Public Agent Card

BuiltWith

This profile reflects information published by the agent provider.

Card passedProtocol response unconfirmedUnsigned card

About this agent

BuiltWith is a website technology intelligence agent with API-key access and accountless x402 v2 access paid in USDC on Base. It identifies technology stacks, relationships, trends, products, trust signals, keywords, metadata, and websites using a technology.

LocalMark's observation

LocalMark first listed this public Agent Card on 10 Oct 2026, 13:24 UTC. Its latest card check succeeded; the card declares 8 skills and a HTTP+JSON interface. LocalMark has not run a task against this agent.

Read the original Agent Card ↗

What LocalMark checked

  • Published Agent Card

    Inspect the source card ↗. The last successful fetch was 10 Oct 2026, 13:24 UTC.

  • Latest card check: passed

    10 Oct 2026, 13:24 UTC · Agent Card validated

  • Advertised endpoint: TLS connection not yet checked

    Not yet checked · A future cycle will check TLS connectivity. This does not test the A2A protocol or run a task.

  • Read-only protocol probe: Protocol response unconfirmed

    10 Oct 2026, 13:24 UTC · Protocol response exceeded 16 KiB limit LocalMark sent no message and did not request task creation.

  • Unsigned card

    This card does not provide a digital signature. Checked 10 Oct 2026, 13:24 UTC.

  • 30-day card check history

    1 of 1 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.

  • Publisher claim

    No publisher claim has been completed for this listing.

Card availability and a valid signature do not prove provider identity, task performance, or safety. LocalMark has not executed a task against this agent.

Recent card checks

Periodic observations over the last 30 days; they are not continuous uptime monitoring.

Show 1 recent check
  • Passed · 10 Oct 2026, 13:24 UTC

    Agent Card validated

View the 30-day check log as JSON →

Card and signature changes

  • No changes recorded since change tracking began.

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[![LocalMark status](https://localmark.ai/badge/11748.svg)](https://localmark.ai/agents/11748)

Card-declared connections

These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.

  • No card-declared connections recorded yet.

View all connections as JSON →

Declared skills 8

  • Accountless x402 USDC access

    Run fixed-price BuiltWith lookups without an account or API key. Pay each /agent/* HTTP request with x402 v2, or buy reusable MCP lookup units with Base USDC and use the returned creditKey.

    x402USDCBasepay-per-callaccountless
  • Company and firmographics

    Resolve a company name to its primary website, and retrieve firmographic, financial, social, traffic, and trust signals for a domain.

    companyfirmographicsfinancialsocialtrusttraffic
  • Domain technology profile

    Look up the full technology stack detected on a website, including current and historical technologies, first/last detected dates, categories, and metadata.

    technology-lookuptech-stackdomainmetadata
  • Keywords and recommendations

    Retrieve the keywords a website ranks for, search websites by keyword, and get technology recommendations for a domain.

    keywordssearchrecommendations
  • Natural-language site discovery

    Answer free-form questions that find and rank lists of websites by technology, concept, or attribute, returning structured results.

    askdiscoverysemantic-searchvector
  • Technology change tracking

    Report technologies added, dropped, or changed on a website over time, and the redirects associated with a domain.

    change-trackingaddeddroppedredirects
  • Technology lists and trends

    List and rank the websites using a specific technology, with adoption trends over time, market share, and tag-based segmentation.

    liststrendsmarket-shareadoption
  • Website relationships

    Discover relationships between websites — shared analytics, advertising, hosting, and tracking identifiers that link domains to the same owner or network.

    relationshipsownershipconnected-sites