#cop

Live official exchange-rate data for the Colombian peso (COP) — the Tasa Representativa del Mercado (TRM), Colombia's official daily USD/COP reference rate set by the financial regulator and published on the government open-data portal. Served as clean JSON, no key, no cache. Get the latest TRM (pesos per dollar and the inverse); look up the TRM in effect on any past date (the TRM stays valid across the weekend it was set, so any calendar date resolves to its effective rate); pull the daily TRM over any date range; or convert an amount between USD and COP at the latest TRM. Read live from Colombia's open-data portal, nothing cached. This is the official Colombian-peso reference rate — distinct from the ECB, BCRA, BCRP and other central-bank feeds and from market mid-rates: Colombia's own legally-binding USD/COP TRM.

api.oanor.com/colombiatrm-api

Heat-pump and refrigeration performance maths as an API, computed locally and deterministically — the efficiency numbers an HVAC engineer, energy auditor or heat-pump installer actually works with. The cop endpoint gives the coefficient of performance and the US EER rating from the thermal capacity and the electrical power: a unit moving 7 kW of heat on 2 kW of electricity has a COP of 3.5 (an EER of 12), meaning 3.5 units of heating or cooling for every unit of electricity — which is why a heat pump beats resistance heating, where the COP is exactly 1. The carnot endpoint gives the unbeatable ideal limit set only by the absolute temperatures — heating = Th ÷ (Th − Tc), cooling = Tc ÷ (Th − Tc) in kelvin, where heating COP always equals cooling COP plus one — and, given a real COP, the second-law efficiency that says how close the machine runs to that ceiling; the smaller the temperature lift, the higher the limit, which is why ground-source and low-temperature systems beat air-source on a cold day. The capacity endpoint turns electrical power and a COP into the delivered heating or cooling in kilowatts, BTU per hour and tons of refrigeration — the extra energy over the electricity is pulled from the outside air, ground or water. Everything is computed locally and deterministically, so it is instant and private. Ideal for HVAC and refrigeration engineers, energy auditors, heat-pump and building-performance tools, and sustainability dashboards. Pure local computation — no key, no third-party service, instant. Estimates at the stated conditions — real COP falls as the temperature lift rises. 3 compute endpoints. For room sizing use an HVAC BTU API; for moist-air properties use a psychrometric API.

api.oanor.com/heatpump-api

Heat-engine efficiency and coefficient of performance as an API, computed locally and deterministically. The efficiency endpoint gives the Carnot maximum efficiency of any heat engine working between two temperatures, η = 1 − Tc/Th (in kelvin) — the absolute upper limit no real engine can beat — and, given a heat input, the maximum work it could produce and the heat it must reject. The heat-pump endpoint gives the Carnot coefficient of performance of a heat pump, COP = Th/(Th − Tc), and of a refrigerator or air conditioner, COP = Tc/(Th − Tc), and the heat moved for a given work input. The engine endpoint analyses a real engine from its heat balance: from any two of the heat input, the work output, the efficiency or the heat rejected it returns the rest using η = W/Qh and Qc = Qh − W, and — given the reservoir temperatures — compares it to the Carnot limit and reports the second-law (exergy) efficiency. Temperatures accept kelvin, Celsius or Fahrenheit. Everything is computed locally and deterministically, so it is instant and private. Ideal for thermodynamics-education tools, engine, turbine and HVAC design, refrigeration and heat-pump apps, and energy-systems software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is heat-engine and refrigeration-cycle efficiency; for sensible heat use a specific-heat API and for heat-exchanger LMTD use a heat-exchanger API.

api.oanor.com/carnot-api