Stream run events (SSE)

GET

/v1/runs/{id}/events

curl --request GET \
  --url 'https://api.hyperresearch.ai/v1/runs/example/events?last_event_id=42' \
  --header 'Authorization: Bearer <token>'

• production

Server-sent events mirroring events.jsonl. Last-Event-ID (or ?last_event_id=) resumes from the run log, exclusive of that id — reconnecting replays nothing already delivered and skips nothing. Heartbeat comment every 15 s. The sentinel for “from the start of the log” is -1, an empty value, or omitting the parameter entirely; all three behave identically and none is an error. Always 200, never 503: a run whose RunAgent has not registered yet is waited for (about 5 s) and then answered with an empty stream carrying retry: 2000, and a control-plane read that fails transiently is answered the same way (with Retry-After: 2) rather than with a 5xx. Only a run that does not exist in this workspace is an error, and that is a 404. One connection lives at most 25 minutes; the server then ends it cleanly with a retry: hint and the client reconnects with Last-Event-ID. An event: counters carries the run’s running totals — sources_fetched (sources KEPT), notes_written, candidates_seen (candidates considered), fetch_attempts, agents_spawned — so a client never has to derive them by counting events; the same fields ride on EVERY fetch event, including the ones that failed. Counting fetch rows is not a source count (E2E4-02). An event: note is emitted once for every source the run KEEPS, carrying note_id, the resolved title, the domain and the url — everything a Sources panel prints, at the moment the source lands. Counting note events counts sources; counting fetch events counts attempts. A kept fetch event carries the same title and domain, so a client that only listens for fetches can show the real title rather than a URL slug (E2E6-05/E2E6-06). Event types and their status values are forwarded from the run log as-is and may gain additive values; ignore any you do not recognise. An event: step with status: "title" carries a short human description of what that step is doing (title) and is advisory — it does not mark a step transition. The width sweep publishes three aggregate step events on step 2, with the numbers to describe it: status: "search-lanes" carries planned, executed, failed, candidates and cap; status: "wave-1" carries attempted, fetched, failed and reused; status: "vault-reuse" carries notes_reused and reuse_scope (project when the run reads its project’s slice of the vault, workspace otherwise). Per-lane detail rides event: fetch with kind: "search_lane" (query, web_results, discovery_used, merged, unconfigured). Lane failure text (web_error, lane_errors, errors) is sanitised on the way out on the same terms as an error event’s message: single-line, 300 characters, at most five entries. Only frames that are positions in the run log carry id:. A stream-level event: error has no id:, so a client’s Last-Event-ID stays on the last real event. An event: error carries message: the sanitised failure reason, single-line and capped at 300 characters, plus terminal: true on the run’s final failure or abort.

Authorizations

• bearerAuth
  runs:read
• sessionCookie
  runs:read

Parameters

Path Parameters

id

required

string

>= 3 characters <= 64 characters

Query Parameters

last_event_id

Resume the stream after this event id, exclusive. -1, an empty value and an absent parameter are all the sentinel for “from the start of the run log”. Last-Event-ID takes precedence when both are sent.

string

Example

42

Resume the stream after this event id, exclusive. -1, an empty value and an absent parameter are all the sentinel for “from the start of the run log”. Last-Event-ID takes precedence when both are sent.

Responses

200

Event stream

Media typetext/event-stream

string

Headers

RateLimit-Policy

string

Example

"reads";q=60;w=60

The quota policy this request was counted against (draft-ietf-httpapi-ratelimit-headers): "<bucket>";q=<requests>;w=<window seconds>, e.g. "reads";q=60;w=60. Buckets: reads 60/min, status 600/min, creates 10/min, writes 20/min per credential; public 300/min per network on keyless routes.

RateLimit

string

Example

"reads";r=57;t=41

Remaining quota in the current window: "<bucket>";r=<remaining>;t=<seconds until reset>, e.g. "reads";r=57;t=41.

X-RateLimit-Limit

integer

Requests allowed per window in this bucket (legacy form of RateLimit-Policy).

X-RateLimit-Remaining

integer

Requests left in this window (legacy form of RateLimit).

X-RateLimit-Reset

integer

Unix time (seconds) when the window resets.

