Tomorrow.io

Tomorrow.io is a Boston-based weather intelligence platform combining a global proprietary numerical weather model, a constellation of microsatellite weather radars, and a developer-facing v4 REST API. The platform exposes 60+ hyperlocal data layers — core weather, air quality, pollen, solar, soil, fire, flood, lightning, maritime, aviation, road — together with map tiles, severe-weather event detection, routable forecast queries, climate normals, historical archive access, customer-defined locations, named insights, and threshold-based webhook alerts. Used by airlines, on-demand logistics platforms, agriculture, energy, and the US Air Force, Tomorrow.io's API is designed for ETA-aware route planning, geofenced alerting, agentic workflows, and large-scale operational decisioning under weather risk.

Tomorrow.io publishes 11 API contracts indexed on the APIs.io network, including Historical Weather API, Events API, Weather on Routes API, and 8 more. Tagged areas include Weather, Forecast, Climate, Risk Management, and Air Quality.

The Tomorrow.io catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Tomorrow.io’s developer surface includes authentication, developer portal, documentation, API reference, signup flow, developer console, sandbox, and 48 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

56.3/100 strong ▬ flat Agent 37/100 agent ready Heartbeat 50/100 alive saas Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 published contracts 1 MCP Servers 12 Features 10 Use Cases

Weather Forecast Climate Risk Management Air Quality Pollen Lightning Severe Weather Maps Routing SatelliteMicrosatellitesRadar Geospatial Alerts Historical Weather Fire Flood Routes Map Tiles Aviation Maritime Public APIs

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 56.3/100 · strong

Contract Quality 11.4 / 19

Developer Ergonomics 11.1 / 15

Access Clarity 9.1 / 15

Operational Transparency 2.8 / 10

Contract Governance 2.5 / 9

Discoverability 4.9 / 8

Regulatory Posture 3.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 37/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 60.7 — up to +9.8 composite points
Operational Transparency scores 28.9 — up to +9.2 composite points
Contract Governance scores 27.3 — up to +8.7 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/tomorrow-io/apis.yml: open an issue on github.com/api-evangelist/tomorrow-io to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Weather and Climate Data	regulated	42.8	-	-
Space and Satellite (operators, earth observation, ground segment)	regulated	42.8	-	-
Data Marketplaces (data providers on cloud data platforms)	regulated	42.8	-	-
Air Traffic and Aviation Data (manned aviation, ATM, airport suppliers)	regulated	42.8	-	-
Overture Maps Foundation (members + data contributors)	regulated	42.8	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 3

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

APIs 11

Individual APIs this provider publishes, each with its own machine-readable definition.

Tomorrow.io Historical Weather API

Retrieve historical weather observations and monthly climate normals for any point or polygon on Earth using the same field catalog as the realtime and forecast APIs.

Tomorrow.io Events API

Retrieve severe weather events, fires, floods, lightning swarms, and custom vector events affecting a point or geometry.

Tomorrow.io Weather on Routes API

Retrieve weather along an arbitrary polyline of waypoints at the times each segment is expected to be traversed — powers route optimization, logistics planning, and ETA-aware ha...

Tomorrow.io Locations API

Manage saved locations (points, polygons, lines) referenced by ``locationId`` across the Tomorrow.io APIs, with tag-based cohorts for fleet, customer, or asset organization.

Tomorrow.io Alerts API

Create and manage threshold-based weather alerts that evaluate Tomorrow.io data layers against custom rules for linked locations and deliver notifications via webhook, email, an...

Tomorrow.io Insights API

Define and manage reusable Insights — named rules combining Tomorrow.io data layers, operators, and thresholds — that power the Events and Alerts APIs.

Tomorrow.io Forecast API

1h / 1d step weather forecast for the next 14 days.

Tomorrow.io Maps API

Web Mercator tile service for weather layers.

Tomorrow.io Realtime API

Current weather conditions for a point or location.

Tomorrow.io Timelines API

Flexible timeline retrieval across any combination of fields and timesteps.

Tomorrow.io Climate API

30-year climate normals for a location.

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Postman Collections 8

Ready-to-run Postman collections for exercising this provider's APIs.

Tomorrow.io Alerts API

POSTMAN

Tomorrow.io Events API

POSTMAN

Tomorrow.io Historical Weather API

POSTMAN

Tomorrow.io Insights API

POSTMAN

Tomorrow.io Locations API

POSTMAN

Tomorrow.io Weather Maps API

POSTMAN

Tomorrow.io Weather on Routes API

POSTMAN

Tomorrow.io Weather API

POSTMAN

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Open Collections 12

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Tomorrow.io Alerts API

OPEN COLLECTION

Tomorrow.io Alerts Events API

OPEN COLLECTION

Tomorrow.io Alerts Forecast API

OPEN COLLECTION

Tomorrow.io Alerts Historical API

OPEN COLLECTION

Tomorrow.io Alerts Insights API

OPEN COLLECTION

Tomorrow.io Alerts Locations API

OPEN COLLECTION

Tomorrow.io Weather Maps API

OPEN COLLECTION

Tomorrow.io Alerts Maps API

OPEN COLLECTION

Tomorrow.io Alerts Realtime API

OPEN COLLECTION

Tomorrow.io Alerts Route API

OPEN COLLECTION

Tomorrow.io Alerts Timelines API

OPEN COLLECTION

Tomorrow.io Weather API

OPEN COLLECTION

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Arazzo Workflows 12

Multi-step API workflows described with the Arazzo specification.

