REST API
Search, match, and retrieve authorized LCA dataset information through standard HTTP requests.
HiQLCD API Services
Search and match LCA datasets, retrieve authorized data and GWP100 results, and integrate them into your existing workflows.
Find an LCA dataset
Search for a material within a selected database and system model.
POST /api/cortex/search cURL
curl -X POST "https://x.hiqlcd.com/api/cortex/search" \ -H "X-API-Key: $HIQ_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "query": "stainless steel 304", "sources": "HiQLCD:1.5.0", "system_model": "cut_off", "stream": false }'- query
- The material or process you want to find.
- sources
- The database and version to search.
- system_model
- The requested modelling approach.
Steel billet, BOF, 304 stainless steel
GWP100
6.358 kg CO2-eq
Illustrative example · Not a live API callBuilt for the way you use LCA data.
From material descriptions to usable LCA data.
Search datasets, review their context and bring GWP100 results into your workflow.
Find candidates from a material or process description.
REST APIInput
Material or process
stainless steel 304
- Data source
- HiQLCD
- Version
- 1.5.0
- System model
- Cut-off
Output
Candidate dataset
Steel billet, BOF, 304 stainless steel
- Reference product
- Steel billet, 304 stainless steel
- Geography
- China
- Reference unit
- kg
- Data source / version
- HiQLCD / 1.5.0
- System model
- Cut-off
curl -X POST "https://x.hiqlcd.com/api/cortex/search" \ -H "X-API-Key: $HIQLCD_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "query": "stainless steel 304", "sources": "HiQLCD:1.5.0", "system_model": "cut_off", "stream": false}'Retrieve a selected dataset and its available GWP100 value.
MCP toolInput
Selected dataset
1,1-difluoroethane, HFC-152a, at plant
- Dataset key
- ZDEfY2RhN2QyYWQtMGRmNS0zMmNjLTk0NWItNDlkOWNiMDEwODk1HzIwMjUfREVGQVVMVA
- Data source / version
- BAFU / 2025
- System model
- DEFAULT
Output
Dataset details
1,1-difluoroethane, HFC-152a, at plant
- Data source / version
- BAFU / 2025
- Geography
- Switzerland (CH)
- Reference unit
- kg
- System model
- DEFAULT
GWP100
4.7524kg CO2 eq / kg
curl -X POST "https://x.hiqlcd.com/api/cortex/mcp" \ -H "X-API-Key: $HIQLCD_API_KEY" \ -H "Content-Type: application/json" \ -H "Accept: application/json, text/event-stream" \ -d '{ "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "lookup_datasets", "arguments": { "dataset_keys": "ZDEfY2RhN2QyYWQtMGRmNS0zMmNjLTk0NWItNDlkOWNiMDEwODk1HzIwMjUfREVGQVVMVA" } }}'Data Coverage & Outputs
Access the LCA data your workflow needs.
01
Available data sources
Explore datasets from HiQLCD and other available databases. Database availability depends on the API service and your authorization.
02
What you can retrieve
Dataset information, including geography and system model
GWP100 results for authorized datasets
Available fields and results depend on the data source and your authorization.
Choose how to connect
Integrate LCA data into existing applications or connect AI assistants and agents to specialized data tools.
MCP
Enable AI assistants and agents to search datasets and retrieve authorized LCA information.
AG-UI
Connect agent backends to user interfaces and stream updates throughout interactions.
A2A
Enable AI agents to exchange information and coordinate tasks across applications.
Start building with HiQ APIs
Identify your data needs
Identify the databases, target materials and impact indicators you need, and whether the data is for internal use or services offered to third parties.
Arrange access & API credentials
Confirm the scope of authorization and access process, and obtain the corresponding API key.
Make your first API request
Use an example from the documentation to search and check the fields returned.
Integrate into your application
Complete data mapping, use the results, and implement error handling and authorization checks.
