feat: add 8 Tier-1 RPC chains (rootstock/metis/manta/story/morph/moonriver/hemi/bob)

benchmarks/bob-rpc.yml

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+# OpenChainBench. Bench № 137
+
+slug: bob-rpc
+number: "137"
+title: Fastest free BOB RPC, live no-key EVM endpoint latency
+seo_title: "Fastest free BOB RPC 2026"
+seo_description: "{{best_name}} leads free BOB RPC at {{best_p50}} (`eth_getBlockByNumber` p50, 24h). 4 no-key providers measured every 60s from 3 regions."
+subtitle: HTTP round-trip latency for the `eth_getBlockByNumber(\"latest\", false)` method against every free, no-key public BOB EVM endpoint, audited every 60 seconds from 3 regions.
+
+category: RPCs
+status: live
+metric: RPC latency
+unit: ms
+higher_is_better: false
+
+seo_intro: |
+  BOB (Build on Bitcoin) is an OP Stack hybrid L2 (chain 60808) that bridges Bitcoin and Ethereum, enabling Bitcoin DeFi with EVM smart contracts and native BTC collateral, ETH gas token, ~2 s block cadence, settlement on Ethereum. Integrated with Babylon BTC staking and leading Bitcoin LSTs. The 2026-08-03 audit confirms 4 clean keyless providers: the BOB official endpoint (rpc.gobob.xyz), Tenderly Gateway (bob.gateway.tenderly.co), dRPC (bob.drpc.org), and Thirdweb (60808.rpc.thirdweb.com). Excluded: Ankr (no bob route), Alchemy (key required), QuickNode (key required).
+
+abstract: |
+  Per-chain member of the RPC latency cluster, extended to BOB.
+  We measure the round-trip latency of a single, identical JSON-RPC call
+  (`eth_getBlockByNumber(\"latest\", false)`) against every no-key public
+  BOB endpoint that sustains continuous probing, 4 providers
+  measured, every 60 seconds, from us-east, eu-west and Singapore. The
+  harness classifies every response (ok / http_err / jsonrpc_err / stale
+  / timeout) with a BOB-scaled staleness gap (20 blocks
+  at BOB's ~2 s block time). The cross-chain view
+  lives on the parent `rpc-capabilities` benchmark; this page is the
+  BOB-scoped answer with per-region breakdowns as a first-class
+  dimension.
+
+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\":\"eth_getBlockByNumber\",\"params\":[\"latest\", false]}`. Plain HTTP POST, identical for every endpoint, no API key in any request. Non-cacheable by design: the rotating id defeats edge caches that would answer a bare head query without touching a node."
+  - "Latency: client-side round-trip delta in milliseconds, exposed as both a gauge and a histogram (buckets 50 ms → 10 s), so percentiles are computed via Prometheus `quantile_over_time` over the last 24 hours."
+  - "Call-result classification: `ok` (HTTP 200 + non-empty result with a parsable hex block number), `http_err`, `jsonrpc_err` (HTTP 200 carrying an error body), `stale` (more than 20 blocks 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](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=\"bob\"`. Provider coverage: 4 no-key endpoints."
+
+findings:
+  - "{{best_name}} currently leads free BOB RPC at {{best_p50}} (`eth_getBlockByNumber` p50, 24h) across 4 measured providers."
+
+faq:
+  - q: "What is the fastest free BOB RPC right now?"
+    a: "{{best_name}} currently leads at {{best_p50}} (`eth_getBlockByNumber(\"latest\", false)` p50 over the last 24h), measured against 4 no-key providers probed every 60 seconds from us-east, eu-west and Singapore. The leaderboard re-sorts continuously against fresh Prometheus samples. Use the region tabs to see the leader from the origin closest to your deployment."
+  - q: "Which BOB RPCs work without an API key?"
+    a: "4 endpoints sustain continuous keyless probing: the BOB official endpoint (rpc.gobob.xyz), Tenderly Gateway (bob.gateway.tenderly.co), dRPC (bob.drpc.org), and Thirdweb (60808.rpc.thirdweb.com). Every listed endpoint was live-verified with a `eth_getBlockByNumber` POST returning a parsable response before inclusion."
+  - q: "Does the fastest BOB RPC change by region?"
+    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; pick the one closest to where your requests originate."
+  - q: "How is BOB RPC latency measured here, technically?"
+    a: "One identical `eth_getBlockByNumber(\"latest\", false)` POST every 60 seconds against each provider from each of 3 regions, using the same plain HTTP client the rest of the RPC cluster uses. Wall-clock round-trip is recorded at millisecond precision; p50/p90/p99 are computed via Prometheus `quantile_over_time` over 24 hours. Responses are classified (`ok` / `http_err` / `jsonrpc_err` / `stale` / `timeout`) so an endpoint stuck on an old head or returning errors behind HTTP 200 is never ranked as fastest."
+
+source: https://github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities
+
+prometheus:
+  window: 24h
+  freshness_metric: rpc_latency_milliseconds
+
+rank_matrix_query: avg by (provider, region) (ocb:rpc_latency_milliseconds:p50_24h{chain="bob"})
+
+dimensions:
+  region:
+    - { value: all,     label: All regions }
+    - { value: us-east, label: US-East }
+    - { value: eu-west, label: EU-West }
+    - { value: sgp,     label: Singapore }
+
+providers:
+  - slug: bob-official
+    name: BOB
+    tag: BOB official public RPC endpoint operated by Conduit
+    formula: "50th percentile over 24h of client-side round-trip latency (ms) for a single `eth_getBlockByNumber(\"latest\", false)` POST sent every 60s from 3 regions (us-east + eu-west + sgp) to BOB's no-key bob RPC endpoint."
