Free quantitative engineering and AI FinOps calculator suite featuring real-time LLM API token pricing models (GPT-5, Claude, DeepSeek), cloud egress estimators, CIDR subnet matrices, and creator economy RPM benchmarks with native /llms.txt.
Stkcraft Time
NAIF/SPICE-aligned astronomical time scales in Rust: UTC, TAI, TT, TDB/ET, GPS, UT1 and SCLK, with LSK/SCLK/EOP
stkcraft.com) is indexed under DevTools & LLM Infra on AgentIndex with a Freemium / Open pricing model and rel="nofollow ugc" outbound link qualification (ecosystem-indexed preview; free maintainer claim available). Machine-readable metadata is available via JSON API and /llms-full.txt.
NAIF/SPICE-aligned astronomical time scales in Rust: UTC, TAI, TT, TDB/ET, GPS, UT1 and SCLK, with LSK/SCLK/EOP kernels, no_std support, WebGeocalc parity and an MCP server. Rust AI/MCP crate (stkcraft-time) discovered via Crates.io and indexed in AgentIndex.