{"rid":"egress/fly-io","card":{"rid":"egress/fly-io","eid":"fly","topic":"egress","slug":"fly-io","provider":"Fly.io","url":"https://docs.fly.io/networking/udp-and-tcp","domain":"fly.io","category":"paas l4 port","tier":"paid","verdict":"paid-only","vorder":3,"grp":"paid","confidence":"documented","binding":"volume-quota","identity_kind":"card","identity_basis":"stated","needs_card":1,"needs_phone":0,"needs_id":0,"needs_institution":0,"country":null,"crypto":null,"interfaces":"cli,rest","egress_metered":1,"per_object_bytes":null,"retention_days":null,"verified_at":"2026-10-23T00:00:00.000Z","verified_basis":"live","checked_on":"2026-10-23","stale_on":"2026-11-22","n_evidence":2,"usd_month":null,"usd_per_tb_month":2,"summary":"Fly.io bills for the resources you use, with no monthly platform fee. The smallest always-on app costs $2.19 per 30 days.","duplicate_of":null,"n_unknown":2},"record":{"topic":"egress","slug":"fly-io","provider":"Fly.io","url":"https://docs.fly.io/networking/udp-and-tcp","category":"paas l4 port","tier":"paid","free_tier":{"stated":"Fly.io bills for the resources you use, with no monthly platform fee. The smallest always-on app costs $2.19 per 30 days.","unit":"none","metered_on":"none","source_url":"https://fly.io/docs/about/pricing/","read_on":"2026-10-23","notes":""},"per_object_cap":{"stated":"not applicable","bytes":null,"source_url":"https://docs.fly.io/networking/udp-and-tcp","notes":""},"retention":{"stated":"not applicable","days":null,"source_url":"https://docs.fly.io/networking/udp-and-tcp","notes":""},"egress":{"terms":"No free allowance. Outbound data $0.02/GB in North America and Europe, inbound free; dedicated IPv4 $2/month.; ingress: tcp+udp","metered":true,"free_allowance":"No free allowance. Outbound data $0.02/GB in North America and Europe, inbound free; dedicated IPv4 $2/month.","price_per_tb":null,"source_url":"https://docs.fly.io/networking/udp-and-tcp"},"interface":["cli","rest"],"interface_detail":"flyctl and the Machines API; services declared in fly.toml.","tooling":"flyctl, fly.toml, wg-quick inside the Machine.","chaining":"Fly Machine running wg-quick on a dedicated IPv4 is a working endpoint; pairs with any free client.","limits":[{"kind":"volume-quota","value":"no free allowance; $0.02/GB egress plus $2/month dedicated IPv4","source":"https://fly.io/docs/about/pricing/"}],"limits_note":"","binding":"volume-quota","binding_note":"1 TiB/month of egress is $20.48 at $0.02/GB, plus $2/month for the dedicated IPv4 that UDP requires, plus machine time.","identity_cost":{"kind":"card","detail":"An account with a payment method; the pricing page prices every resource, with no free tier to sign up for.","country":"None"},"reliability_note":"\"Fly will not rewrite the port; Fly only rewrites the IP address for UDP packets.\" A couple dozen bytes of MTU are taken for UDP.","confidence":"documented","confidence_note":"A measured handshake would confirm the endpoint; the price and the UDP requirement are already documented.","evidence":[{"url":"https://docs.fly.io/networking/udp-and-tcp","date":"2026-10-23","proved":"\"You need a dedicated IPv4 address. You can't use a shared IPv4 address or an IPv6 address for UDP.\""},{"url":"https://fly.io/docs/about/pricing/","date":"2026-10-23","proved":"Dedicated IPv4 $2/month; outbound $0.02/GB NA and EU; \"no monthly platform fee\""}],"verdict":"paid-only","verified_at":"2026-10-23T00:00:00.000Z","price_per_tb_month":"USD 2","notes":"Technically the cleanest WireGuard host: a real UDP port, a stable dedicated IP, and port preservation. The reason it is not a finding is that nothing is free. Cheapest realistic WireGuard endpoint found anywhere at about $2-4/month.","extras":{"wg_path":"inside-udp","wg_detail":"\"You need a dedicated IPv4 address. You can't use a shared IPv4 address or an IPv6 address for UDP.\" The app binds UDP to fly-global-services on the same external port.","ingress":"tcp+udp","volume_tib_month":0,"volume_stated":"No free allowance. Outbound data $0.02/GB in North America and Europe, inbound free; dedicated IPv4 $2/month.","bytes_transit":"yes","transit_note":"Fly's edge forwards UDP to the Machine on the same port."}},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"},{"path":"$.limits[0].value","kind":"limit:volume-quota","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"},{"path":"$.price_per_tb_month","kind":"price-per-tb","num":2,"unit":"TB","per":"month","currency":"USD","usd":2,"fx_date":null,"parse":"ok"}],"unknown":[["$.per_object_cap.stated","not-applicable"],["$.retention.stated","not-applicable"]],"history":[],"drift":[]}