+    queries:
+      p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="bob-official", chain="bob"})
+      p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="bob-official", chain="bob"})
+      p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="bob-official", chain="bob"})
+      mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="bob-official", chain="bob"})
+      success: sum(ocb:rpc_call:ok_rate_24h{provider="bob-official", chain="bob"}) / sum(ocb:rpc_call:rate_24h{provider="bob-official", chain="bob"})
+      sample_size: sum(ocb:rpc_call:increase_24h{provider="bob-official", chain="bob"})
+      series: avg(avg_over_time(rpc_latency_milliseconds{provider="bob-official", chain="bob"}[1h]))
+      regions:
+        - region: us-east
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="bob-official", chain="bob", region="us-east"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="bob-official", chain="bob", region="us-east"}[1h])
+        - region: eu-west
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="bob-official", chain="bob", region="eu-west"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="bob-official", chain="bob", region="eu-west"}[1h])
+        - region: ap-southeast
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="bob-official", chain="bob", region="sgp"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="bob-official", chain="bob", region="sgp"}[1h])
+
+  - slug: tenderly
+    name: Tenderly
+    tag: Tenderly public gateway for BOB
+    formula: "50th percentile over 24h of client-side round-trip latency (ms) for a single `eth_getBlockByNumber(\"latest\", false)` POST sent every 60s from 3 regions (us-east + eu-west + sgp) to Tenderly's no-key bob RPC endpoint."
+    queries:
+      p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="tenderly", chain="bob"})
+      p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="tenderly", chain="bob"})
+      p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="tenderly", chain="bob"})
+      mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="tenderly", chain="bob"})
+      success: sum(ocb:rpc_call:ok_rate_24h{provider="tenderly", chain="bob"}) / sum(ocb:rpc_call:rate_24h{provider="tenderly", chain="bob"})
+      sample_size: sum(ocb:rpc_call:increase_24h{provider="tenderly", chain="bob"})
+      series: avg(avg_over_time(rpc_latency_milliseconds{provider="tenderly", chain="bob"}[1h]))
+      regions:
+        - region: us-east
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="tenderly", chain="bob", region="us-east"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="tenderly", chain="bob", region="us-east"}[1h])
+        - region: eu-west
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="tenderly", chain="bob", region="eu-west"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="tenderly", chain="bob", region="eu-west"}[1h])
+        - region: ap-southeast
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="tenderly", chain="bob", region="sgp"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="tenderly", chain="bob", region="sgp"}[1h])
+
+  - slug: drpc
+    name: dRPC
+    tag: dRPC public gateway routing to BOB node pool
+    formula: "50th percentile over 24h of client-side round-trip latency (ms) for a single `eth_getBlockByNumber(\"latest\", false)` POST sent every 60s from 3 regions (us-east + eu-west + sgp) to dRPC's no-key bob RPC endpoint."
+    queries:
+      p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="drpc", chain="bob"})
+      p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="drpc", chain="bob"})
+      p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="drpc", chain="bob"})
+      mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="drpc", chain="bob"})
+      success: sum(ocb:rpc_call:ok_rate_24h{provider="drpc", chain="bob"}) / sum(ocb:rpc_call:rate_24h{provider="drpc", chain="bob"})
+      sample_size: sum(ocb:rpc_call:increase_24h{provider="drpc", chain="bob"})
+      series: avg(avg_over_time(rpc_latency_milliseconds{provider="drpc", chain="bob"}[1h]))
+      regions:
+        - region: us-east
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="drpc", chain="bob", region="us-east"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="drpc", chain="bob", region="us-east"}[1h])
+        - region: eu-west
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="drpc", chain="bob", region="eu-west"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="drpc", chain="bob", region="eu-west"}[1h])
+        - region: ap-southeast
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="drpc", chain="bob", region="sgp"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="drpc", chain="bob", region="sgp"}[1h])
+
+  - slug: thirdweb
+    name: Thirdweb
+    tag: Thirdweb public RPC gateway for BOB
+    formula: "50th percentile over 24h of client-side round-trip latency (ms) for a single `eth_getBlockByNumber(\"latest\", false)` POST sent every 60s from 3 regions (us-east + eu-west + sgp) to Thirdweb's no-key bob RPC endpoint."
+    queries:
+      p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="thirdweb", chain="bob"})
+      p90: avg(ocb:rpc_latency_milliseconds:p90_24h{provider="thirdweb", chain="bob"})
+      p99: avg(ocb:rpc_latency_milliseconds:p99_24h{provider="thirdweb", chain="bob"})
+      mean: avg(ocb:rpc_latency_milliseconds:mean_24h{provider="thirdweb", chain="bob"})
+      success: sum(ocb:rpc_call:ok_rate_24h{provider="thirdweb", chain="bob"}) / sum(ocb:rpc_call:rate_24h{provider="thirdweb", chain="bob"})
+      sample_size: sum(ocb:rpc_call:increase_24h{provider="thirdweb", chain="bob"})
+      series: avg(avg_over_time(rpc_latency_milliseconds{provider="thirdweb", chain="bob"}[1h]))
+      regions:
+        - region: us-east
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="thirdweb", chain="bob", region="us-east"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="thirdweb", chain="bob", region="us-east"}[1h])
+        - region: eu-west
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="thirdweb", chain="bob", region="eu-west"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="thirdweb", chain="bob", region="eu-west"}[1h])
+        - region: ap-southeast
+          p50: avg(ocb:rpc_latency_milliseconds:p50_24h{provider="thirdweb", chain="bob", region="sgp"})
+          series: avg_over_time(rpc_latency_milliseconds{provider="thirdweb", chain="bob", region="sgp"}[1h])