Tomorrow.io Alert Threshold Tuning

Inspect an existing alert, retune its threshold, and confirm the updated definition.

ARAZZO

Tomorrow.io Decommission a Monitored Location

Confirm a location exists, unlink it from an alert, then delete the saved location.

ARAZZO

Tomorrow.io Historical and Climate Normals Analysis

Save a location, pull its historical weather timeline, and compare against climate normals.

ARAZZO

Tomorrow.io Insight-Driven Alert Setup

Define a reusable insight, build an alert from it, bind locations, and activate monitoring.

ARAZZO

Tomorrow.io Insight-Scoped Event Query

Define an insight, then run an advanced event query filtered to that insight over an area.

ARAZZO

Tomorrow.io Location Severe Weather Events

Save a location, scan it for severe weather events, and branch on whether any are active.

ARAZZO

Tomorrow.io Map Tile Precipitation Overlay

Read realtime precipitation for a point, then fetch the matching weather map tile.

ARAZZO

Tomorrow.io Realtime Snapshot then Timelines Deep Dive

Take a realtime reading, then pull a multi-field timeline window over the same location.

ARAZZO

Tomorrow.io Realtime vs Climate Normals Benchmark

Compare current conditions for a location against its long-term monthly climate normals.

ARAZZO

Tomorrow.io Route Weather Hazard Scan

Retrieve weather along a planned route, then scan the destination for severe events.

ARAZZO

Tomorrow.io Saved Location Realtime and Forecast

Create a reusable saved location, then pull realtime conditions and a multi-day forecast for it.

ARAZZO

Tomorrow.io Tag and Monitor a Location Cohort

Create a location, tag it into a cohort, confirm the tag, and read its current conditions.

ARAZZO

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MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Tomorrow.io MCP Server

Remote MCP server at api.tomorrow.io over HTTP.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Tomorrow Io Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Tomorrow Io Rate Limits

4 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Tomorrow Io Finops

FINOPS

Features 12

Notable capabilities this provider offers.

60+ Hyperlocal Data Layers

Core weather, air quality, pollen, solar, soil, fire, flood, lightning, maritime, aviation, and road layers retrievable at point, polygon, or polyline geometry.

Proprietary Microsatellite Weather Radar Constellation

Tomorrow.io operates its own constellation of space-based weather radars to fill gaps in terrestrial radar coverage, especially over oceans and the developing world.

Minutely Forecast Resolution

60-minute minute-by-minute precipitation forecast in addition to hourly and daily timelines (Enterprise tier).

14-Day Forecast Horizon

Daily forecast out to 14 days on Enterprise plans, 5 days on Free.

Climate Normals

Monthly long-term averages for benchmarking current conditions against typical patterns.

Severe Weather and Custom Events

First-class API for severe weather phenomena plus customer-defined vector events for proprietary hazard models.

Threshold Alerts with Webhooks

Define rule-based alerts that fire webhooks and emails when conditions cross thresholds for linked locations.

Weather Map Tiles

Web Mercator PNG tiles for visualizing every data layer in Mapbox, MapLibre, Leaflet, OpenLayers, Google Maps.

Weather on Routes

ETA-aware weather retrieval along a polyline of waypoints for logistics, aviation, and maritime planning.

MCP Server

Official Tomorrow.io Model Context Protocol server for agentic AI access to the Weather API.

99.9% Uptime SLA

Enterprise SLA with rate-limit response headers exposed for programmatic monitoring.

LLMs.txt Indexed Documentation

Tomorrow.io publishes an LLMs.txt index of every documentation page and endpoint for AI agents.

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Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Tomorrow Io Context

4 classes · 16 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Tomorrow.io — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

Tomorrow.io API Rules

6 rules · 2 errors 3 warnings 1 info

SPECTRAL

JSON Schema 5

Standalone JSON Schema definitions for this provider's data models.

Tomorrow.io Alert

7 properties

JSON SCHEMA

Tomorrow.io Event

9 properties

JSON SCHEMA

Tomorrow.io Insight

5 properties

JSON SCHEMA

Tomorrow.io Location

6 properties

JSON SCHEMA

Tomorrow.io Weather Values

20 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Tomorrow Io Weather Values Structure

0 properties

JSON STRUCTURE

Examples 5

Example request and response payloads for these APIs.

