diff --git a/.changeset/nine-jobs-leave.md b/.changeset/nine-jobs-leave.md
new file mode 100644
index 000000000..402f5ed1d
--- /dev/null
+++ b/.changeset/nine-jobs-leave.md
@@ -0,0 +1,5 @@
+---
+'simple-validators': patch
+---
+
+Add coerceNumber to string validation options
diff --git a/.changeset/silver-poems-lick.md b/.changeset/silver-poems-lick.md
new file mode 100644
index 000000000..38f7d183c
--- /dev/null
+++ b/.changeset/silver-poems-lick.md
@@ -0,0 +1,5 @@
+---
+'myst-frontmatter': patch
+---
+
+Allow funding award IDs to be numeric, and then be cast to strings.
diff --git a/packages/myst-frontmatter/src/funding/validators.ts b/packages/myst-frontmatter/src/funding/validators.ts
index 589bf8bc9..a7d55a9f1 100644
--- a/packages/myst-frontmatter/src/funding/validators.ts
+++ b/packages/myst-frontmatter/src/funding/validators.ts
@@ -28,7 +28,7 @@ export function validateAward(input: any, stash: ReferenceStash, opts: Validatio
   if (value === undefined) return undefined;
   const output: Award = {};
   if (defined(value.id)) {
-    output.id = validateString(value.id, incrementOptions('id', opts));
+    output.id = validateString(value.id, { ...incrementOptions('id', opts), coerceNumber: true });
   }
   if (defined(value.name)) {
     output.name = validateString(value.name, incrementOptions('name', opts));
diff --git a/packages/simple-validators/src/validators.ts b/packages/simple-validators/src/validators.ts
index 879a53e98..839f09567 100644
--- a/packages/simple-validators/src/validators.ts
+++ b/packages/simple-validators/src/validators.ts
@@ -90,10 +90,14 @@ export function validateNumber(
  */
 export function validateString(
   input: any,
-  opts: { maxLength?: number; regex?: string | RegExp } & ValidationOptions,
+  opts: { coerceNumber?: boolean; maxLength?: number; regex?: string | RegExp } & ValidationOptions,
 ): string | undefined {
-  if (typeof input !== 'string') return validationError(`must be string`, opts);
   let value = input as string;
+  if (opts.coerceNumber && typeof value === 'number') {
+    if (Number.isNaN(value)) validationWarning('is not a number', opts);
+    value = String(value);
+  }
+  if (typeof value !== 'string') return validationError(`must be string`, opts);
   if (opts.maxLength && value.length > opts.maxLength) {
     return validationError(`must be less than ${opts.maxLength} chars`, opts);
   }