Head to head · Geocoding · October 2026 research run

NextBillion.ai vs Nominatim

Nominatim scores 63.5 (B) on agent readiness against NextBillion.ai's 55.4 (C), and leads in 4 of 7 scored categories. NextBillion.ai leads on schema & documentation and maintenance & community. Both do geocoding.

Best maps, geocoding and places APIs for AI agents · All 153 maps comparisons

Which one, for what

NextBillion.ai C

Best for Fleet and delivery routing, distance matrices and route optimisation with truck profiles, plus geocoding and POI search, for companies ready for an annual contract.

Ahead on

  • Schema & documentation, 73 against 51
  • Maintenance & community, 73 against 60

Also in its favour

  • A hosted endpoint, with nothing to install
  • Free to start without a card

Watch for

Pricing is by quote on annual licences, with no public unit prices

Nominatim B

Best for Self-hosted worldwide geocoding from OpenStreetMap data with no per-call cost or storage limits beyond ODbL.

Ahead on

  • Reliability, 82 against 45
  • Payments & pricing, 60 against 20

Also in its favour

  • No key needed to call it
  • Open source

Watch for

No OpenAPI spec and no llms.txt

Why the edge

Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.

Payments & pricing Nominatim +40

NextBillion.ai 20

No x402, MPP or L402 (0). Pricing is by quote, with annual licences per order, asset or API call and no published unit price (0). A 7-day free trial with an API key and 'No credit card required' (20). A person signs up through the console or emails support for a key (0). 0+0+20+0 = 20.

Nominatim 60

Self-hosted rule. No payment protocol (0). Free software with nothing to buy (20 + 20 + 20). The public instance is also free and keyless, within its usage policy. 0+20+20+20 = 60.

Reliability Nominatim +37

NextBillion.ai 45

Hosted lines, for the REST APIs at api.nextbillion.io and the hosted MCP server. A status page at status.nextbillion.io, 'NextBillion.AI API Status', renders only in a browser, and its Statuspage-style JSON paths return 404, so we couldn't see its components (10) or read any history. That's our limit, not a finding, and the rubric gives 5 (5). The API reference states 2,400 queries a minute, or 40 a second, for continuous requests (15). Each endpoint's error table lists 429 as 'QPM or API request count quota reached', with no Retry-After or backoff guidance (5). No SLA found; the terms say access isn't warranted to be uninterrupted (0). The REST APIs are GA. The MCP server is at version 0.5.3 (10). 10+5+15+5+0+10 = 45.

Nominatim 82

Read with the local-software lines, since the listing is the Nominatim server an operator runs. The public instance at nominatim.openstreetmap.org belongs to the OpenStreetMap Foundation and its usage policy caps it at one request a second, so it isn't graded as a hosted service. Official packages nominatim-db and nominatim-api on PyPI (5.3.3 on 14 October 2026, Python 3.9 or later) and installation guides for Ubuntu 22 and 24 (20). A public CI workflow runs unit and BDD tests on every push across Ubuntu 24 and 26 with PostgreSQL 13 to 18, and Windows unit tests. We couldn't see run results (20). Issue counts and reply times couldn't be read because the GitHub API was rate-limited for us; Sarah Hoffmann made 76 of the 106 commits since 8 August (12). A ChangeLog per release and semantic version numbers (15). Version 5.3.3 (15). 20+20+12+15+15 = 82.

Schema & documentation NextBillion.ai +22

NextBillion.ai 73

No OpenAPI document for the REST APIs was found in llms.txt or the docs. The hosted MCP server's 27 tools are defined with Zod schemas, so they carry typed JSON Schema inputs (15 of 25). llms.txt, llms-full.txt and a Markdown file for each docs page (10). Endpoint pages explain each parameter, and MCP tool descriptions say when not to use a tool, such as the geometry tools being straight-line rather than road distance (16). Parameter tables give types, allowed values and defaults, such as types and limit (default 10), though in packs several filters into one string (12). curl examples and a per-endpoint error table with causes (13). The MCP server has a dated changelog. No API changelog or versioned path was found (7). 15+10+16+12+13+7 = 73.

Nominatim 51

No OpenAPI or machine-readable contract (0). nominatim.org/llms.txt returns 404, and the manual is HTML, though its Markdown sources sit in the repository's docs folder (0). The API reference explains each endpoint and parameter and when not to use one, such as the details endpoint being for debugging (14). Types, enums and limits are documented, such as format, layer and limit (at most 40), but there's no schema to validate against (12). Example queries and outputs per endpoint, with errors described in prose (10). A versioned manual per release, a ChangeLog and a migration guide (15). 0+0+14+12+10+15 = 51.

