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RPC repairs: swellchain and superseed retire, 34 dead endpoints leave, 8 replacements join - #3044
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swellchain: Ankr now requires a key (403), Sentio answers 404 and Thirdweb refuses, so only dRPC is left and the page has read expired since 2026-08-23. superseed: the official RPC and Thirdweb both front Conduit, which now demands a key (-32403), and dRPC no longer serves the chain (-32601); nothing has answered since 2026-10-14. A second keyless provider was searched for on both (PublicNode, Tenderly, OnFinality, Alchemy public, the chains' own hosts) and none answered. Same retirement as #2784: specs and harness entries deleted, /chains entries and the speedtest directory row go, slugs added to REMOVED_BENCH_SLUGS and the middleware matcher so indexed URLs answer 410 Gone.
Every public RPC pair under 5 percent success over 24h was re-tested by hand with its chain's own protocol on 2026-10-19. 34 are dead and leave the harness and their spec: Lava's hosts answer 410 Gone (arbitrum, ethereum, near, solana, sonic), AutoStake's Cosmos hosts 404, PublicNode dropped eleven Cosmos chains plus XRP, Ankr now requires a key (bitlayer, iotex), Mysten's fullnode retired JSON-RPC, and a handful of single hosts stopped resolving or answer 502. Bandchain's Stakewolle row answers by hand and stays. Thirdweb stays everywhere: it answers browsers and refuses probe hosts, which the pages already report. Eight replacements were found, each checked for chain id and head height against the chain's live endpoint: dRPC on aurora, harmony and gravity, IoTeX's own .io gateway, AU on songbird, Stake&Relax on neutron, Stakewolle on nolus and ECO Stake on regen. Copy that named a departed provider is rewritten and dated. New marks for ECO Stake and AU, an alias for iotex-official, registry entries for AU and iotex-official.
Flotapponnier
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Flotapponnier
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public.stakewolle.com/cosmos/<chain>/rpc answers GET /status but returns 404 to the probe's JSON-RPC POST unless the path ends in a slash. That is why bandchain's Stakewolle row read 0 percent while the endpoint answers, and why the Nolus row added in #3044 published nothing. Both URLs get the slash.
Flotapponnier
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public.stakewolle.com/cosmos/<chain>/rpc answers GET /status but returns 404 to the probe's JSON-RPC POST unless the path ends in a slash. That is why bandchain's Stakewolle row read 0 percent while the endpoint answers, and why the Nolus row added in #3044 published nothing. Both URLs get the slash. (cherry picked from commit a0d99df)
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…, 8 replacements join (ChainBench#3044) * swellchain-rpc and superseed-rpc retire: no keyless endpoint answers swellchain: Ankr now requires a key (403), Sentio answers 404 and Thirdweb refuses, so only dRPC is left and the page has read expired since 2026-08-23. superseed: the official RPC and Thirdweb both front Conduit, which now demands a key (-32403), and dRPC no longer serves the chain (-32601); nothing has answered since 2026-10-14. A second keyless provider was searched for on both (PublicNode, Tenderly, OnFinality, Alchemy public, the chains' own hosts) and none answered. Same retirement as ChainBench#2784: specs and harness entries deleted, /chains entries and the speedtest directory row go, slugs added to REMOVED_BENCH_SLUGS and the middleware matcher so indexed URLs answer 410 Gone. * RPC sweep: 34 dead endpoints leave, 8 replacements join Every public RPC pair under 5 percent success over 24h was re-tested by hand with its chain's own protocol on 2026-10-19. 34 are dead and leave the harness and their spec: Lava's hosts answer 410 Gone (arbitrum, ethereum, near, solana, sonic), AutoStake's Cosmos hosts 404, PublicNode dropped eleven Cosmos chains plus XRP, Ankr now requires a key (bitlayer, iotex), Mysten's fullnode retired JSON-RPC, and a handful of single hosts stopped resolving or answer 502. Bandchain's Stakewolle row answers by hand and stays. Thirdweb stays everywhere: it answers browsers and refuses probe hosts, which the pages already report. Eight replacements were found, each checked for chain id and head height against the chain's live endpoint: dRPC on aurora, harmony and gravity, IoTeX's own .io gateway, AU on songbird, Stake&Relax on neutron, Stakewolle on nolus and ECO Stake on regen. Copy that named a departed provider is rewritten and dated. New marks for ECO Stake and AU, an alias for iotex-official, registry entries for AU and iotex-official. (cherry picked from commit fac4b5f)
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Two commits.
1. swellchain-rpc and superseed-rpc retire
No keyless replacement found. Same method as #2784: specs and harness entries deleted,
/chainsentries and speedtest row removed, slugs inREMOVED_BENCH_SLUGS+ middleware matcher → 410 Gone.2. Sweep of every public RPC pair
Every chain/provider pair under 5% success over 24h (35) was re-tested by hand with the chain's protocol. 34 confirmed dead, removed from harness and spec:
xdc-org, same dead host)Kept: Bandchain/Stakewolle (answers by hand), Thirdweb everywhere (answers browsers, refuses probe hosts; already reported as silent).
8 replacements, each checked for chain id + head height against the chain's live endpoint:
1RPC was not added anywhere: it reads 15% from our probe hosts on the chains we already measure.
Not fixable keyless today (still one live provider): comdex, hedera, interlay, kaia, oasis-emerald, oasis-sapphire, reya, telos, vana, xrp, zircuit.
Copy naming a departed provider rewritten and dated; logos for ECO Stake and AU;
iotex-officialalias; registry entries.Gates:
pnpm validate,tsc,bun test597 pass, eslint,go build/vet/test, preflight PASS on the touched chains.