---
title: "Fix guides: rate limits, 429 and overload errors"
canonical: https://relayswitch.io/fix
generated: 2026-11-02T10:04:24.373Z
source: https://api.relayswitch.io/v1/catalog
base_url: https://api.relayswitch.io/v1
---

Fix

# Fix guides, by the error you got

Rate-limit and overload errors by their exact text: what the vendor’s docs say each one means, the retry rule, and the fix on a key that fails over at the same price with limits per key.

[## Claude Code: API Error: Rate limit reached

the 429 behind "API Error: Rate limit reached" in Claude Code, the retry-after rule, and the two-variable switch to a key with its own limits](https://relayswitch.io/fix/claude-code-rate-limit-reached)[## OpenRouter 429: Provider returned error

what OpenRouter's 429 "Provider returned error" means per its docs, the free-model caps, and a base-URL switch to a key that fails over](https://relayswitch.io/fix/openrouter-429-provider-returned-error)[## Gemini API 429 RESOURCE\_EXHAUSTED

Google's 429 RESOURCE\_EXHAUSTED, the RPM / TPM / RPD dimensions behind it, exponential backoff, and Gemini on a key with per-key limits](https://relayswitch.io/fix/gemini-api-429-resource-exhausted)[## Anthropic 529 overloaded\_error

Anthropic's 529 overloaded\_error, why a retry alone is not a fix, and Claude on a key that tries the next route before you see it](https://relayswitch.io/fix/anthropic-529-overloaded)[## OpenRouter: No endpoints found

the 404 "No endpoints found" from OpenRouter, its tool-use variant, and a catalog where every listed id has a route](https://relayswitch.io/fix/openrouter-no-endpoints-found)

The fix every page ends on

## A key that fails over, with limits you set

From the OpenAPI document, read 2026-10-31.

Failover before you see it

A route that fails with a 5xx or a 429 is retried on the next route for the same model. x-uplink-attempts on the answer counts the tries; the price is the model’s own either way.

Your own fallback list

models: \[...\] names up to 5 models tried in order once every route of the one before has failed before a byte was sent. Each bills at its own price when it answers.

Failed requests are not charged

A 429, 502 or 503 from this API charges nothing and carries retry-after: back off that long before trying again.

Limits per key, set by you

rpm from 1 to 100,000, tpm from 1 to 50,000,000 and concurrency from 1 to 10,000 on each key. Default: 600 requests a minute per key, 50 in flight per account.

A budget per key

budget\_usd plus a daily, weekly or monthly spend limit. The key stops at its own line with a 402; the rest of the balance is untouched.

One request id

x-uplink-request-id on every answer, errors included. Quote it and we find the call.

Related

-   [Routing and fallbacks](https://relayswitch.io/features/routing)
-   [Key budgets and limits](https://relayswitch.io/features/key-budgets)
-   [Live status](https://relayswitch.io/status)
-   [Docs](https://relayswitch.io/docs)

## A key that does not stop at one host

Failover at the same price, limits and a budget per key, failed requests not charged. Card or crypto, no KYC, no subscription.

[Live status](https://relayswitch.io/status)[Get a key](https://app.relayswitch.io/console)