Pricing
Start free with a one-time lifetime allowance, then pay only when you grow: a flat monthly subscription, or pay-as-you-go (PAYG) per call. Every paid tier delivers up to ~85% AI token savings — recalled memory replaces context you would otherwise re-send on every request.
Paid plans settle by card via Stripe, or in USDC.e on COTI V2 mainnet (canonical, no premium) — directly from your wallet, or via a gasless signed-authorization email if you don’t hold COTI for gas.
Plans
Free
$0 one-time lifetime allowance
- Fixed lifetime allotment of writes, reads & shares — not a trial, never resets
- No card required
- Sealed under a key only you hold
- Upgrade to a monthly plan anytime on the same key
Pro
$50 / month
- 25,000 remembers / mo
- 250,000 recalls / mo
- 250 sharing contracts / mo
- 1-year audit retention
- Up to ~85% AI token savings
Pro Fast
$250 / month
- 250,000 remembers / mo
- 2,500,000 recalls / mo
- 2,500 sharing contracts / mo
- Fast storage lanes
- 1-year audit retention
- Up to ~85% AI token savings
Enterprise
$15,000 / month floor
- Unlimited remembers & recalls
- 5,000 sharing contracts / mo
- SLA included
- Bespoke audit retention (default 7 years)
- SHM (Super-Human Memory) add-on available
- Up to ~85% AI token savings
Enterprise Fast
Contact for pricing
- Unlimited remembers & recalls
- Unlimited sharing contracts
- Fast storage lanes
- SLA included
- Bespoke audit retention (default 7 years)
- SHM (Super-Human Memory) add-on available
- Up to ~85% AI token savings
Paid plans are monthly subscriptions; cancel anytime. Subscription tiers hard-cap at their monthly quotas — no surprise overage billing. Token-savings figure reflects agent workloads where recalled memory replaces re-sent context; actual savings vary by workload. SHM (Super-Human Memory) — an Enterprise-tier add-on for semantic recall, concurrent-thread continuity, and consolidation — is announced here; availability and terms are discussed directly.
Free
Activate a free, one-time lifetime memory allowance — no card. It is a fixed allotment of writes, reads, and shares that never resets or refills (it is not a trial). Every memory is sealed under a key only you hold, from the first cell.
Activate from the command line with a one-time GitHub device sign-in that confirms a unique person — the sign-in stays in your browser and no token is ever handed to SAIHM:
SAIHM_TIER=FREE npx -y @saihm/mcp-server-pro free-joinUpgrade to a monthly plan any time on the same key — every memory you already have persists. Full walkthrough on the production client: @saihm/mcp-server-pro.
Pay-as-you-go (PAYG)
No subscription. Each call settles on-chain at write time.
| Operation | USD / call |
|---|---|
| Remember | $0.10 ($10 per 100 writes) |
| Recall | $0.05 ($10 per 200 reads) |
| Forget (cryptographic erasure) | $0.10 ($10 per 100 forgets) |
| Sharing — TEMPORARY (under 24 hours, limited) | $1.00 / grantee |
| Sharing — PERMANENT | $10.00 / grantee |
| Sharing — SYNDICATE | $25.00 / grantee |
PAYG break-even vs Pro ($50/mo): Remember at 500 writes/month; Recall at 1,000 reads/month. Below those volumes, PAYG is cheaper than Pro on the corresponding operation. Pro’s value is in its 1-year audit retention, dedicated call quota, and included sharing contracts.
PAYG audit retention: 30 days. Longer retention requires a subscription tier.
Billing and refunds
All payments are final. Subscriptions and pay-as-you-go calls are non-refundable. Cancel anytime to stop the next renewal; the current paid period continues to its end with no further charges.
Sharing by plan
| Plan | Sharing | Allowance |
|---|---|---|
| Pro | yes | 250 contracts/mo |
| Pro Fast | yes | 2,500 contracts/mo |
| Enterprise | yes | 5,000 contracts/mo |
| Enterprise Fast | yes | unlimited |
| PAYG | yes | per-grantee (see PAYG table) |
A share grants the named grantee read access to a specific cell only. Receiving a share does not change the grantee’s own subscription tier and does not confer re-share rights; only the original cell-holder may extend or revoke access.
Payment methods
Pay by card. That is the whole answer for most people — no wallet, no crypto, no gas, nothing to bridge.
- Card, worldwide — Stripe. Pay a monthly tier with any Stripe-supported card or wallet at Join. Renews monthly, cancel any time.
- Card and M-PESA, Africa — Paystack. Pay in Kenyan shillings by card, or push a one-time M-PESA payment from your phone. An M-PESA payment buys one month outright rather than starting a subscription, so there is nothing to cancel later.
