API & MCP

Everything a person can do on Reelcraft, a program or AI agent can do with the same inputs and get the identical result.

HTTP API

• GET https://reelcraft.usefulweb.site/api/v1/tools – catalog
• GET https://reelcraft.usefulweb.site/api/v1/tools/{id} – inputs, output schema, examples
• POST https://reelcraft.usefulweb.site/api/v1/tools/{id}/calculate – run a tool
• GET https://reelcraft.usefulweb.site/api/v1/workflows · POST https://reelcraft.usefulweb.site/api/v1/workflows/{id}/run
• OpenAPI 3.1: /openapi.json · /openapi.yaml
• Errors: application/problem+json; 422 includes per-field errors.

Every result contains

inputs (normalised, defaults applied), summary, result (validated against the published schema), units, assumptions, sources, warnings, computedAt and links.

MCP (Model Context Protocol)

• Streamable HTTP endpoint: https://reelcraft.usefulweb.site/mcp – protocol revisions 2026-07-28 (stateless) and 2025-11-25 / 2025-06-18 / 2025-03-26 (initialize handshake).
• Tools: video_cutter_merger, video_converter, vertical_video_reframer, video_compressor, video_to_gif_creator, video_to_audio_extractor, audio_cutter_merger, audio_loudness_normalizer, audio_converter, mp3_tag_cover_editor, subtitle_studio, background_remover, batch_image_resizer, batch_watermark_studio, exif_inspector_cleaner, heic_raw_converter, image_compressor, image_upscaler, svg_optimizer, c2pa_credentials_inspector
• Local stdio connector: node src/mcp-stdio.ts

{
  "mcpServers": {
    "usefulweb": { "type": "http", "url": "https://reelcraft.usefulweb.site/mcp" }
  }
}