Launch HN: Voygr (YC W26) – A better maps API for agents and AI apps

Hi HN, we’re Yarik and Vlad from VOYGR (https://voygr.tech/), working on better real-world place intelligence for app developers and agents. Here’s a demo: https://www.youtube.com/watch?v=cNIpcWIE0n4.

Google Maps can tell you a restaurant is "4.2 stars, open till 10." Their API can't tell you the chef left last month, wait times doubled, and locals moved on. Maps APIs today just give you a fixed snapshot. We're building an infinite, queryable place profile that combines accurate place data with fresh web context like news, articles, and events.

Vlad worked on the Google Maps APIs as well as in ridesharing and travel. Yarik led ML/Search infrastructure at Apple, Google, and Meta powering products used by hundreds of millions of users daily. We realized nobody was treating place data freshness as infrastructure, so we're building it.

We started with one of the hardest parts - knowing whether a place is even real. Our Business Validation API (https://github.com/voygr-tech/dev-tools) tells you whether a business is actually operating, closed, rebranded, or invalid. We aggregate multiple data sources, detect conflicting signals, and return a structured verdict. Think of it as continuous integration, but for the physical world.

The problem: ~40% of Google searches and up to 20% of LLM prompts involve local context. 25-30% of places churn every year. The world doesn't emit structured "I closed" events - you have to actively detect it. As agents start searching, booking, and shopping in the real world, this problem gets 10x bigger - and nobody's building the infrastructure for it. We recently benchmarked how well LLMs handle local place queries (https://news.ycombinator.com/item?id=47366423) - the results were bad: even the best gets 1 in 12 local queries wrong

We're processing tens of thousands of places per day for enterprise customers, including leading mapping and tech companies. Today we're opening API access to the developer community. Please find details here: https://github.com/voygr-tech/dev-tools

We'd love honest feedback - whether it's about the problem, our approach, or where you think we're wrong. If you're dealing with stale place data in your own products, we'd especially love to hear what breaks. We're here all day, AMA.

55 points | by ymarkov 6 hours ago

23 comments

  • acombandrew 5 hours ago
    This is a great idea, albeit one that will be really hard to pull off well but really valuable for developers if you're able to execute.

    Definitely kind of a boil-the-ocean high-schlep startup but I would love to see this succeed.

    • ymarkov 5 hours ago
      Thanks, it is going to be fun! :)
  • jwelten 33 minutes ago
    Interesting approach. The annual churn stat seems brutal, I imagine that gets worse in certain categories (restaurants, pop-ups, seasonal businesses).

    How do you handle conflicting signals? E.g., a business shows as open on Google, closed on Yelp, and the website returns a 404. Is there a confidence score in the API response or is it binary (exists/doesn't)

  • tty456 1 hour ago
    > Their API can't tell you the chef left last month

    Your API can do that? Using what data?

    • ymarkov 57 minutes ago
      That is our vision of where we want to be. There is a lot of information about the places on the public web which you analyze and cross-reference. And we started to solve this problem with validation API which can tell you if a business or point of interest exists at current location.
  • bravura 3 hours ago
    Bog-standard LLM mapping is terrible and I recently added Google Maps to my personal agent to remediate this.

    I'd love to try Voygr for fun. Is there a skill defined that I could just swap in Voygr

    • ymarkov 3 hours ago
      Google also doesn't tell you if a place exists - it just returns the list of possible places which it thinks could be relevant. We have instructions defined for agents to onboard https://github.com/voygr-tech/dev-tools
  • maelito 3 hours ago
    I'm not sure I understand : how can you product help for opening times or pictures of my local boulangerie ? What kind of data sources will help you automate the reviewing of its attributes ?
    • ymarkov 3 hours ago
      We are not providing opening times yet - we just check if place is permanently closed or not. But it is in the works under our experimental enrichment API (which is not yet open to public)
      • wipfli 2 hours ago
        I started scraping restaurant websites in Zürich and extracted and hand-checked opening hours in the OpenStreetMap format. The goal is to build a corpus for evaluation purposes which maps website texts to correct opening hours strings for all restaurants in Switzerland. Maybe you can use that to benchmark your own hours extracting system... https://github.com/wipfli/opening-hours/
        • ymarkov 2 hours ago
          Appreciate sharing this project - democratizing this data is indeed a very important step. Interesting that you settled on Haiku - did you have a chance to check flash-2.5-lite or gpt-5-nano performance?
          • wipfli 1 hour ago
            Not yet. I can ping you once I do some comparison
  • amir_karbasi 5 hours ago
    Really cool! We're currently using map and web searches in our agent to gather this info for our tool. Does it support an approximate address? For example, if a plaza can have multiple street numbers, do I need to make a request for each possible address or would it find a certain business with an approximate address?
    • ymarkov 5 hours ago
      Thanks! Our initial API works as follows - you provide POI/business name and its address and we are telling you if it exists or not. So if you are looking to check if the plaza is existing, you just need to provide its supposed address. If it is a business within plaza, then an address of that business is required
      • amir_karbasi 4 hours ago
        Let me rephrase my question. How exact must the address input be? Do I need to include unit numbers? What if the street number is off by a few due to the layout of a plaza?

