Yelp Places API vs OpenStreetMap (Nominatim and Overpass) for AI agents
Yelp Places API is Yelp's licensed API (formerly Yelp Fusion) for searching businesses and reading Yelp business details, ratings, photos and review excerpts. Free, donation-run public servers for searching OpenStreetMap data: Nominatim for geocoding and place search, Overpass for querying OSM objects.
The short answer
- Yelp Places API: Yelp ratings, review excerpts and photos for restaurants and local services in consumer apps that display Yelp content. The terms rule out passing that content to an LLM.
- OpenStreetMap (Nominatim and Overpass): Free, openly licensed geocoding and occasional place lookups at low volume, or a base to self-host. It is not a backend for a public app at scale.
Side by side
| Yelp Places API | OpenStreetMap (Nominatim and Overpass) | |
|---|---|---|
| Searches | Local businesses listed on Yelp. Yelp says it covers "millions of businesses around the world," and the supported-locales page lists 32 countries. | OpenStreetMap data worldwide: addresses, places and mapped POIs. |
| Returns | JSON over REST at https://api.yelp.com/v3. Results include name, address, phone, Yelp rating, price level, review count, coordinates, categories, image and Yelp URL. Photos and review excerpts depend on the plan. | Nominatim returns xml, json, jsonv2 (the default), geojson or geocodejson. With extratags=1 it adds extra tags such as opening hours or a wikipedia link when mapped. |
| Before the first call | A Yelp developer account (a business email is required for the trial) and a private API key. Paid plans need a credit card on file. | No account or key. Nominatim requires a valid User-Agent or Referer that identifies your app, and visible attribution. |
| Free | A 30-day trial with up to 5,000 API calls, for evaluation only, not commercial use. There is no permanent free tier. | Free within strict limits. Nominatim allows an absolute maximum of 1 request per second. Overpass asks users to stay at or below roughly 10,000 requests and 1 GB a day. |
| Paid | Base costs $229 a month plus $5.91 per extra 1,000 calls. Enhanced costs $299 a month plus $6.57 per 1,000. Premium costs $643 a month plus $14.13 per 1,000. The FAQ says paid plans include 30,000 calls a month by default. | No paid tier. Heavy users are told to run their own instance or use commercial third-party providers. |
| Acting on a result | Results include the business phone number and its Yelp page URL. There is no way to message a business through the Places API. | Phone or website appear only when mappers tagged them in OSM, through Nominatim's extratags. There is no messaging. |
| Limits on keeping or showing results | No caching or storing of Yelp Content for more than 24 hours. No building your own business-listing database from it. Display Requirements apply, and Yelp can require removal of content within 24 hours. | Data is ODbL (share-alike), and you must credit OpenStreetMap and its contributors. Nominatim requires results to be cached for bulk jobs. It bans systematic queries, downloading all POIs in an area, autocomplete, and reselling results. |
| AI in its terms | Very restrictive. Section 9 bans training or fine-tuning generative AI models on Yelp Content. Section 9.4 bans submitting or ingesting any Yelp Content into any Generative AI Model, for example in prompts to ChatGPT. Yelp sells a separate Yelp AI API for conversational use at $25 per 1,000 calls. | Nominatim's policy has a "Usage in LLMs" section. LLMs may only suggest the service if they prominently point to the usage policy. The public API must not be built into or offered through no-code, low-code or vibe-coding platforms as a generic place-search service. |
| Coverage | 32 countries in Yelp's supported-locales list, including the US. | Worldwide OpenStreetMap data. POI completeness depends on volunteer mapping. |
| MCP server | Yelp/yelp-mcp on GitHub (https://github.com/Yelp/yelp-mcp). It wraps the Yelp Fusion AI API with one yelp_agent tool and needs a Yelp Fusion AI key, not a Places API key. | No official server listed |
Where Openpath fits
If the agent needs a local business to message in Austin, Texas, Openpath returns the listings themselves, free and with no key. See Openpath vs Yelp Places API and Openpath vs OpenStreetMap (Nominatim and Overpass).
Questions people ask
What do I need before I can use Yelp Places API?
A Yelp developer account (a business email is required for the trial) and a private API key. Paid plans need a credit card on file.
