# com.lvlltd/skill-market

> x402 skill catalog on lvlltd.com — search, quote, pay with Base USDC, unlock sealed packs.

- name: com.lvlltd/skill-market
- version: 1.5.0
- connection class: R0 (autonomous)
- trust: 97/100
- quality: 68/100 (needs work)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.lvlltd%2Fskill-market
- tools: https://api.protogrid.dev/v1/servers/com.lvlltd%2Fskill-market/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "skill-market": {
      "type": "http",
      "url": "https://lvlltd.com/api/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 99
- freshness: 85
- provenance: 100
- drivers: +repository +namespace-matches-repo +dns-namespace +website +reachable +uptime-98% ~updated-73d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 68/100 (needs work)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_payment_challenge (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); verify_skill (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); intent_search (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 3,519 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 50 (weight 15)

- pass `stability.changes`: 2 tool changes in 30 days
- fail `stability.rug_pull`: 1 tools kept their name but changed most of their description in 30 days; review before trusting them

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 59, about 3,519 tokens to load them all
- tool set hash: 082e0b1427bb00f6955c3ed522bab637
- tools last changed: 2026-10-15T05:21:45.219Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.lvlltd/skill-market.svg)](https://protogrid.dev/servers/com.lvlltd/skill-market)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-15 `paid_api_call` changed (inputSchema)
- 2026-09-30 `get_proof` changed (description) **meaning changed**
  - before: Public confirmed-only unlock ledger. Never invents volume. Optional skill_id filter.
  - after: Public on-chain unlock ledger (rows are self-funded test transactions, not customer purchases). Never invents volume. Optional skill_id filter.

Full history: https://api.protogrid.dev/v1/servers/com.lvlltd%2Fskill-market/changes

## Remotes

- https://lvlltd.com/api/mcp (streamable-http, auth none, reachable true, uptime30d 0.9830508)

