Topk

aid: topk
name: Topk
description: TopK is a search engine for accuracy-critical AI applications, delivering hybrid search, multi-vector (late-interaction)
  retrieval, dense and sparse vector search, BM25 keyword search, custom ranking, document parsing, and grounded question
  answering through a single API. Built on object storage for roughly 10x lower cost and effectively unlimited scale, TopK
  exposes a Collection API for structured document storage and querying, a Dataset API for unstructured document ingestion,
  semantic search, and evidence-backed answers, and a Management API for datasets and collections. It ships official Python,
  JavaScript, Rust, and SQL (PostgreSQL-wire) SDKs, a Homebrew-installable CLI, and a hosted MCP server so AI agents can query
  private data with natural language. TopK is developed by topk-io and is a portfolio company of Earlybird.
url: https://raw.githubusercontent.com/api-evangelist/topk/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- earlybird
x-tier: stub
x-tier-reason: portfolio-lead
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 18
  pass: local-v1
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/topk.png
tags:
- Company
- Search
- Vector Search
- Hybrid Search
- Multi-Vector Retrieval
- Semantic Search
- BM25
- Retrieval
- RAG
- Question Answering
- AI Infrastructure
- Embeddings
- MCP
apis:
- aid: topk:collection-api
  name: TopK Collection API
  description: Structured document store and query surface. Create collections with typed, indexed fields (keyword_index,
    semantic_index, vector index), upsert/update/delete documents by `_id`, and run hybrid queries that combine dense vector,
    multi-vector, sparse vector, BM25 keyword search, and metadata filtering in a single request.
  humanURL: https://docs.topk.io/collections/query
  baseURL: https://elastica.api.topk.io
  tags:
  - Collections
  - Query
  - Hybrid Search
  - Documents
  properties:
  - type: Documentation
    url: https://docs.topk.io/collections/query
  - type: APIReference
    url: https://docs.topk.io/sdk/topk-py
- aid: topk:dataset-api
  name: TopK Dataset API
  description: Unstructured document ingestion, semantic search, and grounded question answering. Upload document files (PDF,
    Markdown, HTML, and more) to a dataset, retrieve the most relevant passages, and get evidence-backed answers with citations.
  humanURL: https://docs.topk.io/datasets/search
  baseURL: https://elastica.api.topk.io
  tags:
  - Datasets
  - Ingest
  - Ask
  - RAG
  properties:
  - type: Documentation
    url: https://docs.topk.io/datasets/search
- aid: topk:management-api
  name: TopK Management API
  description: Create, list, get, update, and delete datasets and collections that back TopK search and retrieval.
  humanURL: https://docs.topk.io/collections/manage
  baseURL: https://elastica.api.topk.io
  tags:
  - Management
  - Collections
  - Datasets
  properties:
  - type: Documentation
    url: https://docs.topk.io/collections/manage
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DeveloperPortal
  url: https://docs.topk.io
- type: Documentation
  url: https://docs.topk.io
- type: APIReference
  url: https://docs.topk.io/sdk/topk-py
- type: GettingStarted
  url: https://docs.topk.io/introduction
- type: Blog
  url: https://www.topk.io/blog
- type: GitHubOrganization
  url: https://github.com/topk-io
- type: Pricing
  url: https://www.topk.io/pricing
- type: SignUp
  url: https://console.topk.io
- type: Login
  url: https://console.topk.io
- type: StatusPage
  url: https://status.topk.io
- type: TermsOfService
  url: https://topk.io/terms-of-service
- type: PrivacyPolicy
  url: https://topk.io/privacy-policy
- type: Compliance
  url: https://trust.topk.io
- type: TrustCenter
  url: security/topk-trust-center.yml
- type: Security
  url: https://topk.io/security
- type: Packages
  url: packages/topk-packages.yml
- type: SDKs
  url: packages/topk-packages.yml
- type: CLI
  url: cli/topk-cli.yml
- type: MCPServer
  url: mcp/topk-mcp.yml
- type: LLMsTxt
  url: llms/topk-llms.txt
- type: WellKnown
  url: well-known/topk-well-known.yml
- type: SecurityTxt
  url: well-known/topk-security.txt
- type: Authentication
  url: authentication/topk-authentication.yml
- type: Lifecycle
  url: lifecycle/topk-lifecycle.yml
- type: ChangeLog
  url: changelog/topk-changelog.yml
- type: Conventions
  url: conventions/topk-conventions.yml
- type: DataModel
  url: data-model/topk-data-model.yml
- type: Conformance
  url: conformance/topk-conformance.yml
- type: DomainSecurity
  url: security/topk-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/topk-vulnerability-disclosure.yml
- type: AgentSkill
  url: skills/_index.yml