# The Weather Company Data APIs vs Weatherbit API

> Weatherbit API scores 57.7 (C) on agent readiness against The Weather Company Data APIs's 52.6 (D), and leads in 5 of 7 scored categories. The Weather Company Data APIs leads on security & auth and maintenance & community. Both do weather current. Category scores, facts…

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- Updated: 2026-10-08

Weatherbit API scores 57.7 (C) on agent readiness against The Weather Company Data APIs's 52.6 (D), and leads in 5 of 7 scored categories. The Weather Company Data APIs leads on security & auth and maintenance & community. Both do weather current.

- The Weather Company Data APIs: grade D, 52.6/100, rank #565 of 722. Markdown https://www.anchorterminal.com/tools/weather-company.md · JSON https://www.anchorterminal.com/api/v1/tools/weather-company.json
- Weatherbit API: grade C, 57.7/100, rank #466 of 722. Markdown https://www.anchorterminal.com/tools/weatherbit.md · JSON https://www.anchorterminal.com/api/v1/tools/weatherbit.json

## Which one, for what

### The Weather Company Data APIs (D)

Good for: A business that wants one contract for global forecasts, 4 km current conditions, alerts, imagery, aviation and deep history, and that can go through sales.

Ahead on:
- Security & auth, 48 against 39
- Maintenance & community, 36 against 21

Watch for: No self-serve signup. The trial is requested through a form, is limited to enterprise customers, and the Buy now button opens a contact form.

### Weatherbit API (C)

Good for: An application that needs forecasts plus specialised datasets (air quality, lightning, soil and degree days) from one paid subscription, queried by coordinates.

Ahead on:
- Reliability, 91 against 73
- Schema & documentation, 72 against 67
- Agent ergonomics, 61 against 54
- Payments & pricing, 30 against 20
- Transparency & trust, 63 against 49

Also in its favour:
- Free to start without a card

Watch for: The key is accepted only as the `key` query parameter, and the spec lists plain http as a scheme


## Score by category

| Category | Weight | The Weather Company Data APIs | Weatherbit API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 73 | 91 | Weatherbit API +18 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 67 | 72 | Weatherbit API +5 |
| Agent ergonomics | 13% (16.2 this run) | 54 | 61 | Weatherbit API +7 |
| Security & auth | 14% (17.5 this run) | 48 | 39 | The Weather Company Data APIs +9 |
| Payments & pricing | 10% (12.5 this run) | 20 | 30 | Weatherbit API +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 36 | 21 | The Weather Company Data APIs +15 |
| Transparency & trust | 7% (8.8 this run) | 49 | 63 | Weatherbit API +14 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **52.6 · D** | **57.7 · C** | |

## Facts side by side

| Fact | The Weather Company Data APIs | Weatherbit API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | The Weather Company, LLC | Weatherbit LLC |
| Hosted endpoint | `https://api.weather.com` | `https://api.weatherbit.io/v2.0` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Paid | Freemium |
| x402 | no | no |
| Licence | Proprietary service. Use is under a content licensing agreement with The Weather Company, which is not published | Proprietary service under Weatherbit's terms of service. The free plan's data is under a Creative Commons non-commercial licence. The Python SDK is MIT |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| Last release | 2026-09-14 | 2025-08-01 |
| Terms last updated | no document linked | 2025-05-01 |
| Privacy policy last updated | couldn't be read | 2023-12-26 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | none | 78 PyPI/wk |

## Verdicts

**The Weather Company Data APIs.** A wide weather data API with 168 API references built from OpenAPI documents, global 4 km current conditions, hourly history from June 2015 and a status page with component history. Keys come only through a sales-reviewed trial or contract, travel only in the URL, and the terms that govern the API are not published.

**Weatherbit API.** A read-only weather API with a Swagger 2.0 spec, quota headers on every response and a status page showing 100 per cent on three API monitors over 90 days. The key travels only in the query string, the free plan allows 50 requests a day for non-commercial use, and the last dated API announcement is 1 August 2025.

## Before you call either

### The Weather Company Data APIs

1. Send `units`, `language` and `format=json` with a location on every v3 call, plus `Accept-Encoding: gzip`, which the usage guide marks as required.
2. Keep the key out of logs and client-side code, because it travels in the query string as `apiKey`.
3. Treat a 401 as either a bad key, an endpoint outside the key's package or an exceeded limit, and treat a 204 as no data for the query.
4. Each forecast duration (`3day` to `15day`) is a separate entitlement. Request only durations the contract covers.
5. Use `/v3/aggcommon` to combine up to 10 products in one request. Each product and each location still counts as one call.

### Weatherbit API

1. Pass lat and lon. City, postal code and station lookups are accepted, but the docs recommend coordinates and mark station ID as use with caution
2. Read X-RateLimit-Remaining and X-RateLimit-Reset on each response. Daily quotas reset at 00:00 UTC and a spent quota returns 429 until then
3. Treat HTTP 204 with an empty body as no data found, not as an error
4. Split historical requests into ranges of one month or less. History needs the Plus plan or higher and has its own daily quota
5. Keep the key out of logs. It is part of the URL on every call, so always use https://api.weatherbit.io/v2.0

## Questions

### Which is better for AI agents, The Weather Company Data APIs or Weatherbit API?

Weatherbit API scores 57.7 (C) on agent readiness against The Weather Company Data APIs's 52.6 (D), and leads in 5 of 7 scored categories. The Weather Company Data APIs leads on security & auth and maintenance & community.

### Do The Weather Company Data APIs and Weatherbit API need an API key?

Both need an API key.

### Can an agent call The Weather Company Data APIs and Weatherbit API without installing anything?

Yes. The Weather Company Data APIs has a hosted endpoint at https://api.weather.com and Weatherbit API at https://api.weatherbit.io/v2.0.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/weather-company-vs-weatherbit.json, and with the fewest tokens: https://www.anchorterminal.com/compare/weather-company-vs-weatherbit.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "weather-company", "b": "weatherbit"}`. From a terminal: `anchor compare weather-company weatherbit`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/weather-company.json and https://www.anchorterminal.com/api/v1/tools/weatherbit.json

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