Tomorrow Io Alert Example

2 fields

EXAMPLE

Tomorrow Io Events Example

2 fields

EXAMPLE

Tomorrow Io Realtime Example

2 fields

EXAMPLE

Tomorrow Io Route Example

2 fields

EXAMPLE

Tomorrow Io Timelines Example

2 fields

EXAMPLE

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Tomorrow Io Authentication

apiKey · 1 scheme

SECURITY

Tomorrow Io Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Tomorrow Io Agentic Access

32 operations · 15 acting

AGENTIC

Use Cases 10

What developers build with this provider.

Route Optimization and Logistics

ETA-aware weather along truck, drone, and last-mile routes to avoid storms, ice, and visibility hazards.

Aviation Planning

Airline operations centers and dispatch use Tomorrow.io for icing, turbulence, low-level wind shear, and aerodrome forecasts.

Energy Forecasting

Wind and solar generation forecasting, load forecasting under heat events, and outage management.

Agriculture

Soil moisture, evapotranspiration, frost, and growing-degree-day analytics for farm operations.

Severe Weather Alerting

Geofenced alerting for tropical storms, severe thunderstorms, hail, lightning, and flash floods.

Sports and Outdoor Events

Game-day, race-day, and venue operations under lightning, heat, and precipitation risk.

Insurance and Climate Risk

Historical and climate-normals data for parametric insurance pricing and physical climate risk modeling.

Data Science

Bulk historical timelines for training operational decision models and backtesting weather-sensitive workflows.

Maritime Operations

Wave height, swell direction, and sea-state forecasting for shipping, offshore energy, and fisheries.

On-Demand Platforms

Surge demand modeling and worker-safety alerting for rideshare, delivery, and on-demand services.

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Integrations 9

Pre-built integrations with other platforms and tools.

Mapbox

Drop Tomorrow.io map tiles directly into Mapbox GL JS basemaps; official tomorrow-route-mapbox sample.

MapLibre

Open-source slippy-map client compatible with the Tomorrow.io Maps API.

Leaflet

Compatible with the Tomorrow.io Maps XYZ tile service.

Google Cloud Functions

Official tomorrow-api-proxy sample demonstrates key-safe proxy deployment on GCP.

Netlify Edge

Official tomorrow-netlify sample for serverless edge proxying.

Postman

Official Tomorrow.io Postman collection covering every v4 endpoint.

Model Context Protocol (MCP)

Official Tomorrow.io MCP server for plugging Weather, Forecast, Timelines, and Events into AI agents.

Webhooks

First-class webhook delivery for alert notifications.

Insights Dashboard

tomorrow-events-charts open-source dashboard demonstrating the Events API.

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Solutions 6

Packaged solutions this provider offers.

Weather API for Developers

Self-serve developer API with 60+ data layers, Postman collection, and MCP server.

Tomorrow.io Resilience Platform

Operational dashboards, alerts, and decision automation built on top of the Tomorrow.io Weather API.

Aviation Resilience

Vertical solution for airline operations centers, dispatch, and aerodrome operations.

Energy Resilience

Vertical solution for utility load forecasting, generation forecasting, and outage management.

Logistics Resilience

Vertical solution for fleet, freight, and last-mile delivery routing under weather risk.

Government and Defense

Tomorrow.io serves the US Air Force and other defense and government customers with operational weather intelligence and proprietary space-based weather radar.

Resources

Get Started 5

Portal, sign-up, and the first successful call

Portal

Signup

Console

Sandbox

GettingStarted

Documentation 4

Reference material describing how the API behaves

Documentation

APIReference

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 16

Pagination, idempotency, versioning, errors, and events

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

ErrorCodes

SpectralRules

Vocabulary

JSONLD

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Build 13

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

SDKs

SDKs

SDKs

SDKs

SDKs

SDKs

SDKs

SDKs

SDKs

SDKs

Tomorrow.io (corporate org)

GitHubOrganization

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Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Authentication

Authentication

Operate 4

Status, limits, changes, and where to get help

RateLimits

ChangeLog

Support

RateLimits

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

FinOps

Company 4

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Twitter

Twitter

Source (apis.yml)

