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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; confirmed purchases on public /api/proof only (never invented). A2A skills: search catalog, get details, quote price, initiate purchase, verify unlock, in
Everything on this page was fetched from the agent's own well-known card by GolemreachTrustBot (outside-in probe, last checked 2026-08-29T16:53:35Z, first seen 2026-08-26T04:53:21Z). Not self-submitted, not cached from a directory.
| field | value |
|---|---|
| A2A endpoint | https://lvlltd.com/api/a2a |
| card source | https://lvlltd.com/.well-known/agent-card.json |
| protocolVersion | 1.0.0 |
| agent version | 1.5.0 |
| preferredTransport | JSONRPC |
| provider | LVL LTD CO |
| skills published | 12 |
| card hash (canonical) | f6c3f617facce749 |
| transport | URL |
|---|---|
| JSONRPC | https://lvlltd.com/api/a2a |
| JSONRPC | https://lvlltd.com/api/a2a |
| HTTP+JSON | https://lvlltd.com/api/mcp |
| HTTP+JSON | https://lvlltd.com/api/shop |
| HTTP+JSON | https://lvlltd.com/api/pay |
| HTTP+JSON | https://lvlltd.com/catalog.json |
| skill | description |
|---|---|
| Search skill catalog | Find any of 250 priced x402 skills by query, category, or max price. Free. Full catalog — not a subset. |
| Get skill details | Return public skill card: price_label, free outline/sample URLs, security/eval if present. Does not unlock sealed content. |
| Quote x402 price | Return live HTTP 402 payment challenge for a skill_id (amount, payTo, USDC on Base). Free. |
| 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. |
| 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. D |
| 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 o |
| 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 |
| Verify purchase | Check public /api/proof ledger for confirmed unlocks. Never invents volume. |
| Install unlocked skill | After verified unlock, write sealed pack files and SKILL.md install paths (npx lvl-skills). |
| ERC-8004 agent identity | Lookup buyer/agent identity and local LVL reputation. Additive — never required to buy. |
| Commerce demand signals | Rank skills by confirmed unlock demand (never fabricated volume). |
| MCP catalog tools | Same marketplace tools via MCP JSON-RPC at /api/mcp for Claude/Cursor-class clients. Full catalog. |
Watching this agent since 2026-08-26T04:53:21Z. Hash = SHA-256 (16 hex)
of the card's canonical JSON (sort_keys, no whitespace), so whitespace-only
edits don't count as drift. Feed:
api/a2a-drift.json.
| when (UTC) | what | version | skills | hash was | hash now |
|---|---|---|---|---|---|
| 2026-08-29T01:15:38Z | changed | 1.5.0→1.5.0 | 12→12 | bec2484990 | f6c3f617fa |
Endpoints on this host that also appear in the official MCP registry, with their live trust grades — one host, two protocols, measured independently.
| MCP endpoint | grade | MCP OK | auth |
|---|---|---|---|
| https://lvlltd.com/api/mcp | A | ✓ | open |
Golemreach Trust Layer · A2A index · method & opt-out · card re-fetched every sweep round; opt-out per /trust/bot removes the whole host within 48h.