Cap the similarity scorer. Keep the provider key.
An STS, cosine-similarity, or semantic-similarity batch can keep calling a standing provider secret after the pair scores are written. Issue a Till key for that job with a required request ceiling so remaining capacity stays readable and the worker can stop.
Isolate the scorer traffic, not the provider account.
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Issue a disposable Till key for the similarity job
Set the request ceiling from expected pair comparisons and retries, then add optional token, estimated-spend, expiry, and IP bounds when the scorer needs a tighter envelope.
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The provider credential stays behind Till
The similarity job uses a Till key, not an unconstrained provider secret in the worker process. When the job is retired, revoke or let expiry stop that key without rotating every connection.
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This is not a vector store or matcher
Till does not score STS pairs, compute cosine similarity, or replace your embedding pipeline. It is a hosted control layer in front of 12 AI providers: a required request ceiling and optional token, spend, expiry, and IP controls.
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Pro: $59/month, 25 scoped keys, 25,000 monthly activations
Those are plan limits. Public signup is closed; request Pro beta access. Provider inference is billed by the provider. Till charges a platform subscription.
Connect provider accounts once. Each similarity job gets a disposable Till key with a required request ceiling and optional token, estimated-spend, expiry, and IP controls. Till is not a zero-knowledge vault, a vector index, or a replacement for provider billing or IAM.
These are plan limits, not usage claims.
Pro
Scale
Public anonymous signup is closed. New accounts are approved and provisioned manually. Existing customers can open the dashboard. Compare the full ledger on pricing.
Finish the queue. End the key.
Request Pro beta access. Till is a controlled beta; accounts are onboarded manually. Do not start from self-serve checkout.