aid: tomorrow-io
url: https://raw.githubusercontent.com/api-evangelist/tomorrow-io/refs/heads/main/apis.yml
name: Tomorrow.io
description: Tomorrow.io is a Boston-based weather intelligence platform combining a global proprietary numerical weather
  model, a constellation of microsatellite weather radars, and a developer-facing v4 REST API. The platform exposes 60+ hyperlocal
  data layers — core weather, air quality, pollen, solar, soil, fire, flood, lightning, maritime, aviation, road — together
  with map tiles, severe-weather event detection, routable forecast queries, climate normals, historical archive access, customer-defined
  locations, named insights, and threshold-based webhook alerts. Used by airlines, on-demand logistics platforms, agriculture,
  energy, and the US Air Force, Tomorrow.io's API is designed for ETA-aware route planning, geofenced alerting, agentic workflows,
  and large-scale operational decisioning under weather risk.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-02'
  method: derived
image: ''
humanURL: https://www.tomorrow.io
baseURL: https://api.tomorrow.io/v4
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-17
tags:
- Weather
- Forecast
- Climate
- Risk Management
- Air Quality
- Pollen
- Lightning
- Severe Weather
- Maps
- Routing
- Satellite
- Microsatellites
- Radar
- Geospatial
- Alerts
- Historical Weather
- Fire
- Flood
- Routes
- Map Tiles
- Aviation
- Maritime
- Public APIs
tags_raw:
- Weather
- Forecast
- Climate
- Risk
- Air Quality
- Pollen
- Lightning
- Severe Weather
- Maps
- Routing
- Satellite
- Microsatellites
- Radar
- Geospatial
- Alerts
- Historical Weather
- Fire
- Flood
- Routes
- Map Tiles
- Aviation
- Maritime
- Public APIs
kind: contract
access: 3rd-Party
created: '2026-05-24'
modified: '2026-05-24'
specificationVersion: '0.23'
type: Index
apis:
- aid: tomorrow-io:tomorrow-io-historical-api
  name: Tomorrow.io Historical Weather API
  tags:
  - Weather
  - Historical
  - Climate
  - Climate Normals
  humanURL: https://docs.tomorrow.io/reference/historical
  baseURL: https://api.tomorrow.io/v4
  properties:
  - url: https://docs.tomorrow.io/reference/historical
    type: Documentation
  - url: https://docs.tomorrow.io/reference/historical-weather-retrieval
    type: APIReference
  - url: https://docs.tomorrow.io/reference/climate-normals
    type: APIReference
  - url: openapi/tomorrow-io-historical-api-openapi.yml
    type: OpenAPI
  description: Retrieve historical weather observations and monthly climate normals for any point or polygon on Earth using
    the same field catalog as the realtime and forecast APIs.
- aid: tomorrow-io:tomorrow-io-events-api
  name: Tomorrow.io Events API
  tags:
  - Weather
  - Event
  - Severe Weather
  - Lightning
  - Floods
  - Fire
  tags_raw:
  - Weather
  - Events
  - Severe Weather
  - Lightning
  - Floods
  - Fire
  humanURL: https://docs.tomorrow.io/reference/retrieve-events-basic
  baseURL: https://api.tomorrow.io/v4
  properties:
  - url: https://docs.tomorrow.io/reference/retrieve-events-basic
    type: APIReference
  - url: https://docs.tomorrow.io/reference/severe-weather-events
    type: Documentation
  - url: openapi/tomorrow-io-events-api-openapi.yml
    type: OpenAPI
  - url: json-schema/tomorrow-io-event-schema.json
    type: JSONSchema
  - url: examples/tomorrow-io-events-example.json
    type: Examples
  description: Retrieve severe weather events, fires, floods, lightning swarms, and custom vector events affecting a point
    or geometry.
- aid: tomorrow-io:tomorrow-io-route-api
  name: Tomorrow.io Weather on Routes API
  tags:
  - Weather
  - Route
  - Logistics
  - ETA
  humanURL: https://docs.tomorrow.io/reference/route
  baseURL: https://api.tomorrow.io/v4
  properties:
  - url: https://docs.tomorrow.io/reference/route
    type: APIReference
  - url: openapi/tomorrow-io-route-api-openapi.yml
    type: OpenAPI
  - url: examples/tomorrow-io-route-example.json
    type: Examples
  description: Retrieve weather along an arbitrary polyline of waypoints at the times each segment is expected to be traversed
    — powers route optimization, logistics planning, and ETA-aware hazard detection.
- aid: tomorrow-io:tomorrow-io-locations-api
  name: Tomorrow.io Locations API
  tags:
  - Weather
  - Location
  - Geometry
  tags_raw:
  - Weather
  - Locations
  - Geometry
  humanURL: https://docs.tomorrow.io/reference/list-locations
  baseURL: https://api.tomorrow.io/v4
  properties:
  - url: https://docs.tomorrow.io/reference/list-locations
    type: APIReference
  - url: openapi/tomorrow-io-locations-api-openapi.yml
    type: OpenAPI
  - url: json-schema/tomorrow-io-location-schema.json
