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Sending x-api-key instead of api-key as header for azure hosted anthropic service #11517

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Merged
RomneyDa merged 3 commits into from
Mar 25, 2026
Merged

Sending x-api-key instead of api-key as header for azure hosted anthropic service #11517

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db5af6b
Fix for sending x-api-key instead of api-key as header for newer azur…
sresam89 Mar 16, 2026
9178f87
Update packages/openai-adapters/src/apis/AnthropicUtils.ts
sresam89 Mar 17, 2026
69548c4
fix: update test to expect x-api-key for Azure AI Foundry endpoints
RomneyDa Mar 25, 2026
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6 changes: 3 additions & 3 deletions packages/openai-adapters/src/apis/AnthropicUtils.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -93,14 +93,14 @@ describe("getAnthropicHeaders", () => {
expect(headers["api-key"]).toBeUndefined();
});

it("uses api-key for Azure AI Foundry endpoint", () => {
it("uses x-api-key for Azure AI Foundry endpoint", () => {
const headers = getAnthropicHeaders(
"azure-key",
false,
"https://my-resource.services.ai.azure.com/anthropic",
);
expect(headers["api-key"]).toBe("azure-key");
expect(headers["x-api-key"]).toBeUndefined();
expect(headers["x-api-key"]).toBe("azure-key");
expect(headers["api-key"]).toBeUndefined();
});

it("uses api-key for Azure Cognitive Services endpoint", () => {
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5 changes: 4 additions & 1 deletion packages/openai-adapters/src/apis/AnthropicUtils.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -78,7 +78,10 @@ export function getAnthropicHeaders(
);
}

const authHeaderName = isAzure ? "api-key" : "x-api-key";
const authHeaderName =
isAzure && apiBase?.toLowerCase().includes("cognitiveservices.azure.com")
? "api-key"
: "x-api-key";

const headers: Record<string, string> = {
"Content-Type": "application/json",
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