X-RateLimit-Bucket

string

Which bucket counted the request: reads, status, creates, writes or public.

400

Invalid request

Media typeapplication/json

object

error

required

object

type

required

string

Allowed values: invalid_request authentication permission not_found rate_limited quota_exceeded budget_blocked conflict provider_unavailable internal

code

required

string

Allowed values: missing_api_key malformed_api_key invalid_api_key api_key_expired api_key_revoked account_suspended workspace_unavailable session_expired insufficient_scope signup_closed role_not_permitted membership_required csrf_required csrf_invalid origin_not_allowed https_required key_route_restricted tier_not_allowed runs_paused invalid_body invalid_query invalid_path query_too_short query_not_research query_too_long query_refused invalid_title invalid_brief invalid_must_read invalid_research_brief invalid_time_window invalid_pulse invalid_metadata invalid_tier too_many_required_headings sources_max_above_ceiling reuse_scope_needs_project invalid_webhook_url metadata_too_large invalid_settings invalid_step unsupported_tier tier_not_offered plan_not_offered provider_excluded dry_run_not_enabled invalid_dry_run_fault chaos_faults_not_enabled invalid_chaos_fault gone run_not_found key_not_found workspace_not_found webhook_not_found artifact_not_found note_not_found escalation_not_found source_not_found connection_not_found project_not_found answer_not_found account_not_found feature_not_enabled idempotency_key_reuse idempotency_in_flight run_not_resumable run_not_finish_resumable run_finish_resume_exhausted run_recovering rerun_not_platform platform_rerun_taken run_not_clarifying result_not_ready workspace_not_empty turnstile_invalid turnstile_replayed demo_daily_limit demo_receipt_invalid demo_disabled user_not_found member_not_found member_exists last_owner cannot_self_elevate workspace_limit invitation_not_found invitation_expired invitation_email_mismatch account_mismatch ip_not_allowed chat_keys_retired project_name_taken project_archived run_not_filable confirmation_mismatch ownership_transfer_required account_deleting export_cooldown migration_pending rate_limit_exceeded concurrency_limit spend_cap_exceeded trial_exhausted payment_method_required payment_disputed card_hold_unavailable card_required insufficient_balance wallet_frozen topup_amount_invalid topup_daily_limit answers_capacity platform_capacity daily_run_limit internal_budget orchestrator_unavailable source_unconfigured source_rate_limited source_upstream_unavailable deployment_misconfigured not_implemented pdf_unavailable internal_error

message

required

string

param

string

retry_after

integer

request_id

required

string

Example

{
  "error": {
    "type": "invalid_request",
    "code": "missing_api_key",
    "request_id": "req_01J9ZQ7V6H0000000000000000"
  }
}

401

Authentication failed

Media typeapplication/json

object

error

required

object

type

required

string

Allowed values: invalid_request authentication permission not_found rate_limited quota_exceeded budget_blocked conflict provider_unavailable internal

code

required

string

Allowed values: missing_api_key malformed_api_key invalid_api_key api_key_expired api_key_revoked account_suspended workspace_unavailable session_expired insufficient_scope signup_closed role_not_permitted membership_required csrf_required csrf_invalid origin_not_allowed https_required key_route_restricted tier_not_allowed runs_paused invalid_body invalid_query invalid_path query_too_short query_not_research query_too_long query_refused invalid_title invalid_brief invalid_must_read invalid_research_brief invalid_time_window invalid_pulse invalid_metadata invalid_tier too_many_required_headings sources_max_above_ceiling reuse_scope_needs_project invalid_webhook_url metadata_too_large invalid_settings invalid_step unsupported_tier tier_not_offered plan_not_offered provider_excluded dry_run_not_enabled invalid_dry_run_fault chaos_faults_not_enabled invalid_chaos_fault gone run_not_found key_not_found workspace_not_found webhook_not_found artifact_not_found note_not_found escalation_not_found source_not_found connection_not_found project_not_found answer_not_found account_not_found feature_not_enabled idempotency_key_reuse idempotency_in_flight run_not_resumable run_not_finish_resumable run_finish_resume_exhausted run_recovering rerun_not_platform platform_rerun_taken run_not_clarifying result_not_ready workspace_not_empty turnstile_invalid turnstile_replayed demo_daily_limit demo_receipt_invalid demo_disabled user_not_found member_not_found member_exists last_owner cannot_self_elevate workspace_limit invitation_not_found invitation_expired invitation_email_mismatch account_mismatch ip_not_allowed chat_keys_retired project_name_taken project_archived run_not_filable confirmation_mismatch ownership_transfer_required account_deleting export_cooldown migration_pending rate_limit_exceeded concurrency_limit spend_cap_exceeded trial_exhausted payment_method_required payment_disputed card_hold_unavailable card_required insufficient_balance wallet_frozen topup_amount_invalid topup_daily_limit answers_capacity platform_capacity daily_run_limit internal_budget orchestrator_unavailable source_unconfigured source_rate_limited source_upstream_unavailable deployment_misconfigured not_implemented pdf_unavailable internal_error