    type: JSONSchema
  description: Manage saved locations (points, polygons, lines) referenced by ``locationId`` across the Tomorrow.io APIs,
    with tag-based cohorts for fleet, customer, or asset organization.
- aid: tomorrow-io:tomorrow-io-alerts-api
  name: Tomorrow.io Alerts API
  tags:
  - Weather
  - Alerts
  - Webhook
  - Notification
  tags_raw:
  - Weather
  - Alerts
  - Webhooks
  - Notifications
  humanURL: https://docs.tomorrow.io/reference/create-alerts
  baseURL: https://api.tomorrow.io/v4
  properties:
  - url: https://docs.tomorrow.io/reference/create-alerts
    type: APIReference
  - url: openapi/tomorrow-io-alerts-api-openapi.yml
    type: OpenAPI
  - url: json-schema/tomorrow-io-alert-schema.json
    type: JSONSchema
  - url: examples/tomorrow-io-alert-example.json
    type: Examples
  description: Create and manage threshold-based weather alerts that evaluate Tomorrow.io data layers against custom rules
    for linked locations and deliver notifications via webhook, email, and the Tomorrow.io app.
- aid: tomorrow-io:tomorrow-io-insights-api
  name: Tomorrow.io Insights API
  tags:
  - Weather
  - Insights
  - Rules
  humanURL: https://docs.tomorrow.io/reference/list-insights
  baseURL: https://api.tomorrow.io/v4
  properties:
  - url: https://docs.tomorrow.io/reference/list-insights
    type: APIReference
  - url: openapi/tomorrow-io-insights-api-openapi.yml
    type: OpenAPI
  - url: json-schema/tomorrow-io-insight-schema.json
    type: JSONSchema
  description: Define and manage reusable Insights — named rules combining Tomorrow.io data layers, operators, and thresholds
    — that power the Events and Alerts APIs.
- aid: tomorrow-io:tomorrow-io-forecast-api
  name: Tomorrow.io Forecast API
  description: 1h / 1d step weather forecast for the next 14 days.
  humanURL: https://docs.tomorrow.io/reference/welcome
  baseURL: https://api.tomorrow.io/v4
  tags:
  - Forecast
  properties:
  - type: OpenAPI
    url: openapi/tomorrow-io-forecast-api-openapi.yml
  - type: Documentation
    url: https://docs.tomorrow.io/reference/welcome
  - type: APIReference
    url: https://docs.tomorrow.io/reference/realtime-weather
  - type: APIReference
    url: https://docs.tomorrow.io/reference/weather-forecast
  - type: APIReference
    url: https://docs.tomorrow.io/reference/timelines-overview
  - type: JSONSchema
    url: json-schema/tomorrow-io-weather-values-schema.json
  - type: JSONStructure
    url: json-structure/tomorrow-io-weather-values-structure.json
  - type: Examples
    url: examples/tomorrow-io-realtime-example.json
  - type: Examples
    url: examples/tomorrow-io-timelines-example.json
  - type: Documentation
    url: https://docs.tomorrow.io/reference/map-overview
  - type: APIReference
    url: https://docs.tomorrow.io/reference/retrieve-a-tile-basic
- aid: tomorrow-io:tomorrow-io-maps-api
  name: Tomorrow.io Maps API
  description: Web Mercator tile service for weather layers.
  humanURL: https://docs.tomorrow.io/reference/welcome
  baseURL: https://api.tomorrow.io/v4
  tags:
  - Maps
  properties:
  - type: OpenAPI
    url: openapi/tomorrow-io-maps-api-openapi.yml
  - type: Documentation
    url: https://docs.tomorrow.io/reference/welcome
  - type: APIReference
    url: https://docs.tomorrow.io/reference/realtime-weather
  - type: APIReference
    url: https://docs.tomorrow.io/reference/weather-forecast
  - type: APIReference
    url: https://docs.tomorrow.io/reference/timelines-overview
  - type: JSONSchema
    url: json-schema/tomorrow-io-weather-values-schema.json
  - type: JSONStructure
    url: json-structure/tomorrow-io-weather-values-structure.json
  - type: Examples
    url: examples/tomorrow-io-realtime-example.json
  - type: Examples
    url: examples/tomorrow-io-timelines-example.json
  - type: Documentation
    url: https://docs.tomorrow.io/reference/map-overview
  - type: APIReference
    url: https://docs.tomorrow.io/reference/retrieve-a-tile-basic
- aid: tomorrow-io:tomorrow-io-realtime-api
  name: Tomorrow.io Realtime API
  description: Current weather conditions for a point or location.
  humanURL: https://docs.tomorrow.io/reference/welcome
  baseURL: https://api.tomorrow.io/v4
  tags:
  - Real-Time
  tags_raw:
  - Realtime
  properties:
  - type: OpenAPI
    url: openapi/tomorrow-io-realtime-api-openapi.yml
  - type: Documentation
    url: https://docs.tomorrow.io/reference/welcome
  - type: APIReference
    url: https://docs.tomorrow.io/reference/realtime-weather
  - type: APIReference
    url: https://docs.tomorrow.io/reference/weather-forecast
  - type: APIReference
    url: https://docs.tomorrow.io/reference/timelines-overview
  - type: JSONSchema
