diff --git a/apps/api/src/api-v1/consumers/admin-get-consumer-by-token.ts b/apps/api/src/api-v1/consumers/admin-get-consumer-by-token.ts
index fb4d9878..57f83de9 100644
--- a/apps/api/src/api-v1/consumers/admin-get-consumer-by-token.ts
+++ b/apps/api/src/api-v1/consumers/admin-get-consumer-by-token.ts
@@ -3,7 +3,12 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { aclAdmin } from '@/lib/acl-admin'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { consumerTokenParamsSchema, populateConsumerSchema } from './schemas'
 
@@ -26,9 +31,9 @@ const route = createRoute({
           schema: schema.consumerSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/api-v1/consumers/get-consumer.ts b/apps/api/src/api-v1/consumers/get-consumer.ts
index 76fefa48..d3bdf82b 100644
--- a/apps/api/src/api-v1/consumers/get-consumer.ts
+++ b/apps/api/src/api-v1/consumers/get-consumer.ts
@@ -3,7 +3,12 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { acl } from '@/lib/acl'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { consumerIdParamsSchema, populateConsumerSchema } from './schemas'
 
@@ -26,9 +31,9 @@ const route = createRoute({
           schema: schema.consumerSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/api-v1/consumers/list-consumers.ts b/apps/api/src/api-v1/consumers/list-consumers.ts
index 85a75e05..38b68068 100644
--- a/apps/api/src/api-v1/consumers/list-consumers.ts
+++ b/apps/api/src/api-v1/consumers/list-consumers.ts
@@ -3,7 +3,12 @@ import { createRoute, type OpenAPIHono, z } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { acl } from '@/lib/acl'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { projectIdParamsSchema } from '../projects/schemas'
 import { paginationAndPopulateConsumerSchema } from './schemas'
@@ -27,9 +32,9 @@ const route = createRoute({
           schema: z.array(schema.consumerSelectSchema)
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/api-v1/consumers/upsert-consumer.ts b/apps/api/src/api-v1/consumers/upsert-consumer.ts
index 919f871c..ea1d85af 100644
--- a/apps/api/src/api-v1/consumers/upsert-consumer.ts
+++ b/apps/api/src/api-v1/consumers/upsert-consumer.ts
@@ -7,7 +7,15 @@ import { upsertStripeConnectCustomer } from '@/lib/billing/upsert-stripe-connect
 import { upsertStripeCustomer } from '@/lib/billing/upsert-stripe-customer'
 import { upsertStripePricingPlans } from '@/lib/billing/upsert-stripe-pricing-plans'
 import { upsertStripeSubscription } from '@/lib/billing/upsert-stripe-subscription'
-import { assert, parseZodSchema, sha256 } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponse409,
+  openapiErrorResponse410,
+  openapiErrorResponses,
+  parseZodSchema,
+  sha256
+} from '@/lib/utils'
 
 const route = createRoute({
   description:
@@ -35,9 +43,11 @@ const route = createRoute({
           schema: schema.consumerSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404,
+    ...openapiErrorResponse409,
+    ...openapiErrorResponse410
   }
 })
 
diff --git a/apps/api/src/api-v1/index.ts b/apps/api/src/api-v1/index.ts
index e5a2c4fa..b731ae48 100644
--- a/apps/api/src/api-v1/index.ts
+++ b/apps/api/src/api-v1/index.ts
@@ -1,4 +1,5 @@
 import { OpenAPIHono } from '@hono/zod-openapi'
+import { fromError } from 'zod-validation-error'
 
 import type { AuthenticatedEnv } from '@/lib/types'
 import * as middleware from '@/lib/middleware'
@@ -22,7 +23,18 @@ import { registerV1UsersGetUser } from './users/get-user'
 import { registerV1UsersUpdateUser } from './users/update-user'
 import { registerV1StripeWebhook } from './webhooks/stripe-webhook'
 
-export const apiV1 = new OpenAPIHono()
+export const apiV1 = new OpenAPIHono({
+  defaultHook: (result, ctx) => {
+    if (!result.success) {
+      return ctx.json(
+        {
+          error: fromError(result.error).toString()
+        },
+        400
+      )
+    }
+  }
+})
 