Maintenance & community NextBillion.ai +13

NextBillion.ai 73

MCP server 0.5.3 on 30 October 2026 (30). Eleven tagged MCP releases between 7 October and 30 October, adding hosted mode, truck routing and geometry tools (20). Support by email, a public MCP repository with a changelog, but no public API changelog (8). The MCP server isn't in the official MCP registry, and we didn't check the mobile SDK versions (7). The MCP repository runs CI with unit and end-to-end tests (8). 30+20+8+7+8 = 73.

Nominatim 60

Release 5.3.3 on 14 October 2026, 23 days before this check (30). Only one release in the 90 days from 8 August, against 106 commits on the default branch; commits aren't counted as releases (0). Commits from the lead maintainer and seven or more contributors since August, but we couldn't read issue reply times (12). The nominatim-api Python library is current with the server (10). CI on every push, current PostgreSQL and Python versions (8). 30+0+12+10+8 = 60.

Score by category

CategoryWeight this runNextBillion.aiNominatimEdge
Reliability16%204582Nominatim +37
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27351NextBillion.ai +22
Agent ergonomics13%16.27775NextBillion.ai +2
Security & auth14%17.54650Nominatim +4
Payments & pricing10%12.52060Nominatim +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87360NextBillion.ai +13
Transparency & trust7%8.85859Nominatim +1
Negative events≤1500
TotalC 55.4/100B 63.5/100

Facts side by side

FactNextBillion.aiNominatim
KindHTTP APIHTTP API
VendorNextBillion.ai Pte. Ltd.Nominatim project (osm-search)
Hosted endpointhttps://mcp.nextbillion.iono (local only)
TransportsHTTP, Streamable HTTPHTTP
AuthOAuth or keyNone
PricingPaidFree
x402nono
LicencenoneGPL-3.0-or-later
Tools exposed27none
Read-only variant documentedyesno
llms.txtyesno
Last release2026-10-302026-10-14
Terms last updatedno date givenno date given
Privacy policy last updatedno date givenno document linked
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textyes
Terms restrict benchmarkingnot found in the textnot found in the text
Terms or service can change without noticenot found in the textnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Popularitynone2.1k PyPI/wk

Verdicts

NextBillion.ai

NextBillion.ai covers routing, distance matrices, route optimisation, geocoding and places, and runs a hosted MCP server with 27 read-only annotated tools and OAuth sign-in. Pricing is by quote on annual licences, the REST API key travels in the query string, and no OpenAPI spec, API changelog or readable status history was found.

Nominatim

Nominatim is the open-source OpenStreetMap geocoder, free to run with a documented search, reverse and lookup API, tested releases and two years of security support per release. It has no OpenAPI spec, no built-in authentication, and the public instance allows one request a second and restricts LLM-suggested use, so agents at scale need their own server.

Before you call either

NextBillion.ai

  1. Connect through https://mcp.nextbillion.io so the key stays in a Bearer header or OAuth token rather than in request URLs
  2. Use the geometry tools only for straight-line questions; use directions or distance_matrix for travel time
  3. Batch up to 100 geocodes with geocode_batch instead of one call per address
  4. On 429 the quota or the 2,400-a-minute limit is reached; slow down and tell the user if credits are spent
  5. Search the docs with the MCP documentation tools before guessing a parameter

Nominatim

  1. Don't send bulk or repeated queries to nominatim.openstreetmap.org; keep to one request a second, cache results and set an identifying User-Agent
  2. Tell the user about the OSMF usage policy before suggesting the public instance, as the policy requires
  3. For regular or large jobs, run your own Nominatim or use a commercial provider listed on the Nominatim wiki
  4. Pass format=jsonv2 or geojson and limit, since omitting format sends the request to the web UI
  5. Attribute OpenStreetMap and respect the ODbL share-alike terms when storing results

Questions

Which is better for AI agents, NextBillion.ai or Nominatim?

Nominatim scores 63.5 (B) on agent readiness against NextBillion.ai's 55.4 (C), and leads in 4 of 7 scored categories. NextBillion.ai leads on schema & documentation and maintenance & community.

Do NextBillion.ai and Nominatim need an API key?

NextBillion.ai takes an API key or an OAuth sign-in. Nominatim needs no key.

Can an agent call NextBillion.ai and Nominatim without installing anything?

NextBillion.ai has a hosted endpoint at https://mcp.nextbillion.io. No hosted endpoint is listed for Nominatim.

Are NextBillion.ai and Nominatim open source?

No open-source release is listed for NextBillion.ai. Nominatim is open source (GPL-3.0-or-later).

Other comparisons with NextBillion.ai or Nominatim

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