    url: json-schema/tomorrow-io-weather-values-schema.json
  - type: JSONStructure
    url: json-structure/tomorrow-io-weather-values-structure.json
  - type: Examples
    url: examples/tomorrow-io-realtime-example.json
  - type: Examples
    url: examples/tomorrow-io-timelines-example.json
  - type: Documentation
    url: https://docs.tomorrow.io/reference/map-overview
  - type: APIReference
    url: https://docs.tomorrow.io/reference/retrieve-a-tile-basic
- aid: tomorrow-io:tomorrow-io-timelines-api
  name: Tomorrow.io Timelines API
  description: Flexible timeline retrieval across any combination of fields and timesteps.
  humanURL: https://docs.tomorrow.io/reference/welcome
  baseURL: https://api.tomorrow.io/v4
  tags:
  - Timelines
  properties:
  - type: OpenAPI
    url: openapi/tomorrow-io-timelines-api-openapi.yml
  - type: Documentation
    url: https://docs.tomorrow.io/reference/welcome
  - type: APIReference
    url: https://docs.tomorrow.io/reference/realtime-weather
  - type: APIReference
    url: https://docs.tomorrow.io/reference/weather-forecast
  - type: APIReference
    url: https://docs.tomorrow.io/reference/timelines-overview
  - type: JSONSchema
    url: json-schema/tomorrow-io-weather-values-schema.json
  - type: JSONStructure
    url: json-structure/tomorrow-io-weather-values-structure.json
  - type: Examples
    url: examples/tomorrow-io-realtime-example.json
  - type: Examples
    url: examples/tomorrow-io-timelines-example.json
  - type: Documentation
    url: https://docs.tomorrow.io/reference/map-overview
  - type: APIReference
    url: https://docs.tomorrow.io/reference/retrieve-a-tile-basic
- aid: tomorrow-io:tomorrow-io-climate-api
  name: Tomorrow.io Climate API
  description: 30-year climate normals for a location.
  humanURL: https://docs.tomorrow.io/reference/historical
  baseURL: https://api.tomorrow.io/v4
  tags:
  - Climate
  properties:
  - type: OpenAPI
    url: openapi/tomorrow-io-climate-api-openapi.yml
common:
- type: Website
  url: https://www.tomorrow.io/
- type: AgenticAccess
  url: agentic-access/tomorrow-io-agentic-access.yml
- type: DomainSecurity
  url: security/tomorrow-io-domain-security.yml
- type: Authentication
  url: authentication/tomorrow-io-authentication.yml
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/tomorrowio/overview
- type: Arazzo
  url: arazzo/tomorrow-io-alert-threshold-tuning-workflow.yml
  name: Tomorrow.io Alert Threshold Tuning
- type: Arazzo
  url: arazzo/tomorrow-io-decommission-location-workflow.yml
  name: Tomorrow.io Decommission a Monitored Location
- type: Arazzo
  url: arazzo/tomorrow-io-historical-and-normals-analysis-workflow.yml
  name: Tomorrow.io Historical and Climate Normals Analysis
- type: Arazzo
  url: arazzo/tomorrow-io-insight-driven-alert-setup-workflow.yml
  name: Tomorrow.io Insight-Driven Alert Setup
- type: Arazzo
  url: arazzo/tomorrow-io-insight-scoped-event-query-workflow.yml
  name: Tomorrow.io Insight-Scoped Event Query
- type: Arazzo
  url: arazzo/tomorrow-io-location-severe-weather-events-workflow.yml
  name: Tomorrow.io Location Severe Weather Events
- type: Arazzo
  url: arazzo/tomorrow-io-map-tile-precipitation-overlay-workflow.yml
  name: Tomorrow.io Map Tile Precipitation Overlay
- type: Arazzo
  url: arazzo/tomorrow-io-realtime-then-timelines-deep-dive-workflow.yml
  name: Tomorrow.io Realtime Snapshot then Timelines Deep Dive
- type: Arazzo
  url: arazzo/tomorrow-io-realtime-vs-climate-normals-workflow.yml
  name: Tomorrow.io Realtime vs Climate Normals Benchmark
- type: Arazzo
  url: arazzo/tomorrow-io-route-weather-hazard-scan-workflow.yml
  name: Tomorrow.io Route Weather Hazard Scan
- type: Arazzo
  url: arazzo/tomorrow-io-saved-location-realtime-forecast-workflow.yml
  name: Tomorrow.io Saved Location Realtime and Forecast
- type: Arazzo
  url: arazzo/tomorrow-io-tag-location-cohort-workflow.yml
  name: Tomorrow.io Tag and Monitor a Location Cohort
- url: https://www.tomorrow.io
  type: Portal
- url: https://docs.tomorrow.io
  name: Tomorrow.io API Documentation
  type: Documentation
- url: https://docs.tomorrow.io/reference/welcome
  name: API Reference
  type: APIReference
- url: https://app.tomorrow.io/development/keys
  name: API Keys
  type: Authentication
- url: https://app.tomorrow.io/signup
  name: Sign Up
  type: Signup
- url: https://app.tomorrow.io/signin
  name: Console
  type: Console
- url: https://docs.tomorrow.io/recipes
  name: Recipes Sandbox
  type: Sandbox
- url: https://docs.tomorrow.io/reference/getting-started
  name: Getting Started
  type: GettingStarted
- url: https://docs.tomorrow.io/reference/rate-limiting
  name: Rate Limiting & Tokens
  type: RateLimits
