name: SiftingIO
description: >-
  Cross-asset market data APIs covering US equities, forex, cryptocurrency, DeFi/on-chain, commodities,
  and SEC/EDGAR fundamentals, aggregated across venues and normalized into one JSON schema so every asset
  class shares the same fields, auth model and integration flow. Delivered over REST (37 operations under a
  public OpenAPI 3.1 contract), a WebSocket stream described by a public AsyncAPI 3.0 contract, and a
  documented FIX 4.4 market-data feed. Fundamentals cover filings, filing-text extraction and risk-factor
  diffs, XBRL financials, ratios, insiders, ownership and 13F holdings; reference data covers market status,
  hours and holiday calendars; derived data covers technical signals and on-chain TVL. Official Go, Python
  and JavaScript SDKs, an open-source (locally-run) MCP server with 36 tools, and a provider-published agent
  ruleset. Operated by SaltingIO LLC, a Wyoming company; explicitly not a broker, exchange or trading venue.
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://sifting.io/logo.svg
url: https://raw.githubusercontent.com/api-evangelist/siftingio/refs/heads/main/apis.yml
created: '2026-08-17'
modified: '2026-08-17'
specificationVersion: '0.23'
tags:
  - Financial market data
  - Stocks/equities
  - Forex
  - Cryptocurrency
  - DeFi/on-chain
  - Commodities
  - SEC Filings
  - XBRL
  - Fundamentals
  - Fintech
  - Quant/trading infrastructure
  - Real-Time Streaming
  - WebSocket
  - FIX
  - Financial Data
  - Market Data
  - Stocks
  - DeFi
  - Real-Time
  - REST API
  - MCP Server
  - agent-native
tags_raw:
  - Financial market data
  - Stocks/equities
  - Forex
  - Cryptocurrency
  - DeFi/on-chain
  - Commodities
  - SEC filings
  - XBRL
  - Fundamentals
  - Fintech
  - Quant/trading infrastructure
  - Real-time streaming
  - WebSocket
  - FIX
  - financial data
  - market data
  - stocks
  - forex
  - cryptocurrency
  - DeFi
  - commodities
  - real-time
  - websocket
  - REST API
  - MCP server
  - agent-native
apis:
- name: SiftingIO Live Stream
  description: >-
    WebSocket streaming API for live market data, described by an AsyncAPI 3.0 contract. Also offers a
    documented FIX API.
  humanURL: https://sifting.io/docs/fix-api
  baseURL: wss://stream.sifting.io/ws/v1
  tags:
  - Financial market data
  - Stocks/equities
  - Forex
  - Cryptocurrency
  - DeFi/on-chain
  - Commodities
  - SEC Filings
  - XBRL
  - Fundamentals
  - Fintech
  - Quant/trading infrastructure
  - Real-Time Streaming
  - WebSocket
  - FIX
  tags_raw:
  - Financial market data
  - Stocks/equities
  - Forex
  - Cryptocurrency
  - DeFi/on-chain
  - Commodities
  - SEC filings
  - XBRL
  - Fundamentals
  - Fintech
  - Quant/trading infrastructure
  - Real-time streaming
  - WebSocket
  - FIX
  properties:
  - type: AsyncAPI
    url: asyncapi/siftingio-asyncapi.yaml
  - type: AsyncAPI
    url: https://sifting.io/asyncapi.yaml
  - type: Documentation
    url: https://sifting.io/docs/fix-api
- name: SiftingIO MCP Server
  description: >-
    LOCALLY-RUN MCP server, not a hosted endpoint. The client launches it (`npx -y siftingio-mcp`, or the
    Python package) and it runs on the user's own machine, reading the key from SIFTING_API_KEY. 36 tools
    cover forex, crypto, stocks, commodities, SEC fundamentals and on-chain DEX data. MIT licensed, with
    first-party TypeScript and Python implementations.
  humanURL: https://sifting.io/integrations/mcp
  tags:
  - Financial market data
  - Stocks/equities
  - Forex
  - Cryptocurrency
  - DeFi/on-chain
  - Commodities
  - SEC Filings
  - XBRL
  - Fundamentals
  - Fintech
  - Quant/trading infrastructure
  - Real-Time Streaming
  - WebSocket
  - FIX
  tags_raw:
  - Financial market data
  - Stocks/equities
  - Forex
  - Cryptocurrency
  - DeFi/on-chain
  - Commodities
  - SEC filings
  - XBRL
  - Fundamentals
  - Fintech
  - Quant/trading infrastructure
  - Real-time streaming
  - WebSocket
  - FIX
  properties:
  - type: MCPServer
    url: https://sifting.io/integrations/mcp
  - type: SourceCode
    url: https://github.com/SiftingIO/siftingio-mcp
  - type: SourceCode
    url: https://github.com/SiftingIO/siftingio-mcp-python
  - type: Documentation
    url: https://sifting.io/integrations/mcp
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: LLMsTxt
    url: https://sifting.io/llms-full.txt
  - type: AgentSkill
    url: https://github.com/SiftingIO/siftingio-ai-rules
- aid: siftingio:siftingio-commodities-api
  name: SiftingIO Commodities API
  description: Historical OHLC bars for commodities (metals, energy, industrials).
