# Meteomatics Weather API vs The Weather Company Data APIs

> The Weather Company Data APIs scores 52.6 (D) on agent readiness against Meteomatics Weather API's 49.6 (D), and leads in 2 of 7 scored categories. Meteomatics Weather API leads on agent ergonomics, security & auth, maintenance & community and transparency & trust. Both do…

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- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-08

The Weather Company Data APIs scores 52.6 (D) on agent readiness against Meteomatics Weather API's 49.6 (D), and leads in 2 of 7 scored categories. Meteomatics Weather API leads on agent ergonomics, security & auth, maintenance & community and transparency & trust. Both do weather current.

- Meteomatics Weather API: grade D, 49.6/100, rank #606 of 722. Markdown https://www.anchorterminal.com/tools/meteomatics.md · JSON https://www.anchorterminal.com/api/v1/tools/meteomatics.json
- 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

## Which one, for what

### Meteomatics Weather API (D)

Good for: Companies in energy, aviation, insurance and logistics that need many models, long history, polygon and route queries and an SLA, and will buy by contract.

Ahead on:
- Agent ergonomics, 80 against 54
- Security & auth, 54 against 48
- Maintenance & community, 42 against 36
- Transparency & trust, 59 against 49

Watch for: No public price, free tier or self-serve signup found. Credentials arrive by email after a sales conversation

### 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:
- Reliability, 73 against 34
- Payments & pricing, 20 against 0

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.


## Score by category

| Category | Weight | Meteomatics Weather API | The Weather Company Data APIs | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 34 | 73 | The Weather Company Data APIs +39 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 71 | 67 | Meteomatics Weather API +4 |
| Agent ergonomics | 13% (16.2 this run) | 80 | 54 | Meteomatics Weather API +26 |
| Security & auth | 14% (17.5 this run) | 54 | 48 | Meteomatics Weather API +6 |
| Payments & pricing | 10% (12.5 this run) | 0 | 20 | The Weather Company Data APIs +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 42 | 36 | Meteomatics Weather API +6 |
| Transparency & trust | 7% (8.8 this run) | 59 | 49 | Meteomatics Weather API +10 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **49.6 · D** | **52.6 · D** | |

## Facts side by side

| Fact | Meteomatics Weather API | The Weather Company Data APIs |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Meteomatics AG | The Weather Company, LLC |
| Hosted endpoint | `https://api.meteomatics.com` | `https://api.weather.com` |
| Transports | HTTP | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | Proprietary service under Meteomatics' general terms and conditions. The Python connector on GitHub is MIT | Proprietary service. Use is under a content licensing agreement with The Weather Company, which is not published |
| Tools exposed | 9 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-08-24 | 2026-09-14 |
| Terms last updated | no date given | no document linked |
| Privacy policy last updated | no date given | couldn't be read |
| 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 | 56 stars, 16k PyPI/wk | none |

## Verdicts

**Meteomatics Weather API.** A public OpenAPI file, a hosted MCP server whose nine tools are all marked read-only, a published SLA with compensation and ISO 27001 certification suit company use. Access needs a sales contract, with no public price, free tier or self-serve signup found, no status page, and REST calls that authenticate with a username and password.

**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.

## Before you call either

### Meteomatics Weather API

1. Ask the account owner for credentials first. There is no signup, and both the REST API and the MCP server need a Meteomatics account with API access
2. Build REST URLs as validdatetime/parameters/location/format, for example `2026-10-08T00:00:00Z/t_2m:C/52.52,13.40/json`. Parameter names carry their unit after a colon
3. Keep each query to 10 locations and 10 parameters unless the contract says otherwise, and use POST when a GET URL passes 2,000 characters
4. Send credentials or the token in the `Authorization` header. Avoid the documented `access_token` query parameter, which puts the token in URLs and logs
5. Read `/user_stats_json` before a large job. It reports queries sent and the contract's limits, and 429 means a limit is spent
6. Treat reserved values such as -888 and -999 as invalid or missing data, and shrink the request when a 408 arrives after the 300-second timeout

### 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.

## Questions

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

The Weather Company Data APIs scores 52.6 (D) on agent readiness against Meteomatics Weather API's 49.6 (D), and leads in 2 of 7 scored categories. Meteomatics Weather API leads on agent ergonomics, security & auth, maintenance & community and transparency & trust.

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

Meteomatics Weather API takes an API key or an OAuth sign-in. The Weather Company Data APIs needs an API key.

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

Yes. Meteomatics Weather API has a hosted endpoint at https://api.meteomatics.com and The Weather Company Data APIs at https://api.weather.com.


## For agents

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

## Other comparisons with Meteomatics Weather API or The Weather Company Data APIs

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- [NOAA National Weather Service API (api.weather.gov) vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/nws-api-vs-weather-company.md)
- [OpenWeather One Call API vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/openweather-one-call-vs-weather-company.md)
- [Pirate Weather vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/pirate-weather-vs-weather-company.md)
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