reference
Pipeline
The AI generation engine. The only billable surface in this API.
/pipeline/runsList pipeline runs#
- Scope
- pipeline:read
- Rate limit
- 600/min (read)
- Publishable key
- refused
- Dashboard permission
- pipeline.run
Recent engine activity for the Site, newest first. One row per stage invocation, so a single logical run appears as several rows as work moves through the stages.
Parameters
| Name | In | Type | Notes |
|---|---|---|---|
| cursor | query | string | The opaque cursor from |
| limit | query | integer | Page size. Values above the maximum are clamped rather than rejected, so a client asking for a thousand rows gets a hundred and a default 20 |
| status | query | PipelineRunStatus | one of running, success, failed, partial |
| stage | query | PipelineStage | one of dispatch, discover, scrape, extract, plan, generate, improve, classify, images, publish |
Responses
- 200a page of PipelineRun
A page of pipeline runs.
- 400
INVALID_REQUEST. The request could not be parsed, or a parameter is not usable: bad JSON, an unknown query parameter value, or a missing required header. - 401
INVALID_API_KEY,API_KEY_REVOKEDorAPI_KEY_EXPIRED. There is no key, or it is not usable. This response never distinguishes "no such key" from "wrong key", so a caller cannot probe for valid keys. - 403
INSUFFICIENT_SCOPE. The key is valid but does not carry the scope this operation requires, or its creator's permissions no longer cover it.This is the only 403 in the API. In particular it is never returned for an object belonging to another Site: that case is always 404, so this response never reveals that something exists.
- 429
RATE_LIMIT_EXCEEDED. Back off and honourRetry-After.Limits are per key, per minute, by endpoint class. Writes are limited harder than reads because they cost more to serve, and pipeline runs hardest of all because they cost real money.
Class Endpoints Limit read every GET 600 per minute write POST, PATCH and DELETE on content, taxonomy, keys and webhooks 120 per minute upload POST /media/upload-url60 per minute pipeline POST /pipeline/runs10 per minute Every response carries
RateLimit-Limit,RateLimit-RemainingandRateLimit-Reset, so you can slow down before you are refused rather than after.RateLimit-LimitRequests permitted in the current window for this endpoint class.RateLimit-RemainingRequests left in the current window.RateLimit-ResetUnix seconds at which the window resets.Retry-AfterSeconds to wait before retrying.
- 500
INTERNAL_ERROR. Something failed on our side. The message is deliberately generic; the detail is in our logs against therequest_idin the body, so quote it if you contact support.Safe to retry, and safer still with the same
Idempotency-Key, which guarantees you do not create a second object if the first request actually succeeded. - 503
MAINTENANCE. Writes are paused, either platform wide or for your Site. Reads usually keep working, and your published blog is served from cache and stays up. Retry after the window given inRetry-After.Retry-AfterSeconds to wait before retrying.
Request shape
curl https://api.writavo.com/v1/pipeline/runs \
-H "Authorization: Bearer wv_sk_EXAMPLE0000000000000000000000000000"Generated from the specification, so it shows the path, the required headers and the body shape. The guides carry the end to end examples.
/pipeline/runsRequest a pipeline run#
- Scope
- pipeline:run
- Rate limit
- 10/min (pipeline)
- Publishable key
- refused
- Plan feature
- ai.article_generation
- Billing
- spends credits
- Dashboard permission
- pipeline.run
This is the only billable operation in this API.
It asks the engine to work on your Site at the next opportunity, rather than waiting for the normal cadence. It returns 202 immediately. It does not wait for articles to be written, and it does not tell you how many will be: what the engine does depends on what is in your queue and how far the credits go.
Four gates, checked in this order, each with its own error code:
| Gate | Failure | Meaning |
|---|---|---|
| Scope | 403 INSUFFICIENT_SCOPE | This key does not carry pipeline:run. |
| Entitlement | 402 NOT_ENTITLED | Your plan does not include AI generation. Upgrade. |
| Credits | 402 INSUFFICIENT_CREDITS | The organisation cannot afford the next unit of work. Top up. |
| Spend cap | 402 SPEND_CAP_REACHED | This Site hit its own monthly ceiling. Raise it or wait for the reset. |
The order matters: an entitlement failure is answered before a credits failure, so a caller who is not on the right plan never learns anything about the balance.
