three.ws 3D Studio (free)

{'type': 'object', 'required': ['job_id'], 'properties': {'job_id': {'type': 'string', 'maxLength': 4096, 'minLength': 8, 'description': 'The job_id (or jobId) a pending generation returned.'}, 'refine': {'type': 'object', 'properties': {'lineage': {'type': 'array', 'items': {'type': 'object', 'additionalProperties': True}}, 'refKind': {'enum': ['text', 'image'], 'type': 'string'}, 'instruction': {'type': 'string', 'maxLength': 500}, 'parentIndex': {'type': 'integer', 'minimum': 0}}, 'description': 'Optional: the refine object a pending refine_model result carried. Pass it back unchanged so the finished model joins that version history.', 'additionalProperties': True}}, 'additionalProperties': False}

{'type': 'object', 'required': ['glb_url', 'name'], 'properties': {'name': {'type': 'string', 'maxLength': 80, 'minLength': 1, 'description': 'A display name for the persona, 1–80 characters.'}, 'voice': {'type': 'string', 'maxLength': 64, 'description': 'Optional voice name to speak with (used for audio-driven lip-sync when available).'}, 'glb_url': {'type': 'string', 'format': 'uri', 'description': 'Public https URL of the rigged GLB to embody (e.g. from forge_avatar).'}, 'source_prompt': {'type': 'string', 'maxLength': 1000, 'description': 'Optional: the prompt that generated this body, kept as provenance.'}}, 'additionalProperties': False}

{'type': 'object', 'properties': {'prompt': {'type': 'string', 'maxLength': 1000, 'description': 'Description of the character/avatar to generate.'}, 'image_url': {'type': 'string', 'format': 'uri', 'description': 'Optional http(s) URL to a reference image to reconstruct in 3D.'}, 'allow_non_humanoid': {'type': 'boolean', 'description': 'Set true to rig a non-humanoid subject anyway (rigging assumes a humanoid figure).'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['prompt'], 'properties': {'tier': {'enum': ['draft', 'standard', 'high'], 'type': 'string', 'description': 'Detail level: draft (fastest), standard (default), or high (best, slower; may fall back to standard under load).'}, 'prompt': {'type': 'string', 'maxLength': 1000, 'minLength': 3, 'description': 'Description of the single object or character to model, e.g. "a friendly round robot mascot, glossy white plastic".'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['persona_id'], 'properties': {'persona_id': {'type': 'string', 'maxLength': 64, 'minLength': 8, 'description': 'The persona_id returned by create_agent_persona.'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['glb_url'], 'properties': {'size': {'type': 'integer', 'maximum': 1024, 'minimum': 128, 'description': 'Pixel size of each square frame. Default 512.'}, 'views': {'type': 'array', 'items': {'enum': ['front', 'three-quarter', 'side', 'back', 'top', 'bottom'], 'type': 'string'}, 'maxItems': 6, 'description': 'Angles to render. Default: three-quarter, front, side, back.'}, 'glb_url': {'type': 'string', 'maxLength': 2048, 'minLength': 12, 'description': 'Public https URL of the .glb to look at.'}}, 'additionalProperties': False}

{'type': 'object', 'properties': {'prompt': {'type': 'string', 'maxLength': 1000, 'description': 'Description of the single object to model.'}, 'image_url': {'type': 'string', 'format': 'uri', 'description': 'Optional http(s) URL to a reference image to reconstruct directly.'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['persona_id', 'text'], 'properties': {'text': {'type': 'string', 'maxLength': 2000, 'minLength': 1, 'description': 'The reply text the agent is saying this turn: drives lip-sync and emotion.'}, 'emotion': {'enum': ['neutral', 'joy', 'sad', 'angry', 'surprised', 'thinking'], 'type': 'string', 'description': 'Optional explicit emotion override; omit to auto-detect from the text.'}, 'persona_id': {'type': 'string', 'maxLength': 64, 'minLength': 8, 'description': 'The persona to speak through.'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['glb_url', 'instruction'], 'properties': {'glb_url': {'type': 'string', 'format': 'uri', 'description': 'http(s) URL of the model to refine (e.g. the glbUrl a previous generation returned).'}, 'instruction': {'type': 'string', 'maxLength': 500, 'minLength': 1, 'description': 'The change to make, in plain language: "make it metallic", "bigger helmet", "add a cape".'}, 'parent_index': {'type': 'integer', 'minimum': 0, 'description': 'Optional: branch off an earlier version in parent_lineage (its index) instead of the latest.'}, 'parent_prompt': {'type': 'string', 'maxLength': 1000, 'description': 'Optional: the prompt that produced the model being refined, so the change builds on it instead of starting over.'}, 'parent_lineage': {'type': 'array', 'items': {'type': 'object', 'additionalProperties': True}, 'description': 'Optional: the lineage array from a previous refine_model result, to extend the same version history.'}, 'reference_image_url': {'type': 'string', 'format': 'uri', 'description': 'Optional http(s) image of the current model to anchor the re-generation (image→3D). Omit for text-guided refinement.'}}, 'additionalProperties': False}

{'type': 'object', 'required': ['glb_url'], 'properties': {'glb_url': {'type': 'string', 'format': 'uri', 'description': 'http(s) URL to the static GLB mesh to rig.'}}, 'additionalProperties': False}

{'type': 'object', 'properties': {'prompt': {'type': 'string', 'maxLength': 1000, 'description': 'Description of the avatar to generate.'}, 'image_url': {'type': 'string', 'format': 'uri', 'description': 'Optional http(s) URL to a reference image to reconstruct in 3D.'}}, 'additionalProperties': False}