{"server":{"$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","name":"io.github.chrischall/gemini-mcp","description":"Generate and edit images with Google Gemini (Nano Banana / Nano Banana Pro) image models.","repository":{"url":"https://github.com/chrischall/gemini-mcp","source":"github"},"version":"2.3.4","packages":[{"registryType":"npm","identifier":"@chrischall/gemini-mcp","version":"2.3.4","transport":{"type":"stdio"},"environmentVariables":[{"description":"Your Google Gemini API key (aistudio.google.com/apikey)","format":"string","isSecret":true,"name":"GEMINI_API_KEY"},{"description":"Override the default image model (default: gemini-3.1-flash-image)","format":"string","name":"GEMINI_IMAGE_MODEL"},{"description":"Default directory for generated images (default: current working directory)","format":"string","name":"GEMINI_OUTPUT_DIR"},{"description":"Directory to resolve bare input-image filenames against","format":"string","name":"GEMINI_INPUT_DIR"},{"description":"Restrict local-file uploads to the Gemini Files API to these directories (path.delimiter-separated; unset = unrestricted)","format":"string","name":"GEMINI_UPLOAD_DIR"},{"description":"Restrict local reference images (images / image paths sent to Gemini) to these directories (path.delimiter-separated), plus GEMINI_OUTPUT_DIR. Unset: GEMINI_UPLOAD_DIR applies; if that is unset too, unrestricted locally, and $MCP_DATA_DIR/uploads when MCP_DATA_DIR is set (hosted)","format":"string","name":"GEMINI_REFERENCE_DIR"},{"description":"Upstream request timeout in ms (default: 60000, or 120000 for image_size: \"4K\"); each generation tool also takes a per-call timeout_ms","format":"string","name":"GEMINI_TIMEOUT_MS"},{"description":"Progress-notification cadence in ms while a generation runs (default: 10000; 0 disables) — keeps MCP hosts that reset their timeout on progress from timing out long generations","format":"string","name":"GEMINI_HEARTBEAT_MS"},{"description":"How long to wait out interactions-store lag when a chained call 404s (default: 120000; 0 disables retrying)","format":"string","name":"GEMINI_CHAIN_RETRY_MS"},{"description":"When set, emit heartbeat diagnostics to stderr. Off by default.","format":"string","name":"GEMINI_DEBUG"},{"description":"Override/extend the shipped USD-per-1M-token rates used by gemini_token_usage's cost estimate, e.g. {\"gemini-3-pro-image\":{\"input\":2,\"text_output\":12,\"image_output\":120}}. Malformed JSON is ignored (a bad card must not fail generations).","format":"string","name":"GEMINI_RATE_CARD"}]}]},"_meta":{"io.modelcontextprotocol.registry/official":{"status":"active","statusChangedAt":"2026-10-09T23:26:12.603242Z","publishedAt":"2026-10-09T23:26:12.603242Z","updatedAt":"2026-10-09T23:26:12.603242Z","isLatest":true}}}