Squiid vs HashiCorp Vault
Vault is serious infrastructure: dynamic secrets, PKI, encryption as a service, leases and policy. Squiid opens provider accounts, holds their keys and bills the usage.
Short answer. If you need dynamic database credentials, a private certificate authority, encryption as a service and auditable policy, use Vault. Nothing here replaces it. Squiid solves the problem that exists before Vault has anything to store: the twelve provider accounts somebody had to open and pay for.
The one-line difference. Vault issues, leases and revokes credentials for infrastructure you operate. Squiid holds credentials for services you buy, on one prepaid balance and one invoice.
Side by side
| HashiCorp Vault | Squiid | |
|---|---|---|
| What it covers | Secrets infrastructure: key-value storage, dynamic secrets, PKI, encryption as a service, leases and revocation, policies and audit devices. | The whole stack: models, databases, auth, storage, email, SMS, search, jobs and payments. |
| Non-AI services | Any credential for any system, mostly infrastructure you run yourself. | Yes. Postgres, object storage, email, phone numbers, error tracking. |
| Provisioning of accounts | It generates credentials inside systems it is configured against, such as a database you already own. It does not open vendor accounts for you. | Yes. Squiid opens the account and holds the credential. |
| Key custody and rotation | Very strong. Short-lived credentials, leases and revocation, with policy control over who can read them. | Squiid holds and rotates the provider credentials upstream. Your project holds one gateway key, useless outside the gateway. |
| Billing model | Open source, enterprise and managed cloud editions, plus the cost of running it. Provider bills stay with providers. | Prepaid credits at par: $1 of credit is $1 at the provider. Subscriptions pass through at list price. |
| Fee | No fee on provider usage. The cost is licensing and operations. | Free $0/mo + 15% at top-up. Solo $19.97/mo from 8%, falling to 3.5% with spend. Team from $29.97/seat, one point lower. Custom 3% or less. |
| One invoice PDF | A Vault or cloud invoice if you pay for one, plus one invoice per provider. | Yes. One monthly PDF: credits, plan, subscriptions. |
| Spend caps and pause-on-zero | No. It has no concept of spend. | Yes. Alerts at 75, 90 and 100%, capped auto top-up, pause at zero. |
| Works with coding agents | Yes, through agents, sidecars and templating, though more setup than an environment variable. | Yes. One variable and one base URL convention for every service. |
| Self-host option | Yes, and most deployments are. A managed cloud option exists. | No. Hosted only. Leaving is a transfer where the provider supports one, a documented export otherwise. See handover. |
| Best for | Organisations with real infrastructure, a security team and compliance obligations. | Projects that would rather hold one credential than organise twelve, and have the usage billed in the same place. |
When to pick HashiCorp Vault instead
Pick Vault when you need dynamic secrets against systems you run. A credential created for one workload, leased for an hour and revoked automatically is stronger than any static key.
Pick it when you need PKI. Issuing and rotating internal certificates is a genuine Vault speciality with no equivalent in a billing gateway.
Pick it when policy and audit are the deliverable. Path policies, identity-based access and audit devices are what you show an auditor, and Squiid is not a compliance product.
Pick it when the organisation is large enough that operating it is reasonable. Vault is real infrastructure with real operational requirements.
When Squiid is the better fit
Squiid is the better fit for the part Vault assumes has happened. Vault issues credentials for systems that exist; somebody still had to sign up for Supabase, verify a Resend domain and buy a Twilio number.
It is also the better fit for cost control. Vault has no idea what a credential spends. Prepaid credits and a pause at zero stop an agent turning a bug into an invoice.
And for a small team it requires no operations. Vault is a cluster, a storage backend, unsealing, upgrades and an on-call rota: right at a bank, heavy for a three-person product.
Use both
Large organisations end up with both. Vault governs credentials for internal infrastructure, issues certificates and handles encryption; Squiid holds the external vendor relationships and their billing. If Vault already exists, the question is whether opening and reconciling vendor accounts costs enough to be worth a monthly fee.
Questions people ask
Is Squiid a secrets manager?
No. It holds provider credentials upstream as part of running the service relationship, but has no policy engine, leases, PKI or audit devices. Compare it on provisioning and billing.
Could Vault generate my Supabase or Twilio credentials?
Only for systems it has a configured engine against, generally ones you already own. It cannot create the vendor account, agree the pricing or pay the bill, which is the work Squiid does.
Does a gateway key undermine a Vault deployment?
It should not. The gateway key is one value in Vault with a shorter blast radius than the credentials it replaces, and rotating it touches nothing upstream.
What about the licence change and the community fork?
Worth checking before you commit: the terms depend on edition and version and have changed in recent years. It is also why some teams look at Infisical.
We have Vault. What would Squiid actually add?
Fewer vendor accounts, one prepaid balance and one invoice PDF a month. If your pain is the credential lifecycle rather than procurement, Squiid adds little and you should skip it.
Vault stores it.
Squiid never handed it to you.
One account, one key, one bill, with credentials that stay upstream.