Nuclia

Nuclia is a RAG-as-a-Service / AI search platform (now part of Progress as Progress Agentic RAG). It ingests unstructured data - documents, files, audio, video, web pages and conversations - into Knowledge Boxes, automatically extracting, embedding and indexing it so applications can run hybrid (semantic, keyword, graph) search and get grounded generative answers through a regional REST API.

5 APIs 0 Features

AIRAGSearchKnowledge BaseUnstructured Data

APIs

Nuclia Knowledge Boxes API

Create, configure and inspect Knowledge Boxes - the indexed collections of unstructured data - including counters, label sets, synonyms, entities and model configuration.

Nuclia Resources & Ingestion API

Create, list, read, modify and delete resources, and upload binaries (including TUS resumable uploads and direct Knowledge Box upload) into Nuclia's extraction, embedding and in...

Nuclia Search & Find API

Hybrid search combining semantic, keyword, fulltext and graph search, the find endpoint optimized for RAG context retrieval, plus suggest autocomplete over a Knowledge Box.

Nuclia Ask & Chat (RAG) API

Generative RAG answers grounded in a Knowledge Box - the ask/chat endpoint retrieves context, builds a prompt and returns a cited answer, streamed as newline-delimited JSON / SS...

Nuclia Predict (NUA) API

The Nuclia Understanding API - generative chat/completions, summarize, rephrase, rerank, sentence embeddings and token/NER extraction - authenticated with a NUA key.

Event Specifications

Nuclia Ask / Chat Generative Answer Stream (HTTP + ndjson/SSE)

AsyncAPI 2.6 description of Nuclia's **ask / chat generative answer streaming** surface. Nuclia does not publish a WebSocket API. The only asynchronous / event-style transport d...

ASYNCAPI

Resources

👥

GitHubOrganization

Sources

aid: nuclia
url: https://raw.githubusercontent.com/api-evangelist/nuclia/refs/heads/main/apis.yml
name: Nuclia
kind: company
description: Nuclia is a RAG-as-a-Service / AI search platform (now part of Progress
  as Progress Agentic RAG). It ingests unstructured data - documents, files, audio,
  video, web pages and conversations - into Knowledge Boxes, automatically extracting,
  embedding and indexing it so applications can run hybrid (semantic, keyword, graph)
  search and get grounded generative answers through a regional REST API.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- AI
- RAG
- Search
- Knowledge Base
- Unstructured Data
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.19'
apis:
- aid: nuclia:knowledge-boxes-api
  name: Nuclia Knowledge Boxes API
  tags:
  - Knowledge Boxes
  - Configuration
  - Labels
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.nuclia.dev/docs/api
  baseURL: https://{zone}.nuclia.cloud/api/v1
  properties:
  - url: https://docs.nuclia.dev/docs/management/knowledgebox/
    type: Documentation
  - url: https://docs.nuclia.dev/docs/api
    type: APIReference
  - url: openapi/nuclia-openapi.yml
    type: OpenAPI
  - url: collections/nuclia.postman_collection.json
    type: PostmanCollection
  - url: collections/nuclia.opencollection.json
    type: OpenCollection
  description: Create, configure and inspect Knowledge Boxes - the indexed collections
    of unstructured data - including counters, label sets, synonyms, entities and
    model configuration.
- aid: nuclia:resources-ingestion-api
  name: Nuclia Resources & Ingestion API
  tags:
  - Resources
  - Ingestion
  - Upload
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.nuclia.dev/docs/api
  baseURL: https://{zone}.nuclia.cloud/api/v1
  properties:
  - url: https://docs.nuclia.dev/docs/ingestion/
    type: Documentation
  - url: https://docs.nuclia.dev/docs/api
    type: APIReference
  - url: openapi/nuclia-openapi.yml
    type: OpenAPI
  - url: collections/nuclia.postman_collection.json
    type: PostmanCollection
  - url: collections/nuclia.opencollection.json
    type: OpenCollection
  description: Create, list, read, modify and delete resources, and upload binaries
    (including TUS resumable uploads and direct Knowledge Box upload) into Nuclia's
    extraction, embedding and indexing pipeline.
- aid: nuclia:search-find-api
  name: Nuclia Search & Find API
  tags:
  - Search
  - Find
  - Semantic Search
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.nuclia.dev/docs/rag/search-strategy/
  baseURL: https://{zone}.nuclia.cloud/api/v1
  properties:
  - url: https://docs.nuclia.dev/docs/rag/search-strategy/
    type: Documentation
  - url: https://docs.nuclia.dev/docs/api
    type: APIReference
  - url: openapi/nuclia-openapi.yml
    type: OpenAPI
  - url: collections/nuclia.postman_collection.json
    type: PostmanCollection
  - url: collections/nuclia.opencollection.json
    type: OpenCollection
  description: Hybrid search combining semantic, keyword, fulltext and graph search,
    the find endpoint optimized for RAG context retrieval, plus suggest autocomplete
    over a Knowledge Box.
- aid: nuclia:ask-chat-rag-api
  name: Nuclia Ask & Chat (RAG) API
  tags:
  - Ask
  - Chat
  - RAG
  - Generative
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.nuclia.dev/docs/rag/
  baseURL: https://{zone}.nuclia.cloud/api/v1
  properties:
  - url: https://docs.nuclia.dev/docs/rag/
    type: Documentation
  - url: https://docs.nuclia.dev/docs/api
    type: APIReference
  - url: openapi/nuclia-openapi.yml
    type: OpenAPI
  - url: asyncapi/nuclia-asyncapi.yml
    type: AsyncAPI
  - url: collections/nuclia.postman_collection.json
    type: PostmanCollection
  - url: collections/nuclia.opencollection.json
    type: OpenCollection
  description: Generative RAG answers grounded in a Knowledge Box - the ask/chat
    endpoint retrieves context, builds a prompt and returns a cited answer, streamed
    as newline-delimited JSON / SSE, plus document summarization.
- aid: nuclia:predict-nua-api
  name: Nuclia Predict (NUA) API
  tags:
  - Predict
  - NUA
  - Embeddings
  - Tokens
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.nuclia.dev/docs/nua-api/
  baseURL: https://{zone}.nuclia.cloud/api/v1
  properties:
  - url: https://docs.nuclia.dev/docs/understanding/intro
    type: Documentation
  - url: https://docs.nuclia.dev/docs/nua-api/
    type: APIReference
  - url: openapi/nuclia-openapi.yml
    type: OpenAPI
  - url: collections/nuclia.postman_collection.json
    type: PostmanCollection
  - url: collections/nuclia.opencollection.json
    type: OpenCollection
  description: The Nuclia Understanding API - generative chat/completions, summarize,
    rephrase, rerank, sentence embeddings and token/NER extraction - authenticated
    with a NUA key.
common:
- type: GitHubOrganization
  url: https://github.com/nuclia
- type: LinkedIn
  url: https://www.linkedin.com/company/nuclia
- type: Website
  url: https://nuclia.com/
- type: Documentation
  url: https://docs.nuclia.dev/docs
- type: Plans
  url: plans/nuclia-plans-pricing.yml
- type: RateLimits
  url: rate-limits/nuclia-rate-limits.yml
- type: FinOps
  url: finops/nuclia-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com