postcache API and MCP reference: upload, check, convert and delete media for Instagram, Threads and Facebook.
Base URL https://postcache.dev · OpenAPI 3.1: /openapi.json · for agents: /llms.txt · Instagram API errors Every request sends Authorization: Bearer pclive… . Send the file as the raw body and name the platform it is for. For files that already live somewhere public. Add convert=crop or convert=pad (query parameter, or "convert" in the JSON body). The answer is 202 with "status": "converting" . dry_run=1 checks the file and stores nothing.
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postcache is aPI docs. postcache API and MCP reference: upload, check, convert and delete media for Instagram, Threads and Facebook.
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