Methodology

How Buggy Smart actually works

Full transparency on how an AI calls London venues, classifies responses, and keeps the map accurate. No black boxes.

The call

Poppy, our AI voice agent, places outbound calls to venues using a real UK phone number. She introduces herself conversationally and asks about pram access. The calls are short – typically 30 to 90 seconds – and indistinguishable from a human caller in the vast majority of cases.

She asks broadly: are you pram-friendly? Can a buggy get through the door? Is there a step? She listens, follows up if the answer is ambiguous, and ends politely. The entire conversation is recorded and transcribed.

0.4%

Detection rate

Across 6,752 calls, only 4 people identified Poppy as an AI. In one case, Poppy called a venue that was itself AI-powered – neither knew they were talking to a machine until the end.

How green, amber, and red are decided

Every transcript is analysed by a second AI (Claude, by Anthropic) that classifies the venue based on what was actually said. The criteria:

Green – Buggy friendly

Venue gave a clear yes. Level access or step-free entrance confirmed. Staff were welcoming.

Amber – Tight squeeze

Venue said yes with caveats – a step, narrow entrance, limited space inside, or conditional on timing.

Red – Not accessible

Venue gave a clear no, cited stairs, basement location, or small space with no room for a buggy.

Venues are only rated if the call produced a confident classification. Ambiguous, cut-off, or contradictory calls are excluded from the map until a follow-up call produces a clear answer.

What happens to the call

  1. 01
    Call placed Poppy dials the venue via Twilio. The call is routed through a real UK number. Conversations are recorded.
  2. 02
    Transcript generated ElevenLabs transcribes the full conversation within seconds of the call ending.
  3. 03
    Classification Claude reads the transcript and assigns a rating: green, amber, or red. It also extracts the best quote to show on the map.
  4. 04
    Venue matching The result is matched to a known venue in our database by name, address, and phone number. Unmatched results are held for review.
  5. 05
    Map update Verified venues are added to the live map. The pipeline runs three times daily. No human presses a button.

Common questions

Do venues know they're being called by an AI?

Not initially. Poppy calls like a regular customer enquiry. If asked directly, she will confirm she's an AI – which is why 0.4% of calls result in a detected call. The other 99.6% proceed naturally.

What if a venue's rating is wrong?

Venues can change. A cafe that was accessible last month may have rearranged furniture or added a step. We re-call venues periodically and accept inaccuracy reports on every venue page. If you think a rating is wrong, flag it – we'll re-call within a week.

What if nobody picks up?

No answer, voicemail, or engaged tone results in the call being logged but the venue not rated. We retry unanswered venues in later batches. Venues are never rated without a real conversation.

How often are venues re-called?

Currently, each venue is called once. We're building a re-call schedule to refresh ratings quarterly – access situations change, especially after renovations. Until then, we show the call date on each venue entry.

How are venues selected?

We use Google Places data to build borough-level venue lists, filtered to cafes, restaurants, pubs, and similar venues. We exclude venues that are clearly not relevant (petrol stations, supermarkets) before calling.

Is this legal?

Yes. Cold calling businesses for legitimate commercial research purposes is legal in the UK. Venues are businesses open to the public. We don't call residential numbers and we don't record for any purpose beyond classification.

What we don't claim

Buggy Smart is not a definitive accessibility guide. Pram access depends on buggy size, venue layout at the time of visit, and staff willingness on the day. A green rating means a venue said yes to an AI caller – it doesn't guarantee a perfect experience.

Use it as a first filter, not a guarantee. We think it's better than showing up and hoping – which is what most parents do now.

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