## Packages

_none_

## Tools (59)

- `a2a_bridge_info`: A2A↔MCP bridge topology for LVL: when to use A2A vs MCP vs x402. Free.
- `a2a_discover`: A2A bridge: fetch the marketplace Agent Card (/.well-known/agent-card.json). Free. Use before a2a_message_send.
- `a2a_message_send`: A2A bridge: send message/send to the LVL A2A agent. Supports multi-turn via task_id+context_id. Does not settle payment — use purchase_skill / x402 for money.
- `a2a_tasks_cancel`: A2A bridge: tasks/cancel — cancel an in-flight multi-turn task.
- `a2a_tasks_get`: A2A bridge: tasks/get — poll stored multi-turn task by id.
- `bankr_quote`: Bankr unlock URL + LVL 402 challenge URL for a skill_id. Does not pay or unlock. Free.
- `bankr_rails`: Bankr x402 Cloud rail for LVL skills (catalog/unlock/canary URLs + payTo). Does not unlock. Canonical settlement remains /api/pay. Free.
- `check_access`: Resolve skill access: one_time_unlock (perpetual) > catalog_sub > bundle_renew > meter. Never confuses live access with sealed ownership.
- `esp_cycle`: Full ESP cycle for a skill: free evaluate endpoints, atomic settle challenge, public prove stats (ledger-only quality). Free to call.
- `esp_discover`: ESP protocol root (Evaluate → Settle → Prove). Free. Philosophy + endpoints + canary. Prefer before settling any skill.
- `esp_evaluate`: ESP Evaluate phase only — free outline/sample/canary links. Never requires payment. Settle only after this.
- `event_list`: List active event registrations for a topic.
- `event_register`: Register interest in a topic (stub event bus). Returns event_id.
- `event_trigger`: Trigger an event on a topic with optional payload (records + surfaces registrations).
- `get_capability_info`: Short-lived capability token discovery (P1). Not an API key for purchase.
- `get_commerce_signals`: Rank skills by confirmed unlock demand. Free.
- `get_escrow_meta`: Open-market multi-party escrow (NOT skill payTo). LVLEscrow held-fund contract metadata.
- `get_eval_score`: Public eval suite pass rate if suite exists. Free.
- `get_fleet`: Fleet map: skills, open-market, music, swarm, studio bridges. Free.
- `get_networks`: Multi-chain + multi-asset + gas rails. Base live; other chains planned. Sponsored canary honesty.
- `get_pack_meta`: Public sealed pack metadata + sealed_pack_hash (no paywall contents).
- `get_payment_challenge`: Live x402 402 challenge for a skill. Does not unlock. Pay then purchase_skill.
- `get_proof`: Public on-chain unlock ledger (rows are self-funded test transactions, not customer purchases). Never invents volume. Optional skill_id filter.
- `get_ready`: Truthful readiness probe (/api/ready). ready:true only when payment+catalog rails work.
- `get_sandbox`: Sandbox/execution patterns for purchased packs. Optional skill_id for per-skill resources + packaging maturity.
- `get_security_scan`: Published security scan for a skill (real findings or clean-with-honesty). Free.
- `get_skill_details`: Public skill details + outline/sample/challenge links. Free.
- `install`: Alias of install_skill_payload — after purchase write sealed files + SKILL.md paths. Requires tx_hash.
- `install_skill_payload`: After purchase: sealed files + SKILL.md install paths. Requires tx_hash (routes through /api/pay).
- `intent_search`: Natural-language goal → ranked skills/stacks (semantic TF-IDF). Free.
- `list_all_skills`: Paginated full catalog listing (all public skills from catalog.json — not a subset). Free.
- `list_judges`: Recursive evaluator market — judge/verifier/critic ESP skills. Quality from public proof ledger only. Free.
- `list_recurring_plans`: List catalog live / update / bundle-renew / metered plans. One-time unlocks remain separate and perpetual. Free.
- `long_running_cancel`: Cancel a long-running task by task_id.
- `long_running_start`: Start a long-running / background task (KV queue stub). Returns task_id for status/cancel.
- `long_running_status`: Get status of a long-running task by task_id.
- `lookup_agent_identity`: ERC-8004 / local identity lookup for a wallet. Additive — not required to buy.
- `memory_forget`: Delete a key from agent KV memory.
- `memory_list`: List keys in a memory namespace (prefix list when KV supports it).
- `memory_recall`: Recall a value from agent KV memory by key (+ optional namespace).
- `memory_remember`: Store a key/value in agent KV memory (namespace optional, TTL default 24h).
- `meter_budget`: Get or set spend cap; or quote metered per-call x402 for a skill. Caps prevent runaway agent spend.
- `paid_api_call`: Metered x402 API call (nothing over $5). Without tx_hash: 402 quote. With tx_hash: records the paid call. Discovery tools stay free. New billable APIs must go through this tool.
- `post_intent`: Post a root problem/intent with success_criteria and optional bounty_usd (P1). Free to post. Settlement still x402; success only via /api/proof.
- `purchase_skill`: Without tx_hash: 402 + unsigned wallet_next_action (EIP-3009 PAYMENT-SIGNATURE template; no keys). With tx_hash or payment_signature: POST unlock via /api/pay (no payment bypass).
- `quote_price`: Alias of get_payment_challenge — live x402 quote (amount, payTo, asset). Free. Full catalog.
- `quote_skill`: Alias of quote_price / get_payment_challenge — live x402 quote. Free.
- `receipt_mint`: Mint a DecisionReceipt for an agent-side decision (same schema as access/pay). Free.
- `receipt_verify`: Verify a lvl-decision-receipt-v1 integrity hash. Returns match + recomputed hash. Free.
- `sco_canary`: Parallel multi-provider canary: seal challengeable packs from independent oracle providers.
- `sco_challenge`: File or resolve an economic challenge against a sealed SCO pack. Reputation updates from ledger only.
- `sco_consensus`: Critic/consensus oracle: aggregate sealed pack cids into a higher-confidence sealed consensus pack.
- `sco_discover`: SCO protocol root (Sealed Consensus Oracles). Free. Philosophy, foundation oracles, agent sequence. Prefer before oracle settlement.
- `sco_eval`: SCO free evaluation for an oracle: outline, free samples, ledger-only reputation. Never requires payment.
- `sco_reputation`: Ledger-derived oracle reputation only (accuracy, freshness, challenge_survival, selection_rate, economic_weight). Null when no evidence.
- `search_skills`: Search lvlltd.com x402 skill catalog. Free. Returns price + free_eval URLs.
- `subscribe_plan`: Without tx_hash: 402 challenge for a plan. With tx_hash: start/renew. Cancel: action=cancel (one step). Never revokes one-time unlocks.
- `verify_skill`: Alias of verify_unlock — check public /api/proof ledger for confirmed unlocks (never invents volume).
- `verify_unlock`: Check public /api/proof ledger for confirmed unlocks (never invents volume).