List contract transitions
Returns a paged list of transitions for a contract, optionally scoped to the changes between two specific snapshots. Each page carries hydrated entities, so no follow-up GetTransitions is needed.
Request Body
application/json
TypeScript Definitions
Use the request body type in TypeScript.
Response Body
application/json
application/json
application/json
application/json
application/json
application/json
curl -X POST "https://loading/contracts.v1.Contracts/ListTransitions" \ -H "Content-Type: application/json" \ -d '{ "contractId": "EBESExQVFhcYGRobHB0eHw==", "fromSnapshotId": "6", "toSnapshotId": "7", "limit": 100, "cursor": "" }'{
"transitions": [
{
"contractId": "EBESExQVFhcYGRobHB0eHw==",
"fromSnapshotId": "6",
"toSnapshotId": "7",
"id": "dHJhbnNpdGlvbi0wMDAx",
"type": "added",
"marketHashName": "AK-47 | Redline (Field-Tested)",
"createdAt": "2026-04-01T12:15:00Z",
"updatedAt": "2026-04-01T12:15:00Z"
}
],
"nextCursor": ""
}{
"code": "invalid_argument",
"message": "The request was malformed, such as a missing required field or an unparseable cursor."
}{
"code": "unauthenticated",
"message": "The request lacks a valid API key in the Authorization header."
}{
"code": "permission_denied",
"message": "The API key is not allowed to perform this action on this workspace."
}{
"code": "resource_exhausted",
"message": "The request was rate limited. Slow down and retry later."
}{
"code": "internal",
"message": "An internal server error occurred."
}GetTransitions
Returns the transitions matching the given IDs between two contract snapshots, alongside the IDs that did not resolve.
AddProxyToPool
Adds an existing proxy to a legacy proxy pool's membership. Both the pool and the proxy must already belong to your workspace; a proxy already a member of the pool reports ALREADY_EXISTS.