x402 skill catalog on lvlltd.com — search, quote, pay with Base USDC, unlock sealed packs.
| Endpoint | https://lvlltd.com/api/mcp (streamable-http) |
|---|---|
| Registry version | 1.5.0 |
| Now | 59 tools · grade C (66) · pin ts_a6d3481ab40889c58c249b9b77c27f0d · protocol 2025-06-18 |
| First / last listed | 2026-11-12 01:16 UTC / 2026-11-12 01:16 UTC |
| Grade over time | 2026-11-12: C (66), 59 tools |
Is this your server? Own a server? ToolFit hosted watch re-checks it every 24 h ($0.25 per 30 days) or 6 h ($0.60) and sends you an HMAC-signed webhook when its tools or grade change: POST https://api.youraitools.co/toolfit/v1/watch. To opt out, see About & opt-out.
Tools: search_skills get_skill_details get_payment_challenge quote_price list_all_skills purchase_skill verify_skill install get_commerce_signals lookup_agent_identity quote_skill verify_unlock get_security_scan get_eval_score install_skill_payload intent_search list_recurring_plans check_access subscribe_plan a2a_discover a2a_message_send a2a_tasks_get a2a_tasks_cancel a2a_bridge_info meter_budget esp_discover esp_cycle esp_evaluate sco_discover sco_eval sco_canary sco_consensus sco_challenge sco_reputation list_judges post_intent get_ready get_proof get_fleet get_sandbox get_networks get_escrow_meta get_capability_info get_pack_meta paid_api_call receipt_verify receipt_mint memory_remember memory_recall memory_list memory_forget long_running_start long_running_status long_running_cancel event_register event_list event_trigger bankr_rails bankr_quote
search_skills | Search lvlltd.com x402 skill catalog. Free. Returns price + free_eval URLs. params: q, category, max_price_usd, tag, limit |
get_skill_details | Public skill details + outline/sample/challenge links. Free. params: skill_id* |
get_payment_challenge | Live x402 402 challenge for a skill. Does not unlock. Pay then purchase_skill. params: skill_id* |
quote_price | Alias of get_payment_challenge — live x402 quote (amount, payTo, asset). Free. Full catalog. params: skill_id* |
list_all_skills | Paginated full catalog listing (all public skills from catalog.json — not a subset). Free. params: offset, limit, category |
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). params: skill_id*, tx_hash, from, payment_signature, ap2_mandate |
verify_skill | Alias of verify_unlock — check public /api/proof ledger for confirmed unlocks (never invents volume). params: skill_id, tx_hash |
install | Alias of install_skill_payload — after purchase write sealed files + SKILL.md paths. Requires tx_hash. params: skill_id*, tx_hash*, agents |
get_commerce_signals | Rank skills by confirmed unlock demand. Free. params: sort, limit, skill_id |
lookup_agent_identity | ERC-8004 / local identity lookup for a wallet. Additive — not required to buy. params: address* |
quote_skill | Alias of quote_price / get_payment_challenge — live x402 quote. Free. params: skill_id* |
verify_unlock | Check public /api/proof ledger for confirmed unlocks (never invents volume). params: skill_id, tx_hash |
get_security_scan | Published security scan for a skill (real findings or clean-with-honesty). Free. params: skill_id* |
get_eval_score | Public eval suite pass rate if suite exists. Free. params: skill_id* |
install_skill_payload | After purchase: sealed files + SKILL.md install paths. Requires tx_hash (routes through /api/pay). params: skill_id*, tx_hash*, agents |
intent_search | Natural-language goal → ranked skills/stacks (semantic TF-IDF). Free. params: q*, limit |
list_recurring_plans | List catalog live / update / bundle-renew / metered plans. One-time unlocks remain separate and perpetual. Free. params: wallet |
check_access | Resolve skill access: one_time_unlock (perpetual) > catalog_sub > bundle_renew > meter. Never confuses live access with sealed ownership. params: wallet*, skill_id* |
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. params: plan_id*, wallet*, action, tx_hash |
a2a_discover | A2A bridge: fetch the marketplace Agent Card (/.well-known/agent-card.json). Free. Use before a2a_message_send. params: force |
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. params: text*, task_id, context_id, skill_id |
a2a_tasks_get | A2A bridge: tasks/get — poll stored multi-turn task by id. params: task_id*, history_length |
a2a_tasks_cancel | A2A bridge: tasks/cancel — cancel an in-flight multi-turn task. params: task_id* |
a2a_bridge_info | A2A↔MCP bridge topology for LVL: when to use A2A vs MCP vs x402. Free. params: none |
meter_budget | Get or set spend cap; or quote metered per-call x402 for a skill. Caps prevent runaway agent spend. params: wallet*, skill_id, spend_cap_usd, action |