message

required

string

param

string

retry_after

integer

request_id

required

string

Example

{
  "error": {
    "type": "invalid_request",
    "code": "missing_api_key",
    "request_id": "req_01J9ZQ7V6H0000000000000000"
  }
}

403

Insufficient scope or plan

Media typeapplication/json

object

error

required

object

type

required

string

Allowed values: invalid_request authentication permission not_found rate_limited quota_exceeded budget_blocked conflict provider_unavailable internal

code

required

string

Allowed values: missing_api_key malformed_api_key invalid_api_key api_key_expired api_key_revoked account_suspended workspace_unavailable session_expired insufficient_scope signup_closed role_not_permitted membership_required csrf_required csrf_invalid origin_not_allowed https_required key_route_restricted tier_not_allowed runs_paused invalid_body invalid_query invalid_path query_too_short query_not_research query_too_long query_refused invalid_title invalid_brief invalid_must_read invalid_research_brief invalid_time_window invalid_pulse invalid_metadata invalid_tier too_many_required_headings sources_max_above_ceiling reuse_scope_needs_project invalid_webhook_url metadata_too_large invalid_settings invalid_step unsupported_tier tier_not_offered plan_not_offered provider_excluded dry_run_not_enabled invalid_dry_run_fault chaos_faults_not_enabled invalid_chaos_fault gone run_not_found key_not_found workspace_not_found webhook_not_found artifact_not_found note_not_found escalation_not_found source_not_found connection_not_found project_not_found answer_not_found account_not_found feature_not_enabled idempotency_key_reuse idempotency_in_flight run_not_resumable run_not_finish_resumable run_finish_resume_exhausted run_recovering rerun_not_platform platform_rerun_taken run_not_clarifying result_not_ready workspace_not_empty turnstile_invalid turnstile_replayed demo_daily_limit demo_receipt_invalid demo_disabled user_not_found member_not_found member_exists last_owner cannot_self_elevate workspace_limit invitation_not_found invitation_expired invitation_email_mismatch account_mismatch ip_not_allowed chat_keys_retired project_name_taken project_archived run_not_filable confirmation_mismatch ownership_transfer_required account_deleting export_cooldown migration_pending rate_limit_exceeded concurrency_limit spend_cap_exceeded trial_exhausted payment_method_required payment_disputed card_hold_unavailable card_required insufficient_balance wallet_frozen topup_amount_invalid topup_daily_limit answers_capacity platform_capacity daily_run_limit internal_budget orchestrator_unavailable source_unconfigured source_rate_limited source_upstream_unavailable deployment_misconfigured not_implemented pdf_unavailable internal_error

message

required

string

param

string

retry_after

integer

request_id

required

string

Example

{
  "error": {
    "type": "invalid_request",
    "code": "missing_api_key",
    "request_id": "req_01J9ZQ7V6H0000000000000000"
  }
}

