Create Agent changedapi/beta/agents/create
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Lines−3removed
From line
129
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14 Aug 2026
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from line 129, old and new numbered
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from line 129
129129
130130- `model: BetaManagedAgentsModel or BetaManagedAgentsModelConfigParams`
131131
132 Model identifier. Accepts the [model string](https://platform.claude.com/docs/en/about-claude/models/overview?sdk_languages=http#latest-models-comparison), e.g. `claude-opus-5`, or a `model_config` object for additional configuration control
132 Model identifier. Accepts the [model string](https://platform.claude.com/docs/en/about-claude/models/overview?sdk_languages=http#latest-models-comparison), e.g. `claude-opus-5-5`, or a `model_config` object for additional configuration control
133133
134134 - `BetaManagedAgentsModel = "claude-haiku-5-5" or "claude-sonnet-5-5" or "claude-opus-5-5" or 14 more or string`
135135
from line 1826
18261826 -H 'anthropic-beta: managed-agents-2026-04-01' \
18271827 -H "X-Api-Key: $ANTHROPIC_API_KEY" \
18281828 -d '{
1829 "model": "claude-opus-5",
1829 "model": "claude-opus-5-5",
18301830 "name": "My First Agent",
18311831 "description": "A general-purpose starter agent.",
18321832 "metadata": {
from line 1860
18601860 "foo": "bar"
18611861 },
18621862 "model": {
1863 "id": "claude-opus-5",
1863 "id": "claude-opus-5-5",
18641864 "effort": {
18651865 "type": "low"
18661866 },
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