esp_discover | ESP protocol root (Evaluate → Settle → Prove). Free. Philosophy + endpoints + canary. Prefer before settling any skill. params: none |
esp_cycle | Full ESP cycle for a skill: free evaluate endpoints, atomic settle challenge, public prove stats (ledger-only quality). Free to call. params: skill_id |
esp_evaluate | ESP Evaluate phase only — free outline/sample/canary links. Never requires payment. Settle only after this. params: skill_id* |
sco_discover | SCO protocol root (Sealed Consensus Oracles). Free. Philosophy, foundation oracles, agent sequence. Prefer before oracle settlement. params: none |
sco_eval | SCO free evaluation for an oracle: outline, free samples, ledger-only reputation. Never requires payment. params: oracle_id* |
sco_canary | Parallel multi-provider canary: seal challengeable packs from independent oracle providers. params: oracle_id*, providers, query |
sco_consensus | Critic/consensus oracle: aggregate sealed pack cids into a higher-confidence sealed consensus pack. params: input_cids* |
sco_challenge | File or resolve an economic challenge against a sealed SCO pack. Reputation updates from ledger only. params: action, target_cid, counter_proof, stake_usd, challenger_id, challenge_cid, outcome, reason |
sco_reputation | Ledger-derived oracle reputation only (accuracy, freshness, challenge_survival, selection_rate, economic_weight). Null when no evidence. params: oracle_id* |
list_judges | Recursive evaluator market — judge/verifier/critic ESP skills. Quality from public proof ledger only. Free. params: skill_id, limit |
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. params: title, description, success_criteria*, bounty_usd, tags, poster |
get_ready | Truthful readiness probe (/api/ready). ready:true only when payment+catalog rails work. params: none |
get_proof | Public on-chain unlock ledger (rows are self-funded test transactions, not customer purchases). Never invents volume. Optional skill_id filter. params: skill_id, limit |
get_fleet | Fleet map: skills, open-market, music, swarm, studio bridges. Free. params: none |
get_sandbox | Sandbox/execution patterns for purchased packs. Optional skill_id for per-skill resources + packaging maturity. params: skill_id |
get_networks | Multi-chain + multi-asset + gas rails. Base live; other chains planned. Sponsored canary honesty. params: none |
get_escrow_meta | Open-market multi-party escrow (NOT skill payTo). LVLEscrow held-fund contract metadata. params: none |
get_capability_info | Short-lived capability token discovery (P1). Not an API key for purchase. params: none |
get_pack_meta | Public sealed pack metadata + sealed_pack_hash (no paywall contents). params: skill_id* |
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. params: skill_id, tx_hash, op |
receipt_verify | Verify a lvl-decision-receipt-v1 integrity hash. Returns match + recomputed hash. Free. params: receipt* |
receipt_mint | Mint a DecisionReceipt for an agent-side decision (same schema as access/pay). Free. params: decision_point*, verdict*, reason_code*, reason_message, actor_id, inputs, policy_version |
memory_remember | Store a key/value in agent KV memory (namespace optional, TTL default 24h). params: key*, value, namespace, ttl_sec |
memory_recall | Recall a value from agent KV memory by key (+ optional namespace). params: key*, namespace |
memory_list | List keys in a memory namespace (prefix list when KV supports it). params: namespace, limit |
memory_forget | Delete a key from agent KV memory. params: key*, namespace |
long_running_start | Start a long-running / background task (KV queue stub). Returns task_id for status/cancel. params: goal*, skill_id, actor, ttl_sec |
long_running_status | Get status of a long-running task by task_id. params: task_id* |
long_running_cancel | Cancel a long-running task by task_id. params: task_id* |
event_register | Register interest in a topic (stub event bus). Returns event_id. params: topic*, handler_hint, ttl_sec |
event_list | List active event registrations for a topic. params: topic, limit |
event_trigger | Trigger an event on a topic with optional payload (records + surfaces registrations). params: topic*, payload |
bankr_rails | Bankr x402 Cloud rail for LVL skills (catalog/unlock/canary URLs + payTo). Does not unlock. Canonical settlement remains /api/pay. Free. params: none |
bankr_quote | Bankr unlock URL + LVL 402 challenge URL for a skill_id. Does not pay or unlock. Free. params: skill_id* |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.