We study cross-domain integrations (JWST, ISS,LHC, GPS) with heterogeneous external APIs. Using adaptersthat model rate limits, latency jitter, schema drift, and outages,we compare naive polling against an attention-based middlewarewith token-bucket rate limiting, circuit breakers, RMS-stylenormalization, caching (TTL), exponential backoff with jitter,and hedged requests. We report success rate, latency (mean,p95), freshness, retry overhead, rate-limit compliance, and … Continue reading Cross-Domain Integrations for Scientific Data Streams with Attention-Based Middleware