diff --git a/docs/apis/api-agent.md b/docs/apis/api-agent.md
index 99e28a26..fab7b32b 100644
--- a/docs/apis/api-agent.md
+++ b/docs/apis/api-agent.md
@@ -18,7 +18,7 @@ The request contains the following fields:
 
 ### Response
 
-The request contains the following fields:
+The response contains the following fields:
 - `thought`: Optional, a string, provides an interim agent thought
 - `observation`: Optional, a string, provides an interim agent thought
 - `answer`: Optional, a string, provides the final answer
@@ -61,6 +61,7 @@ Request:
 {
     "id": "blrqotfefnmnh7de-20",
     "service": "agent",
+    "flow": "default",
     "request": {
         "question": "What does NASA stand for?"
     }
diff --git a/docs/apis/api-embeddings.md b/docs/apis/api-embeddings.md
index b66280cb..7eda096d 100644
--- a/docs/apis/api-embeddings.md
+++ b/docs/apis/api-embeddings.md
@@ -10,7 +10,7 @@ The request contains the following fields:
 
 ### Response
 
-The request contains the following fields:
+The response contains the following fields:
 - `vectors`: Embeddings response, an array of arrays.  An embedding is
   an array of floating-point numbers.  As multiple embeddings may be
   returned, an array of embeddings is returned, hence an array
@@ -51,6 +51,7 @@ Request:
 {
     "id": "qgzw1287vfjc8wsk-2",
     "service": "embeddings",
+    "flow": "default",
     "request": {
         "text": "What is a cat?"
     }
diff --git a/docs/apis/api-graph-embeddings.md b/docs/apis/api-graph-embeddings.md
index 9af8b6f9..368d4678 100644
--- a/docs/apis/api-graph-embeddings.md
+++ b/docs/apis/api-graph-embeddings.md
@@ -17,7 +17,7 @@ The request contains the following fields:
 
 ### Response
 
-The request contains the following fields:
+The response contains the following fields:
 - `entities`: An array of graph entities.  The entity type is described here:
 
 TrustGraph uses the same schema for knowledge graph elements:
@@ -85,6 +85,7 @@ Request:
 {
     "id": "qgzw1287vfjc8wsk-3",
     "service": "graph-embeddings-query",
+    "flow": "default",
     "request": {
         "vectors": [
           [
diff --git a/docs/apis/api-graph-rag.md b/docs/apis/api-graph-rag.md
index 96821a38..b32c4682 100644
--- a/docs/apis/api-graph-rag.md
+++ b/docs/apis/api-graph-rag.md
@@ -14,7 +14,7 @@ The request contains the following fields:
 
 ### Response
 
-The request contains the following fields:
+The response contains the following fields:
 - `response`: LLM response
 
 ## REST service
@@ -52,6 +52,7 @@ Request:
 {
     "id": "blrqotfefnmnh7de-14",
     "service": "graph-rag",
+    "flow": "default",
     "request": {
         "query": "What does NASA stand for?"
     }
diff --git a/docs/apis/api-prompt.md b/docs/apis/api-prompt.md
index 9bb0cb49..ff50a6e2 100644
--- a/docs/apis/api-prompt.md
+++ b/docs/apis/api-prompt.md
@@ -15,7 +15,7 @@ The request contains the following fields:
 
 ### Response
 
-The request contains either of these fields:
+The response contains either of these fields:
 - `text`: A plain text response
 - `object`: A structured object, JSON-encoded
 
@@ -60,6 +60,7 @@ Request:
 {
     "id": "akshfkiehfkseffh-142",
     "service": "prompt",
+    "flow": "default",
     "request": {
         "id": "extract-definitions",
         "variables": {
diff --git a/docs/apis/api-text-completion.md b/docs/apis/api-text-completion.md
index b93c4c8a..1d8eb1c2 100644
--- a/docs/apis/api-text-completion.md
+++ b/docs/apis/api-text-completion.md
@@ -19,7 +19,7 @@ The request contains the following fields:
 
 ### Response
 
-The request contains the following fields:
+The response contains the following fields:
 - `response`: LLM response
 
 ## REST service
@@ -59,6 +59,7 @@ Request:
 {
     "id": "blrqotfefnmnh7de-1",
     "service": "text-completion",
+    "flow": "default",
     "request": {
         "system": "You are a helpful agent",
         "prompt": "What does NASA stand for?"
diff --git a/docs/apis/api-triples-query.md b/docs/apis/api-triples-query.md
index 6e096a56..f6038163 100644
--- a/docs/apis/api-triples-query.md
+++ b/docs/apis/api-triples-query.md
@@ -21,7 +21,7 @@ Returned triples will match all of `s`, `p` and `o` where provided.
 
 ### Response
 
-The request contains the following fields:
+The response contains the following fields:
 - `response`: A list of triples.
 
 Each triple contains `s`, `p` and `o` fields describing the
@@ -58,6 +58,7 @@ Request:
 {
     "id": "qgzw1287vfjc8wsk-4",
     "service": "triples-query",
+    "flow": "default",
     "request": {
         "s": {
             "v": "http://trustgraph.ai/e/space-station-modules",
diff --git a/docs/apis/websocket.md b/docs/apis/websocket.md
index 1895646c..07307cf4 100644
--- a/docs/apis/websocket.md
+++ b/docs/apis/websocket.md
@@ -18,13 +18,16 @@ When hosted using docker compose, you can access the service at
 
 ## Request
 
-A request message is a JSON message containing 3 fields:
+A request message is a JSON message containing 3/4 fields:
 
 - `id`: A unique ID which is used to correlate requests and responses.
   You should make sure it is unique.
 - `service`: The name of the service to invoke.
 - `request`: The request body which is passed to the service - this is
   defined in the API documentation for that service.
+- `flow`: Some APIs are supported by processors launched within a flow,
+  are are dependent on a flow running.  For such APIs, the flow identifier
+  needs to be provided.
 
 e.g.
 
@@ -32,6 +35,7 @@ e.g.
 {
     "id": "qgzw1287vfjc8wsk-1",
     "service": "graph-rag",
+    "flow": "default",
     "request": {
         "query": "What does NASA stand for?"
     }
@@ -86,6 +90,7 @@ Request:
 {
     "id": "blrqotfefnmnh7de-20",
     "service": "agent",
+    "flow": "default",
     "request": {
         "question": "What does NASA stand for?"
     }