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Commodities
  properties:
  - type: OpenAPI
    url: openapi/siftingio-commodities-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-convert-api
  name: SiftingIO Convert API
  description: Live currency and token conversion across forex and crypto.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Convert
  properties:
  - type: OpenAPI
    url: openapi/siftingio-convert-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-crypto-api
  name: SiftingIO Crypto API
  description: Historical OHLCV bars for crypto symbols.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Crypto
  properties:
  - type: OpenAPI
    url: openapi/siftingio-crypto-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-dex-api
  name: SiftingIO DEX API
  description: On-chain wallet portfolios and historical DEX bars.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - DEX
  properties:
  - type: OpenAPI
    url: openapi/siftingio-dex-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-economiccalendar-api
  name: SiftingIO Economic Calendar API
  description: US macro economic events.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Economic Calendar
  tags_raw:
  - EconomicCalendar
  properties:
  - type: OpenAPI
    url: openapi/siftingio-economiccalendar-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-filers-api
  name: SiftingIO Filers API
  description: 13F institutional holdings.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Filers
  properties:
  - type: OpenAPI
    url: openapi/siftingio-filers-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-forex-api
  name: SiftingIO Forex API
  description: Historical OHLC bars for FX pairs.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Forex
  properties:
  - type: OpenAPI
    url: openapi/siftingio-forex-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-live-api
  name: SiftingIO Live API
  description: Live market data read from the engine's latest snapshot.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Live
  properties:
  - type: OpenAPI
    url: openapi/siftingio-live-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-markets-api
  name: SiftingIO Markets API
  description: Market catalog, status, hours, and holiday calendars.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Markets
  properties:
  - type: OpenAPI
    url: openapi/siftingio-markets-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-signals-api
  name: SiftingIO Signals API
  description: >-
    Technical-analysis signals (live and historical) across stocks, forex, crypto, and commodities.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Signals
  properties:
  - type: OpenAPI
    url: openapi/siftingio-signals-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
- aid: siftingio:siftingio-stocks-api
  name: SiftingIO Stocks API
  description: US-equity fundamentals (SEC) and historical bars.
  humanURL: https://sifting.io/docs
  baseURL: https://api.sifting.io
  tags:
  - Stocks
  properties:
  - type: OpenAPI
    url: openapi/siftingio-stocks-api-openapi.yml
  - type: PostmanCollection
    url: https://www.postman.com/siftingio/siftingio-market-data-api
  - type: Documentation
    url: https://sifting.io/docs
  - type: Documentation
    url: https://sifting.io/docs/quickstart
  - type: LLMsTxt
    url: https://sifting.io/llms.txt
  - type: Documentation
    url: https://sifting.io/integrations/mcp
maintainers:
  - FN: SiftingIO
    email: hello@sifting.io
    url: https://sifting.io
  - FN: SaltingIO LLC
    email: enterprise@sifting.io
    url: https://github.com/SiftingIO
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 90
  at: '2026-08-17T11:48:02.881Z'
common:
- type: License
  name: MIT
  url: https://github.com/SiftingIO/siftingio-mcp/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/siftingio-agentic-access.yml
- type: DomainSecurity
  url: security/siftingio-domain-security.yml
- type: Authentication
  url: authentication/siftingio-authentication.yml
- type: Packages
  url: packages/siftingio-packages.yml
- type: SDKs
  url: packages/siftingio-packages.yml
- type: SDKs
  name: SDKs & libraries
  url: https://sifting.io/sdks
- type: LLMsTxt
  name: llms.txt (verbatim)
  url: llms/siftingio-llms.txt
