alchemyplatform/rundler

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An ERC-4337 Bundler in Rust

Stars: 391
Forks: 115
Open beginner issues: 0
Indexed issues: 46
Avg merge: 3h 11m
Merged PRs (30d): 4

Dominant language: Rust
License: LGPL-3.0
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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46 open issues indexed

Random balance-helper addresses amplify upstream RPC reads on Anvil forks Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

alchemyplatform/rundler#1334 · Opened Sep 8, 2026
Support fallback EVM RPC URLs for node_http and raw bundle submission Open

Difficulty 5/5 Over a week Newbie friendliness 48/100

alchemyplatform/rundler#1331 · Opened Sep 3, 2026
Wiz - 'main' Branch Scan Overview Open

Wiz-remediation

Difficulty 5/5 Over a week Newbie friendliness 20/100

alchemyplatform/rundler#1326 · Opened Aug 10, 2026
[sim] Paymaster verification gas estimation reverts Open

bug needs-triage prevent-stale

Difficulty 3/5 1-2 days Newbie friendliness 45/100

alchemyplatform/rundler#1213 · 1 comment · Opened Oct 28, 2025
Send UserOp is failed when EIP-1559 is not supported Open

bug needs-triage

Difficulty 3/5 1-2 days Newbie friendliness 45/100

alchemyplatform/rundler#1076 · 3 comments · Opened Mar 23, 2025
[builder] [consider] submit v0.6 & v0.7 bundles in the same transaction Open

enhancement

alchemyplatform/rundler#1066 · 1 assignee · Opened Mar 14, 2025
[refactor] Merge builder and mempool configs into a single file Open

enhancement

alchemyplatform/rundler#1028 · 1 assignee · Opened Feb 19, 2025
[sim] Relaxed rules for the `CREATE` opcode Open

enhancement

alchemyplatform/rundler#988 · 1 assignee · Opened Jan 31, 2025
[all] Dynamic bundle size priced PVG Open

enhancement prevent-stale

alchemyplatform/rundler#978 · 1 assignee · Opened Jan 29, 2025
Reduce dynamic RPC usage Open

enhancement

alchemyplatform/rundler#953 · 1 assignee · Opened Dec 24, 2024
Reduce baseline RPC usage Open

enhancement

alchemyplatform/rundler#952 · 1 assignee · Opened Dec 24, 2024
[pool] Consider new approach to paymaster balance tracking Open

enhancement

alchemyplatform/rundler#950 · 1 assignee · Opened Dec 23, 2024
[pool] Clean and refactor mempool reputation logic Open

enhancement

alchemyplatform/rundler#949 · 1 assignee · Opened Dec 23, 2024
[builder] Utilize `blockNumberMax` in conditional transations Open

enhancement prevent-stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

alchemyplatform/rundler#909 · 1 comment · Opened Nov 11, 2024
[sim] Implement whitelist rules for Arbitrum Stylus contracts Open

enhancement prevent-stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

alchemyplatform/rundler#907 · 1 comment · Opened Nov 5, 2024
[sim] Implement validation tracing for Arbitrum Stylus contracts Open

enhancement prevent-stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

alchemyplatform/rundler#906 · 1 comment · Opened Nov 5, 2024
[pool] Consider marking underpriced UOs as ineligible and not serving to builder Open

enhancement prevent-stale

alchemyplatform/rundler#889 · 1 comment · 1 assignee · Opened Oct 24, 2024
[style] Consolidate usage of tracing macros Open

enhancement

alchemyplatform/rundler#860 · 1 assignee · Opened Oct 16, 2024
[pool] Explore local tracing with revm Open

enhancement prevent-stale

alchemyplatform/rundler#840 · 8 comments · 1 assignee · Opened Oct 10, 2024
[sim] Move pending base fee estimation to `FeeEstimator` from provider Open

enhancement prevent-stale

alchemyplatform/rundler#825 · 1 assignee · Opened Oct 3, 2024
[pool/builder] Reorgs from inconsistent RPCs lead to lost UOs Open

enhancement prevent-stale

Difficulty 4/5 3-5 days Newbie friendliness 32/100

alchemyplatform/rundler#813 · 1 comment · Opened Sep 26, 2024
Alternative mempool doesn't bypass -32502 error. Open

bug prevent-stale

alchemyplatform/rundler#808 · 1 assignee · Opened Sep 23, 2024
[all] Consider using u128 to represent ETH values. Open

