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The dottxt API uses bearer-token authentication.

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Header format

Authorization: Bearer <DOTTXT_API_KEY>

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Environment variable

export DOTTXT_API_KEY="sk-dottxt-..."

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Quick connection check

curl https://api.dottxt.ai/v1/models \
  -H "Authorization: Bearer $DOTTXT_API_KEY"
If the key is valid, the API returns a 200 response with a data array of accessible models.

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Next steps