- Free allowance
- Yes. You can use it for free.
- Verdict
- fails: quotathe free allowance is too small to matter
- Cost
- free tier
- Identity
- anonymousno card, no phone
- Binding limit
- retention-clampedAccess Domain TTL: valid for 8.00 hours for TCP and UDP tunnels
- Evidence
- documented4 sources; a first-party page was read and the sentence quoted
- Freshness
- stale on 2026-11-23checked 2026-10-23 (live); stale on 2026-11-23
| Free tier | Yes. You can use it for free. However, in the case of free users, there are restrictions on usage time, transmission speed, and amount of transmission data. unit unlimited; metered on unstated |
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| Price | USD 0 |
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| Limits | - retention-clamped (binding) Access Domain TTL: valid for 8.00 hours for TCP and UDP tunnels source
- volume-quota unpublished restriction on amount of transmission data source
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| Binding | retention-clamped Two constraints sit on the free tier: the assigned hostname expires after 8 hours, and the operator states a cap on data volume whose figure is unpublished. |
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| Identity | anonymous The client assigns a Device UUID and needs no account, email or card on the page read; the download page lists only operating-system binaries. |
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| Egress | The vendor states restrictions on usage time, transmission speed, and amount of transmission data, with no numbers published. The support forum answers the same question with: At this moment, no restriction because it is under alpha status.; ingress: tcp+udp free allowance: none published |
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| Interface | cli ./mudcat udp --local-port 25565 --remote-port 25566. |
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| Tooling | Single binary from mudcat.io/download, subcommands tcp, http and udp. |
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| Composes with | Carries a WireGuard handshake to a free VM, or exposes a game server directly; the 8-hour hostname means it needs a supervisor that re-registers and re-points DNS. |
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| Reliability | Alpha software at version 0.0.3; hostnames expire every 8 hours; the vendor reserves the right to cap time, speed and data without publishing numbers. |
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| Notes | The alpha status is the important fact: the free tier works today with no stated cap, and the caps are promised but unwritten. Version 0.0.3 and a 2024 forum thread mean this is not a 2026 launch, only a 2026-live one. The conservative verdict is kept: the 8-hour lease and an unpublished byte cap both defeat the test, and neither can be designed against. |
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| Evidence note | documented The free-tier byte and speed limits are unpublished; one measured transfer and a reconnect after 8 hours would move this from documented to measured. |
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| Parsed numbers | - has-free-tier 1
- retention-clamped 8 hours
- price USD 0
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