BiGapiguides
POST /v1/epub/to-markdown · 1 cent per operation

EPUB → Markdown

Extract an e-book (EPUB) as clean Markdown for reading, summarising or RAG ingestion.

Try it

curl -X POST https://api.bigapi.dev/v1/epub/to-markdown -H 'Authorization: Bearer $KEY' -F 'file=@book.epub' -o book.md

New keys come with 100 free operations, no signup: curl -X POST https://api.bigapi.dev/v1/keys. Failed calls cost nothing.

Parameters

NameMeaning
file requiredE-book in EPUB format to turn into Markdown.
outputmd returns a Markdown file, json returns the Markdown inside a JSON object.
Allowed: md, json
Default: "md"

Result and price

1¢ · 1 cent per operation

Returns text/markdown | application/json. Response headers carry the cost (X-BigAPI-Cost) and notes about your input (X-BigAPI-Warnings).

From an agent (MCP)

Connect BiGapi as an MCP server: https://api.bigapi.dev/mcp (hosted) or npx -y @bigapi/mcp (local). Then ask in plain words; the agent finds epub_to_markdown on its own.