Technical blog

RPC tutorials and blockchain infrastructure notes

Technical guides for builders working with JSON-RPC, WebSocket subscriptions, archive data, tracing, and multi-chain edge routing.

RPC method guidesArchive and trace notesRealtime RPC

Tags

blockreq46 eth-subscribe38 websocket18 rpc17 robinhood16 launchpad11 robinhood-chain10 base8 solana4 arc3 uniswap-v43 json-rpc3 tokenlaunched2 logs-subscribe2 ethereum2 pons2 bsc2 token-launch2 launch-listen2 whitelist2 launched2 rwa2 wallet-watchlist2 typescript2 rpc-providers1 comparison1 pricing1 crossrate1 fx1 spl-token1 stablepair1 hook1 harmonic1 hookr1 agent-launch1 flap1 portal1 token-created1 anoncoin1 openlaunch1 stock-pair1 direct-launch1 initialize1 launch-spike1 paircreated1 basket-factory1 create-basket1 index1 long-eco1 stonk1 day11 stock-token1 swap1 aerodrome1 any-quote1 v4-initialize1 pumpfun1 custom-pairs1 quote-whitelist1 monad1 o11 day01 changelog1 subscription-filter1 anza1 agave1 rpc-compat1 release-watch1 multiplr1 leverage1 eth2x-fli1 companypad1 company-metric1 bucket1 basestonk1 advanced-launcher1 advancedlaunched1 messier1 p2p1 vault1 vaultdeposit1 stonks-exchange1 thestonks1 stonklauncher21 equifold1 multi-market1 brew1 double-pair1 launch1 arbitrum1 stablecoin-flow1 cronos1 pair-created1 first-liquidity1 laptop1 liquidity1 thin-liquidity1 stock-pairs1 bridge-rotation1 gas-heat1 position-watchtower1 timed-launch1 new-pairs-agent1 dex-volume1 alerts1 monitoring1 logs1 mint1 ethers-v61 viem1 foundry1 evm1

Articles

RecipesSep 8, 20265 min

Multi-address Transfer watchlist on Robinhood Chain with eth_subscribe

Multi-address Transfer watch on Robinhood Chain (EVM 0x1237): watchlist → subscribe → dedupe/spike tags. StackBlitz preview only; public WSS + Free 3M.

robinhood rpc websocket eth-subscribe

Read article

RecipesSep 8, 20265 min

Robinhood gas heat radar: eth_subscribe for chain-wide launch heat

Chain-wide gas heat radar on Robinhood Chain (EVM 0x1237): newHeads → 5/15m heat → spike hint. StackBlitz preview only; public WSS + Free 3M.

robinhood rpc websocket eth-subscribe

Read article

RecipesSep 7, 20265 min

Robinhood position watchtower: eth_subscribe for holding-period state

Holding-period Canary watchtower on Robinhood Chain (EVM 0x1237): position table → subscribe → state diff alerts. StackBlitz preview only; public WSS + Free 3M.

robinhood rpc websocket eth-subscribe

Read article

RecipesSep 7, 20265 min

Robinhood timed launch: hang eth_subscribe on a known T-0 window

Timed launch watch on Robinhood Chain (EVM 0x1237): known T-0 → subscribe → time-window filter → alert card. StackBlitz preview only; public WSS + Free 3M.

robinhood rpc websocket eth-subscribe

Read article

RecipesSep 7, 20265 min

Robinhood new-pairs agent: eth_subscribe feeds the stream first

New-pair pipeline on Robinhood Chain (EVM 0x1237): subscribe → filter → notify. StackBlitz preview only; public WSS + Free 3M. Differs from the wallet watchlist (known-wallet activity).

robinhood rpc websocket eth-subscribe

Read article

RecipesSep 7, 20265 min

Robinhood Chain wallet watchlist: eth_subscribe Transfer/Swap alerts and follow-on activity windows

Wallet-watchlist follow-on activity on Robinhood Chain (EVM 0x1237): watchlist → subscribe → short-window tags. StackBlitz preview only; public WSS + Free 3M.

robinhood rpc websocket eth-subscribe

Read article

RecipesSep 6, 20265 min

Measure Robinhood Chain DEX volume density with eth_subscribe (newHeads + Swap logs)

Volume-density watch on Robinhood Chain (EVM 0x1237): look → subscribe → tag → backfill. StackBlitz preview only; public WSS + Free 3M.

robinhood rpc websocket eth-subscribe

Read article

RecipesSep 5, 20269 min

Robinhood Chain launch monitoring with eth_subscribe: newHeads, narrow logs, and eth_getLogs backfill

Launch-monitoring stack on Robinhood Chain (EVM 0x1237): newHeads heartbeat, narrow logs, local pattern tags, reconnect backfill via eth_getLogs—public + Free 3M.

robinhood rpc websocket eth-subscribe

Read article

RecipesSep 5, 202612 min