Charging happens per unit of work, after that work succeeds, not up front. A run that exhausts the balance part way through stops at the next stage boundary and finishes as partial. Nothing is rolled back and no article is left half written. Poll GET /pipeline/runs/{id} for the outcome, or subscribe to pipeline.run.completed once webhooks are available.
Idempotency-Key is required. Two identical requests within the retention window produce one run, which is what stops a retried network timeout from spending twice.
Parameters
| Name | In | Type | Notes |
|---|---|---|---|
| Idempotency-Key* | header | string | A unique key you generate per logical operation, 1 to 255 printable ASCII characters. A UUID is the obvious choice. Retry with the same key and the same body and you get the original response replayed rather than a second object. This is what makes a network timeout safe: you never know whether the first request landed, so you retry with the same key and find out. Same key with a different body is Keys are scoped to the Site and the endpoint, and are retained for 24 hours. After that the same key is a new operation. |
Request body (optional)
| Field | Type | Notes |
|---|---|---|
| max_articles | integer | An upper bound on how many articles this run may produce. Your own safety valve on top of the platform spend cap. Omit to use the Site's configured batch size. |
Responses
- 202
The run was accepted and queued.
Field Type Notes id* uuid status* "queued" requested_at* date-time estimated_start_at date-time | null When the engine expects to pick this up. Advisory.
- 400
INVALID_REQUEST. The request could not be parsed, or a parameter is not usable: bad JSON, an unknown query parameter value, or a missing required header. - 401
INVALID_API_KEY,API_KEY_REVOKEDorAPI_KEY_EXPIRED. There is no key, or it is not usable. This response never distinguishes "no such key" from "wrong key", so a caller cannot probe for valid keys. - 402
NOT_ENTITLED,INSUFFICIENT_CREDITSorSPEND_CAP_REACHED. The request was understood and you were permitted to make it, but it cannot be paid for. Three distinct codes because the fixes differ: upgrade the plan, top up credits, or raise the Site's cap.These are 402 rather than 403 on purpose. A 403 says "you may not"; these all say "not yet, and here is how to change that".
- 403
INSUFFICIENT_SCOPE. The key is valid but does not carry the scope this operation requires, or its creator's permissions no longer cover it.This is the only 403 in the API. In particular it is never returned for an object belonging to another Site: that case is always 404, so this response never reveals that something exists.
- 409
SLUG_CONFLICT,IDEMPOTENCY_KEY_CONFLICT,IDEMPOTENCY_KEY_IN_FLIGHTorCONFLICT. The request is valid but collides with the current state: a slug is taken, an idempotency key was reused with a different body or is still in flight, or the object moved while you were working on it. Readcodeto tell which, then re-read and retry. - 422
VALIDATION_FAILED. The request parsed but the values are not acceptable.error.fieldsmaps each offending field to a message you can put next to the input.Common causes: publishing without a title, slug or content; scheduling in the past; and sending
statuson a create or update, which is how the API refuses to let a client push content into the AI pipeline. - 429
RATE_LIMIT_EXCEEDED. Back off and honourRetry-After.Limits are per key, per minute, by endpoint class. Writes are limited harder than reads because they cost more to serve, and pipeline runs hardest of all because they cost real money.
Class Endpoints Limit read every GET 600 per minute write POST, PATCH and DELETE on content, taxonomy, keys and webhooks 120 per minute upload POST /media/upload-url60 per minute pipeline POST /pipeline/runs10 per minute Every response carries
RateLimit-Limit,RateLimit-RemainingandRateLimit-Reset, so you can slow down before you are refused rather than after.RateLimit-LimitRequests permitted in the current window for this endpoint class.RateLimit-RemainingRequests left in the current window.RateLimit-ResetUnix seconds at which the window resets.Retry-AfterSeconds to wait before retrying.
- 500
INTERNAL_ERROR. Something failed on our side. The message is deliberately generic; the detail is in our logs against therequest_idin the body, so quote it if you contact support.Safe to retry, and safer still with the same
Idempotency-Key, which guarantees you do not create a second object if the first request actually succeeded. - 503
MAINTENANCE. Writes are paused, either platform wide or for your Site. Reads usually keep working, and your published blog is served from cache and stays up. Retry after the window given inRetry-After.Retry-AfterSeconds to wait before retrying.