        Using Maps or Web Search APIs, I can find approximate locations for certain businesses based on my input. Can your API work in a similar manner?

        • ymarkov 2 hours ago
          It is supposed to work if you even don't include unit number or a house number is a bit off. We analyze other signals too, so if the address is a bit off, the API is still supposed to mark a place as existing
  • Toby11 1 hour ago
    what does “exist” mean in this case.. what is factored to determine a place exist? the building is there? people are speaking about it on social media? they have ad on google that point to the local address etc?
    • ymarkov 1 hour ago
      It means that there is sufficient evidence found online that this business or poi is located at that address
  • il 6 hours ago
    I like the agent-first signup via API. Is this meant to be distributed as an agent skill?
    • ymarkov 6 hours ago
      Indeed, in the current age we need to build things for agents first. We think that the skills will primarily will be discovered through marketplaces or via web search
  • frankdenbow 5 hours ago
    Implementing maps into our app so giving this a shot. How does pricing compare to google maps api?
    • ymarkov 5 hours ago
      It is on par with Google Maps API, but Google gives you more data. Our terms of service are more flexible - for instance we don't require attribution and deleting our data past 30 days. And we are actively working on adding more info to our APIs
  • gnerd00 1 hour ago
    I think you should market specifically to people and orgs that already have registered identity and location tracking of their movements, purchases and personal actions while on duty. Then you can practice your ambitious tech, but also not pull innocent people into more detailed tracking and analytics. Many occupations and orgs have already made this bargain, so stick with them instead of trying to get naive people to have their detailed movements and actions tracked. Also probably large parts of East Asia are doing this.
    • ymarkov 1 hour ago
      Appreciate thinking about it, but I think there's some misunderstanding - we don't track people or movements. VOYGR validates places - for instance, we are able to answer a question if this business still open?
  • teepo 3 hours ago
    Why not go with V'ger? Seems like a missed opportunity: https://en.wikipedia.org/wiki/List_of_Star_Trek_characters_(...
    • ymarkov 2 hours ago
      Indeed, we've been told about that. Hopefully, it won't be a defining moment for us as a company :)
  • macrolet 5 hours ago
    Who are your customers? Consumer or business?
    • ymarkov 5 hours ago
      Both - we're building APIs ultimately designed for AI agents and LLMs that need trustworthy place data and that includes cases from enterprise to personal people's agents
  • thesiti92 5 hours ago
    what kinds of data quality evals do you guys use now? i'm curious to try integrating it
    • ymarkov 4 hours ago
      We are using judges with LLMs and web grounding plus manual grading. We recently did a benchmark on the LLM quality across major AI providers - we plan to open source it soon and will probably open source our API quality check benchmark too https://news.ycombinator.com/item?id=47366423
  • deepdarkforest 5 hours ago
    Its quite funny that you are building an "infinite place profile", you both worked on products used by 100s of millions of people, and yet your website is down from 45 minutes of HN traffic!

    Joking, but its a very good idea. Synchronization between the physical world information and digital has been a very hard problem for decades and im sure an agentic approach can 10x the value.

    • ymarkov 5 hours ago
      Thanks! Was it truly down? I have checked and I don't see any disruptions
  • takahitoyoneda 3 hours ago
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  • agent5ravi 5 hours ago
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  • aplomb1026 5 hours ago
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  • dk8996 4 hours ago
    We work in this space and have found that, very often, the realities on the ground do not match the digital information, especially when it comes to geospatial data, where businesses exist, what businesses actually exist, and their status. At Rwazi, we have millions of users helping collect on-the-ground data.
  • bhekanik 5 hours ago
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  • useftmly 3 hours ago
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  • Kachilu 4 hours ago
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