Checked fact 168917 Oct 2026Agents and apps

On the Messages API the error code for the spend-cap response is enforced_spend_limit_reached.

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The exact words it rests on

Rate limits page: On the Messages API, error.details.error_code is enforced_spend_limit_reached. Use it to tell this response apart from a rate limit.

What the source said when we opened it, on 17 Oct 2026.

The source

Rate limits
Anthropic

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Checked

Checked by the notis newsroom on 17 Oct 2026, against the source above.

In the story

How spend and rate limits cap what an AI agent costs 17 Oct 2026

Cite this fact

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In a sentence

“On the Messages API the error code for the spend-cap response is enforced_spend_limit_reached.” ai notis, checked 17 Oct 2026. Source: Rate limits (Anthropic). https://ainotis.com/c/1689

As a reference (APA style)

ai notis. (2026, October 17). On the Messages API the error code for the spend-cap response is enforced_spend_limit_reached [Checked claim 1689]. ai notis. https://ainotis.com/c/1689

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