Request shape
curl -X POST https://api.writavo.com/v1/pipeline/runs \
-H "Authorization: Bearer wv_sk_EXAMPLE0000000000000000000000000000" \
-H "Idempotency-Key: $(uuidgen)" \
-H "Content-Type: application/json" \
-d '{}'Generated from the specification, so it shows the path, the required headers and the body shape. The guides carry the end to end examples.
/pipeline/runs/{id}Read one pipeline run#
- Scope
- pipeline:read
- Rate limit
- 600/min (read)
- Publishable key
- refused
- Another Site's id
- 404
- Dashboard permission
- pipeline.run
The outcome of a run. status: partial with an error_summary is what you see when a run stopped early, whether because credits ran out, the spend cap was reached, or a vendor call failed. items_succeeded tells you what you did get.
Parameters
| Name | In | Type | Notes |
|---|---|---|---|
| id* | path | uuid |
Responses
- 200PipelineRun
The pipeline run.
- 401
INVALID_API_KEY,API_KEY_REVOKEDorAPI_KEY_EXPIRED. There is no key, or it is not usable. This response never distinguishes "no such key" from "wrong key", so a caller cannot probe for valid keys. - 403
INSUFFICIENT_SCOPE. The key is valid but does not carry the scope this operation requires, or its creator's permissions no longer cover it.This is the only 403 in the API. In particular it is never returned for an object belonging to another Site: that case is always 404, so this response never reveals that something exists.
- 404
NOT_FOUND. Either no such object exists, or it exists and belongs to a different Site.These two cases are deliberately indistinguishable, and neither ever returns 403. A 403 would confirm the object exists, which would let anyone with a valid key enumerate other customers' content by id. If you are certain the id is right, check you are using the key for the correct Site.
- 429
RATE_LIMIT_EXCEEDED. Back off and honourRetry-After.Limits are per key, per minute, by endpoint class. Writes are limited harder than reads because they cost more to serve, and pipeline runs hardest of all because they cost real money.
Class Endpoints Limit read every GET 600 per minute write POST, PATCH and DELETE on content, taxonomy, keys and webhooks 120 per minute upload POST /media/upload-url60 per minute pipeline POST /pipeline/runs10 per minute Every response carries
RateLimit-Limit,RateLimit-RemainingandRateLimit-Reset, so you can slow down before you are refused rather than after.RateLimit-LimitRequests permitted in the current window for this endpoint class.RateLimit-RemainingRequests left in the current window.RateLimit-ResetUnix seconds at which the window resets.Retry-AfterSeconds to wait before retrying.
- 500
INTERNAL_ERROR. Something failed on our side. The message is deliberately generic; the detail is in our logs against therequest_idin the body, so quote it if you contact support.Safe to retry, and safer still with the same
Idempotency-Key, which guarantees you do not create a second object if the first request actually succeeded. - 503
MAINTENANCE. Writes are paused, either platform wide or for your Site. Reads usually keep working, and your published blog is served from cache and stays up. Retry after the window given inRetry-After.Retry-AfterSeconds to wait before retrying.
Request shape
curl https://api.writavo.com/v1/pipeline/runs/3f1b0c7a-0000-4000-8000-000000000001 \
-H "Authorization: Bearer wv_sk_EXAMPLE0000000000000000000000000000"Generated from the specification, so it shows the path, the required headers and the body shape. The guides carry the end to end examples.
/pipeline/queueRead the content queue#
- Scope
- pipeline:read
- Rate limit
- 600/min (read)
- Publishable key
- refused
- Dashboard permission
- pipeline.run
What the engine plans to write, highest priority first. Each item is a topic or keyword with a source: manual if a person added it, content_gap if gap analysis found it, competitor_seed if it came from a competitor page.
Read only in v1. Adding topics is a dashboard action.
signal carries the structured research behind a competitor_seed item: the angle, the hook, the data points and the gaps. It is extracted signal, never copied prose, which is the firewall that keeps generated output original.