404

Not found

Media typeapplication/json

object

error

required

object

type

required

string

Allowed values: invalid_request authentication permission not_found rate_limited quota_exceeded budget_blocked conflict provider_unavailable internal

code

required

string

Allowed values: missing_api_key malformed_api_key invalid_api_key api_key_expired api_key_revoked account_suspended workspace_unavailable session_expired insufficient_scope signup_closed role_not_permitted membership_required csrf_required csrf_invalid origin_not_allowed https_required key_route_restricted tier_not_allowed runs_paused invalid_body invalid_query invalid_path query_too_short query_not_research query_too_long query_refused invalid_title invalid_brief invalid_must_read invalid_research_brief invalid_time_window invalid_pulse invalid_metadata invalid_tier too_many_required_headings sources_max_above_ceiling reuse_scope_needs_project invalid_webhook_url metadata_too_large invalid_settings invalid_step unsupported_tier tier_not_offered plan_not_offered provider_excluded dry_run_not_enabled invalid_dry_run_fault chaos_faults_not_enabled invalid_chaos_fault gone run_not_found key_not_found workspace_not_found webhook_not_found artifact_not_found note_not_found escalation_not_found source_not_found connection_not_found project_not_found answer_not_found account_not_found feature_not_enabled idempotency_key_reuse idempotency_in_flight run_not_resumable run_not_finish_resumable run_finish_resume_exhausted run_recovering rerun_not_platform platform_rerun_taken run_not_clarifying result_not_ready workspace_not_empty turnstile_invalid turnstile_replayed demo_daily_limit demo_receipt_invalid demo_disabled user_not_found member_not_found member_exists last_owner cannot_self_elevate workspace_limit invitation_not_found invitation_expired invitation_email_mismatch account_mismatch ip_not_allowed chat_keys_retired project_name_taken project_archived run_not_filable confirmation_mismatch ownership_transfer_required account_deleting export_cooldown migration_pending rate_limit_exceeded concurrency_limit spend_cap_exceeded trial_exhausted payment_method_required payment_disputed card_hold_unavailable card_required insufficient_balance wallet_frozen topup_amount_invalid topup_daily_limit answers_capacity platform_capacity daily_run_limit internal_budget orchestrator_unavailable source_unconfigured source_rate_limited source_upstream_unavailable deployment_misconfigured not_implemented pdf_unavailable internal_error

message

required

string

param

string

retry_after

integer

request_id

required

string

Example

{
  "error": {
    "type": "invalid_request",
    "code": "missing_api_key",
    "request_id": "req_01J9ZQ7V6H0000000000000000"
  }
}

429

Rate limited or over quota

Media typeapplication/json

object

error

required

object

type

required

string

Allowed values: invalid_request authentication permission not_found rate_limited quota_exceeded budget_blocked conflict provider_unavailable internal

code

required

string

Allowed values: missing_api_key malformed_api_key invalid_api_key api_key_expired api_key_revoked account_suspended workspace_unavailable session_expired insufficient_scope signup_closed role_not_permitted membership_required csrf_required csrf_invalid origin_not_allowed https_required key_route_restricted tier_not_allowed runs_paused invalid_body invalid_query invalid_path query_too_short query_not_research query_too_long query_refused invalid_title invalid_brief invalid_must_read invalid_research_brief invalid_time_window invalid_pulse invalid_metadata invalid_tier too_many_required_headings sources_max_above_ceiling reuse_scope_needs_project invalid_webhook_url metadata_too_large invalid_settings invalid_step unsupported_tier tier_not_offered plan_not_offered provider_excluded dry_run_not_enabled invalid_dry_run_fault chaos_faults_not_enabled invalid_chaos_fault gone run_not_found key_not_found workspace_not_found webhook_not_found artifact_not_found note_not_found escalation_not_found source_not_found connection_not_found project_not_found answer_not_found account_not_found feature_not_enabled idempotency_key_reuse idempotency_in_flight run_not_resumable run_not_finish_resumable run_finish_resume_exhausted run_recovering rerun_not_platform platform_rerun_taken run_not_clarifying result_not_ready workspace_not_empty turnstile_invalid turnstile_replayed demo_daily_limit demo_receipt_invalid demo_disabled user_not_found member_not_found member_exists last_owner cannot_self_elevate workspace_limit invitation_not_found invitation_expired invitation_email_mismatch account_mismatch ip_not_allowed chat_keys_retired project_name_taken project_archived run_not_filable confirmation_mismatch ownership_transfer_required account_deleting export_cooldown migration_pending rate_limit_exceeded concurrency_limit spend_cap_exceeded trial_exhausted payment_method_required payment_disputed card_hold_unavailable card_required insufficient_balance wallet_frozen topup_amount_invalid topup_daily_limit answers_capacity platform_capacity daily_run_limit internal_budget orchestrator_unavailable source_unconfigured source_rate_limited source_upstream_unavailable deployment_misconfigured not_implemented pdf_unavailable internal_error

message

required

string

param

string

retry_after

integer

request_id

required

string

Example

{
  "error": {
    "type": "invalid_request",
    "code": "missing_api_key",
    "request_id": "req_01J9ZQ7V6H0000000000000000"
  }
}