 // Public routes
 const pub = new OpenAPIHono()
diff --git a/apps/api/src/api-v1/projects/create-project.ts b/apps/api/src/api-v1/projects/create-project.ts
index 08a5bebd..ee4f197f 100644
--- a/apps/api/src/api-v1/projects/create-project.ts
+++ b/apps/api/src/api-v1/projects/create-project.ts
@@ -5,7 +5,12 @@ import { db, schema } from '@/db'
 import { aclTeamMember } from '@/lib/acl-team-member'
 import { getProviderToken } from '@/lib/auth/get-provider-token'
 import { ensureAuthUser } from '@/lib/ensure-auth-user'
-import { assert, parseZodSchema, sha256 } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponses,
+  parseZodSchema,
+  sha256
+} from '@/lib/utils'
 
 const route = createRoute({
   description: 'Creates a new project.',
@@ -32,9 +37,8 @@ const route = createRoute({
           schema: schema.projectSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses
   }
 })
 
@@ -64,7 +68,7 @@ export function registerV1ProjectsCreateProject(
         _providerToken: getProviderToken({ id })
       })
       .returning()
-    assert(project, 404, `Failed to create project "${body.name}"`)
+    assert(project, 500, `Failed to create project "${body.name}"`)
 
     return c.json(parseZodSchema(schema.projectSelectSchema, project))
   })
diff --git a/apps/api/src/api-v1/projects/get-project.ts b/apps/api/src/api-v1/projects/get-project.ts
index 0b867fa9..97a5f9a5 100644
--- a/apps/api/src/api-v1/projects/get-project.ts
+++ b/apps/api/src/api-v1/projects/get-project.ts
@@ -3,7 +3,12 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { acl } from '@/lib/acl'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { populateProjectSchema, projectIdParamsSchema } from './schemas'
 
@@ -26,9 +31,9 @@ const route = createRoute({
           schema: schema.projectSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/api-v1/projects/list-projects.ts b/apps/api/src/api-v1/projects/list-projects.ts
index 36db689a..710d8ca4 100644
--- a/apps/api/src/api-v1/projects/list-projects.ts
+++ b/apps/api/src/api-v1/projects/list-projects.ts
@@ -3,7 +3,7 @@ import { createRoute, type OpenAPIHono, z } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { ensureAuthUser } from '@/lib/ensure-auth-user'
-import { parseZodSchema } from '@/lib/utils'
+import { openapiErrorResponses, parseZodSchema } from '@/lib/utils'
 
 import { paginationAndPopulateProjectSchema } from './schemas'
 
@@ -25,9 +25,8 @@ const route = createRoute({
           schema: z.array(schema.projectSelectSchema)
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses
   }
 })
 
diff --git a/apps/api/src/api-v1/projects/update-project.ts b/apps/api/src/api-v1/projects/update-project.ts
index df987fc3..59395802 100644
--- a/apps/api/src/api-v1/projects/update-project.ts
+++ b/apps/api/src/api-v1/projects/update-project.ts
@@ -2,7 +2,12 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { projectIdParamsSchema } from './schemas'
 
@@ -32,9 +37,9 @@ const route = createRoute({
           schema: schema.projectSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
@@ -50,7 +55,7 @@ export function registerV1ProjectsUpdateProject(
       .set(body)
       .where(eq(schema.projects.id, projectId))
       .returning()
-    assert(project, 404, `Failed to update project "${projectId}"`)
+    assert(project, 500, `Failed to update project "${projectId}"`)
 
     return c.json(parseZodSchema(schema.projectSelectSchema, project))
   })
diff --git a/apps/api/src/api-v1/teams/create-team.ts b/apps/api/src/api-v1/teams/create-team.ts
index 46aef175..5f2e0438 100644
--- a/apps/api/src/api-v1/teams/create-team.ts
+++ b/apps/api/src/api-v1/teams/create-team.ts
@@ -4,7 +4,7 @@ import type { AuthenticatedEnv } from '@/lib/types'
 import { db, schema } from '@/db'
 import { ensureAuthUser } from '@/lib/ensure-auth-user'
 import { ensureUniqueTeamSlug } from '@/lib/ensure-unique-team-slug'
-import { assert, parseZodSchema } from '@/lib/utils'
+import { assert, openapiErrorResponses, parseZodSchema } from '@/lib/utils'
 
 const route = createRoute({
   description: 'Creates a team.',
@@ -31,9 +31,8 @@ const route = createRoute({
           schema: schema.teamSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses
   }
 })
 