Parameters
| Name | In | Type | Notes |
|---|---|---|---|
| cursor | query | string | The opaque cursor from |
| limit | query | integer | Page size. Values above the maximum are clamped rather than rejected, so a client asking for a thousand rows gets a hundred and a default 20 |
| status | query | PlanItemStatus | one of planned, in_progress, done, skipped |
| source | query | PlanItemSource | one of content_gap, manual, competitor_seed |
Responses
- 200a page of QueueItem
A page of queue items.
- 400
INVALID_REQUEST. The request could not be parsed, or a parameter is not usable: bad JSON, an unknown query parameter value, or a missing required header. - 401
INVALID_API_KEY,API_KEY_REVOKEDorAPI_KEY_EXPIRED. There is no key, or it is not usable. This response never distinguishes "no such key" from "wrong key", so a caller cannot probe for valid keys. - 403
INSUFFICIENT_SCOPE. The key is valid but does not carry the scope this operation requires, or its creator's permissions no longer cover it.This is the only 403 in the API. In particular it is never returned for an object belonging to another Site: that case is always 404, so this response never reveals that something exists.
- 429
RATE_LIMIT_EXCEEDED. Back off and honourRetry-After.Limits are per key, per minute, by endpoint class. Writes are limited harder than reads because they cost more to serve, and pipeline runs hardest of all because they cost real money.
Class Endpoints Limit read every GET 600 per minute write POST, PATCH and DELETE on content, taxonomy, keys and webhooks 120 per minute upload POST /media/upload-url60 per minute pipeline POST /pipeline/runs10 per minute Every response carries
RateLimit-Limit,RateLimit-RemainingandRateLimit-Reset, so you can slow down before you are refused rather than after.RateLimit-LimitRequests permitted in the current window for this endpoint class.RateLimit-RemainingRequests left in the current window.RateLimit-ResetUnix seconds at which the window resets.Retry-AfterSeconds to wait before retrying.
- 500
INTERNAL_ERROR. Something failed on our side. The message is deliberately generic; the detail is in our logs against therequest_idin the body, so quote it if you contact support.Safe to retry, and safer still with the same
Idempotency-Key, which guarantees you do not create a second object if the first request actually succeeded. - 503
MAINTENANCE. Writes are paused, either platform wide or for your Site. Reads usually keep working, and your published blog is served from cache and stays up. Retry after the window given inRetry-After.Retry-AfterSeconds to wait before retrying.
Request shape
curl https://api.writavo.com/v1/pipeline/queue \
-H "Authorization: Bearer wv_sk_EXAMPLE0000000000000000000000000000"Generated from the specification, so it shows the path, the required headers and the body shape. The guides carry the end to end examples.
Schemas
The shapes this resource sends and returns. Unknown fields may be added within /v1, so tolerate them.
PipelineRun#
| Field | Type | Notes |
|---|---|---|
| id* | uuidread only | |
| stage* | PipelineStage | The engine stage a run belongs to. |
| status* | PipelineRunStatus |
|
| started_at* | date-time | |
| finished_at | date-time | null | |
| items_processed | integer | |
| items_succeeded | integer | |
| items_failed | integer | |
| triggered_by | string |
|
| error_summary | string | null | Why the run ended early, when it did. On a |
PipelineRunStatus#
partial means the run did useful work and then stopped early. That is the normal outcome when credits or a spend cap run out mid run, and it is not an error: what was produced is kept.
runningsuccessfailedpartialPipelineStage#
The engine stage a run belongs to.
dispatchdiscoverscrapeextractplangenerateimproveclassifyimagespublishPlanItemSource#
Where the topic came from. manual if a person added it, content_gap if gap analysis found it, competitor_seed if it came from a competitor page.
content_gapmanualcompetitor_seedPlanItemStatus#
plannedin_progressdoneskippedQueueItem#
| Field | Type | Notes |
|---|---|---|
| id* | uuidread only | |
| topic_or_keyword* | string | |
| source* | PlanItemSource | Where the topic came from. |
| status* | PlanItemStatus | |
| signal | object | null | Structured research for a competitor sourced item: the angle, hook, data points and gaps found. Extracted signal, never copied prose. |
| target_publish_date | date | null | |
| priority | integer | |
| linked_article_id | uuid | null | The article this item produced, once it has been written. |
| created_at | date-timeread only |