- url: https://docs.tomorrow.io/reference/error-handling
  name: Error Handling
  type: ErrorCodes
- url: https://docs.tomorrow.io/reference/release-notes
  name: Release Notes
  type: ChangeLog
- url: https://docs.tomorrow.io/llms.txt
  name: LLMs.txt
  type: Documentation
- url: https://docs.tomorrow.io/reference/tomorrow-io-mcp
  name: Tomorrow.io MCP Server
  type: Documentation
- url: https://www.tomorrow.io/pricing/
  name: Pricing
  type: Pricing
- url: https://www.tomorrow.io/legal/tos/
  name: Terms of Service
  type: TermsOfService
- url: https://www.tomorrow.io/legal/privacy-policy/
  name: Privacy Policy
  type: PrivacyPolicy
- url: https://support.tomorrow.io
  name: Help Center
  type: Support
- url: https://www.tomorrow.io/blog/
  name: Blog
  type: Blog
- url: https://github.com/Tomorrow-IO-API
  name: Tomorrow.io API GitHub Organization
  type: GitHubOrganization
- url: https://github.com/Tomorrow-IO-API/tomorrow-postman
  name: Official Postman Collection
  type: SDKs
- url: https://github.com/Tomorrow-IO-API/tomorrow-samples
  name: Official Code Samples
  type: SDKs
- url: https://github.com/Tomorrow-IO-API/tomorrow-route-mapbox
  name: Weather Navigator Sample (Mapbox)
  type: SDKs
- url: https://github.com/Tomorrow-IO-API/tomorrow-timelines-widget
  name: Tomorrow.io Timelines Widget
  type: SDKs
- url: https://github.com/Tomorrow-IO-API/tomorrow-events-charts
  name: Insights Dashboard Sample
  type: SDKs
- url: https://github.com/Tomorrow-IO-API/tomorrow-api-proxy
  name: Google Cloud Function API Proxy Sample
  type: SDKs
- url: https://github.com/Tomorrow-IO-API/tomorrow-netlify
  name: Netlify Edge Sample
  type: SDKs
- url: https://github.com/Tomorrow-IO-API/tomorrow-map-spectrums
  name: Map Spectrums and Legends
  type: SDKs
- url: https://github.com/Tomorrow-IO-API/tomorrow-weather-codes
  name: Official Weather Icons
  type: SDKs
- url: https://github.com/Tomorrow-IO-API/climate-normals
  name: Climate Normals Visualization (Python)
  type: SDKs
- url: https://www.linkedin.com/company/tomorrow-io
  type: LinkedIn
- url: https://twitter.com/tomorrow_io
  type: Twitter
- url: rules/tomorrow-io-rules.yml
  type: SpectralRules
- url: vocabulary/tomorrow-io-vocabulary.yml
  type: Vocabulary
- url: json-ld/tomorrow-io-context.jsonld
  type: JSONLD
- url: plans/tomorrow-io-plans-pricing.yml
  type: Plans
- url: rate-limits/tomorrow-io-rate-limits.yml
  type: RateLimits
- url: finops/tomorrow-io-finops.yml
  type: FinOps
- name: Features
  type: Features
  data:
  - name: 60+ Hyperlocal Data Layers
    description: Core weather, air quality, pollen, solar, soil, fire, flood, lightning, maritime, aviation, and road layers
      retrievable at point, polygon, or polyline geometry.
  - name: Proprietary Microsatellite Weather Radar Constellation
    description: Tomorrow.io operates its own constellation of space-based weather radars to fill gaps in terrestrial radar
      coverage, especially over oceans and the developing world.
  - name: Minutely Forecast Resolution
    description: 60-minute minute-by-minute precipitation forecast in addition to hourly and daily timelines (Enterprise tier).
  - name: 14-Day Forecast Horizon
    description: Daily forecast out to 14 days on Enterprise plans, 5 days on Free.
  - name: Climate Normals
    description: Monthly long-term averages for benchmarking current conditions against typical patterns.
  - name: Severe Weather and Custom Events
    description: First-class API for severe weather phenomena plus customer-defined vector events for proprietary hazard models.
  - name: Threshold Alerts with Webhooks
    description: Define rule-based alerts that fire webhooks and emails when conditions cross thresholds for linked locations.
  - name: Weather Map Tiles
    description: Web Mercator PNG tiles for visualizing every data layer in Mapbox, MapLibre, Leaflet, OpenLayers, Google
      Maps.
  - name: Weather on Routes
    description: ETA-aware weather retrieval along a polyline of waypoints for logistics, aviation, and maritime planning.
  - name: MCP Server
    description: Official Tomorrow.io Model Context Protocol server for agentic AI access to the Weather API.
  - name: 99.9% Uptime SLA
    description: Enterprise SLA with rate-limit response headers exposed for programmatic monitoring.
  - name: LLMs.txt Indexed Documentation
    description: Tomorrow.io publishes an LLMs.txt index of every documentation page and endpoint for AI agents.
- name: UseCases
  type: UseCases
  data:
  - name: Route Optimization and Logistics
    description: ETA-aware weather along truck, drone, and last-mile routes to avoid storms, ice, and visibility hazards.
