Polling fallback feed for watchlist events
Cursor-paginated list of webhook-shape events, oldest first (same envelope and event_id as the webhook, minus the per-delivery signature). Use as a fallback when an inbound webhook receiver is not feasible — corporate networks, agents without a public URL, backfill after webhook outages.
Which events — every operator event (license.*, regulatory_action.added) about an operator currently on the caller’s watchlist, whether or not the caller has a webhook endpoint; plus any event that was queued for one of the caller’s endpoints (e.g. coverage.* for an endpoint subscribed to it). An event whose underlying licence-history row we have since withdrawn as wrong is not served.
Where to start — since=<ISO datetime> for the first call (at most 30 days back), then cursor=<next_cursor> from the previous response. Not both (400). With neither, you get the events of the last hour. next_cursor is null when has_more is false: keep the last cursor you were given, or the timestamp of the last event you processed, for the next poll.
Rate limit — its own counter, per account per clock hour, on top of the monthly quota: Starter 10, Pro 60, Business 600, Enterprise unlimited. 429 with details.reason: watchlist_events_poll_limit when exhausted. A refused request (400, 429) spends a poll.
Every response carries X-Poll-RateLimit-Limit, -Remaining, -Reset, -Window and X-Poll-Recommended-Interval (seconds to sleep between polls to stay under the ceiling).
Authorizations
Section titled “ Authorizations ”Parameters
Section titled “ Parameters ”Query Parameters
Section titled “ Query Parameters ”An ISO-8601 datetime WITH a UTC offset (2026-10-01T00:00:00Z); a bare date is a 400. Returns events created after it. More than 30 days back is a 400 (since_exceeds_retention_window).
Example
2026-10-01T00:00:00Znext_cursor from the previous response, verbatim. Opaque; one we cannot decode is a 400 (invalid_cursor).
Events per page. Out of range is a 400, not clamped.
Responses
Section titled “ Responses ”Events page.
object
Oldest first.
Common shape across every webhook event (and every entry in /v1/watchlist/events). The data block varies by event — see https://igregulator.io/docs/webhooks/ for per-event field tables.
object
The event types an endpoint can subscribe to. domain.listed (1.25.0) is one event per operator per read, carrying every domain first recorded under it. domain.delisted (1.32.0) is its mirror: one event per operator and register when that register stops listing sites on the operator’s licence — a read of the register, never an absence elsewhere, and nothing about the licence itself. webhook.endpoint_degraded is accepted in events but never sent today — watch GET /v1/webhooks/{id}/deliveries?status=abandoned instead.
Example
evt_01HX8EGQK3J7WA6MYTP7ZGYF21Example
2026-04-20object
Example
{ "event": "license.status_changed", "event_id": "evt_01HX8EGQK3J7WA6MYTP7ZGYF21", "api_version": "2026-04-20", "timestamp": "2026-04-20T14:32:00.000Z", "livemode": true, "data": { "license_id": "4db0141c-a863-49b1-808d-75fa49e36fd9", "license_number": "039028-R-319297-014", "operator_id": "00000000-0000-0000-0000-000000000000", "operator_slug": "888-uk-limited", "jurisdiction_code": "UKGC", "previous_status": "active", "new_status": "suspended", "changed_at": "2026-04-20T03:04:12.000Z", "source_url": "https://www.gamblingcommission.gov.uk/..." }}Pass as cursor to get the next page. null when has_more is false.
Headers
Section titled “ Headers ”Polls per clock hour on the caller’s plan, or unlimited.
Polls left this hour, this one counted. Not sent when the limit is unlimited.
When the hourly counter starts again: the top of the next UTC hour, ISO-8601.
Always hour. Not sent when the limit is unlimited.
Seconds to sleep between polls to stay under the ceiling — ceil(3600 / limit): 360 on Starter, 60 on Pro, 6 on Business, 1 when unlimited.
Your plan’s monthly request quota (not the per-second limit). Not sent on a plan with no monthly quota (Business, Enterprise).
What is left of the monthly quota, this request counted. Not sent on a plan with no monthly quota.
Unix epoch seconds of the start of the next UTC month. Not sent on a plan with no monthly quota.
tier=unlimited on a plan with no monthly quota; otherwise not sent.
Always https://igregulator.io/pricing.
The monthly request quota of your plan, or unlimited.
