Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Certificate recorded, valid to 2026-12-11
Authorization not required
First tool surface recorded: 59 tools (server version 1.1.0)
https://lvlltd.com/mcp (mcp_streamable_http) — from ard_catalog
Changed the definition of "paid_api_call"
⟨13 unchanged words⟩ :"Catalog skill to bill (default agent-x402-first-buy,$0.05$0.005canaryexact / 5000 atomic)","type":"string"},"tx_hash": ⟨11 unchanged words⟩
Recently observed → Live
Live → Recently observed
Changed the definition of "get_proof"
Publicconfirmed-onlyon-chain unlockledger.ledger (rows are self-funded test transactions, not customer purchases). Never invents volume. Optional skill_id filter.
Changed the definition of "purchase_skill"
Without tx_hash:payment_required402payload.+ unsigned wallet_next_action (EIP-3009 PAYMENT-SIGNATURE template; no keys). With tx_hash or payment_signature: POST unlock viaexisting/api/pay (no payment bypass).
⟨8 unchanged words⟩ authorized spend","type":"string"},"from":{"description":"Buyer wallet 0x… — fills EIP-3009 authorization.from on unsigned next-action","type":"string"},"payment_signature":{"description":"Optional signed PAYMENT-SIGNATURE JSON after eth_signTypedData_v4","type":"string"},"skill_id":{"type":"string"},"tx_hash" ⟨6 unchanged words⟩
Added "paid_api_call" (58 tools before, 59 now)
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.
Certificate recorded, valid to 2026-12-11
Authorization not required
First tool surface recorded: 58 tools (server version 1.1.0)
Showing the latest 13 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed