dev → main: hydration-rpc resumed, trading-app-execution deleted

benchmarks/hydration-rpc.yml

@@ -4,44 +4,49 @@ slug: hydration-rpc
 number: "186"
 title: Fastest free Hydration RPC, live no-key endpoint latency
 seo_title: "Fastest free Hydration RPC 2026"
-seo_description: "Hydration RPC bench temporarily suspended: all 5 providers are DNS dead or returning HTTP 400. Will resume when endpoints recover."
+seo_description: "{{best_name}} leads free Hydration RPC at {{best_p50}} (chain_getHeader Substrate p50, 24h). 2 providers measured every 60s from 3 regions."
 subtitle: HTTP round-trip latency for chain_getHeader against every free, no-key public Hydration Polkadot parachain endpoint, audited every 60 seconds from 3 regions.
 
 category: RPCs
-status: draft
+status: live
 metric: RPC latency
 unit: ms
 higher_is_better: false
 
 seo_intro: |
-  Hydration (formerly HydraDX) is an Omnipool-based DEX parachain on Polkadot enabling single-sided liquidity provision across assets. HDX is the native token. This bench is currently suspended: all 5 previously measured providers (Hydration official, Dwellir, Helikon, Dotters Network, Parachains Network) are either DNS dead or returning HTTP 400. The bench will resume when endpoints recover.
+  Hydration (formerly HydraDX) is an Omnipool-based DEX parachain on Polkadot enabling single-sided liquidity provision across assets. HDX is the native token. It produces one block every 6 seconds via the Polkadot relay and exposes a Substrate JSON-RPC interface. Public keyless endpoints are available from Hydration official and Dwellir. Every provider was live-verified with consecutive chain_getHeader probes at launch.
 
 abstract: |
   Per-chain member of the RPC latency cluster, extended to Hydration.
-  This bench is currently suspended: all 5 previously measured providers
-  are DNS dead or returning HTTP 400. Data will resume when at least
-  one keyless Hydration RPC endpoint becomes reachable again.
+  We measure the round-trip latency of a single Substrate JSON-RPC call
+  (chain_getHeader) against every available public Hydration parachain
+  node that sustains continuous probing: 2 providers at launch, every
+  60 seconds, from us-east, eu-west and Singapore. The harness classifies
+  every response (ok / http_err / jsonrpc_err / stale / timeout) with a
+  Polkadot-scaled staleness gap (40 blocks, around 4 min at 6 s/block).
+  The cross-chain view lives on the parent rpc-capabilities benchmark;
+  this page is the Hydration-scoped answer with per-region breakdowns.
 
 methodology:
-  - "Cadence: every 60 seconds per provider, from each of 3 probe regions (us-east Virginia, eu-west Amsterdam, sgp Singapore). Headline p50/p90/p99 aggregate across all 3 regions via Prometheus `avg(quantile_over_time(...))`; per-region breakdowns are first-class on this page via the region tabs."
-  - "Payload: `{\"jsonrpc\":\"2.0\",\"id\":<rotating>,\"method\":\"chain_getHeader\",\"params\":[]}`. Plain HTTP POST, identical for every endpoint, no API key in any request."
-  - "Latency: client-side round-trip delta in milliseconds, exposed as both a gauge and a histogram (buckets 50 ms to 10 s), so percentiles are computed via Prometheus `quantile_over_time` over the last 24 hours."
-  - "Call-result classification: `ok` (HTTP 200 + parsable hex block number), `http_err`, `jsonrpc_err`, `stale` (more than 40 blocks behind the cross-provider tip), `timeout`."
-  - "This page is part of the per-chain RPC cluster derived from the cross-chain [rpc-capabilities](https://openchainbench.com/benchmarks/rpc-capabilities) benchmark; the identical harness, cadence and exclusion rules apply on every chain."
-  - "Chain scope: every query on this page is pinned to `chain=\"hydration\"`. Bench currently suspended: all 5 previously measured providers are DNS dead or returning HTTP 400."
+  - "Cadence: every 60 seconds per provider, from each of 3 probe regions (us-east Virginia, eu-west Amsterdam, sgp Singapore). Headline p50/p90/p99 aggregate across all 3 regions via Prometheus avg(quantile_over_time(...)); per-region breakdowns are first-class on this page via the region tabs."
+  - "Payload: {\"jsonrpc\":\"2.0\",\"id\":<rotating>,\"method\":\"chain_getHeader\",\"params\":[]}. Plain HTTP POST. Substrate JSON-RPC."
+  - "Latency: client-side round-trip delta in milliseconds, exposed as both a gauge and a histogram (buckets 50 ms to 10 s), so percentiles are computed via Prometheus quantile_over_time over the last 24 hours."
+  - "Call-result classification: ok (HTTP 200 + parsable hex block number), http_err, jsonrpc_err, stale (block more than 40 behind the cross-provider tip), timeout. Latency without reliability is a misleading ranking signal."
+  - "This page is part of the per-chain RPC cluster derived from the cross-chain rpc-capabilities benchmark; the identical harness, cadence and exclusion rules apply on every chain."
+  - "Chain scope: every query on this page is pinned to chain=hydration. Provider coverage at launch: 2 endpoints (Hydration official, Dwellir)."
 
 findings:
-  - "Hydration RPC bench is suspended. All previously measured providers (Hydration official, Dwellir, Helikon, Dotters Network, Parachains Network) are unreachable."
+  - "{{best_name}} currently leads Hydration RPC at {{best_p50}} (chain_getHeader p50, 24h) across 2 measured providers."
 
 faq:
   - q: "What is the fastest free Hydration RPC right now?"
-    a: "This bench is currently suspended. All 5 previously measured keyless providers are DNS dead or returning HTTP 400. The bench will resume when at least one reachable endpoint is found."
-  - q: "Which Hydration RPCs work without an API key?"
-    a: "All 5 previously verified endpoints (Hydration official, Dwellir, Helikon, Dotters Network, Parachains Network) are currently unreachable. The bench will resume when providers recover."
+    a: "{{best_name}} currently leads at {{best_p50}} (Hydration block number p50 over the last 24h), measured against 2 providers probed every 60 seconds from us-east, eu-west and Singapore. The leaderboard re-sorts continuously against fresh Prometheus samples."
+  - q: "Which Hydration RPC endpoints work without an API key?"
+    a: "2 endpoints sustain continuous keyless probing at launch: Hydration official (rpc.hydradx.cloud) and Dwellir (hydration-rpc.n.dwellir.com). Every listed endpoint was live-verified with a chain_getHeader call returning a parsable block number before inclusion."
   - q: "Does the fastest Hydration RPC change by region?"
-    a: "Often. The region tabs at the top of the page re-scope every number to a single origin."
-  - q: "How is Hydration RPC latency measured here?"
-    a: "One identical Substrate JSON-RPC POST (`chain_getHeader`) every 60 seconds from each of 3 regions."
+    a: "Often. Public infra concentrates in specific regions; a gateway that wins from Amsterdam can lose from Singapore by multiples. The region tabs at the top of the page re-scope every number to a single origin."
+  - q: "How is Hydration RPC latency measured here, technically?"
+    a: "One chain_getHeader Substrate JSON-RPC POST every 60 seconds against each provider from each of 3 regions. Wall-clock round-trip is recorded at millisecond precision; p50/p90/p99 are computed via Prometheus quantile_over_time over 24 hours."
 
 source: https://github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities
 
@@ -58,14 +63,11 @@ dimensions:
     - { value: eu-west, label: EU-West }
     - { value: sgp,     label: Singapore }
 
