Finalize a session backfill

curl --request POST \
  --url https://api.get-exo.com/v1/ingest/session-finalize \
  --header 'X-Exo-API-Key: <api-key>'

const options = {method: 'POST', headers: {'X-Exo-API-Key': '<api-key>'}};

fetch('https://api.get-exo.com/v1/ingest/session-finalize', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "enqueued": true,
  "alreadyInFlight": false,
  "jobId": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

POST

ingest

session-finalize

Finalize a session backfill

curl --request POST \
  --url https://api.get-exo.com/v1/ingest/session-finalize \
  --header 'X-Exo-API-Key: <api-key>'

const options = {method: 'POST', headers: {'X-Exo-API-Key': '<api-key>'}};

fetch('https://api.get-exo.com/v1/ingest/session-finalize', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "enqueued": true,
  "alreadyInFlight": false,
  "jobId": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

{
  "code": "<string>",
  "detail": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "<string>",
  "documentationUrl": "<string>",
  "errors": [
    {
      "code": "<string>",
      "field": "<string>",
      "message": "<string>",
      "pointer": "<string>"
    }
  ],
  "requestId": "",
  "suggestedAction": "<string>"
}

Signal that a session backfill has finished sending, so Exo can build the layers session ingestion does not produce on its own: graph edges, domains, the identity extraction and the first cognition cycle. Call it once after the last batch is accepted. Idempotent: calling it again while a build is already running is a no-op and comes back with alreadyInFlight set. Poll GET /v1/ingest/session-status to watch the layers fill in.

Authorization

This route requires the write scope. A missing or invalid credential returns 401 authentication_error. A valid credential without the scope returns 403 permission_denied, and the problem body names the exact scope required.

Headers

These are request conventions the contract does not declare as parameters, so they do not appear in the schema tables below.

Header	Applies	What it does
`X-Exo-API-Key`	Required	Your Exo API key, `exo_<env>_<token>`. `Authorization: Bearer exo_...` is accepted as an alternate.
`X-Exo-Subject`	Refused	This route scopes data by the key owner. Sending the header returns 400 `subject_not_supported`, rather than silently reading the wrong partition.
`Idempotency-Key`	Not honoured	This route does not replay: finalize is naturally idempotent and reports alreadyInFlight.
`X-Request-Id`	Response	Returned on every response, including `204`s. Quote it in a support request.

Success responses

Status	Meaning
`202`	Whether the build was enqueued or was already running.

Errors

Status	Code	When
`400`	`invalid_request`	Malformed request, for example an invalid cursor.
`401`	`authentication_error`	Missing or invalid credentials.
`403`	`permission_denied`	Missing scope, or an unprovisioned subject selector.
`404`	`not_found`	The resource does not exist, or is not visible to this caller.
`409`	`conflict`	A conflict with the current state of the resource.
`422`	`validation_error`	The request was understood but failed field validation.
`429`	`rate_limit_exceeded`	Rate limit exceeded. Retry after the Retry-After interval.
`503`	`service_degraded`	A dependency is temporarily unavailable. Safe to retry.

Every error is an RFC 9457 application/problem+json body carrying a stable code, a requestId, and a suggestedAction where Exo has one. See Errors.

Notes

Finalize is what builds the rest. Graph edges, domains, identity extraction and the first cognition cycle all run from here.
Idempotent. Calling it again while a build is running is a no-op and returns alreadyInFlight.

Authorizations

X-Exo-API-Key

string

header

required

An Exo API key (exo_...) sent as the X-Exo-API-Key header.

Response

Whether the build was enqueued or was already running.

POST /v1/ingest/session-finalize: kicks the cold-start warm-layer build.

After a Claude Code backfill drains, the client calls finalize to enqueue the enrichment (session+similarity edges, domains, identity, manifold). Idempotent: enqueued is False + alreadyInFlight True when a build is already running.

enqueued

boolean

required

alreadyInFlight

boolean

default:false

jobId

string | null

Ingest a session batch

Ingest agent signals

⌘I

​Authorization

​Headers

​Success responses

​Errors

​Notes