DuckDuckGo is an independent online-privacy company best known for its tracker-free search engine and the DuckDuckGo Browser (iOS, Android, macOS, Windows). It operates the public Instant Answer API at api.duckduckgo.com (free, JSON/XML), the Duck.ai anonymous AI-chat proxy at duck.ai (routes to Anthropic Claude, OpenAI GPT, Meta Llama, Mistral models without storing or training on prompts), the Tracker Radar open dataset (CC BY-NC-SA), Email Protection (@duck.com forwarding addresses), and Privacy Pro (VPN + Personal Information Removal + Identity Theft Restoration).
The DuckDuckGo Instant Answer API returns the boxed answer that appears above DuckDuckGo search results - topic summaries (largely sourced from Wikipedia / structured sites), de...
Duck.ai is DuckDuckGo's anonymizing proxy in front of third-party LLMs. Free tier currently includes Anthropic Claude 4.5 Haiku, Meta Llama 4 Scout, Mistral Small 3 24B, OpenAI ...
Tracker Radar is the open dataset that powers DuckDuckGo's tracker and fingerprinting protection. It is a JSON corpus of the most common third-party domains on the web, with met...
The !bang system - in place since 2008 and now spanning thousands of destinations - lets a query like "!w filter bubble" 302-redirect to the destination site's own search (Wikip...
aid: duckduckgo
url: https://raw.githubusercontent.com/api-evangelist/duckduckgo/refs/heads/main/apis.yml
name: DuckDuckGo
kind: company
description: DuckDuckGo is an independent online-privacy company best known for its tracker-free search engine and the DuckDuckGo
Browser (iOS, Android, macOS, Windows). It operates the public Instant Answer API at api.duckduckgo.com (free, JSON/XML),
the Duck.ai anonymous AI-chat proxy at duck.ai (routes to Anthropic Claude, OpenAI GPT, Meta Llama, Mistral models without
storing or training on prompts), the Tracker Radar open dataset (CC BY-NC-SA), Email Protection (@duck.com forwarding addresses),
and Privacy Pro (VPN + Personal Information Removal + Identity Theft Restoration).
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Search
- Privacy
- Browser
- AI Chat
- Email Protection
- VPN
- Trackers
- Identity
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.19'
apis:
- aid: duckduckgo:instant-answer-api
name: DuckDuckGo Instant Answer API
humanURL: https://duckduckgo.com/api
baseURL: https://api.duckduckgo.com
tags:
- Search
- Instant Answer
- Public API
- Free
description: The DuckDuckGo Instant Answer API returns the boxed answer that appears above DuckDuckGo search results - topic
summaries (largely sourced from Wikipedia / structured sites), definitions, categories, disambiguations, and !bang redirects.
It is a free, key-less GET endpoint that returns JSON (default), JSON-P (via callback) or XML. It does not return the
DuckDuckGo search-results listing itself; it returns only zero-click / instant-answer payloads (Abstract, Answer, Definition,
RelatedTopics, Results, Redirect for bangs, plus Image/Heading/Type metadata). Attribution to DuckDuckGo is required when
displayed.
properties:
- type: Documentation
url: https://duckduckgo.com/api
- type: OpenAPI
url: openapi/instant-answer-openapi.yml
- type: Examples
url: examples/
- type: Capabilities
url: capabilities/shared/instant-answer-capabilities.yaml
- type: SpectralRules
url: rules/instant-answer-rules.yml
- type: JSONSchema
url: json-schema/instant-answer-response-schema.json
- type: JSONLD
url: json-ld/duckduckgo-context.jsonld
- type: Pricing
url: https://duckduckgo.com/api
- aid: duckduckgo:duck-ai
name: Duck.ai Anonymous AI Chat
humanURL: https://duck.ai/
baseURL: https://duck.ai
tags:
- AI Chat
- LLM Proxy
- Privacy
- Anonymous
description: Duck.ai is DuckDuckGo's anonymizing proxy in front of third-party LLMs. Free tier currently includes Anthropic
Claude 4.5 Haiku, Meta Llama 4 Scout, Mistral Small 3 24B, OpenAI GPT-4o mini / GPT-5 mini / gpt-oss-120b. Duck.ai Plus
adds GPT-4o, GPT-5.2, Claude Sonnet 4.5, Llama 4 Maverick. Duck.ai Pro adds Claude Opus 4.6, higher reasoning effort and
2x usage limits. DuckDuckGo strips IP / identifiers before forwarding to upstream model providers and does not retain
prompts or train on them. There is no public REST API; access is via the web UI and the in-browser integration in DuckDuckGo
Browser.
