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CHANGELOG.md

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Changelog

v1.9.0 (2026-04-02)

Features

Multi-account token pooling (packages/proxy) — transparently pool multiple Anthropic API keys / Claude Max OAT tokens and select the best available one per request.

  • Auto-detect incoming tokens: tokens sent by Claude Code, Cursor, or any client via Authorization: Bearer are registered in the pool automatically (priority 10). Zero config change required for single-account users.
  • Explicit config accounts: add additional tokens under providers.anthropic.accounts[] in ~/.relayplane/config.json (priority 0 by default = tried first). Perfect for users with 2+ Claude Max subscriptions.
  • Smart selection: pool skips rate-limited tokens and proactively throttles at 90% of the known upstream RPM limit. Ties broken by fewest requests this minute.
  • Transparent 429 retry: if the selected token receives a 429, the proxy immediately retries with the next available token. Accurate retry-after is returned to the client only when all tokens are exhausted.
  • Learn from headers: anthropic-ratelimit-requests-limit, anthropic-ratelimit-requests-remaining, and retry-after headers are observed on every response to keep per-token rate-limit state fresh.
  • Status endpoint: GET /v1/token-pool/status returns per-account label, priority, requests-this-minute, known RPM limit, and rate-limit expiry.
  • Dashboard widget: new "Token Pool" collapsible section in the embedded dashboard shows live per-token status and a utilisation bar.

Config example

{
  "providers": {
    "anthropic": {
      "accounts": [
        { "label": "newmax", "apiKey": "sk-ant-oat01-...", "priority": 0 },
        { "label": "default", "apiKey": "sk-ant-oat01-...", "priority": 1 }
      ]
    }
  }
}

Backward compatible: single-token users (env var ANTHROPIC_API_KEY or incoming auth passthrough) see no behaviour change.

v1.8.40 and earlier

See git log for prior release notes.