curl --request POST \
  --url 'https://api.nsr.stateset.com/api/v1/backward-chain' \
  --header 'X-API-Key: YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "goal_args": [
    "string"
  ],
  "goal_predicate": "string",
  "max_depth": 1,
  "use_belief_guard": true
}'

{
  "belief_actions": [
    "string"
  ],
  "proofs": [
    {
      "confidence": 1,
      "steps": [],
      "substitution": {}
    }
  ],
  "proved": true,
  "total_proofs": 1
}