- type: MCPServer
  url: mcp/siftingio-mcp.yml
- type: ToolCrosswalk
  url: mcp/siftingio-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/siftingio-conventions.yml
- type: ErrorCatalog
  url: errors/siftingio-problem-types.yml
- type: Conformance
  url: conformance/siftingio-conformance.yml
- type: DataModel
  url: data-model/siftingio-data-model.yml
- type: Lifecycle
  url: lifecycle/siftingio-lifecycle.yml
- type: StatusPage
  url: https://siftingio.instatus.com/
- type: Deprecation
  name: Versioning & deprecation policy
  url: https://sifting.io/docs/quickstart
- type: ChangeLog
  url: changelog/siftingio-changelog.yml
- type: ChangeLog
  name: Changelog
  url: https://sifting.io/changelog
- type: Plans
  url: plans/siftingio-plans-pricing.yml
- type: RateLimits
  url: rate-limits/siftingio-rate-limits.yml
- type: Sandbox
  url: sandbox/siftingio-sandbox.yml
- type: Components
  url: components/siftingio-components.yml
- type: Overlay
  name: Commodities API enhancements
  url: overlays/siftingio-commodities-overlay.yaml
- type: Overlay
  name: Convert API enhancements
  url: overlays/siftingio-convert-overlay.yaml
- type: Overlay
  name: Crypto API enhancements
  url: overlays/siftingio-crypto-overlay.yaml
- type: Overlay
  name: DEX API enhancements
  url: overlays/siftingio-dex-overlay.yaml
- type: Overlay
  name: Economic Calendar API enhancements
  url: overlays/siftingio-economiccalendar-overlay.yaml
- type: Overlay
  name: Filers API enhancements
  url: overlays/siftingio-filers-overlay.yaml
- type: Overlay
  name: Forex API enhancements
  url: overlays/siftingio-forex-overlay.yaml
- type: Overlay
  name: Live API enhancements
  url: overlays/siftingio-live-overlay.yaml
- type: Overlay
  name: Markets API enhancements
  url: overlays/siftingio-markets-overlay.yaml
- type: Overlay
  name: Signals API enhancements
  url: overlays/siftingio-signals-overlay.yaml
- type: Overlay
  name: Stocks API enhancements
  url: overlays/siftingio-stocks-overlay.yaml
- type: Website
  url: https://sifting.io
- type: DeveloperPortal
  url: https://sifting.io/docs
- type: Documentation
  url: https://sifting.io/docs
- type: APIReference
  url: https://sifting.io/docs
- type: GettingStarted
  name: Quickstart
  url: https://sifting.io/docs/quickstart
- type: OpenAPI
  name: OpenAPI 3.1 (provider-hosted, canonical)
  url: https://sifting.io/openapi.yaml
- type: AsyncAPI
  name: AsyncAPI 3.0 (provider-hosted, canonical)
  url: https://sifting.io/asyncapi.yaml
- type: Postman
  name: Official Postman collection
  url: https://www.postman.com/siftingio/siftingio-market-data-api
- type: Support
  url: https://sifting.io/contact
- type: Community
  name: Slack community
  url: https://sifting.io/community/slack
- type: Blog
  url: https://sifting.io/blog
- type: GitHubOrganization
  url: https://github.com/SiftingIO
- type: Pricing
  url: https://sifting.io/pricing
- type: SignUp
  url: https://sifting.io/register
- type: Login
  url: https://sifting.io/login
- type: TermsOfService
  url: https://sifting.io/legal/terms-of-use
- type: PrivacyPolicy
  url: https://sifting.io/legal/privacy-policy
# NO WellKnown / SecurityTxt / APICatalog pointer: all 24 /.well-known/* probes across
# sifting.io, api.sifting.io and stream.sifting.io returned 404. The recorded absence lives at
# well-known/siftingio-well-known.yml but is deliberately NOT pointed at, because the pointer
# would assert the provider serves that surface.
# NO Security / VulnerabilityDisclosure / TrustCenter / Compliance pointer: no security.txt, no
# disclosure or bug-bounty page, no trust centre and no named certification (SOC 2, ISO 27001,
# PCI, HIPAA, FedRAMP) is published. probe-security-programs.py returned vdp=none trust=none.
# NO Idempotency pointer: all 37 operations are HTTP GET, so there is no idempotency-key
# contract to point at. Rationale recorded in conventions/siftingio-conventions.yml.
# NO AgentCard pointer: /.well-known/agent-card.json and /.well-known/agent.json both 404 on all
# three hosts, so no a2a/ artifact was written.
# NO Webhooks pointer: the event surface is a WebSocket stream (AsyncAPI), not webhooks.
# NO OAuthScopes pointer: API-key auth only, no OAuth surface.
x-enrichment:
  date: '2026-08-17'
  status: enriched
  artifacts_added: 35
  pass: local-v1