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SiftingIO

Market data APIs for stocks, forex, crypto, commodities, and on-chain venues. REST + WebSocket, multi-venue aggregation, sub-100ms streams, 99.9% SLA.

Visit SiftingIOsifting.io
Free plan
SiftingIO screenshot, image 1

Overview

Market data API for developers and quants. Real-time and historical prices for stocks, forex, crypto, commodities, and filings over REST and WebSocket.

AI summary

SiftingIO is a market data API that provides real-time and historical data across multiple asset classes including stocks, forex, crypto, and commodities through REST and WebSocket. It aggregates data from various venues into a normalized JSON schema, allowing developers to access diverse markets with a single integration.

Sources behind this listingSee source links, recorded dates and owner corrections.

Observed facts come from public pages. Founder-edited facts are supplied by the verified owner. AI-inferred facts are model interpretations; derived facts are calculated from other data. A source link lets you check the current page. It does not guarantee the fact is still current.

Dates show when a record was saved. Some older records use the listing’s update date; they are not proof of a fresh check. Missing source records are shown explicitly.

TaglineMarket data APIs for stocks, forex, crypto, commodities, and on-chain venues. REST + WebSocket, multi-venue aggregation, sub-100ms streams, 99.9% SLA.
ObservedRecorded Source: sifting.io
DescriptionMarket data API for developers and quants. Real-time and historical prices for stocks, forex, crypto, commodities, and filings over REST and WebSocket.
ObservedRecorded Source: sifting.io
Free planYes
ObservedRecorded Source: sifting.io
Free trialNot stated
Source not recordedDate not recordedSource link unavailable
Pricing modelfreemium
AI-inferredRecorded Source: sifting.io
IntegrationsGitHub, Google Workspace, Linear, Okta, Slack, Telegram, n8n
ObservedRecorded Source: sifting.io
Plan: FreeFree
AI-inferredRecorded Source: sifting.io
Plan: Builder$79/mo
AI-inferredRecorded Source: sifting.io
Plan: Pro$239/mo
AI-inferredRecorded Source: sifting.io
Plan: Ultra$639/mo
AI-inferredRecorded Source: sifting.io
Plan: EnterpriseCustom
AI-inferredRecorded Source: sifting.io
SummarySiftingIO is a market data API that provides real-time and historical data across multiple asset classes including stocks, forex, crypto, and commodities through REST and WebSoc...
AI-inferredRecorded Source link unavailable

Pricing

Pricing recorded 15 September 2026Pricing page
Free
Free
req per min
60
symbol subs
5
team members
1
ws connections
1
  • No card required
  • 10,000 REST calls / month
  • 1 month of historical depth
Builder
$79/mo
Flat
req per sec
100
symbol subs
100
team members
3
ws connections
3
  • 250,000 REST calls / month
  • 3 WS connections
  • 99.5% uptime SLA
Pro
$239/mo
Flat
req per sec
150
symbol subs
1000
team members
10
ws connections
10
  • 5,000,000 REST calls / month
  • 10 WS connections
  • 99.9% SLA + service credits
Ultra
$639/mo
Flat
req per sec
250
symbol subs
Unlimited
team members
25
ws connections
50
  • Unlimited REST API calls
  • 50 WS connections
  • 99.9% SLA + automatic service credits
Enterprise
Custom
req per sec
Custom
symbol subs
Custom
team members
Unlimited
ws connections
Custom
  • Custom call quotas across all markets
  • 99.95% SLA + credits
  • Dedicated AM
Enterprise tierEducation or nonprofit discountFree tier: 10,000 REST calls / month, 1 month of historical depth

Who Is It For

Best for

Developers and financial teams looking for a unified API to access real-time and historical market data for various asset classes without managing multiple integrations.

Not for

Users seeking a comprehensive user interface or extensive analytics tools beyond API access may find SiftingIO limited.

Strengths & Weaknesses

Biggest strength

Offers a free tier with access to the same production API and schema as paid plans, enabling easy testing and integration without upfront costs.

Biggest weakness

Pricing details are not visible, which may lead to uncertainty about costs as usage scales. (AI-inferred; may be outdated. Founders can correct this)

Classification

Likely competitors
Alpha VantageIEX CloudPolygon.ioTradier

Alternatives to SiftingIO

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Community

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How we sourced this: Observed fields () were crawled from https://sifting.io/ when recorded. Source links and dates are available above. AI-inferred fields () were generated by gpt-4o-mini and are always labelled, never presented as measured fact. Last updated: 15 September 2026. Site availability checked: 14 September 2026. Is this your tool? Claim it to edit and get a do-follow badge.