TransportAPI

TransportAPI is a managed service for UK transport data, aimed at teams building travel products and transport analysis workflows. Its broad mode coverage and nationwide bus and rail feeds are compelling; the 30-hit daily free allowance makes it better for evaluation than sustained use.

Overview

TransportAPI provides services for accessing and publishing transport data, rather than a standalone travel app. It suits app and website developers, and teams working in transport analytics or data mining. Launched in 2012, it operates under the company name Placr Limited and is headquartered in London.

One meaningful advantage for customer projects is its stated data-rights policy: TransportAPI says it does not retain downstream rights in work customers create or develop, and permits them to use that work as they see fit.

Key features

TAPI Journey Planner supports journeys across Great Britain by bus, train, metro, coach, tram, light rail, cycle, car, ferry and taxi. That range suits products that need multimodal planning rather than a single transport feed. Engine options include SilverRail, TfL API, OTP, R5, OSRM, CycleStreets and TaxiCode, giving teams several integration choices.

TAPI Bus Information and TAPI Rail Information supply nationwide scheduled and real-time data through API or GTFS. The bus service draws on UK datasets including TNDS, BODS, NaPTAN, BODS SIRI VM and Traveline Nextbuses SIRI SM. The breadth of these feeds is useful for products spanning operators and modes, while managed data-quality monitoring adds a practical safeguard: TransportAPI reports errors to data vendors so they can be addressed at source.

Services offer polling and streaming APIs, including RESTful JSON and, for some services, WebSocket JSON-RPC. That flexibility can accommodate different integration patterns, though the specific formats depend on the service. TransportAPI also provides separate email contacts for technical support, account support and business enquiries.

Pricing

TransportAPI uses a freemium model, with a free plan and paid plans. The Free plan costs free, is free forever, and allows 30 API hits per day. That is enough to explore a small integration, but a low ceiling for an app or analytics workflow making regular requests.

The Home user plan has custom pricing, is billed monthly and includes 300 requests per day. Its higher allowance may suit modest personal use, but it remains a capped daily quota; teams expecting substantial traffic should check whether it fits before committing. A free trial is available, and trials of paid plans have higher allowances. Trial periods are also available for managed services, so prospective customers can assess a larger workload before selecting a plan.

Platforms

TransportAPI is available through API and web, with Android and iOS also listed as platforms. Its core offer is managed data services for software products, rather than a consumer journey-planning app.

Who it's for

Choose TransportAPI if you are building a Great Britain travel product that needs journey planning, nationwide bus or rail schedules, or real-time feeds. Its multiple data formats, engine options and data-quality reporting are especially relevant to teams integrating transport information into apps, websites or analysis pipelines. It is less suited to high-volume projects that cannot work within the published daily allowances or need data outside its UK focus.

Pros and cons

• Broad journey coverage: the planner supports ten transport modes across Great Britain, which helps products combine journeys rather than handle only one mode.
• Nationwide scheduled and real-time bus and rail feeds: API and GTFS options give developers a choice of delivery format.
• Managed quality reporting: errors are sent to data vendors for correction at source, a useful support for dependable downstream products.
• Small free allowance: 30 hits per day is restrictive for ongoing app usage, even though the plan is free forever.
• Daily quota on the Home user plan: 300 requests per day may be insufficient for growing services, and its price is custom.

Alternatives

For a broader look at tools in this category, browse API Integration Platforms. Choose Knit instead if you need API integration with 100K monthly calls and unlimited data usage; its Start Up plan costs $499 a month and includes three test accounts and three-day log retention. Apache Camel is a free option for teams seeking software under the Apache License 2.0, while Apache NiFi is another free Apache-licensed choice.

Windmill may suit teams seeking a free and open-source platform with three workspaces and 50 users. Celigo offers a free plan capped at two endpoints, one flow and one production environment; consider it if those limits match your integration needs. Nango is another option, with a free plan offering 10 connections, 10 compute hours per month and 10GB of data transfer per month. Workato Agent Studio may appeal if its free plan’s 50,000 one-time credits and AI and agentic capabilities suit your project. Google Cloud Application Integration has a free tier with up to 400 integration executions and up to 20 GiB of data processed per month.

Verdict

TransportAPI is a strong fit for teams building Great Britain travel services that need multimodal journey planning alongside nationwide, real-time bus or rail information. Its broad coverage, managed data-quality reporting and customer-friendly rights policy are the main reasons to choose it. Look elsewhere if the modest published daily allowances do not meet your expected volume, or if your project needs transport data beyond its UK remit.