lovart

## Troubleshooting If requests fail, run `okou doctor check-connector --env-name LOVART_ACCESS_KEY` or `okou doctor check-connector --url https://lgw.lovart.ai/v1/openapi/mode/query --method POST` ## Authentication All requests use AK/SK HMAC-SHA256 signature authentication. Each request requires five signed headers: | Header | Value | |---|---| | `X-Access-Key` | `$LOVART_ACCESS_KEY` | | `X-Timestamp` | Current Unix timestamp | | `X-Signature` | HMAC-SHA256 of `{METHOD}\n{PATH}\n{TIMESTAMP}` using `$LOVART_SECRET_KEY` | | `X-Signed-Method` | HTTP method (e.g. `POST`) | | `X-Signed-Path` | Request path (e.g. `/v1/openapi/chat`) | ## Environment Variables | Variable | Description | |---|---| | `LOVART_ACCESS_KEY` | Lovart access key (format: `ak_...`) | | `LOVART_SECRET_KEY` | Lovart secret key (format: `sk_...`) | ## Key Endpoints Base URL: `https://lgw.lovart.ai` ### 1. Generate Design (Chat) `POST /v1/openapi/chat` Send a natural-language prompt to generate images, videos, or other visual content. Returns a `thread_id` for tracking. ```bash TIMESTAMP=$(date +%s) && SIGNATURE=$(echo -ne "POST\n/v1/openapi/chat\n${TIMESTAMP}" | openssl dgst -sha256 -hmac "$LOVART_SECRET_KEY" | awk '{print $NF}') && curl -s -X POST "https://lgw.lovart.ai/v1/openapi/chat" --header "Content-Type: application/json" --header "X-Access-Key: $LOVART_ACCESS_KEY" --header "X-Timestamp: ${TIMESTAMP}" --header "X-Signature: ${SIGNATURE}" --header "X-Signed-Method: POST" --header "X-Signed-Path: /v1/openapi/chat" -d @/tmp/lovart_chat.json ``` Write to `/tmp/lovart_chat.json`: ```json { "prompt": "<your-design-description>", "project_id": "<your-project-id>" } ``` To continue a conversation, add `"thread_id": "<your-thread-id>"`. To attach reference images, add `"attachments": ["<cdn-url>"]`. To specify a preferred model, add `"tool_config": {"prefer_tool_categories": {"IMAGE": ["generate_image_flux_2_max"]}}`. To force a specific tool (e.g. upscale), add `"tool_config": {"include_tools": ["upscale_image"]}`. Response: `{"thread_id": "..."}` ### 2. Check Generation Status `GET /v1/openapi/chat/status?thread_id=<thread-id>` ```bash TIMESTAMP=$(date +%s) && SIGNATURE=$(echo -ne "GET\n/v1/openapi/chat/status\n${TIMESTAMP}" | openssl dgst -sha256 -hmac "$LOVART_SECRET_KEY" | awk '{print $NF}') && curl -s "https://lgw.lovart.ai/v1/openapi/chat/status?thread_id=<your-thread-id>" --header "X-Access-Key: $LOVART_ACCESS_KEY" --header "X-Timestamp: ${TIMESTAMP}" --header "X-Signature: ${SIGNATURE}" --header "X-Signed-Method: GET" --header "X-Signed-Path: /v1/openapi/chat/status" ``` Response includes `status` (`running`, `done`, `pending_confirmation`, `failed`) and `progress` (0-100). ### 3. Get Generation Result `GET /v1/openapi/chat/result?thread_id=<thread-id>` ```bash TIMESTAMP=$(date +%s) && SIGNATURE=$(echo -ne "GET\n/v1/openapi/chat/result\n${TIMESTAMP}" | openssl dgst -sha256 -hmac "$LOVART_SECRET_KEY" | awk '{print $NF}') && curl -s "https://lgw.lovart.ai/v1/openapi/chat/result?thread_id=<your-thread-id>" --header "X-Access-Key: $LOVART_ACCESS_KEY" --header "X-Timestamp: ${TIMESTAMP}" --header "X-Signature: ${SIGNATURE}" --header "X-Signed-Method: GET" --header "X-Signed-Path: /v1/openapi/chat/result" ``` Response includes `items` with generated artifacts (image URLs, video URLs) and `thread_id`. ### 4. Confirm High-Cost Operation `POST /v1/openapi/chat/confirm` When status is `pending_confirmation`, confirm to proceed with high-cost operations (e.g. video generation). ```bash TIMESTAMP=$(date +%s) && SIGNATURE=$(echo -ne "POST\n/v1/openapi/chat/confirm\n${TIMESTAMP}" | openssl dgst -sha256 -hmac "$LOVART_SECRET_KEY" | awk '{print $NF}') && curl -s -X POST "https://lgw.lovart.ai/v1/openapi/chat/confirm" --header "Content-Type: application/json" --header "X-Access-Key: $LOVART_ACCESS_KEY" --header "X-Timestamp: ${TIMESTAMP}" --header "X-Signature: ${SIGNATURE}" --header "X-Signed-Method: POST" --header "X-Signed-Path: /v1/openapi/chat/confirm" -d @/tmp/lovart_confirm.json ``` Write to `/tmp/lovart_confirm.json`: ```json { "thread_id": "<your-thread-id>" } ``` ### 5. Create Project `POST /v1/openapi/project/save` ```bash TIMESTAMP=$(date +%s) && SIGNATURE=$(echo -ne "POST\n/v1/openapi/project/save\n${TIMESTAMP}" | openssl dgst -sha256 -hmac "$LOVART_SECRET_KEY" | awk '{print $NF}') && curl -s -X POST "https://lgw.lovart.ai/v1/openapi/project/save" --header "Content-Type: application/json" --header "X-Access-Key: $LOVART_ACCESS_KEY" --header "X-Timestamp: ${TIMESTAMP}" --header "X-Signature: ${SIGNATURE}" --header "X-Signed-Method: POST" --header "X-Signed-Path: /v1/openapi/project/save" -d @/tmp/lovart_project.json ``` Write to `/tmp/lovart_project.json`: ```json { "project_id": "", "project_name": "<your-project-name>", "project_type": 3 } ``` Response includes `project_id`. Use the returned ID in subsequent chat requests. ### 6. Set Generation Mode `POST /v1/openapi/mode/set` Switch between fast mode (costs credits, no queue) and unlimited mode (free, may queue). ```bash TIMESTAMP=$(date +%s) && SIGNATURE=$(echo -ne "POST\n/v1/openapi/mode/set\n${TIMESTAMP}" | openssl dgst -sha256 -hmac "$LOVART_SECRET_KEY" | awk '{print $NF}') && curl -s -X POST "https://lgw.lovart.ai/v1/openapi/mode/set" --header "Content-Type: application/json" --header "X-Access-Key: $LOVART_ACCESS_KEY" --header "X-Timestamp: ${TIMESTAMP}" --header "X-Signature: ${SIGNATURE}" --header "X-Signed-Method: POST" --header "X-Signed-Path: /v1/openapi/mode/set" -d @/tmp/lovart_mode.json ``` For fast mode, write to `/tmp/lovart_mode.json`: ```json { "unlimited": false } ``` For unlimited mode, write to `/tmp/lovart_mode.json`: ```json { "unlimited": true } ``` ### 7. Query Generation Mode `POST /v1/openapi/mode/query` ```bash TIMESTAMP=$(date +%s) && SIGNATURE=$(echo -ne "POST\n/v1/openapi/mode/query\n${TIMESTAMP}" | openssl dgst -sha256 -hmac "$LOVART_SECRET_KEY" | awk '{print $NF}') && curl -s -X POST "https://lgw.lovart.ai/v1/openapi/mode/query" --header "Content-Type: application/json" --header "X-Access-Key: $LOVART_ACCESS_KEY" --header "X-Timestamp: ${TIMESTAMP}" --header "X-Signature: ${SIGNATURE}" --header "X-Signed-Method: POST" --header "X-Signed-Path: /v1/openapi/mode/query" -d '{}' ``` ## Available Models Use model names in `tool_config.prefer_tool_categories` or `tool_config.include_tools`: **IMAGE:** `generate_image_midjourney`, `generate_image_nano_banana_pro`, `generate_image_nano_banana_2`, `generate_image_nano_banana`, `generate_image_gpt_image_1_5`, `generate_image_seedream_v5`, `generate_image_seedream_v4_5`, `generate_image_seedream_v4`, `generate_image_imagen_v4`, `generate_image_flux_2_max`, `generate_image_flux_2_pro` **VIDEO:** `generate_video_seedance_v2_0`, `generate_video_seedance_v2_0_fast`, `generate_video_seedance_pro_v1_5`, `generate_video_kling_v3`, `generate_video_kling_v3_omni`, `generate_video_kling_v2_6`, `generate_video_kling_omni_v1`, `generate_video_veo3_1`, `generate_video_veo3_1_fast`, `generate_video_veo3`, `generate_video_sora_v2_pro`, `generate_video_sora_v2`, `generate_video_wan_v2_6`, `generate_video_hailuo_v2_3`, `generate_video_vidu_q2` **3D:** `generate_3d_tripo` **UTILITY:** `upscale_image` ## Common Workflows ### Generate an Image and Retrieve the Result ```bash # Step 1: Send chat request TIMESTAMP=$(date +%s) && SIGNATURE=$(echo -ne "POST\n/v1/openapi/chat\n${TIMESTAMP}" | openssl dgst -sha256 -hmac "$LOVART_SECRET_KEY" | awk '{print $NF}') && curl -s -X POST "https://lgw.lovart.ai/v1/openapi/chat" --header "Content-Type: application/json" --header "X-Access-Key: $LOVART_ACCESS_KEY" --header "X-Timestamp: ${TIMESTAMP}" --header "X-Signature: ${SIGNATURE}" --header "X-Signed-Method: POST" --header "X-Signed-Path: /v1/openapi/chat" -d '{"prompt": "A modern logo design with gradient blue to purple", "project_id": "<your-project-id>"}' # Step 2: Poll status until done (replace <thread-id> from Step 1) TIMESTAMP=$(date +%s) && SIGNATURE=$(echo -ne "GET\n/v1/openapi/chat/status\n${TIMESTAMP}" | openssl dgst -sha256 -hmac "$LOVART_SECRET_KEY" | awk '{print $NF}') && curl -s "https://lgw.lovart.ai/v1/openapi/chat/status?thread_id=<your-thread-id>" --header "X-Access-Key: $LOVART_ACCESS_KEY" --header "X-Timestamp: ${TIMESTAMP}" --header "X-Signature: ${SIGNATURE}" --header "X-Signed-Method: GET" --header "X-Signed-Path: /v1/openapi/chat/status" # Step 3: Get result when status is "done"