AI & Machine Learning

lvlltd.com

Search and retrieve AI skill details, list all available skills, and get live payment challenges for them.

x402 supported1 endpoint56 known toolsFirst detected August 9, 2026Last detected September 3, 2026

ENDPOINT 1

https://lvlltd.com/api/mcp

No auth detected

MCP server metadata

Name: lvlltd-skill-market
Version: 1.1.0

Capabilities

toolsresourcesprompts

Server instructions

LVL ESP skill market (Evaluate→Settle→Prove) + SCO (Sealed Consensus Oracles) + MCP + A2A + P2 rails + agent runtime. Preferred: esp_discover → esp_evaluate|esp_cycle(skill) → free outline → quote_skill → pay USDC on Base (eip155:8453) → purchase_skill|install_skill_payload(tx_hash) → verify_unlock (/api/proof only). Oracles: sco_discover → sco_eval → sco_canary → sco_consensus → sco_challenge → sco_reputation (ledger-only). Agent runtime: receipt_verify|receipt_mint, memory_remember|recall|list|forget, long_running_start|status|cancel, event_register|list|trigger. Free eval before settlement. Never invent unlock counts. Sandbox: get_sandbox. Networks/gas: get_networks (Base live only). Open-market escrow: get_escrow_meta (NOT skill payTo). Fleet: get_fleet. Multi-turn A2A: a2a_discover → a2a_message_send. CLI: npx lvl-skills add <id> --tx 0x...

Known tools 56

search_skills

Search lvlltd.com x402 skill catalog.

Inferred read-only

get_skill_details

Public skill details + outline/sample/challenge links.

Inferred read-only

get_payment_challenge

Live x402 402 challenge for a skill.

Inferred read-only

quote_price

Alias of get_payment_challenge — live x402 quote (amount, payTo, asset).

Inferred read-only

list_all_skills

Paginated full catalog listing (all public skills from catalog.json — not a subset).

Inferred read-only

purchase_skill

Without tx_hash: payment_required 402 payload.

Inferred read-only

verify_skill

Alias of verify_unlock — check public /api/proof ledger for confirmed unlocks (never invents volume).

Inferred read-only

install

Alias of install_skill_payload — after purchase write sealed files + SKILL.md paths.

Potential side effects

get_commerce_signals

Rank skills by confirmed unlock demand.

Inferred read-only

lookup_agent_identity

ERC-8004 / local identity lookup for a wallet.

Inferred read-only

quote_skill

Alias of quote_price / get_payment_challenge — live x402 quote.

Inferred read-only

verify_unlock

Check public /api/proof ledger for confirmed unlocks (never invents volume).

Inferred read-only

get_security_scan

Published security scan for a skill (real findings or clean-with-honesty).

Inferred read-only

get_eval_score

Public eval suite pass rate if suite exists.

Potential side effects

install_skill_payload

After purchase: sealed files + SKILL.md install paths.

Potential side effects

intent_search

Natural-language goal → ranked skills/stacks (semantic TF-IDF).

Inferred read-only

list_recurring_plans

List catalog live / update / bundle-renew / metered plans.

Potential side effects

check_access

Resolve skill access: one_time_unlock (perpetual) > catalog_sub > bundle_renew > meter.

Inferred read-only

subscribe_plan

Without tx_hash: 402 challenge for a plan.

Inferred read-only

a2a_discover

A2A bridge: fetch the marketplace Agent Card (/.well-known/agent-card.json).

Inferred read-only

a2a_message_send

A2A bridge: send message/send to the LVL A2A agent.

Potential side effects

a2a_tasks_get

A2A bridge: tasks/get — poll stored multi-turn task by id.

Inferred read-only

a2a_tasks_cancel

A2A bridge: tasks/cancel — cancel an in-flight multi-turn task.

Inferred read-only

a2a_bridge_info

A2A↔MCP bridge topology for LVL: when to use A2A vs MCP vs x402.

Inferred read-only

meter_budget

Get or set spend cap; or quote metered per-call x402 for a skill.

Inferred read-only

esp_discover

ESP protocol root (Evaluate → Settle → Prove).

Inferred read-only

esp_cycle

Full ESP cycle for a skill: free evaluate endpoints, atomic settle challenge, public prove stats (ledger-only quality).

Inferred read-only

esp_evaluate

ESP Evaluate phase only — free outline/sample/canary links.

Inferred read-only

sco_discover

SCO protocol root (Sealed Consensus Oracles).

Inferred read-only

sco_eval

SCO free evaluation for an oracle: outline, free samples, ledger-only reputation.

Inferred read-only

sco_canary

Parallel multi-provider canary: seal challengeable packs from independent oracle providers.

Inferred read-only

sco_consensus

Critic/consensus oracle: aggregate sealed pack cids into a higher-confidence sealed consensus pack.

Inferred read-only

sco_challenge

File or resolve an economic challenge against a sealed SCO pack.

Inferred read-only

sco_reputation

Ledger-derived oracle reputation only (accuracy, freshness, challenge_survival, selection_rate, economic_weight).

Inferred read-only

list_judges

Recursive evaluator market — judge/verifier/critic ESP skills.

Inferred read-only

post_intent

Post a root problem/intent with success_criteria and optional bounty_usd (P1).

Potential side effects

get_ready

Truthful readiness probe (/api/ready).

Inferred read-only

get_proof

Public confirmed-only unlock ledger.

Inferred read-only

get_fleet

Fleet map: skills, open-market, music, swarm, studio bridges.

Inferred read-only

get_sandbox

Sandbox/execution patterns for purchased packs.

Inferred read-only

get_networks

Multi-chain + multi-asset + gas rails.

Inferred read-only

get_escrow_meta

Open-market multi-party escrow (NOT skill payTo).

Inferred read-only

get_capability_info

Short-lived capability token discovery (P1).

Inferred read-only

get_pack_meta

Public sealed pack metadata + sealed_pack_hash (no paywall contents).

Inferred read-only

receipt_verify

Verify a lvl-decision-receipt-v1 integrity hash.

Inferred read-only

receipt_mint

Mint a DecisionReceipt for an agent-side decision (same schema as access/pay).

Potential side effects

memory_remember

Store a key/value in agent KV memory (namespace optional, TTL default 24h).

Inferred read-only

memory_recall

Recall a value from agent KV memory by key (+ optional namespace).

Inferred read-only

memory_list

List keys in a memory namespace (prefix list when KV supports it).

Inferred read-only

memory_forget

Delete a key from agent KV memory.

Potential side effects

long_running_start

Start a long-running / background task (KV queue stub).

Inferred read-only

long_running_status

Get status of a long-running task by task_id.

Inferred read-only

long_running_cancel

Cancel a long-running task by task_id.

Inferred read-only

event_register

Inferred read-only

event_list

List active event registrations for a topic.

Inferred read-only

event_trigger

Trigger an event on a topic with optional payload (records + surfaces registrations).

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.lvlltd-skill-market]
url = "https://lvlltd.com/api/mcp"
enabled = true

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: lvlltd-skill-market
Remote MCP URL: https://lvlltd.com/api/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "lvlltd-skill-market": {
      "url": "https://lvlltd.com/api/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

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

Generic MCP

Client-specific MCP configuration

{
  "name": "lvlltd-skill-market",
  "transport": "streamable-http",
  "url": "https://lvlltd.com/api/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Trust Data Available

BuiltWith Trust API v2 evidence for lvlltd.com was fetched 2026-08-23T15:03:53.382Z.

Trust status Trusted

lvlltd.com is assessed as Trusted: Domain has an established technology history spanning over a year.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.