Requests counted this UTC month, this one included (a request that ends in 4xx / 5xx is not counted). Not sent when the limit is unlimited.
What is left of the monthly quota. Not sent when unlimited.
When the monthly counter starts again: the first of next month, 00:00 UTC, ISO-8601. Not sent when unlimited.
80% of monthly limit used — sent from 80% of the quota on, absent before.
since, cursor or limit is invalid; both since and cursor were sent; the cursor cannot be decoded; or since is more than 30 days back.
The body of every non-2xx response.
object
Human-readable summary. The wording can change; do not branch on it.
The error class. Mostly one per HTTP status, with two exceptions to know: quota_exceeded is a 429 for the monthly request quota and a 403 for a plan cap (watchlist size, webhook endpoints). A 409 carries conflict (it carried invalid_query before 1.24.0). Branch on the HTTP status and details.reason. forbidden is only ever sent to a signed-in MCP connection, never to an API key.
Always present. reason is always set; field and suggestion when they apply; limit errors add the numbers below.
object
Machine-readable refinement of the top-level code — branch on this. Values: invalid_input, missing_required_parameter, conflicting_parameters, not_a_valid_hostname, hostname_too_long, invalid_pagination, invalid_cursor, since_exceeds_retention_window, invalid_event_type, invalid_jurisdiction, as_of_not_supported, api_key_missing, malformed_header, api_key_invalid, api_key_revoked, plan_inactive, plan_ended, export_requires_pro, geo_checks_require_business, watchlist_quota_exceeded, webhook_quota_exceeded, operator_not_found, license_not_found, jurisdiction_not_found, webhook_not_found, dataset_not_found, route_not_found, method_not_allowed, watchlist_duplicate, no_active_secret, quota_exceeded, monthly_request_limit_reached, per_second_limit_exceeded, watchlist_events_poll_limit, export_daily_limit_reached, geo_check_quota_exceeded, internal_error. A rejected webhook URL carries the SSRF check’s reason (invalid_url, invalid_scheme, empty_host, blocked_hostname, unresolvable_host, private_ip_blocked). New values can be added.
Present only when the error maps to a specific request input (query param, path param, body key). Omitted for errors that aren’t field-scoped (e.g. rate_limited, auth_revoked).
A hint a person or an agent can act on. Present on every error today.
On a limit error (429, and the 403 plan caps): the ceiling that was reached.
On a keyed limit error: how much of limit is used. Not on the keyless per-IP 429 or the watchlist-poll 429.
When the counter starts again — on the keyless per-IP 429, the monthly quota, the watchlist-poll limit and the export daily limit. Not on the per-second limit (retry after one second).
The key’s plan, on plan-scoped limit errors and on export_requires_pro.
On export_requires_pro: the lowest plan that includes the feature.
On watchlist_events_poll_limit: always hour.
Examples
{ "error": "invalid since / cursor / limit", "code": "invalid_query", "details": { "reason": "invalid_input", "suggestion": "since must be ISO-8601; cursor is opaque; limit 1–500. Pass either since OR cursor, not both." }}{ "error": "pass since OR cursor, not both", "code": "invalid_query", "details": { "reason": "conflicting_parameters", "suggestion": "Use since= for the first bootstrap query; switch to cursor= for continuous polling." }}{ "error": "cursor could not be decoded", "code": "invalid_query", "details": { "reason": "invalid_cursor", "suggestion": "Use the next_cursor value from the previous response verbatim." }}{ "error": "since parameter too old", "code": "invalid_query", "details": { "reason": "since_exceeds_retention_window", "suggestion": "Events older than 30 days are pruned. Use cursor-based pagination for continuous consumption." }}The API key is missing, malformed, unknown or revoked. On an endpoint that works without a key this is only ever sent when a key WAS sent and is not valid — drop the header, or fix the key.
The body of every non-2xx response.
object
Human-readable summary. The wording can change; do not branch on it.
The error class. Mostly one per HTTP status, with two exceptions to know: quota_exceeded is a 429 for the monthly request quota and a 403 for a plan cap (watchlist size, webhook endpoints). A 409 carries conflict (it carried invalid_query before 1.24.0). Branch on the HTTP status and details.reason. forbidden is only ever sent to a signed-in MCP connection, never to an API key.
