Trending/new/changed MCP servers: a liveness-probed freshness index + x402-paid change-data API
Scored across 10 tools
Every tool has a clearly distinct purpose: free vs. paid, list vs. snapshot, search vs. verify, and the standalone risk assessment. Even the similar verification tools are differentiated by 'preview' versus 'full report', leaving no ambiguity.
Most tools follow a consistent verb_noun pattern (get_, list_, search_, verify_, assess_). The only outlier is 'feeds_status', which uses a noun phrase instead of a verb-led form, creating a minor inconsistency.
With 10 tools, the server is well-scoped for its dual purpose of MCP registry access and x402 services. Each tool adds distinct value, and the count comfortably fits the typical 3-15 range without feeling bloated or thin.
The tool set covers the full read-only lifecycle for both feeds: free search, paid full snapshots, delta changes, trending highlights, per-server verification (preview and full), live service listing, and aggregate status. No obvious dead ends for the stated purpose.
Verify-before-you-pay: a read-only fraud/impersonation RISK assessment (0-100, higher = riskier) for an ERC-8004 agent on Base, cross-referencing its DECLARED identity (agent-card) against on-chain control (ownerOf). Flags owner-mismatch, registration-inconsistency, off-chain/unproven cards, dead endpoints, and orphaned identities. Free; from a maintained sample of the first agentIds. Look up by tokenId (agentId) OR by the counterparty wallet/payTo you're about to pay (address — 0x… or eip155:8453:0x…). Omit both to list the sample (riskiest first).
Inputs: address, agentId.
Freshness/health of both feeds (snapshot ages, counts, available change-baseline dates). Free.
Inputs: no named parameters.
PAID (x402): returns x402 payment instructions for the FULL deduped, quality-scored MCP registry snapshot. Use search_mcp_registry (free) for targeted lookups.
Inputs: no named parameters.
PAID (x402): returns x402 payment instructions for the registry delta (added/removed/changed servers) since a daily baseline — the cheap habit endpoint for repeat callers.
Inputs: since.
Top 10 MCP servers by quality score + trending (new arrivals / score risers) + snapshot freshness. Free.
Inputs: no named parameters.
PAID (x402): returns x402 payment instructions for the FULL liveness-probed x402 services feed.
Inputs: no named parameters.
List the x402 services discovery catalog's active edge, liveness-probed: know a service is up and correctly demanding payment before you pay it. Free; up to 25. For the full liveness-probed feed use get_x402_services_snapshot (paid, x402).
Inputs: limit, payable_only.
Search the continuously-maintained MCP server registry (deduped, quality-scored, refreshed every 30 min) by name/title/description. Free; returns up to 25 matching servers with score, status, remotes and packages. For the FULL corpus (~1500 servers) use get_mcp_registry_snapshot (paid, x402).
Inputs: limit, query.
Free preview-grade trust report for one registry MCP server: a transparent 0-100 grade from cached signals (registry status, endpoint presence, freshness). The full report with a LIVE endpoint reachability probe + component breakdown is paid (verify_mcp_server_report, x402).
Inputs: server (required).
PAID (x402): returns x402 payment instructions for the FULL verification report (LIVE endpoint probe + component breakdown) for one registry MCP server.
Inputs: server (required).
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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