@@ -52,7 +51,7 @@ export function registerV1TeamsCreateTeam(app: OpenAPIHono<AuthenticatedEnv>) {
           ownerId: user.id
         })
         .returning()
-      assert(team, 404, `Failed to create team "${body.slug}"`)
+      assert(team, 500, `Failed to create team "${body.slug}"`)
 
       const [teamMember] = await tx.insert(schema.teamMembers).values({
         userId: user.id,
@@ -63,7 +62,7 @@ export function registerV1TeamsCreateTeam(app: OpenAPIHono<AuthenticatedEnv>) {
       })
       assert(
         teamMember,
-        404,
+        500,
         `Failed to create team member owner for team "${body.slug}"`
       )
 
diff --git a/apps/api/src/api-v1/teams/delete-team.ts b/apps/api/src/api-v1/teams/delete-team.ts
index dd468f7b..0c943a49 100644
--- a/apps/api/src/api-v1/teams/delete-team.ts
+++ b/apps/api/src/api-v1/teams/delete-team.ts
@@ -3,7 +3,12 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { aclTeamAdmin } from '@/lib/acl-team-admin'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { teamSlugParamsSchema } from './schemas'
 
@@ -25,9 +30,9 @@ const route = createRoute({
           schema: schema.teamSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/api-v1/teams/get-team.ts b/apps/api/src/api-v1/teams/get-team.ts
index 76bfddd3..451ccea0 100644
--- a/apps/api/src/api-v1/teams/get-team.ts
+++ b/apps/api/src/api-v1/teams/get-team.ts
@@ -3,7 +3,12 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { aclTeamMember } from '@/lib/acl-team-member'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { teamSlugParamsSchema } from './schemas'
 
@@ -25,9 +30,9 @@ const route = createRoute({
           schema: schema.teamSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/api-v1/teams/list-teams.ts b/apps/api/src/api-v1/teams/list-teams.ts
index aab10139..31ea2f5a 100644
--- a/apps/api/src/api-v1/teams/list-teams.ts
+++ b/apps/api/src/api-v1/teams/list-teams.ts
@@ -2,7 +2,7 @@ import { createRoute, type OpenAPIHono, z } from '@hono/zod-openapi'
 
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, paginationSchema, schema } from '@/db'
-import { parseZodSchema } from '@/lib/utils'
+import { openapiErrorResponses, parseZodSchema } from '@/lib/utils'
 
 const route = createRoute({
   description: 'Lists all teams the authenticated user belongs to.',
@@ -22,9 +22,8 @@ const route = createRoute({
           schema: z.array(schema.teamSelectSchema)
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses
   }
 })
 
diff --git a/apps/api/src/api-v1/teams/members/create-team-member.ts b/apps/api/src/api-v1/teams/members/create-team-member.ts
index 6c2f0436..228f74c5 100644
--- a/apps/api/src/api-v1/teams/members/create-team-member.ts
+++ b/apps/api/src/api-v1/teams/members/create-team-member.ts
@@ -3,7 +3,13 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { and, db, eq, schema } from '@/db'
 import { aclTeamAdmin } from '@/lib/acl-team-admin'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponse409,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { teamSlugParamsSchema } from '../schemas'
 
@@ -33,9 +39,10 @@ const route = createRoute({
           schema: schema.teamMemberSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404,
+    ...openapiErrorResponse409
   }
 })
 
diff --git a/apps/api/src/api-v1/teams/members/delete-team-member.ts b/apps/api/src/api-v1/teams/members/delete-team-member.ts
index de859eb9..48a0cc15 100644
--- a/apps/api/src/api-v1/teams/members/delete-team-member.ts
+++ b/apps/api/src/api-v1/teams/members/delete-team-member.ts
@@ -4,7 +4,12 @@ import type { AuthenticatedEnv } from '@/lib/types'
 import { and, db, eq, schema } from '@/db'
 import { aclTeamAdmin } from '@/lib/acl-team-admin'
 import { aclTeamMember } from '@/lib/acl-team-member'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { teamSlugTeamMemberUserIdParamsSchema } from './schemas'
 
@@ -26,9 +31,9 @@ const route = createRoute({
           schema: schema.teamMemberSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/api-v1/teams/members/update-team-member.ts b/apps/api/src/api-v1/teams/members/update-team-member.ts
index b68140ed..66f347d1 100644
--- a/apps/api/src/api-v1/teams/members/update-team-member.ts
+++ b/apps/api/src/api-v1/teams/members/update-team-member.ts
@@ -4,7 +4,12 @@ import type { AuthenticatedEnv } from '@/lib/types'
 import { and, db, eq, schema } from '@/db'
 import { aclTeamAdmin } from '@/lib/acl-team-admin'
 import { aclTeamMember } from '@/lib/acl-team-member'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { teamSlugTeamMemberUserIdParamsSchema } from './schemas'
 
