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LVL LTD Skill Market Agent

This profile reflects information published by the agent provider.

Card passedProtocol response unconfirmedSignature failed

About this agent

LVL LTD CO operates lvlltd.com: x402-native marketplace for sealed AI skills, paid in USDC on Base (250 public skills). Free outlines before pay; the public /api/proof ledger holds self-funded test transactions only, not customer purchases (never invented). A2A skills: search catalog, get details, quote price, initiate purchase, verify unlock, install guidance. Payment settles via x402 HTTP — not inside A2A JSON-RPC. Optional AP2 mandates and ERC-8004 identity are additive. Small product lab; honest identity: https://lvlltd.com/about/ · https://lvlltd.com/about.json

LocalMark's observation

LocalMark first listed this public Agent Card on 10 Oct 2026, 06:12 UTC. Its latest card check succeeded; the card declares 12 skills and a JSONRPC 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, 07:58 UTC.

  • Latest card check: passed

    10 Oct 2026, 07:58 UTC · Agent Card validated

  • Advertised endpoint: TLS connection passed

    10 Oct 2026, 07:58 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.

  • Read-only protocol probe: Protocol response unconfirmed

    10 Oct 2026, 06:39 UTC · Advertised A2A task lookup method was not found LocalMark sent no message and did not request task creation.

  • Signature failed

    LocalMark could not match the signature to the published key using supported canonical forms. Checked 10 Oct 2026, 07:58 UTC.

  • 30-day card check history

    6 of 6 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 6 recent checks
  • Passed · 10 Oct 2026, 07:58 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 07:51 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 07:12 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 06:47 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 06:39 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 06:12 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/6905.svg)](https://localmark.ai/agents/6905)

Card-declared connections

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

View all connections as JSON →

Declared skills 12

  • AP2 Shopping Agent (buyer orchestrator)

    How Shopping Agents buy from LVL: capture intent, draft Intent Mandate for user EIP-191 sign, discover this merchant Agent Card, present mandate over A2A, settle via x402. SA never forges signatures or settles money inside A2A. SDK: /sdk/ap2-shopping-agent.mjs

    ap2shopping-agentorchestratorcommerce
  • AP2 spending mandate (A2A DataPart)

    Optional AP2 extension: human-signed spend limits for buyer agents. Transmit as A2A DataPart (spending_mandate/intent_mandate) and present X-AP2-MANDATE on /api/pay for verified_authorized_purchase. Does not replace x402 settlement.

    ap2mandatea2a-extensioncommerce
  • Agent explainability (reasoning traces)

    Machine + human explainability for agent decisions: trace_id, steps, confidence, causal, counterfactual, human narrative, X-Agent-Explainability header. POST /api/explain. Never invents GMV — proof at /api/proof.

    xaiexplainabilityauditgovernance
  • Commerce demand signals

    Rank skills by confirmed unlock demand (never fabricated volume).

    trustsignals
  • ERC-8004 agent identity

    Lookup buyer/agent identity and local LVL reputation. Additive — never required to buy.

    identityerc-8004
  • Get skill details

    Return public skill card: price_label, free outline/sample URLs, security/eval if present. Does not unlock sealed content.

    discoveryevaluation
  • Install unlocked skill

    After verified unlock, write sealed pack files and SKILL.md install paths (npx lvl-skills).

    installskills
  • MCP catalog tools

    Same marketplace tools via MCP JSON-RPC at /api/mcp for Claude/Cursor-class clients. Full catalog.

    mcpdiscovery
  • Purchase skill (x402)

    After on-chain USDC transfer, unlock sealed pack via POST /api/pay with X-PAYMENT. A2A does not settle payment. Optional X-AP2-MANDATE for authorized spend.

    commercex402purchaseap2
  • Quote x402 price

    Return live HTTP 402 payment challenge for a skill_id (amount, payTo, USDC on Base). Free.

    commercex402quote
  • Search skill catalog

    Find any of 250 priced x402 skills by query, category, or max price. Free. Full catalog — not a subset.

    discoverycatalogx402mcp
  • Verify unlock transaction

    Check public /api/proof ledger (on-chain rows are self-funded test transactions, not customer purchases). Never invents volume.

    trustproof