rwallet-online/backlog/tasks/task-4 - Fix-429-rate-limit...

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---
id: task-4
title: Fix 429 rate limiting on Safe API requests
status: Done
assignee: []
created_date: '2026-02-13 14:08'
labels:
- bugfix
- api
dependencies: []
priority: high
---
## Description
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Safe Transaction Service API was returning 429 errors when checking all 7 chains in parallel. Added retry with exponential backoff (up to 4 retries, 1s/2s/4s/8s delays) and staggered chain detection (150ms gaps) and data fetching (200ms gaps) to avoid rate limits.
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