{"name":"Tunc Art","description":"Private file storage for a person's agents: save, open and delete files on their Tunc account. Send a message with no skill call to get every skill's full description and inputSchema, as an MCP agent gets them.","version":"1.0.0","provider":{"organization":"TUNC LLC","url":"https://tuncart.com"},"documentationUrl":"https://tuncart.com/docs","iconUrl":"https://tuncart.com/apple-touch-icon.png","supportedInterfaces":[{"url":"https://a2a.tuncart.com","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"capabilities":{"streaming":false,"pushNotifications":false,"extendedAgentCard":false},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"skills":[{"id":"art_read","name":"Open files","description":"List the owner's files and open one.","tags":["files","read"],"examples":["What files have I saved?","{\"skill\":\"art_read\",\"arguments\":{\"operation\":\"list\"}}","Find the PDFs I saved this month.","{\"skill\":\"art_read\",\"arguments\":{\"operation\":\"list\",\"mime_prefix\":\"application/pdf\",\"created_after\":\"2026-11-01\"}}","Which spreadsheets and decks do I have, biggest first?","{\"skill\":\"art_read\",\"arguments\":{\"operation\":\"list\",\"kind\":\"workbook,presentation\",\"sort\":\"largest\"}}","Find the file called Q4 report.","{\"skill\":\"art_read\",\"arguments\":{\"operation\":\"list\",\"title\":\"Q4 report\"}}","Open the Q4 report and read it to me.","{\"skill\":\"art_read\",\"arguments\":{\"operation\":\"get\",\"artifact_id\":\"<artifact_id from art_read list>\",\"include_content\":true}}","Read pages 2 to 3 of that PDF.","{\"skill\":\"art_read\",\"arguments\":{\"operation\":\"get\",\"artifact_id\":\"<artifact_id from art_read list>\",\"include_content\":true,\"pages\":\"2-3\"}}"]},{"id":"art_write","name":"Save a file","description":"Save a file to the owner's Tunc Art.","tags":["files","write"],"examples":["Save this report as a Markdown file I can share.","{\"skill\":\"art_write\",\"arguments\":{\"operation\":\"create\",\"name\":\"q4-report.md\",\"mime_type\":\"text/markdown\",\"text\":\"# Q4 report\\n\\nRevenue grew 12%.\"}}","Save this chart picture.","{\"skill\":\"art_write\",\"arguments\":{\"operation\":\"create\",\"name\":\"chart.png\",\"mime_type\":\"image/png\",\"content_base64\":\"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAAAABJRU5ErkJggg==\"}}","Save these results as a CSV.","{\"skill\":\"art_write\",\"arguments\":{\"operation\":\"create\",\"name\":\"results.csv\",\"mime_type\":\"text/csv\",\"text\":\"item,qty\\npens,12\\n\"}}","Save this 20 MB recording.","{\"skill\":\"art_write\",\"arguments\":{\"operation\":\"create\",\"mode\":\"begin\",\"name\":\"call.m4a\",\"mime_type\":\"audio/mp4\",\"byte_count\":20971520}}","Finish saving the recording after uploading its bytes.","{\"skill\":\"art_write\",\"arguments\":{\"operation\":\"create\",\"mode\":\"complete\",\"upload_id\":\"<upload_id from mode=begin>\",\"byte_count\":20971520}}"]},{"id":"art_delete","name":"Delete a file","description":"Delete one of the owner’s files.","tags":["files","delete"],"examples":["Delete the draft report I saved earlier.","{\"skill\":\"art_delete\",\"arguments\":{\"artifact_id\":\"<artifact_id from art_write or art_read>\"}}"]}],"securitySchemes":{"apiKey":{"httpAuthSecurityScheme":{"scheme":"Bearer","description":"A Tunc API key from tunchub.com/account/keys/new"}},"oauth":{"oauth2SecurityScheme":{"description":"Sign in with Tunc and ask for resource=https://a2a.tuncart.com (tokens for the MCP server are refused here).","oauth2MetadataUrl":"https://core.tunc.ai/.well-known/oauth-authorization-server","flows":{"authorizationCode":{"authorizationUrl":"https://core.tunc.ai/oauth/authorize","tokenUrl":"https://core.tunc.ai/oauth/token","pkceRequired":true,"scopes":{"orb.read":"Read Tunc Orb","art.read":"Open files","art.write":"Save files","art.delete":"Delete files"}}}}},"device":{"oauth2SecurityScheme":{"description":"Sign in with Tunc and ask for resource=https://a2a.tuncart.com (tokens for the MCP server are refused here). For agents without a browser.","oauth2MetadataUrl":"https://core.tunc.ai/.well-known/oauth-authorization-server","flows":{"deviceCode":{"deviceAuthorizationUrl":"https://core.tunc.ai/oauth/device_authorization","tokenUrl":"https://core.tunc.ai/oauth/token","scopes":{"orb.read":"Read Tunc Orb","art.read":"Open files","art.write":"Save files","art.delete":"Delete files"}}}}}},"securityRequirements":[{"schemes":{"apiKey":{"list":[]}}},{"schemes":{"oauth":{"list":["orb.read"]}}},{"schemes":{"device":{"list":["orb.read"]}}}]}