Always present. reason is always set; field and suggestion when they apply; limit errors add the numbers below.
object
Machine-readable refinement of the top-level code — branch on this. Values: invalid_input, missing_required_parameter, conflicting_parameters, not_a_valid_hostname, hostname_too_long, invalid_pagination, invalid_cursor, since_exceeds_retention_window, invalid_event_type, invalid_jurisdiction, as_of_not_supported, api_key_missing, malformed_header, api_key_invalid, api_key_revoked, plan_inactive, plan_ended, export_requires_pro, geo_checks_require_business, watchlist_quota_exceeded, webhook_quota_exceeded, operator_not_found, license_not_found, jurisdiction_not_found, webhook_not_found, dataset_not_found, route_not_found, method_not_allowed, watchlist_duplicate, no_active_secret, quota_exceeded, monthly_request_limit_reached, per_second_limit_exceeded, watchlist_events_poll_limit, export_daily_limit_reached, geo_check_quota_exceeded, internal_error. A rejected webhook URL carries the SSRF check’s reason (invalid_url, invalid_scheme, empty_host, blocked_hostname, unresolvable_host, private_ip_blocked). New values can be added.
Present only when the error maps to a specific request input (query param, path param, body key). Omitted for errors that aren’t field-scoped (e.g. rate_limited, auth_revoked).
A hint a person or an agent can act on. Present on every error today.
On a limit error (429, and the 403 plan caps): the ceiling that was reached.
On a keyed limit error: how much of limit is used. Not on the keyless per-IP 429 or the watchlist-poll 429.
When the counter starts again — on the keyless per-IP 429, the monthly quota, the watchlist-poll limit and the export daily limit. Not on the per-second limit (retry after one second).
The key’s plan, on plan-scoped limit errors and on export_requires_pro.
On export_requires_pro: the lowest plan that includes the feature.
On watchlist_events_poll_limit: always hour.
Examples
{ "error": "Authorization header required", "code": "auth_required", "details": { "reason": "api_key_missing", "suggestion": "Attach an API key: `Authorization: Bearer <key>`. No key yet? Start a 14-day free trial of Starter (card required) at https://app.igregulator.io/signup; an existing account creates keys at https://app.igregulator.io/api-keys." }}{ "error": "Authorization header must be \"Bearer <key>\"", "code": "auth_invalid", "details": { "reason": "malformed_header", "suggestion": "Header format: `Authorization: Bearer <your-api-key>`." }}{ "error": "API key not recognized", "code": "auth_invalid", "details": { "reason": "api_key_invalid", "suggestion": "Double-check the key. Create a new one at https://app.igregulator.io/api-keys if the previous one was deleted." }}{ "error": "API key has been revoked", "code": "auth_revoked", "details": { "reason": "api_key_revoked", "suggestion": "Generate a new API key at https://app.igregulator.io/api-keys. Revoked keys cannot be restored." }}The key’s plan does not cover this request: the account has no plan or a canceled one (plan_inactive), or its plan’s end date has passed (plan_ended — keys, watchlist and webhook endpoints are kept, and no webhook is sent until the plan is renewed). A trial account is served as Starter. Paid plans are not on sale yet: email founder@igregulator.io and we will sort it out.
The body of every non-2xx response.
object
Human-readable summary. The wording can change; do not branch on it.
The error class. Mostly one per HTTP status, with two exceptions to know: quota_exceeded is a 429 for the monthly request quota and a 403 for a plan cap (watchlist size, webhook endpoints). A 409 carries conflict (it carried invalid_query before 1.24.0). Branch on the HTTP status and details.reason. forbidden is only ever sent to a signed-in MCP connection, never to an API key.
Always present. reason is always set; field and suggestion when they apply; limit errors add the numbers below.
object
Machine-readable refinement of the top-level code — branch on this. Values: invalid_input, missing_required_parameter, conflicting_parameters, not_a_valid_hostname, hostname_too_long, invalid_pagination, invalid_cursor, since_exceeds_retention_window, invalid_event_type, invalid_jurisdiction, as_of_not_supported, api_key_missing, malformed_header, api_key_invalid, api_key_revoked, plan_inactive, plan_ended, export_requires_pro, geo_checks_require_business, watchlist_quota_exceeded, webhook_quota_exceeded, operator_not_found, license_not_found, jurisdiction_not_found, webhook_not_found, dataset_not_found, route_not_found, method_not_allowed, watchlist_duplicate, no_active_secret, quota_exceeded, monthly_request_limit_reached, per_second_limit_exceeded, watchlist_events_poll_limit, export_daily_limit_reached, geo_check_quota_exceeded, internal_error. A rejected webhook URL carries the SSRF check’s reason (invalid_url, invalid_scheme, empty_host, blocked_hostname, unresolvable_host, private_ip_blocked). New values can be added.