@@ -34,9 +39,9 @@ const route = createRoute({
           schema: schema.teamMemberSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/api-v1/teams/update-team.ts b/apps/api/src/api-v1/teams/update-team.ts
index 6df9cf29..aebc2f11 100644
--- a/apps/api/src/api-v1/teams/update-team.ts
+++ b/apps/api/src/api-v1/teams/update-team.ts
@@ -3,7 +3,12 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { aclTeamAdmin } from '@/lib/acl-team-admin'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { teamSlugParamsSchema } from './schemas'
 
@@ -33,9 +38,9 @@ const route = createRoute({
           schema: schema.teamSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
@@ -50,7 +55,7 @@ export function registerV1TeamsUpdateTeam(app: OpenAPIHono<AuthenticatedEnv>) {
       .set(body)
       .where(eq(schema.teams.slug, teamSlug))
       .returning()
-    assert(team, 404, `Failed to update team "${teamSlug}"`)
+    assert(team, 404, `Team not found "${teamSlug}"`)
 
     return c.json(parseZodSchema(schema.teamSelectSchema, team))
   })
diff --git a/apps/api/src/api-v1/users/get-user.ts b/apps/api/src/api-v1/users/get-user.ts
index da5306bb..76bc4e19 100644
--- a/apps/api/src/api-v1/users/get-user.ts
+++ b/apps/api/src/api-v1/users/get-user.ts
@@ -3,7 +3,12 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { acl } from '@/lib/acl'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { userIdParamsSchema } from './schemas'
 
@@ -25,9 +30,9 @@ const route = createRoute({
           schema: schema.userSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/api-v1/users/update-user.ts b/apps/api/src/api-v1/users/update-user.ts
index 855ae321..b4b10a8f 100644
--- a/apps/api/src/api-v1/users/update-user.ts
+++ b/apps/api/src/api-v1/users/update-user.ts
@@ -3,7 +3,12 @@ import { createRoute, type OpenAPIHono } from '@hono/zod-openapi'
 import type { AuthenticatedEnv } from '@/lib/types'
 import { db, eq, schema } from '@/db'
 import { acl } from '@/lib/acl'
-import { assert, parseZodSchema } from '@/lib/utils'
+import {
+  assert,
+  openapiErrorResponse404,
+  openapiErrorResponses,
+  parseZodSchema
+} from '@/lib/utils'
 
 import { userIdParamsSchema } from './schemas'
 
@@ -33,9 +38,9 @@ const route = createRoute({
           schema: schema.userSelectSchema
         }
       }
-    }
-    // TODO
-    // ...openApiErrorResponses
+    },
+    ...openapiErrorResponses,
+    ...openapiErrorResponse404
   }
 })
 
diff --git a/apps/api/src/db/schema/temp b/apps/api/src/db/schema/temp
index 2f2bfacb..2ad6fb02 100644
--- a/apps/api/src/db/schema/temp
+++ b/apps/api/src/db/schema/temp
@@ -220,7 +220,7 @@ export function createOpenAPIHonoRoute<TAuthenticated extends boolean>(
         }
       }
       // TODO
-      // ...openApiErrorResponses
+      // ...openppiErrorResponses
     }
   })
 }
diff --git a/apps/api/src/lib/utils.ts b/apps/api/src/lib/utils.ts
index 5ab8536d..4ecd9ab5 100644
--- a/apps/api/src/lib/utils.ts
+++ b/apps/api/src/lib/utils.ts
@@ -2,6 +2,7 @@ import { createHash, randomUUID } from 'node:crypto'
 
 import type { ContentfulStatusCode } from 'hono/utils/http-status'
 import type { ZodSchema } from 'zod'
+import { z } from '@hono/zod-openapi'
 
 import { HttpError, ZodValidationError } from './errors'
 
@@ -49,3 +50,47 @@ export function parseZodSchema<T>(
     })
   }
 }
+
+const errorContent = {
+  'application/json': {
+    schema: z.object({
+      error: z.string()
+    })
+  }
+} as const
+
+export const openapiErrorResponses = {
+  400: {
+    description: 'Bad Request',
+    content: errorContent
+  },
+  401: {
+    description: 'Unauthorized',
+    content: errorContent
+  },
+  403: {
+    description: 'Forbidden',
+    content: errorContent
+  }
+} as const
+
+export const openapiErrorResponse404 = {
+  404: {
+    description: 'Not Found',
+    content: errorContent
+  }
+} as const
+
+export const openapiErrorResponse409 = {
+  409: {
+    description: 'Conflict',
+    content: errorContent
+  }
+} as const
+
+export const openapiErrorResponse410 = {
+  410: {
+    description: 'Gone',
+    content: errorContent
+  }
+} as const