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Cubist MMI API

The MMI API from Cubist — 6 operation(s) for mmi.

Cubist MMI API is one of 30 APIs that Cubist publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include MMI. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 7 operations across 6 paths, and defines 49 schemas. It is described by OpenAPI 3.2.0, at version v0.1.0.

Requests are made against 2 base URLs: https://gamma.signer.cubist.dev, https://prod.signer.cubist.dev.

7 operations 6 paths 49 schemas 1 DELETE3 GET3 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
v0.1.0
Base URL
https://prod.signer.cubist.dev
Authentication
API Key, API Key
Resource Areas
1

Authentication & Security 2

Cubist MMI API declares 2 security schemes for authenticating requests. An API key is passed in the header as Authorization (Oidc). An API key is passed in the header as Authorization (SignerAuth). By default, every request must be authenticated.

  • Oidc — OIDC tokens allow users to authenticate using a third-party service. These are exchanged for signer session tokens.
  • SignerAuth — Signing API end-points use session tokens for auth. Specifically, with each request you need to use the \token\ from your signer session (which you create with…

Paths & Operations 7

Across 6 paths, the API surfaces 7 operations — 1 DELETE, 3 GET, 3 POST. Each is listed below with its method, path, parameters, and response codes.

MMI 7
GET
/v0/mmi/v3/.well-known/jwks.json
JWKS endpoint for MMI
mmiJwkSet → 200default
POST
/v0/mmi/v3/json-rpc
MMI JSON-RPC endpoint
mmi body → 200default
GET
/v0/org/{org_id}/mmi/v3/messages
List pending MMI requests
mmiMessageList 1 param → 200default
GET
/v0/org/{org_id}/mmi/v3/messages/{msg_id}
Get an MMI request
mmiMessageGet 2 params → 200default
DELETE
/v0/org/{org_id}/mmi/v3/messages/{msg_id}
Delete an MMI request
mmiMessageDelete 2 params → 200default
POST
/v0/org/{org_id}/mmi/v3/messages/{msg_id}/reject
Reject an MMI request
mmiMessageReject 2 params body → 200default
POST
/v0/org/{org_id}/mmi/v3/messages/{msg_id}/sign
Approve and sign an MMI request
mmiMessageSign 2 params body → 200default

Schemas 49

The contract defines 49 schemas that model the data the API accepts and returns. The most detailed are MfaRequestInfo (11 properties), ClientSessionInfo (7 properties), MmiStatus (6 properties), Status (6 properties). Each schema is shown below with its type and property counts.

PreconditionErrorOwnCodes
string
MmiMetadata
object
6 properties
BadRequestErrorCode
string
MfaRequiredArgs
object
5 properties 3 required
PreconditionErrorCode
AcceptedValueCode
string
PolicyErrorOwnCodes
string
TypedData
object
Represents the [EIP-712](https://eips.ethereum.org/EIPS/eip-712) typed data object. Typed data is a JSON object containing type information, domain separator p…
4 properties 4 required
MmiRejectRequest
object
1 property
AcceptedValue
Different responses we return for success status codes.
Id
string
ForbiddenErrorCode
string
ErrorObj
object
3 properties 2 required
UnauthorizedErrorCode
string
SignerErrorOwnCodes
string
SignDryRunArgs
object
2 properties 1 required
EpochDateTime
integer
DateTime measured in seconds since unix epoch. A wrapper type for serialization that encodes a [SystemTime] as a [u64] representing the number of seconds since…
B32
string
Wrapper around a zeroizing 32-byte fixed-size array
PendingMessageInfo
Extended information about an existing MMI request.
ErrorResponse
object
The structure of ErrorResponse must match the response template that AWS uses
5 properties 2 required
NotFoundErrorCode
string
ConflictErrorCode
string
CoinbaseDryRunArgs
object
2 properties 2 required
TypedTransaction
EIP-2718 typed transaction, including EIP-1559 transactions ({ "type": "0x02" ... }), and legacy transactions ({ "type": "0x00" ... }). All values in the trans…
SignerErrorCode
BybitDryRunArgs
object
3 properties 3 required
PolicyErrorCode
MfaType
string
Different types that can be used to approve an MFA request
SolanaTxCmp
object
1 property
TimeoutErrorCode
string
HttpRequest
object
Information about the request. Captures all the relevant info (including the request body) about requests that require MFA. We use this to verify that when a r…
3 properties 2 required
HttpRequestCmp
How to compare HTTP requests when verifying MFA receipt (see [MfaRequest::verifyrequest])
EvmTxCmp
object
3 properties
TransactionAndStatus
SignedMessage
object
5 properties 4 required
Response
object
JSON-RPC response object
4 properties 1 required
NewSessionResponse
object
Information about a new session, returned from multiple endpoints (e.g., login, refresh, etc.).
5 properties 4 required
BinanceDryRunArgs
object
2 properties 2 required
ClientSessionInfo
object
Session information sent to the client. This struct works in tandem with its server-side counterpart [SessionData].
7 properties 7 required
Request
object
JSON-RPC request object
4 properties 2 required
BadGatewayErrorCode
string
ApprovalInfo
object
1 property 1 required
Receipt
object
Receipt that an MFA request was approved.
3 properties 3 required
SignatureVersion
string
EvmTxDepositErrorCode
string
MfaRequestInfo
object
Returned as a response from multiple routes (e.g., 'get mfa', 'approve mfa', 'approve totp').
11 properties 6 required
Status
object
6 properties 4 required
MmiStatus
object
6 properties 4 required
InternalErrorCode
string

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

cubist-mmi-api-openapi.yml Raw ↑

Other APIs Cubist publishes across the network.

Cubist Account API
Cubist Accounts API
Cubist Audit API
Cubist AuthMigration API
Cubist Babylon API
Cubist Contact API
Cubist Cube3Signer API
Cubist Identity API
Cubist Internal API
Cubist Keys API
Cubist Keys In Role API
Cubist Login API
Where this information came from

This is an independent, third-party profile of Cubist MMI API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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