musistudio/claude-code-router · error · Error

New API account connector requires CCR Desktop browser…

Error message

New API account connector requires CCR Desktop browser account fetch support.

What it means

resolveSubscriptionSelf requires request.fetchProviderAccountJson to be a function — a browser-account fetch helper injected by CCR Desktop. If the host does not provide it (old build, non-Electron caller, direct unit invocation), the connector refuses to proceed.

Solutions

1. Update CCR Desktop to a build that injects fetchProviderAccountJson
2. If calling programmatically, pass a request object implementing fetchProviderAccountJson({ endpoint, credentials, headers, body, timeoutMs })
3. Verify the plugin version matches the host bridge version

Example fix

// before
await connector.resolveSubscriptionSelf({ connector, provider }); // missing helper

// after
await connector.resolveSubscriptionSelf({
  connector,
  provider,
  fetchProviderAccountJson: async ({ endpoint, init }) => fetch(endpoint, init).then(r => r.json()),
});

if (typeof request?.fetchProviderAccountJson !== 'function') {
  throw new Error('Host does not support browser account fetching; update CCR Desktop.');
}

function hasBrowserFetch(request: unknown): request is { fetchProviderAccountJson: (init: any) => Promise<any> } {
  return typeof (request as any)?.fetchProviderAccountJson === 'function';
}

null

When it happens

Trigger: Invoking the new-api-account connector's resolveSubscriptionSelf outside CCR Desktop, in an older Desktop build that predates fetchProviderAccountJson, or from tests with a stubbed request object missing the method.

Common situations: Version skew between the bundled plugin and the Desktop host, calling the connector programmatically without the bridge, or refactors that renamed the injected helper.

Related errors

• ARCHIVE_REPLAY_UNAVAILABLE

AI-assisted analysis of musistudio/claude-code-router@99f24806c6 (2026-08-27). Data as JSON: /api/errors/c7f69e99b3a602cb. Report an issue: GitHub.

Appendix: source

Thrown at packages/electron/bundled-plugins/new-api-account/index.cjs:24

const DEFAULT_TIMEOUT_MS = 15000;

module.exports = {
  setup(ctx) {
    ctx.logger?.info?.("new-api account connector registered");
    return {
      providerAccountConnectors: [
        {
          id: CONNECTOR_ID,
          resolve: resolveSubscriptionSelf
        }
      ]
    };
  }
};

async function resolveSubscriptionSelf(request) {
  if (typeof request.fetchProviderAccountJson !== "function") {
    throw new Error("New API account connector requires CCR Desktop browser account fetch support.");
  }

  const options = isRecord(request.connector?.options) ? request.connector.options : {};
  const root = newApiRootBaseUrl(readString(options.baseUrl) || providerBaseUrl(request.provider));
  if (!root) {
    throw new Error("New API provider base URL is missing.");
  }

  const timeoutMs = normalizeTimeoutMs(options.timeoutMs);
  const requestOrigin = readString(options.requestOrigin) || root;
  const refreshPayload = await request.fetchProviderAccountJson({
    body: options.refreshBody ?? {},
    credentials: "include",
    endpoint: rootUrl(root, readString(options.refreshPath) || DEFAULT_REFRESH_PATH),
    headers: readStringRecord(options.refreshHeaders),
    method: "POST",
    requestOrigin,
    timeoutMs

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