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PostalDataPI vs SiftingIO
Short answer: Pick PostalDataPI if you want flat-rate global postal code API; pick SiftingIO if you want unified multi-asset market data API. SiftingIO is free.
PostalDataPIOne API, 240+ countries and territories, sub-5ms, $0.000028/query flat.
SiftingIOOne API for real-time and historical market dataWhich to pick
Pick PostalDataPI if you want…
- Flat-rate global postal code API
- Geolocation API
- Integrations with MCP server (on PostalDataPI's list, not SiftingIO's)
Pick SiftingIO if you want…
- Unified multi-asset market data API
- Integrations with Go, JavaScript or REST (on SiftingIO's list, not PostalDataPI's)
Side by side
- What it is
- PostalDataPI:PostalDataPI provides a global postal code lookup, validation, and enrichment API with sub-5 ms responses.
- SiftingIO:SiftingIO provides real-time US stock, forex, crypto, commodities, and DEX data via REST and WebSocket APIs, historical OHLCV data via REST, consistent schemas, Python, TypeScript, and Go SDKs, and an MCP server for financial applications and AI tools, with a free account available..
- Best for
- PostalDataPI:Flat-rate global postal code API
- SiftingIO:Unified multi-asset market data API
- Who it’s for
- PostalDataPI:Developers needing fast, low-cost postal code data for any country.
- SiftingIO:Developers building trading platforms, fintech apps, analytics, research tools or AI agents that need market data.
- Pricing
- PostalDataPI:Pay-as-you-go
- SiftingIO:Free
- Starting price
- PostalDataPI:—
- SiftingIO:Free
- Free plan or trial
- PostalDataPI:Free trial
- SiftingIO:Free to use
- Plans
- PostalDataPI:Pay-as-you-go $0.000028 per query
- SiftingIO:Free $0 forever · Builder $79/mo Billed annually · Pro $239/mo Billed annually · Ultra $639/mo Billed annually
- Works with
- PostalDataPI:Python, MCP server
- SiftingIO:Go, Python, JavaScript, REST, WebSocket
PostalDataPI features
- 240+ country coverage. Lookup postal codes for more than 240 countries and territories.
- Sub-5 ms latency. Cached responses return in under five milliseconds.
- Flat per-query pricing. All queries cost $0.000028, no tiers or contracts.
- Free starter quota. New accounts receive 1,000 free queries without a credit card.
- Python SDK. Official client library for Python developers.
- Node SDK. Official client library for Node.js developers.
- MCP server. Self-hosted server for AI agents to query the API.
- Auto-recharge option. Balance can be recharged manually or automatically.
SiftingIO features
- 74 Venues. Across 6 asset classes.
- Real-time. Delivery under 100 ms.
- Multi-source aggregation. Data from dozens of venues is de-duplicated and normalized before delivery.
- Multi-source. One consolidated, normalized feed.
- One Schema. Integrate once · add markets faster
PostalDataPI vs SiftingIO FAQ
What is the difference between PostalDataPI and SiftingIO?+
PostalDataPI: Focuses on global location data rather than financial market data.
Should I use PostalDataPI or SiftingIO?+
Pick PostalDataPI if you want flat-rate global postal code API, geolocation API or integrations with MCP server (on PostalDataPI's list, not SiftingIO's). Pick SiftingIO if you want unified multi-asset market data API or integrations with Go, JavaScript or REST (on SiftingIO's list, not PostalDataPI's).
Is PostalDataPI or SiftingIO free?+
SiftingIO is free.
Do PostalDataPI and SiftingIO integrate with the same tools?+
Partly. Both list Python. PostalDataPI also lists MCP server; SiftingIO also lists Go, JavaScript, REST and WebSocket.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.