Is Yelp Places API free?
A 30-day trial with up to 5,000 API calls, for evaluation only, not commercial use. There is no permanent free tier.
What do I need before I can use OpenStreetMap (Nominatim and Overpass)?
No account or key. Nominatim requires a valid User-Agent or Referer that identifies your app, and visible attribution.
Is OpenStreetMap (Nominatim and Overpass) free?
Free within strict limits. Nominatim allows an absolute maximum of 1 request per second. Overpass asks users to stay at or below roughly 10,000 requests and 1 GB a day.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
Yelp Places API, read on October 15, 2026:
- business.yelp.com/data/resources/pricing: “$229 per month plus $5.91 per additional 1,000 API calls”
- business.yelp.com/data/resources/pricing: “$299 per month plus $6.57 per additional 1,000 API calls”
- business.yelp.com/data/resources/pricing: “$643 per month plus $14.13 per additional 1,000 API calls”
- business.yelp.com/data/resources/pricing: “Receive 5,000 free API calls during the 30-day trial period”
- business.yelp.com/data/resources/pricing: “Start 30-day free trial Business email required”
- business.yelp.com/data/resources/pricing: “$25 / 1,000 API calls Minimum 1,000 daily API calls”
- docs.developer.yelp.com/docs/places-faq: “These API calls are STRICTLY FOR EVALUATION AND NOT FOR COMMERCIAL DEPLOYMENT”
- docs.developer.yelp.com/docs/places-faq: “This plan includes 30,000 API calls per month by default”
- docs.developer.yelp.com/docs/places-intro: “valuable information such as name, address, phone number, Yelp rating, price levels, and review counts”
- docs.developer.yelp.com/docs/places-intro: “The Yelp Places API uses private key authentication to authenticate all endpoints.”
- docs.developer.yelp.com/docs/places-intro: “millions of businesses around the world”
- terms.yelp.com/developers/api_terms: “opt into a paid subscription program by providing credit card and other necessary information”
- terms.yelp.com/developers/api_terms: “cache, record, pre-fetch, or otherwise store any portion of the Yelp Content for a period longer than twenty-four (24) hours”
- terms.yelp.com/developers/api_terms: “use it to update or create your own database of business listing information”
- terms.yelp.com/developers/api_terms: “Submit or ingest any Yelp Content into any Generative AI Model (e.g., prompts that contain any Yelp Content into ChatGPT”
- terms.yelp.com/developers/api_terms: “for the purpose of training, developing, enhancing, or fine-tuning any Generative AI Models without Yelp’s prior written approval”
- github.com/Yelp/yelp-mcp: “MCP server for exposing tools powered by Yelp's data”
- docs.developer.yelp.com/docs/resources-supported-locales: “Following are the locales Yelp Places API supports.”
OpenStreetMap (Nominatim and Overpass), read on October 15, 2026:
- operations.osmfoundation.org/policies/nominatim: “No heavy uses (an absolute maximum of 1 request per second ).”
- operations.osmfoundation.org/policies/nominatim: “Provide a valid HTTP Referer or User-Agent identifying the application”
- operations.osmfoundation.org/policies/nominatim: “LLMs may only suggest this service, if they prominently point to this usage policy and explain the restrictions of use to the user.”
- operations.osmfoundation.org/policies/nominatim: “must not be built into, offered through, suggested by, or automatically generated by no-code, low-code, or vibe-coding platforms”
- operations.osmfoundation.org/policies/nominatim: “This includes reverse queries in a grid, searching for complete lists of postcodes, towns etc. and downloading all POIs in an area.”
- operations.osmfoundation.org/policies/nominatim: “If your requirements are even larger you can install your own instance of Nominatim.”
- dev.overpass-api.de/overpass-doc/en/preface/commons.html: “users are expected to send a maximum of about 10000 requests per day and keep their download volume below about 1 GB per day”
- nominatim.org/release-docs/latest/api/Search: “the response include any additional information in the result that is available in the database, e.g. wikipedia link, opening hours”
- openstreetmap.org/copyright: “You are free to copy, distribute, transmit and adapt our data, as long as you credit OpenStreetMap and its contributors.”