From 9f8719929dbd1326d9b327885c4da319c6d2673c Mon Sep 17 00:00:00 2001
From: t <t@tjp.lol>
Date: Mon, 15 Jun 2026 17:08:00 -0600
Subject: anthropic credentials in oauth providers (eg copilot)

---
 libpanto/src/config.zig | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'libpanto/src/config.zig')

diff --git a/libpanto/src/config.zig b/libpanto/src/config.zig
index 7c8a495..f2f04e7 100644
--- a/libpanto/src/config.zig
+++ b/libpanto/src/config.zig
@@ -122,6 +122,11 @@ pub const AnthropicMessagesConfig = struct {
     /// between tool calls. Ignored when `thinking == .adaptive` (interleaving
     /// is automatic there) or `.disabled`.
     thinking_interleaved: bool = false,
+    /// Use `Authorization: Bearer ...` instead of `x-api-key`. This is set
+    /// by the embedder from the configured auth family (not guessed from the
+    /// base URL): standard Anthropic uses `false`, while OAuth-backed
+    /// Anthropic-compatible providers such as Copilot set `true`.
+    use_bearer_auth: bool = false,
     /// Place one `cache_control` breakpoint on the last cacheable block of
     /// each request, replicating Anthropic's "automatic caching" (a single
     /// advancing breakpoint) via the broadly-supported per-block marker
@@ -344,6 +349,7 @@ test "ProviderConfig - anthropic_messages variant" {
     try t.expectEqual(APIStyle.anthropic_messages, cfg.style());
     try t.expectEqualStrings("2023-06-01", cfg.anthropic_messages.api_version);
     try t.expectEqual(@as(u32, 64_000), cfg.anthropic_messages.max_tokens);
+    try t.expectEqual(false, cfg.anthropic_messages.use_bearer_auth);
     try t.expectEqual(Thinking.disabled, cfg.anthropic_messages.thinking);
     try t.expectEqual(Effort.medium, cfg.anthropic_messages.effort);
     try t.expectEqual(@as(?u32, 32_000), cfg.anthropic_messages.thinking_budget_tokens);
-- 
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