Headers

Retry-After

integer

Seconds to wait before retrying. Always present on a 429.

RateLimit-Policy

string

Example

"reads";q=60;w=60

The quota policy this request was counted against (draft-ietf-httpapi-ratelimit-headers): "<bucket>";q=<requests>;w=<window seconds>, e.g. "reads";q=60;w=60. Buckets: reads 60/min, status 600/min, creates 10/min, writes 20/min per credential; public 300/min per network on keyless routes.

RateLimit

string

Example

"reads";r=57;t=41

Remaining quota in the current window: "<bucket>";r=<remaining>;t=<seconds until reset>, e.g. "reads";r=57;t=41.

X-RateLimit-Limit

integer

Requests allowed per window in this bucket (legacy form of RateLimit-Policy).

X-RateLimit-Remaining

integer

Requests left in this window (legacy form of RateLimit).

X-RateLimit-Reset

integer

Unix time (seconds) when the window resets.

X-RateLimit-Bucket

string

Which bucket counted the request: reads, status, creates, writes or public.

500

Internal error

Media typeapplication/json

object

error

required

object

type

required

string

Allowed values: invalid_request authentication permission not_found rate_limited quota_exceeded budget_blocked conflict provider_unavailable internal

code

required

string

Allowed values: missing_api_key malformed_api_key invalid_api_key api_key_expired api_key_revoked account_suspended workspace_unavailable session_expired insufficient_scope signup_closed role_not_permitted membership_required csrf_required csrf_invalid origin_not_allowed https_required key_route_restricted tier_not_allowed runs_paused invalid_body invalid_query invalid_path query_too_short query_not_research query_too_long query_refused invalid_title invalid_brief invalid_must_read invalid_research_brief invalid_time_window invalid_pulse invalid_metadata invalid_tier too_many_required_headings sources_max_above_ceiling reuse_scope_needs_project invalid_webhook_url metadata_too_large invalid_settings invalid_step unsupported_tier tier_not_offered plan_not_offered provider_excluded dry_run_not_enabled invalid_dry_run_fault chaos_faults_not_enabled invalid_chaos_fault gone run_not_found key_not_found workspace_not_found webhook_not_found artifact_not_found note_not_found escalation_not_found source_not_found connection_not_found project_not_found answer_not_found account_not_found feature_not_enabled idempotency_key_reuse idempotency_in_flight run_not_resumable run_not_finish_resumable run_finish_resume_exhausted run_recovering rerun_not_platform platform_rerun_taken run_not_clarifying result_not_ready workspace_not_empty turnstile_invalid turnstile_replayed demo_daily_limit demo_receipt_invalid demo_disabled user_not_found member_not_found member_exists last_owner cannot_self_elevate workspace_limit invitation_not_found invitation_expired invitation_email_mismatch account_mismatch ip_not_allowed chat_keys_retired project_name_taken project_archived run_not_filable confirmation_mismatch ownership_transfer_required account_deleting export_cooldown migration_pending rate_limit_exceeded concurrency_limit spend_cap_exceeded trial_exhausted payment_method_required payment_disputed card_hold_unavailable card_required insufficient_balance wallet_frozen topup_amount_invalid topup_daily_limit answers_capacity platform_capacity daily_run_limit internal_budget orchestrator_unavailable source_unconfigured source_rate_limited source_upstream_unavailable deployment_misconfigured not_implemented pdf_unavailable internal_error

message

required

string

param

string

retry_after

integer

request_id

required

string

Example

{
  "error": {
    "type": "invalid_request",
    "code": "missing_api_key",
    "request_id": "req_01J9ZQ7V6H0000000000000000"
  }
}