diff --git a/routers/api/v1/api.go b/routers/api/v1/api.go
index 2edd859b5a..8d3c19a033 100644
--- a/routers/api/v1/api.go
+++ b/routers/api/v1/api.go
@@ -1563,6 +1563,7 @@ func Routes() *web.Route {
 				m.Combo("/boards").
 					Get(projects.ListProjectBoards).
 					Post(bind(api.NewProjectBoardPayload{}), projects.CreateProjectBoard)
+				m.Get("/boards/{boardId}/cards", projects.ListProjectBoardCards)
 			})
 
 			m.Group("/boards", func() {
diff --git a/routers/api/v1/projects/boards.go b/routers/api/v1/projects/boards.go
index c9f47641e6..afbdfb3fc2 100644
--- a/routers/api/v1/projects/boards.go
+++ b/routers/api/v1/projects/boards.go
@@ -6,6 +6,7 @@ package projects
 import (
 	"net/http"
 
+	issues_model "code.gitea.io/gitea/models/issues"
 	project_model "code.gitea.io/gitea/models/project"
 	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/setting"
@@ -69,6 +70,80 @@ func ListProjectBoards(ctx *context.APIContext) {
 
 }
 
+// ProjectBoardCard represents an issue card on a project board.
+type ProjectBoardCard struct {
+	ID    int64      `json:"id"`
+	Issue *api.Issue `json:"issue,omitempty"`
+}
+
+func ListProjectBoardCards(ctx *context.APIContext) {
+	// swagger:operation GET /projects/{projectId}/boards/{boardId}/cards board boardGetProjectBoardCards
+	// ---
+	// summary: Get project board cards
+	// produces:
+	// - application/json
+	// parameters:
+	//   - name: projectId
+	//     in: path
+	//     description: id of the project
+	//     type: string
+	//     required: true
+	//   - name: boardId
+	//     in: path
+	//     description: id of the board
+	//     type: string
+	//     required: true
+	// responses:
+	//	"200":
+	//	  "description": "Project board cards"
+	//	"403":
+	//	  "$ref": "#/responses/forbidden"
+	//	"404":
+	//	  "$ref": "#/responses/notFound"
+	projectID := ctx.ParamsInt64(":projectId")
+	project, err := project_model.GetProjectByID(ctx, projectID)
+	if err != nil {
+		ctx.Error(http.StatusNotFound, "ListProjectBoardCards", err)
+		return
+	}
+
+	boardID := ctx.ParamsInt64(":boardId")
+	var board *project_model.Board
+	if boardID == 0 {
+		board = &project_model.Board{
+			ID:        0,
+			ProjectID: project.ID,
+			Default:   true,
+			Title:     "Uncategorized",
+		}
+	} else {
+		board, err = project_model.GetBoard(ctx, boardID)
+		if err != nil {
+			ctx.Error(http.StatusNotFound, "GetProjectBoard", err)
+			return
+		}
+		if board.ProjectID != project.ID {
+			ctx.NotFound("BoardNotInProject", nil)
+			return
+		}
+	}
+
+	issues, err := issues_model.LoadIssuesFromBoard(ctx, board)
+	if err != nil {
+		ctx.InternalServerError(err)
+		return
+	}
+
+	cards := make([]*ProjectBoardCard, 0, len(issues))
+	for _, issue := range issues {
+		cards = append(cards, &ProjectBoardCard{
+			ID:    issue.ID,
+			Issue: convert.ToAPIIssue(ctx, issue),
+		})
+	}
+	ctx.JSON(http.StatusOK, cards)
+}
+
 func CreateProjectBoard(ctx *context.APIContext) {
 	// swagger:operation POST /projects/{projectId}/boards board boardCreateProjectBoard
 	// ---
diff --git a/services/convert/project.go b/services/convert/project.go
index 506202f073..1a7e5213a1 100644
--- a/services/convert/project.go
+++ b/services/convert/project.go
@@ -36,6 +36,7 @@ func ToApiProjectBoardList(
 func ToAPIProject(ctx context.Context, project *project_model.Project) *api.Project {
 
 	apiProject := &api.Project{
+		ID:          project.ID,
 		Title:       project.Title,
 		Description: project.Description,
 		BoardType:   uint8(project.BoardType),