properties:
- type: Documentation
url: https://duckduckgo.com/duckduckgo-help-pages/duckai/
- type: Portal
url: https://duck.ai/
- type: Pricing
url: plans/duckduckgo-plans-pricing.yml
- type: Capabilities
url: capabilities/shared/duck-ai-capabilities.yaml
- aid: duckduckgo:tracker-radar
name: DuckDuckGo Tracker Radar Dataset
humanURL: https://github.com/duckduckgo/tracker-radar
baseURL: https://raw.githubusercontent.com/duckduckgo/tracker-radar/main/
tags:
- Trackers
- Open Data
- Privacy Dataset
- JSON
description: Tracker Radar is the open dataset that powers DuckDuckGo's tracker and fingerprinting protection. It is a JSON
corpus of the most common third-party domains on the web, with metadata covering behavior, classification, ownership,
prevalence, fingerprinting, cookies, privacy policies, and performance. Distributed under Creative Commons BY-NC-SA 4.0
(commercial licensing available on request). Files are addressable as raw JSON under /domains in the GitHub repo, so it
is consumable as a static read-only "data API" over HTTPS.
properties:
- type: SourceCode
url: https://github.com/duckduckgo/tracker-radar
- type: License
url: https://creativecommons.org/licenses/by-nc-sa/4.0/
- type: JSONSchema
url: json-schema/tracker-radar-domain-schema.json
- type: Examples
url: examples/tracker-radar-domain-example.json
- aid: duckduckgo:bang-redirector
name: DuckDuckGo !Bang Redirector
humanURL: https://duckduckgo.com/bangs
baseURL: https://duckduckgo.com/
tags:
- Search
- Redirect
- Bang
description: The !bang system - in place since 2008 and now spanning thousands of destinations - lets a query like "!w filter
bubble" 302-redirect to the destination site's own search (Wikipedia in that example). When called via the Instant Answer
API, a bang query returns a Redirect field with the target URL rather than performing the redirect, so it can be used
programmatically as a normalized "search-on-other-site" router.
properties:
- type: Documentation
url: https://duckduckgo.com/bangs
- type: Submission
url: https://duckduckgo.com/newbang
common:
- type: Website
url: https://duckduckgo.com/
- type: Portal
url: https://duckduckgo.com/duckduckgo-help-pages/
- type: Blog
url: https://spreadprivacy.com/
- type: BlogRSS
url: https://spreadprivacy.com/rss/
- type: GitHubOrganization
url: https://github.com/duckduckgo
- type: SourceCode
url: https://github.com/duckduckgo
- type: Browser
title: DuckDuckGo Browser
url: https://duckduckgo.com/app
- type: AIChat
title: Duck.ai
url: https://duck.ai/
- type: EmailProtection
url: https://duckduckgo.com/email/
- type: PrivacyPro
url: https://duckduckgo.com/privacy-pro
- type: PrivacyPolicy
url: https://duckduckgo.com/privacy
- type: Plans
url: plans/duckduckgo-plans-pricing.yml
- type: RateLimits
url: rate-limits/duckduckgo-rate-limits.yml
- type: FinOps
url: finops/duckduckgo-finops.yml
- type: Vocabulary
url: vocabulary/duckduckgo-vocabulary.yml
- type: JSONLD
url: json-ld/duckduckgo-context.jsonld
- type: LlmsText
url: https://duck.ai/llms.txt
integrations:
- name: Apple Safari Intelligent Tracking Prevention (uses tracker data feeds)
- name: Mozilla Firefox (DuckDuckGo as default search option)
- name: Brave Browser (DuckDuckGo selectable as default search)
- name: Tor Browser (DuckDuckGo as default search)
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com