Present only when the error maps to a specific request input (query param, path param, body key). Omitted for errors that aren’t field-scoped (e.g. rate_limited, auth_revoked).
A hint a person or an agent can act on. Present on every error today.
On a limit error (429, and the 403 plan caps): the ceiling that was reached.
On a keyed limit error: how much of limit is used. Not on the keyless per-IP 429 or the watchlist-poll 429.
When the counter starts again — on the keyless per-IP 429, the monthly quota, the watchlist-poll limit and the export daily limit. Not on the per-second limit (retry after one second).
The key’s plan, on plan-scoped limit errors and on export_requires_pro.
On export_requires_pro: the lowest plan that includes the feature.
On watchlist_events_poll_limit: always hour.
Examples
{ "error": "Active subscription required", "code": "payment_required", "details": { "reason": "plan_inactive", "suggestion": "Current plan_tier: none — this account has no active plan. Renew or choose a plan at https://app.igregulator.io/billing (by card, or by invoice for three months or more; Starter starts with a 14-day free trial, card required), or email founder@igregulator.io." }}{ "error": "Plan ended", "code": "payment_required", "details": { "reason": "plan_ended", "suggestion": "This account's business plan ended on 2027-01-22 (UTC). Keys and settings are kept; email founder@igregulator.io to renew." }}The hourly poll ceiling of this endpoint (watchlist_events_poll_limit) — or one of the key’s own limits (key_* examples), as on every keyed endpoint.
The body of every non-2xx response.
object
Human-readable summary. The wording can change; do not branch on it.
The error class. Mostly one per HTTP status, with two exceptions to know: quota_exceeded is a 429 for the monthly request quota and a 403 for a plan cap (watchlist size, webhook endpoints). A 409 carries conflict (it carried invalid_query before 1.24.0). Branch on the HTTP status and details.reason. forbidden is only ever sent to a signed-in MCP connection, never to an API key.
Always present. reason is always set; field and suggestion when they apply; limit errors add the numbers below.
object
Machine-readable refinement of the top-level code — branch on this. Values: invalid_input, missing_required_parameter, conflicting_parameters, not_a_valid_hostname, hostname_too_long, invalid_pagination, invalid_cursor, since_exceeds_retention_window, invalid_event_type, invalid_jurisdiction, as_of_not_supported, api_key_missing, malformed_header, api_key_invalid, api_key_revoked, plan_inactive, plan_ended, export_requires_pro, geo_checks_require_business, watchlist_quota_exceeded, webhook_quota_exceeded, operator_not_found, license_not_found, jurisdiction_not_found, webhook_not_found, dataset_not_found, route_not_found, method_not_allowed, watchlist_duplicate, no_active_secret, quota_exceeded, monthly_request_limit_reached, per_second_limit_exceeded, watchlist_events_poll_limit, export_daily_limit_reached, geo_check_quota_exceeded, internal_error. A rejected webhook URL carries the SSRF check’s reason (invalid_url, invalid_scheme, empty_host, blocked_hostname, unresolvable_host, private_ip_blocked). New values can be added.
Present only when the error maps to a specific request input (query param, path param, body key). Omitted for errors that aren’t field-scoped (e.g. rate_limited, auth_revoked).
A hint a person or an agent can act on. Present on every error today.
On a limit error (429, and the 403 plan caps): the ceiling that was reached.
On a keyed limit error: how much of limit is used. Not on the keyless per-IP 429 or the watchlist-poll 429.
When the counter starts again — on the keyless per-IP 429, the monthly quota, the watchlist-poll limit and the export daily limit. Not on the per-second limit (retry after one second).
The key’s plan, on plan-scoped limit errors and on export_requires_pro.
On export_requires_pro: the lowest plan that includes the feature.
On watchlist_events_poll_limit: always hour.
