That depends on what you’re trying to build. Any time agents are interacting, DIDComm is involved, but there are a few primary cases we can use to model what you might need. 

Whether the action is establishing a connection or issuing a credential, a negotiation protocol takes place which consumes DIDComm. For example, establishing a connection with a peer uses 3DIDComm messages. Depending on the case, verifying credentials can use up to 4 DIDComm messages. 

So if you need to onboard 1,000 users and issue them all a credential, you will probably need about 3,000 DIDComm messages to establish the connections, 3,000 DIDComm messages to issue them credentials, and another few thousand DIDComm messages set aside for chat between the agents. Sothe developer tier would be the right fit. 

Still have questions about the number of DIDComm you’ll need? Contact us!

DIDComm is the fundamental communication mechanism of decentralized identity. Streetcredprovides a managed agency service on behalf of your organization. Each agent message that’s sent and received consumes our API and has a marginal cost associated with the compute resources used. This is also a fair way to ensure that decentralized identity is affordable, no matter the use case. 

Why do you cap the amount of DIDComm I can use in a given month? 

We don’t cap your usage. We simply set up tiers to price our service based on usage. If you are in the developer tier but end up needing additional DIDComm, you can go over the 10,000 DIDCommmessages allotted – we will not cut you off. You’ll just pay a small overage fee per DIDComm message over 10,000 that you use. 

Then you’ll pay a small overage “a’la carte” rate for the additional DIDComm you use. The overage fee is simple; we charge 20% over your original rate in increments of 1000 messages.  

Example: Suppose you’ve subscribed to the developer tier. If you end up using 11,843 DIDCommmessages in the month, you’ll be charged $99 for the first 10,000 messages. The remainder (1,843) is charged in increments of 1,000. There are two increments of 1,000 remaining. The price per thousand is calculated based on 20% above your normal rate of $0.0099 per message ($99 divided by 10,000 messages) which is equal to $0.01188 per message. Multiply this by the two increments of 1,000 and you get $23.76. So your total bill for the month would be $99 + $23.76 = $122.76.

Credentials are held on a user’s device in a secure digital wallet. But in order to be verified remotely and ensure interoperability, cryptographic primitives are anchored to a publicly readable ledger. Our API lets you easily write interoperable schemas, credential definitions, decentralized identifiers, and revocation registries to public ledgers like Sovrin. These things must be written (or “anchored”) to the ledger in order to issue credentials.