diff --git a/api/identity/associations.yaml b/api/identity/associations.yaml
index 784bb5d6..6d282e8d 100644
--- a/api/identity/associations.yaml
+++ b/api/identity/associations.yaml
@@ -62,6 +62,7 @@ paths:
               validated_at:
                 type: integer
                 description: Timestamp indicating the time that the 3pid was validated.
+            required: ['medium', 'address', 'validated_at']
         400:
           description: |-
             The session has not been validated.
@@ -158,6 +159,14 @@ paths:
               signatures:
                 type: object
                 description: The signatures of the verifying identity services which show that the association should be trusted, if you trust the verifying identity services.
+            required:
+              - address
+              - medium
+              - mxid
+              - not_before
+              - not_after
+              - ts
+              - signatures
         400:
           description: |-
             The association was not published.
diff --git a/api/identity/email_associations.yaml b/api/identity/email_associations.yaml
index 8431c9e8..c9fb0cd7 100644
--- a/api/identity/email_associations.yaml
+++ b/api/identity/email_associations.yaml
@@ -93,6 +93,7 @@ paths:
               sid:
                 type: string
                 description: The session ID.
+            required: ['sid']
         400:
           description: |
             An error ocurred.  Some possible errors are:
@@ -151,6 +152,7 @@ paths:
               success:
                 type: boolean
                 description: Whether the validation was successful or not.
+            required: ['success']
     get:
       summary: Validate ownership of an email address.
       description: |-
diff --git a/api/identity/invitation_signing.yaml b/api/identity/invitation_signing.yaml
index 982dbff7..c595299f 100644
--- a/api/identity/invitation_signing.yaml
+++ b/api/identity/invitation_signing.yaml
@@ -71,6 +71,7 @@ paths:
               token:
                 type: string
                 description: The token for the invitation.
+            required: ['mxid', 'sender', 'signatures', 'token']
           examples:
             application/json: {
               "mxid": "@foo:bar.com",
diff --git a/api/identity/lookup.yaml b/api/identity/lookup.yaml
index bfd2153e..3bc58be5 100644
--- a/api/identity/lookup.yaml
+++ b/api/identity/lookup.yaml
@@ -86,6 +86,14 @@ paths:
               signatures:
                 type: object
                 description: The signatures of the verifying identity services which show that the association should be trusted, if you trust the verifying identity services.
+            required:
+              - address
+              - medium
+              - mxid
+              - not_before
+              - not_after
+              - ts
+              - signatures
   "/bulk_lookup":
     post:
       summary: Lookup Matrix user IDs for a list of 3pids.
diff --git a/api/identity/phone_associations.yaml b/api/identity/phone_associations.yaml
index c2cc6cfe..605dadcc 100644
--- a/api/identity/phone_associations.yaml
+++ b/api/identity/phone_associations.yaml
@@ -99,6 +99,7 @@ paths:
               sid:
                 type: string
                 description: The session ID.
+            required: ['sid']
         400:
           description: |
             An error ocurred. Some possible errors are:
@@ -157,6 +158,7 @@ paths:
               success:
                 type: boolean
                 description: Whether the validation was successful or not.
+            required: ['success']
     get:
       summary: Validate ownership of a phone number.
       description: |-
diff --git a/api/identity/pubkey.yaml b/api/identity/pubkey.yaml
index 00796975..45f8b99a 100644
--- a/api/identity/pubkey.yaml
+++ b/api/identity/pubkey.yaml
@@ -80,6 +80,7 @@ paths:
               valid:
                 type: boolean
                 description: Whether the public key is recognised and is currently valid.
+            required: ['valid']
   "/pubkey/ephemeral/isvalid":
     get:
       summary: Check whether a short-term public key is valid.
@@ -108,3 +109,4 @@ paths:
               valid:
                 type: boolean
                 description: Whether the public key is recognised and is currently valid.
+            required: ['valid']
diff --git a/api/identity/store_invite.yaml b/api/identity/store_invite.yaml
index 6b847b5b..d6fae7a7 100644
--- a/api/identity/store_invite.yaml
+++ b/api/identity/store_invite.yaml
@@ -90,6 +90,7 @@ paths:
               display_name:
                 type: string
                 description: The generated (redacted) display_name.
+            required: ['token', 'public_keys', 'display_name']
             example:
               application/json: {
                   "token": "sometoken",