Home / Egress and tunnels
stunl
www.stunl.com/Tunnelegress/stunlJSONcomparereport an errorprovider JSON
- Free allowance
- Free $0 /month - 2GB bandwidth/month - 1 tunnels - 1 hour sessions - HTTP/HTTPS, WebSocket tunneling - Multi-port tunnels - Custom tunnel IDs - 1 reserved subdomain - HTTP Inspector with webhook verification.
- Verdict
- fails: quotathe free allowance is too small to matter
- Cost
- free tier
- Identity
- emailno card, no phone
- Binding limit
- volume-quota2 GB monthly bandwidth; 100 MB and 30 minutes in anonymous mode
- Evidence
- documented3 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 | Free $0 /month - 2GB bandwidth/month - 1 tunnels - 1 hour sessions - HTTP/HTTPS, WebSocket tunneling - Multi-port tunnels - Custom tunnel IDs - 1 reserved subdomain - HTTP Inspector with webhook verification. unit GB; metered on downloaded-bytes |
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| Price | USD 0 |
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| Limits | - volume-quota (binding) 2 GB monthly bandwidth source
- volume-quota (binding) 100 MB and 30 minutes in anonymous mode source
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| Binding | volume-quota 2 GB is 0.0018 TiB, so the monthly allowance is spent in about an hour of 1 TiB/month traffic; the 1-hour session cap binds even earlier on a long transfer. |
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| Identity | email An API key from portal.stunl.com. The docs say: Free tier with no credit card required. Anonymous mode needs no key at all. |
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| Egress | 2GB bandwidth/month on Free; the docs add Anonymous Mode at 100 MB and 30 minutes.; ingress: http-only free allowance: 2GB bandwidth/month on Free; the docs add Anonymous Mode at 100 MB and 30 minutes. |
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| Interface | cli, rest stunl -port 3000 -id myapp; API key from portal.stunl.com. |
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| Tooling | brew install stunl/tap/stunl or stunl.com/install.sh; stunl.yaml config file. |
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| Composes with | Hosts an MCP or webhook endpoint on a free VM; for UDP it requires the $10 plan, which is cheaper than most VPS options but still a bill. |
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| Reliability | Free tunnels expire after an hour; anonymous tunnels after 30 minutes and 100 MB. |
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| Notes | The service markets itself at AI agents and MCP servers, which explains the HTTP-first free tier. UDP exists but is two tiers above free. |
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| Evidence note | documented UDP on Pro is documented but not tested; a Pro trial run would confirm the UDP listener is a real raw port rather than a WebSocket frame. |
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| Parsed numbers | - has-free-tier 1
- volume-quota 2 GB
- volume-quota 100 MB
- price USD 0
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Evidence 3
| date | source | what it proved |
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| 2026-10-23 | www.stunl.com/ | Free tier 2 GB/month, 1 tunnel, HTTP/HTTPS and WebSocket only; Pro at $10/month adds TCP and UDP, 50 GB and no session limit. |
| 2026-10-23 | stunl.com/docs/getting-started | Free Tier: HTTP and WebSocket tunnels, 2GB monthly bandwidth, 60-minute sessions, no credit card. |
| 2026-10-23 | stunl.com/docs/cli-reference | Protocol flag accepts http, tcp and udp; anonymous mode is limited to HTTP, 100MB and 30 minutes. |
More fields 7
| wg path | inside-udp |
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| wg detail | UDP is a Pro feature. The CLI reference documents -protocol with the values http, tcp and udp, and the Pro tier lists HTTP, HTTPS, WebSocket, TCP, UDP tunneling, so a WireGuard datagram can only be carried on a paid plan. |
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| ingress | http-only |
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| volume tib month | 0.0018 |
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| volume stated | 2GB bandwidth/month on Free; the docs add Anonymous Mode at 100 MB and 30 minutes. |
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| bytes transit | yes |
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| transit note | The stunl.io edge terminates TLS and relays to the local agent. |
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Unknown values 2
- per object cap stated: the field does not apply to this kind of offer
- retention stated: the field does not apply to this kind of offer