enhancement

alchemyplatform/rundler#805 · 1 assignee · Opened Sep 19, 2024
Optimize bundle gas limit overheads Open

enhancement prevent-stale

Difficulty 4/5 3-5 days Newbie friendliness 25/100

alchemyplatform/rundler#639 · 2 comments · Opened Mar 13, 2024
Test bun.js and see if we can replace our node dependenecy Open

enhancement javascript prevent-stale rust

alchemyplatform/rundler#623 · 1 assignee · Opened Feb 24, 2024
Create base docker image that can be used in default docker and cross arch files Open

enhancement prevent-stale

alchemyplatform/rundler#603 · 1 assignee · Opened Feb 15, 2024
[pool] clean up and separate the on_chain_update logic Open

enhancement

alchemyplatform/rundler#578 · 1 comment · 1 assignee · Opened Feb 1, 2024
[pool] Move entrypoint filtering before it hits the mempool Open

enhancement

alchemyplatform/rundler#574 · 2 assignees · Opened Jan 30, 2024
[pool] Check MaxOperationsReached before simulation Open

enhancement prevent-stale

alchemyplatform/rundler#571 · 1 assignee · Opened Jan 26, 2024
[rpc] Add `debug_bundler_addUserOps` Open

enhancement

alchemyplatform/rundler#524 · 1 assignee · Opened Dec 5, 2023
[pool] Skip simulation if the pool is full and the UO will not be accepted Open

enhancement

alchemyplatform/rundler#501 · 1 comment · 1 assignee · Opened Nov 16, 2023
[pool] Track used nonces Open

enhancement prevent-stale

Difficulty 5/5 Over a week Newbie friendliness 30/100

alchemyplatform/rundler#496 · 3 comments · Opened Nov 13, 2023
builder: adhere to spec bundling procedure Open

enhancement

alchemyplatform/rundler#425 · 1 comment · 1 assignee · Opened Sep 26, 2023
refactor: simulation and alt-mempools Open

enhancement

alchemyplatform/rundler#419 · 1 assignee · Opened Sep 25, 2023
refactor: error enums Open

enhancement prevent-stale

Difficulty 5/5 Over a week Newbie friendliness 25/100

alchemyplatform/rundler#417 · 2 comments · Opened Sep 25, 2023
refactor: settings types Open

enhancement prevent-stale

Difficulty 4/5 3-5 days Newbie friendliness 25/100

alchemyplatform/rundler#414 · 2 comments · Opened Sep 25, 2023
builder: Use access lists on bundle transaction for validation slots Open

enhancement prevent-stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

alchemyplatform/rundler#412 · 1 comment · Opened Sep 24, 2023
sim: Check code hashes prior to running 2nd simulation Open

enhancement prevent-stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

alchemyplatform/rundler#399 · 1 comment · Opened Sep 21, 2023
[pool] Use native tracer if available Open

enhancement

alchemyplatform/rundler#350 · 1 comment · 1 assignee · Opened Sep 7, 2023
rpc: Consider a one-shot approach to call gas estimation w/ binary search fallback Open

enhancement

alchemyplatform/rundler#343 · 1 comment · 1 assignee · Opened Sep 1, 2023
pool/rpc: User operation cache Open

enhancement prevent-stale

Difficulty 5/5 Over a week Newbie friendliness 30/100

alchemyplatform/rundler#284 · 1 comment · Opened Aug 7, 2023
pool: Support for out of order nonces Open

enhancement prevent-stale

Difficulty 5/5 Over a week Newbie friendliness 25/100

alchemyplatform/rundler#250 · 5 comments · Opened Jun 15, 2023
pool: Implement P2P mempool Open

enhancement

alchemyplatform/rundler#248 · 1 assignee · Opened Jun 14, 2023
rpc: improve error messaging for missing/invalid params Open

enhancement prevent-stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

alchemyplatform/rundler#210 · 1 comment · Opened May 3, 2023
[builder] Off-chain BLS signature aggregation Open

enhancement

alchemyplatform/rundler#205 · 1 comment · 1 assignee · Opened May 1, 2023
pool: Add waiting pool for UOs that are not ready for bundling Open

enhancement prevent-stale

Difficulty 5/5 Over a week Newbie friendliness 20/100

alchemyplatform/rundler#75 · 3 comments · Opened Mar 28, 2023

alchemyplatform/rundler

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