Cline + Cheap Claude API

Cline is the open-source autonomous coding agent for VS Code. It's powerful — and on Claude Sonnet 4 it can burn $5–10 a day if you let it run agent loops. Pointing it at a pay-as-you-go proxy cuts that bill 30–60% with zero feature loss.

Two fields to change: Provider = "Anthropic", Base URL = https://tokenprovider.store, API Key = your proxy key. Done in under 3 minutes.

Why bother?

Cline is agentic — it reads files, runs commands, edits code in long loops. Each iteration sends the full context window back to Claude, which means token spend grows fast. A 30-minute coding session can easily push 500k tokens. At official Sonnet rates that's around $3–5; at proxy rates it's $1.50–$2.50.

Prerequisites

  • VS Code 1.85+
  • A TokenProvider account and an active API key (sign up here)

Step-by-step

  1. Install Cline

    VS Code → Extensions tab → search "Cline" → Install. The extension adds a robot icon to the activity bar.

  2. Open Cline settings

    Click the Cline robot icon → click the gear icon in the top-right of the panel. You'll see a provider dropdown.

  3. Pick Anthropic, then "Use custom base URL"

    Provider = Anthropic. Tick "Use custom base URL" (or the equivalent field — Cline updates this UI occasionally).

  4. Fill in base URL + key

    Base URL: https://tokenprovider.store
    API Key: your TokenProvider key (starts with sk-)
    Model: claude-sonnet-4-20250514

    Don't include /v1 at the end of the base URL — Cline appends the Anthropic path itself. Trailing slash optional.

  5. Test

    Open the Cline panel, type "list the files in this repo", and watch it call the tool. If you see a normal response, routing is working.

  6. Watch the spend

    The Cline status bar shows tokens-per-task. Cross-reference with your TokenProvider dashboard — per-request log with model, tokens, cost.

Recommended Cline settings for cost

  • Auto-approve safe tools: read_file, list_files, search_files. Don't auto-approve write_to_file or execute_command.
  • Cap "max requests per task" at 50 — prevents runaway loops.
  • Disable "always read full files" for large repos — let Cline pick what to read.
  • Use Haiku for triage tasks — switch model to claude-haiku-4-20250514 for simple lookups, then switch back to Sonnet for the actual edit.

Common issues

SymptomCauseFix
401 UnauthorizedWrong key or providerDouble-check Provider = Anthropic and key is the proxy key, not Anthropic's
404 model_not_foundModel name typoUse the full versioned name e.g. claude-sonnet-4-20250514
"Failed to fetch"Base URL has wrong scheme or trailing pathMust be https://tokenprovider.store exactly
402 Insufficient BalanceAccount out of fundsTop up — minimum $1

One key, three tools

The same key works in Cline, Cursor, and Claude Code simultaneously — and can also drive ChatGPT and Gemini if you change the model field. No reason to juggle three accounts.

Cut your Cline bill in half — same workflow

$1 minimum top-up. Pay per token. Cancel anytime.

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