Examples
{ "error": "Watchlist events poll rate limit exceeded", "code": "rate_limited", "details": { "reason": "watchlist_events_poll_limit", "limit": 10, "window": "hour", "reset_at": "2026-10-08T02:00:00.000Z", "suggestion": "Plan \"starter\" allows 10 watchlist polls per hour. Wait until reset_at, or switch to webhooks for push-based delivery — webhooks don't count against this limit." }}{ "error": "Monthly quota exceeded", "code": "quota_exceeded", "details": { "reason": "monthly_request_limit_reached", "current_usage": 10000, "limit": 10000, "reset_at": "2026-11-01T00:00:00.000Z", "plan_tier": "starter", "suggestion": "Wait until the monthly reset (reset_at). Higher limits: Pro and Business, by card or by invoice (three months or more) — https://app.igregulator.io/billing, or email founder@igregulator.io." }}{ "error": "Per-second rate limit reached", "code": "rate_limited", "details": { "reason": "per_second_limit_exceeded", "current_usage": 6, "limit": 5, "plan_tier": "starter", "suggestion": "Your plan allows 5 req/s. Back off for a second and retry. Higher limits: Pro and Business, by card or by invoice (three months or more) — https://app.igregulator.io/billing, or email founder@igregulator.io." }}Headers
Section titled “ Headers ”Polls per clock hour on the caller’s plan, or unlimited.
Polls left this hour, this one counted. Not sent when the limit is unlimited.
When the hourly counter starts again: the top of the next UTC hour, ISO-8601.
Always hour. Not sent when the limit is unlimited.
Seconds to sleep between polls to stay under the ceiling — ceil(3600 / limit): 360 on Starter, 60 on Pro, 6 on Business, 1 when unlimited.
Unexpected server error. Safe to retry.
The body of every non-2xx response.
object
Human-readable summary. The wording can change; do not branch on it.
The error class. Mostly one per HTTP status, with two exceptions to know: quota_exceeded is a 429 for the monthly request quota and a 403 for a plan cap (watchlist size, webhook endpoints). A 409 carries conflict (it carried invalid_query before 1.24.0). Branch on the HTTP status and details.reason. forbidden is only ever sent to a signed-in MCP connection, never to an API key.
Always present. reason is always set; field and suggestion when they apply; limit errors add the numbers below.
object
Machine-readable refinement of the top-level code — branch on this. Values: invalid_input, missing_required_parameter, conflicting_parameters, not_a_valid_hostname, hostname_too_long, invalid_pagination, invalid_cursor, since_exceeds_retention_window, invalid_event_type, invalid_jurisdiction, as_of_not_supported, api_key_missing, malformed_header, api_key_invalid, api_key_revoked, plan_inactive, plan_ended, export_requires_pro, geo_checks_require_business, watchlist_quota_exceeded, webhook_quota_exceeded, operator_not_found, license_not_found, jurisdiction_not_found, webhook_not_found, dataset_not_found, route_not_found, method_not_allowed, watchlist_duplicate, no_active_secret, quota_exceeded, monthly_request_limit_reached, per_second_limit_exceeded, watchlist_events_poll_limit, export_daily_limit_reached, geo_check_quota_exceeded, internal_error. A rejected webhook URL carries the SSRF check’s reason (invalid_url, invalid_scheme, empty_host, blocked_hostname, unresolvable_host, private_ip_blocked). New values can be added.
Present only when the error maps to a specific request input (query param, path param, body key). Omitted for errors that aren’t field-scoped (e.g. rate_limited, auth_revoked).
A hint a person or an agent can act on. Present on every error today.
On a limit error (429, and the 403 plan caps): the ceiling that was reached.
On a keyed limit error: how much of limit is used. Not on the keyless per-IP 429 or the watchlist-poll 429.
When the counter starts again — on the keyless per-IP 429, the monthly quota, the watchlist-poll limit and the export daily limit. Not on the per-second limit (retry after one second).
The key’s plan, on plan-scoped limit errors and on export_requires_pro.
On export_requires_pro: the lowest plan that includes the feature.
On watchlist_events_poll_limit: always hour.
Example
{ "error": "Internal server error", "code": "server_error", "details": { "reason": "internal_error", "suggestion": "Retry with exponential backoff (1s / 2s / 4s). If the error persists past 4 seconds, surface failure state to the user instead of looping." }}