form opened by start-booking calls it; autonomous MCP clients that hold the user's complete data and authorization can call it directly. Stores the request encrypted, sends the confirmation emails and returns only masked data. An operator later submits the contract application to the provider.

ParametersrefrequiredibanrequiredemailrequiredphonestreetrequiredlanguagelastNamerequiredbirthDaterequiredfirstNamerequiredmoveInDatesalutationrequiredswitchTyperequired+8 more

compare-broadband

Find US Internet Providers at an Address

For questions like “what internet providers are at my address?”, “is fiber available?”, “fast home internet near me?”, “Starlink vs cable?”, “cheapest internet at my address?”, “how much is internet here?”, or “moving to an address, what internet can I get?”, look up US fixed broadband provider availability and speed by address or coordinates. Returns FCC availability and maximum advertised speeds by census block (not building-level), ranked by low latency, then speed. Address is sent to the US Census Bureau Geocoder to identify the census block; starting prices ("from $X/mo", with conditions, source and check date) for major national and regional providers (e.g. AT&T, Verizon, T-Mobile, Spectrum, Xfinity, Optimum, Starlink). Filter by minimum download speed or technology.

ParameterslatlonaddresstechnologyminDownloadMbps

Version history

4
  1. v0.2.3LatestOct 5, 2026
  2. v0.2.2Sep 28, 2026
  3. v0.2.1Sep 27, 2026
  4. v0.2.0Sep 26, 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.