Agent Vendors · Checks on the seller before an agent spends

Real, consistent, clear to leave, before the spend.

An agent is ready to pay a vendor when the vendor is who it claims to be, with its name, domain, contact path and a registration or signed contract all pointing at the same seller; the quote names what is sold, the quantity, the total, the currency, the date it lapses and every fee as its own line; the vendor's terms say what the quote says on price, delivery, refund and renewal; the price holds across the quote, the listing, the invoice and prior charges; the delivery promise and the refund path can be checked; and the lock-in is named plainly to the principal. A directory or marketplace listing shows that a listing exists, and the identity check keeps it apart from identity evidence. Agent Vendors checks each of those with eight tools: eight checks, run before the spend while walking away still costs nothing. Your agent sends the vendor's identity and evidence, the quote, the terms, the prices it can see, the delivery promise, the refund terms, the exit terms with its summary or the vendor report in the call, and each tool returns a signed report that names what is misrepresented, vague, contradicted, inconsistent, blocked or inflated, with the fix for each.

See the tools Read the contract

Tool access: 0.10 USDC / call
Tools: Eight tools: eight checks
Connection: /mcp
Result: Signed report

The eight tools.

Each tool reads one question about a vendor and answers it from the record. Every tool reads the recorded material in the call: identity evidence, quotes and their lines, terms, prices, delivery promises, refund and exit terms and vendor reports go in, and a classification comes out. The report names the evidence, line, term, price, statement or factor behind every finding, with the fix for each gap, so your agents and you see why it reads the way it does.

`wever_vendor-identity-check`

Reads: The vendor as it presents itself, with its legal and trading names, domain, contact path and registration number, and each piece of identity evidence in hand with what it shows.
The signed report states: Evidence naming another seller, showing another domain, paying another account holder or carrying another registration number, a contact on another domain, and gaps in contact, domain and registration, with directory and marketplace listings kept apart.
Price: 0.10 USDC per call
Verdicts: vendor_misrepresentedidentity_partialvendor_unverifiedvendor_verified

`wever_vendor-quote-check`

Reads: The quote in front of the agent: the item or service, quantity or scope, unit price, total, currency, validity date, its text and each priced line.
The signed report states: A quote with no item or price, fees implied by wording no line prices, a price left open by wording such as starting at, lines that do not add up to the total, and no currency, quantity or validity date.
Price: 0.10 USDC per call
Verdicts: quote_vaguequote_partialquote_missingquote_complete

`wever_vendor-terms-match-check`

Reads: The quote or order with its price, currency, delivery time, refund window, renewal and commitment, and the vendor’s terms with the same points and their text.
The signed report states: Terms that set a higher price, slower delivery, a shorter refund window, a more automatic renewal or a longer commitment than the quote, clauses that let the terms override it, and quoted points the terms leave out.
Price: 0.10 USDC per call
Verdicts: terms_contradict_quoteterms_match_partialterms_unexaminedterms_match_quote

`wever_vendor-price-consistency-check`

Reads: Every place the agent can see this vendor’s price for one item: the quote, the listing, the invoice, the order and prior charges, each with its amount, quantity and any reason the vendor gave for a difference.
The signed report states: Each price per unit with its difference from the quote in amount and percent, differences the vendor never explained, notes that average the differences away, and prices in another currency.
Price: 0.10 USDC per call
Verdicts: price_inconsistentprice_variance_notedprice_uncomparedprice_consistent

`wever_vendor-delivery-check`

Reads: The delivery promise with its timeframe or date, what it counts from, the method, what counts as delivered and the proof of delivery, and the same promise as stated in the terms, a listing or the order.
The signed report states: Contradictions where the promise is stated elsewhere, hedged timeframes such as usually, and a promise with no timeframe, starting point, method, test of delivery or proof.
Price: 0.10 USDC per call
Verdicts: delivery_contradicteddelivery_partialdelivery_unstateddelivery_terms_clear

`wever_vendor-refund-check`

Reads: The refund and cancellation terms: the window, the conditions, who decides, how and how soon the money comes back, how to cancel, any fees and when the terms were stated.
The signed report states: Refunds refused, left to the vendor’s sole discretion or paid back only as credit, and a path with no window, conditions, decider, method, timeline or cancellation step.
Price: 0.10 USDC per call
Verdicts: refund_blockedrefund_partialrefund_unstatedrefund_path_clear

`wever_vendor-lockin-check`

Reads: The exit terms: the term, automatic renewal and its notice, the cancellation path, a termination fee, data export and its formats, proprietary formats and switching costs, with the agent’s summary to its principal.
The signed report states: High lock-in the summary leaves out, an exit called free while the terms tie the buyer in, each high factor with its fix, and exit facts the terms leave unsaid.
Price: 0.10 USDC per call
Verdicts: lockin_high_unstatedlockin_partiallockin_unexaminedlockin_low_and_named

`wever_vendor-record-check`

Reads: The vendor report written for the principal: the vendor it names, its identity standing, total cost, contradictions and risks as stated, whether each links to the vendor record, and the record behind it.
The signed report states: An identity standing, cost, contradictions or risks that flatter the vendor record, parts with no record behind them, wording such as fully vetted or no risks while the record shows otherwise, and parts left out.
Price: 0.10 USDC per call
Verdicts: vendor_report_inflatedvendor_report_partialvendor_report_missingvendor_report_sound

Start with the two free tools.