  - name: Aviation Planning
    description: Airline operations centers and dispatch use Tomorrow.io for icing, turbulence, low-level wind shear, and
      aerodrome forecasts.
  - name: Energy Forecasting
    description: Wind and solar generation forecasting, load forecasting under heat events, and outage management.
  - name: Agriculture
    description: Soil moisture, evapotranspiration, frost, and growing-degree-day analytics for farm operations.
  - name: Severe Weather Alerting
    description: Geofenced alerting for tropical storms, severe thunderstorms, hail, lightning, and flash floods.
  - name: Sports and Outdoor Events
    description: Game-day, race-day, and venue operations under lightning, heat, and precipitation risk.
  - name: Insurance and Climate Risk
    description: Historical and climate-normals data for parametric insurance pricing and physical climate risk modeling.
  - name: Data Science
    description: Bulk historical timelines for training operational decision models and backtesting weather-sensitive workflows.
  - name: Maritime Operations
    description: Wave height, swell direction, and sea-state forecasting for shipping, offshore energy, and fisheries.
  - name: On-Demand Platforms
    description: Surge demand modeling and worker-safety alerting for rideshare, delivery, and on-demand services.
- name: Integrations
  type: Integrations
  data:
  - name: Mapbox
    description: Drop Tomorrow.io map tiles directly into Mapbox GL JS basemaps; official tomorrow-route-mapbox sample.
  - name: MapLibre
    description: Open-source slippy-map client compatible with the Tomorrow.io Maps API.
  - name: Leaflet
    description: Compatible with the Tomorrow.io Maps XYZ tile service.
  - name: Google Cloud Functions
    description: Official tomorrow-api-proxy sample demonstrates key-safe proxy deployment on GCP.
  - name: Netlify Edge
    description: Official tomorrow-netlify sample for serverless edge proxying.
  - name: Postman
    description: Official Tomorrow.io Postman collection covering every v4 endpoint.
  - name: Model Context Protocol (MCP)
    description: Official Tomorrow.io MCP server for plugging Weather, Forecast, Timelines, and Events into AI agents.
  - name: Webhooks
    description: First-class webhook delivery for alert notifications.
  - name: Insights Dashboard
    description: tomorrow-events-charts open-source dashboard demonstrating the Events API.
- name: Solutions
  type: Solutions
  data:
  - name: Weather API for Developers
    description: Self-serve developer API with 60+ data layers, Postman collection, and MCP server.
  - name: Tomorrow.io Resilience Platform
    description: Operational dashboards, alerts, and decision automation built on top of the Tomorrow.io Weather API.
  - name: Aviation Resilience
    description: Vertical solution for airline operations centers, dispatch, and aerodrome operations.
  - name: Energy Resilience
    description: Vertical solution for utility load forecasting, generation forecasting, and outage management.
  - name: Logistics Resilience
    description: Vertical solution for fleet, freight, and last-mile delivery routing under weather risk.
  - name: Government and Defense
    description: Tomorrow.io serves the US Air Force and other defense and government customers with operational weather intelligence
      and proprietary space-based weather radar.
- type: GitHubOrganization
  url: https://github.com/tomorrowio
  title: Tomorrow.io (corporate org)
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
  X-twitter: https://x.com/kinlane

Tomorrow.io API — frequently asked questions

Does Tomorrow.io have an API?

Yes. APIs.io lists 11 APIs from Tomorrow.io, including Tomorrow.io Historical Weather API, Tomorrow.io Events API and Tomorrow.io Weather on Routes API, and 8 more.

Is there an OpenAPI specification for the Tomorrow.io API?

Yes. APIs.io indexes 11 OpenAPI specifications for Tomorrow.io, each linked for download from this page.

How do I authenticate with the Tomorrow.io API?

Tomorrow.io uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Tomorrow Io Authentication.

How much does the Tomorrow.io API cost?

APIs.io lists 4 pricing plans for Tomorrow.io, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does Tomorrow.io have an MCP server?

Yes. APIs.io lists 1 MCP server for Tomorrow.io: Remote MCP server at api.tomorrow.io over HTTP.

Is the Tomorrow.io API ready for AI agents?

Tomorrow.io has a Kin Score of 56.3 out of 100 (strong) and an Agent Readiness score of 37.4 (agent-ready), scored by API Evangelist on 2026-11-02.

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