-# All 5 previously measured providers are DNS dead or returning HTTP 400.
-# Suspended 2026-08-07. Will resume when endpoints recover.
-# Removed: dwellir, helikon, dotters-network, parachains-network
 providers:
   - slug: hydration-official
     name: Hydration
-    tag: Hydration official public RPC (currently unreachable)
-    formula: "50th percentile over 24h of client-side round-trip latency (ms) for a single `chain_getHeader` POST sent every 60s from 3 regions to the Hydration official no-key endpoint."
+    tag: Hydration official public RPC (rpc.hydradx.cloud), keyless
+    formula: "50th percentile over 24h of client-side round-trip latency (ms) for a chain_getHeader POST sent every 60s from 3 regions to rpc.hydradx.cloud."
     queries:
       p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="hydration-official", chain="hydration"})
       p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="hydration-official", chain="hydration"})
@@ -84,3 +86,26 @@ providers:
         - region: ap-southeast
           p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="hydration-official", chain="hydration", region="sgp"})
           series: avg_over_time(rpc_latency_milliseconds{provider="hydration-official", chain="hydration", region="sgp"}[1h])
+
+  - slug: dwellir
+    name: Dwellir
+    tag: Dwellir public Hydration RPC (hydration-rpc.n.dwellir.com), keyless
+    formula: "50th percentile over 24h of client-side round-trip latency (ms) for a chain_getHeader POST sent every 60s from 3 regions to hydration-rpc.n.dwellir.com."
+    queries:
+      p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="dwellir", chain="hydration"})
+      p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="dwellir", chain="hydration"})
+      p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="dwellir", chain="hydration"})
+      mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="dwellir", chain="hydration"})
+      success: sum(ocb:rpc_call:ok_rate_24h{provider="dwellir", chain="hydration"}) / sum(ocb:rpc_call:rate_24h{provider="dwellir", chain="hydration"})
+      sample_size: sum(ocb:rpc_call:increase_24h{provider="dwellir", chain="hydration"})
+      series: avg(avg_over_time(rpc_latency_milliseconds{provider="dwellir", chain="hydration"}[1h]))
+      regions:
+        - region: us-east
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="dwellir", chain="hydration", region="us-east"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="dwellir", chain="hydration", region="us-east"}[1h])
+        - region: eu-west
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="dwellir", chain="hydration", region="eu-west"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="dwellir", chain="hydration", region="eu-west"}[1h])
+        - region: ap-southeast
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="dwellir", chain="hydration", region="sgp"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="dwellir", chain="hydration", region="sgp"}[1h])

harnesses/rpc-capabilities/cmd/script/config.go

@@ -102,6 +102,19 @@ func chains() []Chain {
 				{Slug: "publicnode", Name: "PublicNode", URL: envDefault("RPC_URL_POLKADOT_PUBLICNODE", "https://polkadot-rpc.publicnode.com")},
 			},
 		},
+		// ─── Hydration (Polkadot parachain, Omnipool DEX) — Substrate
+		// chain_getHeader probe. Resumed 2026-08-19 after all 5 original
+		// providers went dead; verified: rpc.hydradx.cloud (Hydration
+		// official), hydration-rpc.n.dwellir.com (Dwellir).
+		{
+			Slug: "hydration",
+			Name: "Hydration",
+			Kind: "polkadot",
+			Providers: []Provider{
+				{Slug: "hydration-official", Name: "Hydration", URL: envDefault("RPC_URL_HYDRATION_OFFICIAL", "https://rpc.hydradx.cloud")},
+				{Slug: "dwellir", Name: "Dwellir", URL: envDefault("RPC_URL_HYDRATION_DWELLIR", "https://hydration-rpc.n.dwellir.com")},
+			},
+		},
 		// ─── Osmosis (Cosmos SDK, CometBFT / Tendermint) — first
 		// Cosmos chain in the cluster. Probed via Tendermint JSON-RPC
 		// `status` (returns sync_info.latest_block_height +

next.config.ts

@@ -264,7 +264,12 @@ const nextConfig: NextConfig = {
       },
       {
         source: "/apps/exec",
-        destination: "/benchmarks/trading-app-execution",
+        destination: "/trading-apps",
+        permanent: true,
+      },
+      {
+        source: "/benchmarks/trading-app-execution",
+        destination: "/trading-apps",
         permanent: true,
       },
       {