On https://weverlabs.com/mcp-free, anonymous and with no wallet, two Agent Vendors tools show what a sound vendor record holds and what a well-checked vendor looks like beside a flawed one. Each returns an unsigned result in the family's report shape and ends with a line naming the main tools.

`wever_vendor-snapshot`

Reads: A vendor name, a kind of engagement such as a software service, freelance work or physical goods, and optionally the names of the materials in hand.
Returns: The orientation checklist of a sound vendor record for that kind of engagement, part by part from the seller’s identity to the principal report, with the items the kind of engagement adds, the check that reads each part and the materials named beside it.
Access: Free on /mcp-free

`wever_vendor-record-sample`

Reads: Nothing, or one sample engagement: a software seat plan, a design contractor or a laptop order.
Returns: One worked vendor record kept right beside a flawed one that pays an account held by another name, implies a tax it does not price, carries terms that raise the price, invoices more with no reason, hedges its delivery, refunds in credit and hides a long commitment, each piece annotated with why it passes or fails, scored by seven of the family checks. The checks read your own vendors.
Access: Free on /mcp-free

How agents and people use it.

Your agents

Pull the checklist with wever_vendor-snapshot when a vendor is first considered, so identity, the quote, the terms and the exit picture are on the record before any money moves.
Call the check that answers the question on https://weverlabs.com/mcp at the moment it matters: when the vendor is named, when the quote arrives, when the terms are read, when an invoice shows a price, before relying on a delivery date, before accepting the refund terms, before committing to a term and before the vendor report reaches the principal.
Act on the verdict and keep the signed report beside the vendor record, so the decision to spend carries the check behind it.

You

See who your agent is about to pay, with the legal name, domain and account all pointing at the same seller.
Spot a refund window or renewal in the terms that contradicts the quote while saying no is still free.
Read a vendor report where the identity standing, cost and risks match the record, and verify any check against Wever's published trust key whenever you need to show where a verdict came from.

A worked example

One quote, and the terms that change it.

The request

{
  "name": "wever_vendor-terms-match-check",
  "arguments": {
    "quote": {
      "id": "Q-2291",
      "price": 594,
      "currency": "USD",
      "delivery_days": 3,
      "refund_days": 30,
      "renewal": "manual",
      "term_months": 1
    },
    "terms": {
      "source": "brightline.io/terms",
      "version": "2026-09",
      "price": 594,
      "currency": "USD",
      "delivery_days": 3,
      "refund_days": 14,
      "renewal": "automatic",
      "term_months": 12,
      "text": "Orders renew automatically at the end of each term. Prices are subject to change."
    }
  }
}

What the report returns

Verdict: terms_contradict_quote.

Finding, contradicts quote	The terms contradict the quote on 3 points: the refund window (quoted 30 days, terms 14 days), the renewal (quoted manual, terms automatic) and the commitment (quoted 1 month, terms 12 months).
Finding, override clause	The terms let themselves override the quote: “prices are subject to change”.
Fix, contradicts quote	Get the vendor to amend its terms or the order to what was quoted, in writing, before paying; the terms govern once accepted.
Fix, override clause	Get a written exception that the quote governs over the terms, or treat the quoted price and terms as not binding.

The vendor’s terms contradict the quote: contradicts quote and override clause.

The quote offers 25 seats for one month at 594 USD, delivered in 3 days, with a 30 day refund window and a manual renewal. The terms match the price, the currency and the delivery time, so those points hold. They also shorten the refund window to 14 days, renew automatically and commit the buyer for 12 months, three contradictions that each cost money once the order is accepted, and they let prices change. Getting the order amended to the quoted refund window, renewal and term in writing, with the quote governing over the terms, brings the read to terms_match_quote.

Call it from your agent.

Connect to https://weverlabs.com/mcp and call any of the eight tools. Each call costs 0.10 USDC on Base. Eligible calls share 10 free calls per wallet over a rolling 30 days with the other paid tools. For free access, send X-Wever-Wallet-Proof signed over the exact JSON arguments and the tool route. The payment challenge supplies the x402 terms for a paid call.

Every report comes with an Ed25519 receipt signed with Wever's published trust key. The Agent Vendors contract lists the schemas, limits, verdicts and signing details. For one service's terms on their own and the buyer's own spending policy, Preflight; for pricing pages, fee schedules, warranties and shipping promises, DiligenceOps checks; for whether a catalog listing is accurate, Agent Oversight; for paid calls after a payment, Agent Purchases; for the buyer's authority to spend, Agent Readiness; for promises once the agent accepts, Agent Commitments; for the objective the work serves, Agent Goals.

Browse all tools