diff --git a/harnesses/perp-fees/cmd/script/metrics.go b/harnesses/perp-fees/cmd/script/metrics.go
index b1127391..6bcb6565 100644
--- a/harnesses/perp-fees/cmd/script/metrics.go
+++ b/harnesses/perp-fees/cmd/script/metrics.go
@@ -121,8 +121,24 @@ func init() {
 
 func recordSample(s PerpSample) {
 	if s.Err != "" {
-		fetchErrorsCtr.WithLabelValues(s.Venue, s.Asset, classifyErr(s.Err)).Inc()
+		errType := classifyErr(s.Err)
+		fetchErrorsCtr.WithLabelValues(s.Venue, s.Asset, errType).Inc()
 		healthGauge.WithLabelValues(s.Venue, s.Asset).Set(0)
+		// Permanent failures (asset delisted, unsupported venue) must delete
+		// the gauge series so stale values don't persist as ghost metrics.
+		// Transient failures (timeout, rate limit, server error) intentionally
+		// keep the last good value so a brief outage doesn't blank the board.
+		if errType == "not_found" {
+			allInGauge.DeleteLabelValues(s.Venue, s.Asset)
+			spreadGauge.DeleteLabelValues(s.Venue, s.Asset)
+			takerFeeGauge.DeleteLabelValues(s.Venue, s.Asset)
+			fundingGauge.DeleteLabelValues(s.Venue, s.Asset)
+			fetchLatencyGauge.DeleteLabelValues(s.Venue, s.Asset)
+			lastRefreshGauge.DeleteLabelValues(s.Venue, s.Asset)
+			for _, n := range tierNotionals {
+				allInTierGauge.DeleteLabelValues(s.Venue, s.Asset, notionalLabel(n))
+			}
+		}
 		return
 	}
 	takerFeeGauge.WithLabelValues(s.Venue, s.Asset).Set(s.TakerFeeBps)
@@ -149,6 +165,8 @@ func recordSample(s PerpSample) {
 
 func classifyErr(msg string) string {
 	switch {
+	case contains(msg, "asset_not_found") || contains(msg, "unsupported_venue"):
+		return "not_found"
 	case contains(msg, "timeout"):
 		return "timeout"
 	case contains(msg, "401") || contains(msg, "403"):
diff --git a/src/data/provider-registry.ts b/src/data/provider-registry.ts
index c9ca3c02..ec533927 100644
--- a/src/data/provider-registry.ts
+++ b/src/data/provider-registry.ts
@@ -373,6 +373,34 @@ export const PROVIDER_REGISTRY: Record<string, ProviderRegistryEntry> = {
       "Cross-chain intent protocol using the DLN solver network. Liquidity is filled by solvers on the destination chain, no wrapped assets or LP pools.",
     twitter: "@deBridgeFinance",
   },
+  across: {
+    url: "https://across.to",
+    description:
+      "Optimistic cross-chain bridge by Risk Labs. Intents are filled by relayers who front liquidity on the destination, repaid from a canonical hub pool. Settlement is typically sub-30 seconds on liquid corridors.",
+    twitter: "@AcrossProtocol",
+    docs: "https://docs.across.to",
+  },
+  mayan: {
+    url: "https://mayan.finance",
+    description:
+      "Cross-chain swap protocol using Wormhole messaging. Routes trades via a solver network (Mayan Swift) with optimistic confirmation, covering EVM and Solana corridors.",
+    twitter: "@MayanFinance",
+    docs: "https://docs.mayan.finance",
+  },
+  squid: {
+    url: "https://squidrouter.com",
+    description:
+      "Cross-chain swap and liquidity routing built on Axelar. The Squid Router API sources routes across EVM chains via Axelar GMP, covering swaps and bridges in a single call.",
+    twitter: "@squidrouter",
+    docs: "https://docs.squidrouter.com",
+  },
+  socket: {
+    url: "https://socket.tech",
+    description:
+      "Cross-chain interoperability protocol and bridge aggregator. The Socket API routes bridging and swap transactions across major EVM chains via underlying bridges including Across, Stargate, and CCTP.",
+    twitter: "@SocketDotTech",
+    docs: "https://docs.socket.tech",
+  },
   "near-intents": {
     url: "https://near-intents.org",
     description:
diff --git a/src/lib/logo-manifest.ts b/src/lib/logo-manifest.ts
index ef38b348..30e2d749 100644
--- a/src/lib/logo-manifest.ts
+++ b/src/lib/logo-manifest.ts
@@ -108,6 +108,7 @@ const RAW: Record<string, string> = {
   lighter: "/logos/lighter.svg",
   debridge: "/logos/debridge.svg",
   "near-intents": "/logos/near-intents.svg",
+  mayan: "/logos/mayan.svg",
   squid: "/logos/squid.svg",
   socket: "/logos/socket.webp",
   wormhole: "/logos/wormhole.png",