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.
getpeppr
Developer-first Peppol e-invoicing. Send invoices as JSON via a TypeScript SDK or REST API — getpeppr handles UBL/BIS
getpeppr.dev) 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.
Developer-first Peppol e-invoicing. Send invoices as JSON via a TypeScript SDK or REST API — getpeppr handles UBL/BIS 3.0 generation, validation, and Peppol network delivery. Verified native /llms.txt implementation (https://getpeppr.dev/llms.txt). Indexed in AgentIndex for LLM & autonomous agent discovery.