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Skill Market MCP Server

by lvlltd Your server? Claim it
answering

Skill Market is answering right now. Last checked 11 min ago. It exposes 59 tools.

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

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 41 days of history
41 days agonow
100.0%
Uptime 24h
91 of 91 checks
59
Tools
read from the server
186 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 44

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 11 August 2026. No other catalogue keeps this.

16 Sep a tool description was rewritten purchase_skill
16 Sep a tool changed the parameters it asks for purchase_skill
13 Sep a tool appeared paid_api_call
5 Sep 2 tools appeared bankr_quote, bankr_rails
11 Aug 12 tools appeared24 times that day event_list, event_register, event_trigger and 9 more
11 Aug 12 tools disappeared event_list, event_register, event_trigger and 9 more
11 Aug a tool changed version3 times that day
and 14 more, back to 11 August 2026

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add skill-market --transport http https://lvlltd.com/api/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "skill-market": {
      "url": "https://lvlltd.com/api/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.skill-market]
url = "https://lvlltd.com/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "skill-market": {
      "url": "https://lvlltd.com/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "skill-market": {
      "url": "https://lvlltd.com/api/mcp"
    }
  }
}

Available tools 59

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

sco
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.
a2a
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.
memory
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).
esp
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
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).
long
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.
bankr
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.
install
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).
quote
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
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.
verify
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).
access
check_access
Resolve skill access: one_time_unlock (perpetual) > catalog_sub > bundle_renew > meter. Never confuses live access with sealed ownership.
all
list_all_skills
Paginated full catalog listing (all public skills from catalog.json — not a subset). Free.
capability
get_capability_info
Short-lived capability token discovery (P1). Not an API key for purchase.
commerce
get_commerce_signals
Rank skills by confirmed unlock demand. Free.
escrow
get_escrow_meta
Open-market multi-party escrow (NOT skill payTo). LVLEscrow held-fund contract metadata.
eval
get_eval_score
Public eval suite pass rate if suite exists. Free.
fleet
get_fleet
Fleet map: skills, open-market, music, swarm, studio bridges. Free.
intent
intent_search
Natural-language goal → ranked skills/stacks (semantic TF-IDF). Free.
judges
list_judges
Recursive evaluator market — judge/verifier/critic ESP skills. Quality from public proof ledger only. Free.
lookup
lookup_agent_identity
ERC-8004 / local identity lookup for a wallet. Additive — not required to buy.
meter
meter_budget
Get or set spend cap; or quote metered per-call x402 for a skill. Caps prevent runaway agent spend.
networks
get_networks
Multi-chain + multi-asset + gas rails. Base live; other chains planned. Sponsored canary honesty.
pack
get_pack_meta
Public sealed pack metadata + sealed_pack_hash (no paywall contents).
paid
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.
payment
get_payment_challenge
Live x402 402 challenge for a skill. Does not unlock. Pay then purchase_skill.
post
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.
proof
get_proof
Public confirmed-only unlock ledger. Never invents volume. Optional skill_id filter.
purchase
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).
ready
get_ready
Truthful readiness probe (/api/ready). ready:true only when payment+catalog rails work.
recurring
list_recurring_plans
List catalog live / update / bundle-renew / metered plans. One-time unlocks remain separate and perpetual. Free.
sandbox
get_sandbox
Sandbox/execution patterns for purchased packs. Optional skill_id for per-skill resources + packaging maturity.
security
get_security_scan
Published security scan for a skill (real findings or clean-with-honesty). Free.
skill
get_skill_details
Public skill details + outline/sample/challenge links. Free.
skills
search_skills
Search lvlltd.com x402 skill catalog. Free. Returns price + free_eval URLs.
subscribe
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.

Endpoints

URLTransportStateLatencyChecked
https://lvlltd.com/api/mcp streamable-http answering 142 ms 11 min ago

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Skill Market — questions

Answers built from our own checks of this server.

What can Skill Market do?
It exposes 59 tools, read directly from the server on our last check. Among them: a2a_bridge_info, a2a_discover, a2a_message_send, a2a_tasks_cancel, a2a_tasks_get, bankr_quote and 53 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
What is Skill Market mostly used for?
Its tools cluster around sco, a2a and memory. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Skill Market working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 186 ms. The bar chart above shows every period we have measured.
Is Skill Market still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
How do I connect Skill Market?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Skill Market need an API key?
No. Skill Market completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 59 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Skill Market?
It answers our handshake in 186 ms on average, which is faster than 69% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.