# SiftingIO

**Canonical:** https://apis.io/providers/siftingio/  
**Website:** https://sifting.io  
**APIs profiled:** 1

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.

## Kin Score — 63.9 / 100 (strong)

Scored 2026-09-08 under rubric 0.20.0. Trend: flat (+0.0 from 63.9).

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 59.0 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 57.9 |
| Developer Ergonomics | 83.3 |
| Commercial Clarity | 76.3 |
| Access Clarity | 76.3 |

Regulatory layer — **Securities & Market Data**: 51.7 (matched via tags).

## Agent readiness — 41.5 (agent-native)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | na |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | na |
| Error Semantics | documented |
| OpenAPI Examples | partial |
| Rate Limit Signal | verified |
| Event Surface Described | derived |
| Agent Skills | yes |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | na |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (13)

- **SiftingIO Live Stream** — WebSocket streaming API for live market data, described by an AsyncAPI 3.0 contract. Also offers a documented FIX API.
- **SiftingIO MCP Server** — 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...
- **SiftingIO Commodities API** — Historical OHLC bars for commodities (metals, energy, industrials).
- **SiftingIO Convert API** — Live currency and token conversion across forex and crypto.
- **SiftingIO Crypto API** — Historical OHLCV bars for crypto symbols.
- **SiftingIO DEX API** — On-chain wallet portfolios and historical DEX bars.
- **SiftingIO Economic Calendar API** — US macro economic events.
- **SiftingIO Filers API** — 13F institutional holdings.
- **SiftingIO Forex API** — Historical OHLC bars for FX pairs.
- **SiftingIO Live API** — Live market data read from the engine's latest snapshot.
- **SiftingIO Markets API** — Market catalog, status, hours, and holiday calendars.
- **SiftingIO Signals API** — Technical-analysis signals (live and historical) across stocks, forex, crypto, and commodities.
- **SiftingIO Stocks API** — US-equity fundamentals (SEC) and historical bars.

## MCP servers (2)

- **SiftingIO MCP Server**
- **SiftingIO MCP Server** — SiftingIO market data: live crypto/forex/metals prices, OHLCV bars, SEC fundamentals, 13F data. Returns the same normalized shapes as the REST API, with structuredContent alongs...

## Agentic access (1)

- **Siftingio Agentic Access** — 37 operations

## Security (2)

- **Siftingio Authentication** — apiKey · 3 schemes
- **Siftingio Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Siftingio Plans Pricing**

## 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

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/siftingio/). Scores are computed from the provider's own public artifacts under a published rubric.