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ZeqObserver Agent — C / Embedded

Single-file portable C reference implementation for firmware, IoT, and safety-critical contexts: pacemakers (FDA 21 CFR Part 11 + IEC 62304 evidence), infusion pumps, ventilators, microwaves, fridges, aerospace flight computers (DO-178C trace + ARP4754A), industrial SCADA, robotic controllers, network appliances. Build: cc -O2 -pthread zeq-observer.c -lcurl -lcrypto -o zeq-observer. Public C API: zeq_observer_init / observe / flush / shutdown. Background pthread flushes per Zeqond, file-based outbox for offline replay, heartbeat thread for continuous device proof, OpenSSL SHA-256 for state_hash + AES-GCM for phase-locked sealing, libcurl for HTTPS. Designed to be #include-able (extract zeq-observer.h) and embeddable in larger firmware images.

EndpointGET /zeq-observer.c
Authnone
Rate limitstatic asset
Categorycompute

Parameters​

No parameters.

Returns​

Single-file C source. Compile + link against libcurl + libcrypto + pthread. Same JSON wire format as the JS/Python agents.

Example​

curl -sS \
  "https://zeqsdk.com/zeq-observer.c"

This protocol is a named building block — one of the operations you compose inside a state contract. Call it directly with the request above, or invoke it from a contract that fires on your machine's clock. Browse the whole library at GET /api/protocols; fetch this one at GET /api/protocols/zeq-observer-c.