The objective of this study is to assess whether the Amazon Fund provides financing aimed at transitioning to a low-carbon economy during the period from 2023 to 2025. Specifically, it seeks to examine the role of financing in post-Keynesian economics, relate post-Keynesian financial theory to climate finance, and evaluate whether the Amazon Fund supports climate financing. The research is based on the post-Keynesian economic approach. Methodologically, a qualitative study was conducted, relying on a documentary review and secondary data analysis on the operation and resource allocation of the Amazon Fund. The findings indicate that the fund’s financing structure primarily targets thematic areas such as fire prevention and deforestation control (prioritizing resources for fire departments and monitoring systems), sustainable agro-environmental projects (linked to socio-biodiversity), and territorial restoration and management (focused on restoring degraded areas and managing rural land registration systems). A notable gap in the fund’s strategy is the absence of projects explicitly directed at renewable energy development.