Get call-history (proxied or presigned link)
const url = 'https://example.com/v1/communication/example/history';const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
try { const response = await fetch(url, options); const data = await response.json(); console.log(data);} catch (error) { console.error(error);}curl --request GET \ --url https://example.com/v1/communication/example/history \ --header 'Authorization: Bearer <token>'Serves the call’s saved execution-history JSON. mode=proxy (default) streams the raw history JSON through athena; mode=url returns a time-bounded presigned download link (SignedLink) instead. 404 when the communication has no stored history.
Authorizations
Section titled “Authorizations”Parameters
Section titled “Parameters”Path Parameters
Section titled “Path Parameters”Query Parameters
Section titled “Query Parameters”Proxy (default) streams the history JSON through athena; url returns a presigned download link instead.
Url mode only — presigned link lifetime in seconds; default 3600 (1h), max 604800 (7d).
Header Parameters
Section titled “Header Parameters”Target account for account-scoped resources. Principals without an account scope (superuser, tenant API key) MUST send it to declare which account to operate in. Account-scoped principals may omit it; if sent it must match their own account or the request is rejected with scope_conflict. For tenant API keys the account must belong to the key’s tenant.
Responses
Section titled “Responses”Url mode: a presigned link; proxy mode: the raw call-history JSON.
Time-bounded presigned download link for a stored object (call history, recording, or audio file).
object
Examplegenerated
{ "signed_url": "example", "expires_at": "2026-04-15T12:00:00Z"}Invalid request body or parameters
object
Stable lower_snake_case usecase code (e.g. scenario_not_found)
Registered machine code — generic ERRxxx by status class (ERR001–ERR020 reserved); entity-prefixed codes (SCN1xx) appear only inside validation details; registry in docs/specifications/error-envelope-design.md, append-only, never renumbered
Structured details, present only where there is structure to carry: validation failures (topic validation, per-entity errors) and delete conflicts (topic conflict, referencing agents)
object
Validation errors keyed by entity
object
object
SCN1xx constructor validation code
Ids of the agents referencing the resource a delete was rejected for; first 20 — message carries the total count
Examplegenerated
{ "error": "example", "code": "example", "message": "example", "data": { "topic": "example", "errors": { "scenario": [ { "code": "example", "message": "example", "summary": "example", "tree_id": "example", "node_id": "example", "output_type": "example", "duplicate_tree_index": "example", "duplicate_node_index": "example", "property": "example", "invalid_value": "example" } ] }, "agents": [ "example" ] }}Missing or invalid credentials
object
Stable lower_snake_case usecase code (e.g. scenario_not_found)
Registered machine code — generic ERRxxx by status class (ERR001–ERR020 reserved); entity-prefixed codes (SCN1xx) appear only inside validation details; registry in docs/specifications/error-envelope-design.md, append-only, never renumbered
Structured details, present only where there is structure to carry: validation failures (topic validation, per-entity errors) and delete conflicts (topic conflict, referencing agents)
object
Validation errors keyed by entity
object
object
SCN1xx constructor validation code
Ids of the agents referencing the resource a delete was rejected for; first 20 — message carries the total count
Examplegenerated
{ "error": "example", "code": "example", "message": "example", "data": { "topic": "example", "errors": { "scenario": [ { "code": "example", "message": "example", "summary": "example", "tree_id": "example", "node_id": "example", "output_type": "example", "duplicate_tree_index": "example", "duplicate_node_index": "example", "property": "example", "invalid_value": "example" } ] }, "agents": [ "example" ] }}Resource does not exist
object
Stable lower_snake_case usecase code (e.g. scenario_not_found)
Registered machine code — generic ERRxxx by status class (ERR001–ERR020 reserved); entity-prefixed codes (SCN1xx) appear only inside validation details; registry in docs/specifications/error-envelope-design.md, append-only, never renumbered
Structured details, present only where there is structure to carry: validation failures (topic validation, per-entity errors) and delete conflicts (topic conflict, referencing agents)
object
Validation errors keyed by entity
object
object
SCN1xx constructor validation code
Ids of the agents referencing the resource a delete was rejected for; first 20 — message carries the total count
Examplegenerated
{ "error": "example", "code": "example", "message": "example", "data": { "topic": "example", "errors": { "scenario": [ { "code": "example", "message": "example", "summary": "example", "tree_id": "example", "node_id": "example", "output_type": "example", "duplicate_tree_index": "example", "duplicate_node_index": "example", "property": "example", "invalid_value": "example" } ] }, "agents": [ "example" ] }}Internal server error
object
Stable lower_snake_case usecase code (e.g. scenario_not_found)
Registered machine code — generic ERRxxx by status class (ERR001–ERR020 reserved); entity-prefixed codes (SCN1xx) appear only inside validation details; registry in docs/specifications/error-envelope-design.md, append-only, never renumbered
Structured details, present only where there is structure to carry: validation failures (topic validation, per-entity errors) and delete conflicts (topic conflict, referencing agents)
object
Validation errors keyed by entity
object
object
SCN1xx constructor validation code
Ids of the agents referencing the resource a delete was rejected for; first 20 — message carries the total count
Examplegenerated
{ "error": "example", "code": "example", "message": "example", "data": { "topic": "example", "errors": { "scenario": [ { "code": "example", "message": "example", "summary": "example", "tree_id": "example", "node_id": "example", "output_type": "example", "duplicate_tree_index": "example", "duplicate_node_index": "example", "property": "example", "invalid_value": "example" } ] }, "agents": [ "example" ] }}