Stop Sending and Sharing Broken API Requests
REST clients and AI tools let you send anything and fail later. Blockforger enforces API rules before requests are sent, so you don't debug 400s, retries, or silent data corruption.
Built for Strict or Evolving API Schemas
Migrate from Postman or Swagger to Blockforger in 30 seconds. No manual data entry required—just paste once and get guaranteed-valid payloads.
Real-Time Schema Validation
Catches missing fields, wrong data types, pattern mismatches, and format errors as you edit. Break a payload and errors auto-detect instantly before anything is sent.
Drag-and-Drop Data Entry
Visual interface for entering data into complex API requests. Drag blocks to add nested objects and arrays without manual JSON typing or missing brackets.
Universal 30-Second Imports
Instant bootstrap from Swagger, OpenAPI specs, GraphQL, or Postman collections. Your existing documentation becomes an interactive workspace in seconds.
AI Pre-Fills & Auto-Fix
Describe your data in plain English and let AI generate complete, validated forms. Paste malformed JSON and AI repairs field names, types, and structures automatically.
How It Works
A streamlined workflow from schema definition to verified request.
Ingest Schema
Load an OpenAPI/Swagger contract, Postman collection, or JSON schema. Blockforger deconstructs endpoints and payloads into structured blueprint blocks instantly.
Visual Construction
Fill fields with drag-and-drop ease or AI assistance. See relationships between nested structures clearly without syntax errors.
Verify Constraints
The client validates type constraints, formats, and required fields in real time before making a request, eliminating 400 errors.
Proxy Call
Connect straight to localhost or private staging endpoints using the built-in CORS bypass, keeping your testing loops fast and secure.
Share State
Create persistent, URL-serialized links that preserve the entire block-workspace configuration for team reviews and bug reproduction.
Postman is fine for sending requests. It breaks down when schemas get complex.
In Postman, every request is something you manually assemble and hope is correct. Blockforger enforces API rules before requests are sent, so you never debug 400s, retries, or silent data corruption.
See Live Validation Demo