Published units. Same price for pass or fail.
A completed check costs $0.05 whichever paid tool you call, and
assay_batch meters each valid processed variant at that same rate. Within either
published unit a pass and a fail cost exactly the same, because what you buy is the assay and
never the outcome. A separately issued certificate is $9.90 on its own lifecycle unit,
the free tier stays free for everyone, and every amount here is the one the live pricing
registry serves.
Audit us before you ever pay.
Six tools never cost anything — the demo with its golden specimens, the graveyard digest, the public calibration record, certificate verification, the payload preflight and the provider-protocol checklist. The free tier exists so you can check that we are any good first.
Demo & golden specimens
Known-answer test cases with the full response format — catch us being wrong before you pay. Rate-limited, no account.
Graveyard & calibration
Anonymised family mortality plus the calibration v0 population/maturity state. Machine-readable, no account.
Verify, lint, audit us
Check any issued certificate with hosted platform trust at /verify; offline, the raw signature is checkable, while full trust additionally needs the signed bundle and independent pins. Lint a payload with assay_preflight before spending a check; judge any provider — us included — with assay_provider_protocol. Free for everyone, forever.
Metering units are explicit.
Most paid MCP tools
Validate a signal or a backtest, run forensics, audit a claimed track
record, pre-register or evaluate a call. All 15 paid tools carry the same amount,
so which one you reach for is a question of what you need answered rather than of budget, and
assay_gauntlet is the all-in-one whose single check runs every graded stage.
Any signed-in account allowance and the subsequent MCP charge
come from the live pricing registry;
public MCP tools use an API key. The separate x402 surface is the REST gauntlet route
POST /x402/v1/gauntlet.
Raw submissions are not retained — the trial keeps a one-way fingerprint, the verdict and coarse trial statistics. what is kept, precisely
assay_batch
A batch can contain up to 25 variants. Each valid processed variant is journaled and metered individually; declined or structurally invalid variants are disclosed under the runtime contract rather than hidden inside a flat parent-call price.
Certificate issuance is a separate REST lifecycle action and costs $9.90. Offline raw-signature checks and the hosted full-trust verifier remain free; full offline platform trust additionally needs an independently pinned root, the signed trust bundle and complete key/revocation history.
The live price of every tool is always machine-readable at api.alphaassay.com/v1/meta/pricing.
Top up in fixed steps, or spend the allowance first.
Every account opens with 3 free checks, which is enough to put a signal you actually care about through a real trial before you decide whether our verdicts are worth paying for. After that, credit packs run $10, $25, $50, $100 or $200, and anything from $100 up carries 5% extra credit. Your exact balance and the allowance still standing are in your account dashboard rather than on this page, because only the runtime knows them.
Loading more than that? Talk to us — volume terms are a conversation, not a form: hello@alphaassay.com.
Machine-readable prices, explicit transports.
The live price of every public MCP tool is one GET away,
so your agent can gate on cost before it calls with its API key. Accountless x402 is narrower:
only POST /x402/v1/gauntlet uses the 402 payment handshake and quote.
$ curl -s https://api.alphaassay.com/v1/meta/pricing
{
"mcp_tools": {
// every canonical assay_* name carries its live amount and billing unit
},
"mcp_tool_counts": { "total": 21, "free": 6, "paid": 15 },
// assay_batch: per valid processed variant; most paid MCP tools: per check
}Excerpt — mcp_tools prices
every public tool under its canonical name, mechanically joinable to the live tools/list. The
x402 quote applies only to the REST gauntlet route, not to the whole MCP registry.
Three honest answers.
Can I top up an account?
Yes — packs of $10, $25, $50, $100 or $200, with 5% extra credit from $100 up. More volume than that is a conversation, not a form: hello@alphaassay.com.
What if the verdict is „fail"?
You pay the same. You buy the trial, not a flattering outcome — and every fail ships with the diagnosis of what broke, which is usually worth more than a pass.
Does a „pass" mean I will make money?
No, and we never claim it. A pass means your signal survived a statistical trial that most signals fail. Methodology audits are not investment advice.