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Name Whisper — ENS Intelligence Layer

by ai.namewhisper
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make_offer

Place an offer (bid) on a registered ENS name on NameWhisper via Seaport 1.6.

Returns an unsigned Seaport OrderComponents payload (plus EIP-712 domain/types) that the caller's wallet signs. The buyer offers WETH and receives the name on acceptance. After signing, POST { orderComponents, signature, label, orderType: 'offer', variant: 'nw' } to https://namewhisper.ai/api/orderbook/submit (authenticated) to store the offer in NameWhisper's orderbook — the owner sees it and can accept, counter, or decline.

Offers settle in WETH: the maker needs wrapped ETH and an approval for Seaport to spend it (the NameWhisper UI handles this approval automatically at signing time).

Fee structure: 1% marketplace fee baked into the order as a Seaport consideration item.

NW-native only — offers are not cross-posted to other marketplaces.

Tip: Use get_valuation first to understand fair market value before making an offer.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYesENS name to make an offer on (e.g. "coffee.eth")
currencyNoOffer currency. Seaport offers settle in WETH; ETH is treated as WETH.WETH
amountEthYesOffer amount in ETH (placed on-chain as WETH)
expiryHoursNoOffer expiry in hours (default: 72)
walletAddressYesYour wallet address (the offer maker / buyer)

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed10 schema fields changed
    • changedInput schema / properties / amountEth / description
      Previous value: -"Offer amount in ETH"New value: +"Offer amount in ETH (placed on-chain as WETH)"
    • addedInput schema / properties / amountEth / exclusiveMinimum
      Added value: +0
    • changedInput schema / properties / currency / description
      Previous value: -"Payment currency (default: WETH)"New value: +"Offer currency. Seaport offers settle in WETH; ETH is treated as WETH."
    • changedInput schema / properties / currency / enum
      Previous value: -[
-  "WETH",
-  "USDC",
-  "DAI"
-]New value: +[
+  "WETH",
+  "ETH"
+]
    • addedInput schema / properties / expiryHours / exclusiveMinimum
      Added value: +0
    • addedInput schema / properties / expiryHours / maximum
      Added value: +9007199254740991
    • changedInput schema / properties / expiryHours / type
      Previous value: -"number"New value: +"integer"
    • addedInput schema / properties / name / minLength
      Added value: +1
    • changedInput schema / properties / walletAddress / description
      Previous value: -"Your wallet address (offer maker)"New value: +"Your wallet address (the offer maker / buyer)"
    • addedInput schema / properties / walletAddress / pattern
      Added value: +"^0x[a-fA-F0-9]{40}$"
  2. First observed

TDQS

A4.6/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Beyond annotations, the description reveals behavioral traits: returns unsigned payload, requires user signing and external API submission, settles in WETH needing approval, includes 1% fee. No contradiction with annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear paragraphs, front-loads the main action, and each sentence adds value. Slightly lengthy but appropriate for the complexity, earning a 4.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite lacking output schema, the description fully explains the return value (unsigned OrderComponents), subsequent steps, prerequisites (WETH, approval), and fee structure. Complete for a complex tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 100% schema coverage, the description adds value by explaining that ETH is treated as WETH, clarifying the wallet as buyer, and providing context for currency and expiry defaults, though schema already covers basics.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool places an offer on a registered ENS name via Seaport 1.6, specifies the output (unsigned payload), and differentiates from sibling tools like accept_offer and cancel_offer by detailing the unique workflow and marketplace (NameWhisper).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides a tip to use get_valuation first, explains the workflow (sign then submit), and notes fee structure and NW-native limitation. It lacks explicit when-not-to-use statements but offers sufficient context for appropriate use.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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