The original title is: "I built 3 free APIs for LLM developers — here's what I shipped and why"

Short summary

Author built three free utility APIs for LLM developers: JSON repair (fixes malformed output that breaks JSON.parse), Discord webhook shield (encrypts URLs to prevent source code exposure), and QR code generator (PNG/SVG with custom colors, 30% error correction). All hosted on RapidAPI with free tiers (500/month for JSON and QR, 200/month for Discord). Built with FastAPI, local processing engines, and Groq AI as fallback.

• •Built three free APIs solving common LLM developer problems: JSON repair, Discord webhook security, QR code generation
• •All available on RapidAPI with generous free tiers; no per-request AI costs through local processing fallback design
• •Tech stack: FastAPI + open-source libraries (json-repair, qrcode, Pillow) with Groq AI for edge cases

Generated with AI, which can make mistakes.