Space Frontiers

Machine Library API

REST API over the Machine Library corpus: hybrid full-text search across the documents and social indexes (POST /v2/search/), similarity search, token-bounded document fetch by ID or canonical URI (DOI/arXiv/PMID/ISBN), in-document passage search via text_filter, original PDF/EPUB/DJVU streaming with byte ranges, retrieval-augmented conversation turns (JSON or SSE stream), PDF/EPUB/DJVU-to-Markdown recognition jobs, and a Stripe MPP prepaid-credit top-up. Authenticated with an X-Api-Key header or the same key / an OAuth 2.0 access token as a Bearer token; billed per request from a prepaid USD balance.

GitHub OpenAPI

Operations 19

POST /v2/search/ Search across one or more Machine Library indexes. #
POST /v2/search/feedback #
GET /v2/documents/by-uri/{uri} Fetch a document by canonical URI, or search inside it with `text_filter`. #
GET /v2/documents/{document_id} Fetch a document and its public metadata by Machine Library document ID. #
POST /v2/search/similar Find documents similar to a source document. #
GET /v2/conversations/ List conversations owned by the authenticated user. #
POST /v2/conversations/ Run a retrieval-augmented conversation turn. #
POST /v2/conversations/stream Run a conversation turn and stream newline-delimited progress events. #
GET /v2/conversations/{slug} Fetch a conversation and all recorded request/response steps. #
DELETE /v2/conversations/{slug} Delete a conversation owned by the authenticated user. #
PUT /v2/conversations/{conversation_id_or_slug}/edit-step/{step_id} Replace a request step and recompute the conversation from that point. #
PUT /v2/conversations/{conversation_id_or_slug}/edit-step/{step_id}/stream Replace a request step and stream the recomputation as newline-delimited events. #
POST /v1/recognitions Submit a document for recognition #
GET /v1/recognitions/{id} Job status #
GET /v1/recognitions/{id}/report Structured recognition report #
GET /v1/recognitions/{id}/result Recognized Markdown #
GET /v2/downloads/{filename} Original document by ID #
GET /v2/downloads/by-uri/{uri} Original document by URI #
POST /v2/payments/mpp/top-up Fund the authenticated account balance using Stripe MPP #

Documentation

📖
Documentation
https://machinelibrary.ai/docs/api
📖
APIReference
https://machinelibrary.ai/docs/api/reference
📖
Authentication
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/authentication/machinelibrary-ai-authentication.yml
📖
RateLimits
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/rate-limits/machinelibrary-ai-rate-limits.yml

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/openapi/machinelibrary-ai-openapi.yml
⚙
OpenAPI
https://machinelibrary.ai/openapi.json
⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/openapi/machinelibrary-ai-recognition-openapi.yml

Other Resources

🔗
OAuthScopes
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/scopes/machinelibrary-ai-scopes.yml
🔗
Conventions
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/conventions/machinelibrary-ai-conventions.yml
🔗
Idempotency
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/conventions/machinelibrary-ai-conventions.yml
🔗
ErrorCatalog
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/errors/machinelibrary-ai-problem-types.yml
🔗
DataModel
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/data-model/machinelibrary-ai-data-model.yml
🔗
Overlay
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/overlays/machinelibrary-ai-openapi-overlay.yaml
🔗
Plans
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/plans/machinelibrary-ai-plans-pricing.yml
🔗
Pricing
https://api.machinelibrary.ai/v1/pricing
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/apis.yml

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OpenAPI Specification

machinelibrary-ai-openapi.yml Raw ↑ 
openapi: 3.1.0
info:
  title: Machine Library API
  description: 'Search, retrieve, and synthesize scholarly and public-interest documents through Machine Library, the search
    and AI product by Space Frontiers Company. Document recognition endpoints (`/v1/recognitions`: PDF, EPUB, and DJVU to
    structured Markdown) share this host and are described at `/v1/recognitions/docs/openapi.json`; the site reference at
    https://machinelibrary.ai/docs/api/reference presents both specs merged.'
  license:
    name: MIT
    identifier: MIT
  version: 0.1.0
servers:
- url: https://api.machinelibrary.ai
  description: Machine Library


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# Full source: https://raw.githubusercontent.com/api-evangelist/machinelibrary-ai/refs/heads/main/openapi/machinelibrary-ai-openapi.yml