- Stablecoin, if you prefer it. Settle on-chain in USDC.e instead. Useful if you already hold it or you want to pay without a card at all — and it is how pay-as-you-go settles. Details below.
The card rails your browser is offered are read live from the server, so you are never shown a payment method that is not actually accepting payments at that moment.
Your AI agent can also do this for you: say “Join SAIHM at the Pro tier” and it handles tier selection.
Compare payment methods
Side-by-side comparison of your payment options. Most people want the first row and can stop reading there. Choosing whether you need a memory layer at all is a different question — the agent memory decision matrix covers that.
| Method | Added by SAIHM | What you need | How long | Best for |
|---|---|---|---|---|
| Card — the default | ||||
| Card, worldwide Stripe | Nothing | A card | Instant | Most people |
| Card or M-PESA, Africa Paystack | Nothing | A card Paystack accepts, or an M-PESA phone. Priced in Kenyan shillings | Instant by card; a phone confirmation for M-PESA | Paying in shillings, or paying from a phone rather than a card |
| Stablecoin — if you prefer it | ||||
| USDC.e, direct | Nothing | USDC.e plus a little COTI for gas | Seconds | People already holding it on-chain |
| USDC.e, gasless by email | Nothing | USDC.e, and no gas token at all | A few minutes | Holding the stablecoin but not the gas |
Coming from Ethereum L1? See below for the bridging-in path.
Paying in stablecoin instead
You never have to touch this. It exists because some people would rather pay from a wallet than a card, and because pay-as-you-go settles on-chain.
Two routes: pay USDC.e directly if you already hold it and a little COTI for gas, or sign an authorization and email it if you hold the stablecoin but no gas token. Both cost the same as the card price — there is no crypto discount and no crypto premium.
Already holding USDC on Ethereum? Bridging in is covered below.
Coming from Ethereum L1?
If you hold USDC on Ethereum L1, self-bridge it to USDC.e on COTI V2 via Hyperlane Nexus, then your tier payment in USDC.e settles normally. SAIHM does not orchestrate the bridge — you sign the bridge transaction and pay the bridge fee, the same way you would for any cross-chain transfer.
If you hold a different Ethereum stablecoin (USDT, DAI, etc.), swap to USDC on Ethereum first using any DEX of your choice, then bridge as above. The swap is your decision, your DEX, your transaction; SAIHM is not in the swap path.
Verified route: Ethereum L1 USDC → Hyperlane Nexus → USDC.e on COTI V2 (mainnet-verified bidirectional, 2026-04-29).
What SAIHM does: accepts your USDC.e payment on COTI V2 once it arrives at your tier address. What SAIHM does not do: custody on Ethereum, hold balances on Ethereum, sign your bridge transaction, or perform a swap on your behalf.
Only USDC.e on COTI V2 mainnet settles your tier. Assets that arrive in any other form — USDT, DAI, native ETH, native COTI sent to a USDC.e tier address, or anything bridged to a non-USDC.e contract — will not credit your account. If you are unsure, complete the bridge first, verify the asset on public block explorer as USDC.e at the contract 0xf1Feebc4376c68B7003450ae66343Ae59AB37D3C, and then send to your tier address.
Gasless via signed authorization (email)
What: sign a message in your wallet (off-chain, no gas), email the signed envelope to join@saihm.coti.global, and SAIHM settles your tier on-chain in USDC.e at zero customer gas. Mainnet-validated 2026-05-05.
Best for: you already hold USDC.e on COTI V2 but don’t want to manage COTI for gas.
Your AI agent can do this for you — say “Join SAIHM at the Pro tier” and it handles the signing and the email. Join SAIHM →
Compliance reports
Compliance reports are a separate ancillary service. See compliance-reports for the available kinds, coverage, authorization paths, and example outputs.
Ready?
Common questions
What does the free tier include?
A fixed one-time lifetime allowance of writes, reads and shares. It is an allowance rather than a trial: it never resets and it does not expire, and no card is required. Cells are sealed under a key only you hold, and you can upgrade to a monthly plan later on that same key.
How can I pay?
By card through Stripe, by card and M-PESA through Paystack in Africa, or in USDC.e on COTI V2 mainnet, which is canonical and carries no premium. Subscriptions are recurring and cancellable.
What if I want to pay in stablecoin but hold no COTI for gas?
You can send a signed authorization by email and pay zero gas, so there is no need to acquire or bridge a gas token first. Holders coming from Ethereum L1 can also self-bridge USDC to USDC.e.
Should I choose a subscription or pay-as-you-go?
A flat monthly subscription suits predictable, continuous use. Pay-as-you-go charges per call and suits intermittent or bursty use. Both run on the same key, so the choice is reversible.
Do I lose my memory if I change plans?
No. Paid tiers run on the same key you already hold, so nothing is reinstalled, re-keyed or migrated when you upgrade, downgrade or cancel.