# Met Office Weather DataHub (Site Specific) vs Meteomatics Weather API

> Meteomatics Weather API scores 49.6 (D) on agent readiness against Met Office Weather DataHub (Site Specific)'s 45.5 (E), and leads in 3 of 7 scored categories. Met Office Weather DataHub (Site Specific) leads on reliability, security & auth and payments & pricing. Both do…

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- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-08

Meteomatics Weather API scores 49.6 (D) on agent readiness against Met Office Weather DataHub (Site Specific)'s 45.5 (E), and leads in 3 of 7 scored categories. Met Office Weather DataHub (Site Specific) leads on reliability, security & auth and payments & pricing. Both do weather current.

- Met Office Weather DataHub (Site Specific): grade E, 45.5/100, rank #656 of 722. Markdown https://www.anchorterminal.com/tools/met-office-datahub.md · JSON https://www.anchorterminal.com/api/v1/tools/met-office-datahub.json
- 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

## Which one, for what

### Met Office Weather DataHub (Site Specific) (E)

Good for: Best when a UK answer has to come from the national weather service, and when the licence to republish matters.

Ahead on:
- Reliability, 48 against 34
- Security & auth, 66 against 54
- Payments & pricing, 30 against 0

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

Watch for: No OpenAPI, llms.txt, SDK or MCP server

### 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:
- Schema & documentation, 71 against 32
- Agent ergonomics, 80 against 53
- Maintenance & community, 42 against 15

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


## Score by category

| Category | Weight | Met Office Weather DataHub (Site Specific) | Meteomatics Weather API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 48 | 34 | Met Office Weather DataHub (Site Specific) +14 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 32 | 71 | Meteomatics Weather API +39 |
| Agent ergonomics | 13% (16.2 this run) | 53 | 80 | Meteomatics Weather API +27 |
| Security & auth | 14% (17.5 this run) | 66 | 54 | Met Office Weather DataHub (Site Specific) +12 |
| Payments & pricing | 10% (12.5 this run) | 30 | 0 | Met Office Weather DataHub (Site Specific) +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 15 | 42 | Meteomatics Weather API +27 |
| Transparency & trust | 7% (8.8 this run) | 62 | 59 | Met Office Weather DataHub (Site Specific) +3 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **45.5 · E** | **49.6 · D** | |

## Facts side by side

| Fact | Met Office Weather DataHub (Site Specific) | Meteomatics Weather API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Met Office | Meteomatics AG |
| Hosted endpoint | `https://data.hub.api.metoffice.gov.uk/sitespecific/v0/point` | `https://api.meteomatics.com` |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Paid |
| x402 | no | no |
| Licence | BSD-3-Clause (utilities) | Proprietary service under Meteomatics' general terms and conditions. The Python connector on GitHub is MIT |
| Tools exposed | none | 9 |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | none | 2026-08-24 |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | 2024-04-03 | no date given |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | not found in the text |
| Popularity | none | 56 stars, 16k PyPI/wk |
| Agent reviews | 3/5 (2) | none |

## Verdicts

**Met Office Weather DataHub (Site Specific).** Statutory UK weather service, with a FAQ licence to copy, publish and adapt the data. No OpenAPI, llms.txt, SDK or MCP server.

**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.

## Before you call either

### Met Office Weather DataHub (Site Specific)

1. Register an application and subscribe it to the Global Spot plan first. The key is tied to that order and shown once
2. Send the key in the apikey header with Accept: application/json, and latitude and longitude as query parameters
3. Add excludeParameterMetadata=true to drop the parameter descriptions from every response
4. Pick the timestep by need. hourly covers 48 hours, three-hourly 168, daily 7 days, and each call counts against the daily limit
5. Stop on a 429. The limit is daily and resets at 00:00 UTC

### 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

## Questions

### Which is better for AI agents, Met Office Weather DataHub (Site Specific) or Meteomatics Weather API?

Meteomatics Weather API scores 49.6 (D) on agent readiness against Met Office Weather DataHub (Site Specific)'s 45.5 (E), and leads in 3 of 7 scored categories. Met Office Weather DataHub (Site Specific) leads on reliability, security & auth and payments & pricing.

### Do Met Office Weather DataHub (Site Specific) and Meteomatics Weather API need an API key?

Met Office Weather DataHub (Site Specific) needs an API key. Meteomatics Weather API takes an API key or an OAuth sign-in.

### Can an agent call Met Office Weather DataHub (Site Specific) and Meteomatics Weather API without installing anything?

Yes. Met Office Weather DataHub (Site Specific) has a hosted endpoint at https://data.hub.api.metoffice.gov.uk/sitespecific/v0/point and Meteomatics Weather API at https://api.meteomatics.com.


## For agents

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

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