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  • Quickstart
  • Migrating from Anthropic
  • Migrating from OpenAI
  • Authentication & keys
  • Overview
  • Feature support matrix
  • Errors & request IDs
  • Rate limits & retries
  • Both providers, one key
  • Cost monitoring & alerts
  • Failover
  • Install & configure
  • Data handling & retention
  • Support & SLA
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Documentation

We are a transparent proxy, so most of what you need is the provider’s own reference. These pages cover the parts that are ours.

Start here

Quickstart →

Get a key, change one line, make a request. About five minutes.

Getting started

  • QuickstartFive minutes from nothing to your first response.
  • Migrating from AnthropicOne diff. Nothing else changes.
  • Migrating from OpenAIOne diff. Nothing else changes.
  • Authentication & keysCreating, scoping, rotating, and revoking API keys.

API reference

  • OverviewWe are a transparent proxy. This page documents only where we differ.
  • Feature support matrixEvery feature, per provider, with no asterisks.
  • Errors & request IDsOur error codes, and how to tell ours apart from upstream's.

Guides

  • Rate limits & retriesHeaders, backoff, and what a 429 actually means here.
  • Both providers, one keyCalling Anthropic and OpenAI models from a single credential.
  • Cost monitoring & alertsUsage endpoints, budget caps, and webhook alerts.
  • FailoverWhat we do when an upstream provider is down.

Coding agent

  • Install & configureThe terminal agent, model selection, and permissions.

Operations

  • Data handling & retentionWhat we hold, for how long, and where.
  • Support & SLAResponse times, incident process, and how to reach a human.
Llowcostllm

Frontier model tokens, resold at a discount.

All systems operational

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  • Pricing
  • Savings calculator
  • Coding agent
  • Data handling

Developers

  • Quickstart
  • Migrate from Anthropic
  • Feature support
  • Rate limits & retries

Company

  • Contact
  • Status
  • Security

Legal

  • Terms of service
  • Privacy policy
  • Data processing addendum
  • Subprocessors

lowcostllm resells access to third-party large language models through their official APIs. We are an independent company and are not affiliated with, endorsed by, or acting as an agent of any model provider. Model names are used descriptively to identify the service being resold and remain the trademarks of their respective owners. [TODO: confirm reseller authorization before launch.]

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