diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 8952f95c..c4ae84bd 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -6738,6 +6738,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "urlencoding"
+version = "2.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "daf8dba3b7eb870caf1ddeed7bc9d2a049f3cfdfae7cb521b087cc33ae4c49da"
+
 [[package]]
 name = "urlpattern"
 version = "0.2.0"
@@ -7568,6 +7574,7 @@ dependencies = [
  "thiserror",
  "tokio",
  "tokio-stream",
+ "urlencoding",
  "uuid",
  "yaak_grpc",
  "yaak_models",
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 5fd41bf4..736b6854 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -58,6 +58,7 @@ tokio-stream = "0.1.15"
 uuid = "1.7.0"
 thiserror = "1.0.61"
 mime_guess = "2.0.5"
+urlencoding = "2.1.3"
 
 [workspace.dependencies]
 yaak_models = { path = "yaak_models" }
diff --git a/src-tauri/src/http_request.rs b/src-tauri/src/http_request.rs
index 9abcb9c5..0d3635ef 100644
--- a/src-tauri/src/http_request.rs
+++ b/src-tauri/src/http_request.rs
@@ -23,7 +23,7 @@ use tauri::{Manager, Runtime, WebviewWindow};
 use tokio::sync::oneshot;
 use tokio::sync::watch::Receiver;
 use yaak_models::models::{
-    Cookie, CookieJar, Environment, HttpRequest, HttpResponse, HttpResponseHeader,
+    Cookie, CookieJar, Environment, HttpRequest, HttpResponse, HttpResponseHeader, HttpUrlParameter,
 };
 use yaak_models::queries::{get_workspace, update_response_if_id, upsert_cookie_jar};
 
@@ -40,13 +40,8 @@ pub async fn send_http_request<R: Runtime>(
         .expect("Failed to get Workspace");
     let cb = &*window.app_handle().state::<PluginTemplateCallback>();
     let cb = cb.for_send();
-    let rendered_request = render_http_request(
-        &request,
-        &workspace,
-        environment.as_ref(),
-        &cb,
-    )
-    .await;
+    let rendered_request =
+        render_http_request(&request, &workspace, environment.as_ref(), &cb).await;
 
     let mut url_string = rendered_request.url;
 
@@ -101,6 +96,23 @@ pub async fn send_http_request<R: Runtime>(
 
     let client = client_builder.build().expect("Failed to build client");
 
+    // Render query parameters
+    let mut query_params = Vec::new();
+    for p in rendered_request.url_parameters {
+        if !p.enabled || p.name.is_empty() {
+            continue;
+        }
+
+        // Replace path parameters with values from URL parameters
+        let old_url_string = url_string.clone();
+        url_string = replace_path_placeholder(&p, url_string.as_str());
+
+        // Treat as regular param if wasn't used as path param
+        if old_url_string == url_string {
+            query_params.push((p.name, p.value));
+        }
+    }
+
     let uri = match http::Uri::from_str(url_string.as_str()) {
         Ok(u) => u,
         Err(e) => {
@@ -127,7 +139,7 @@ pub async fn send_http_request<R: Runtime>(
 
     let m = Method::from_bytes(rendered_request.method.to_uppercase().as_bytes())
         .expect("Failed to create method");
-    let mut request_builder = client.request(m, url);
+    let mut request_builder = client.request(m, url).query(&query_params);
 
     let mut headers = HeaderMap::new();
     headers.insert(USER_AGENT, HeaderValue::from_static("yaak"));
@@ -210,15 +222,6 @@ pub async fn send_http_request<R: Runtime>(
         }
     }
 
-    let mut query_params = Vec::new();
-    for p in rendered_request.url_parameters {
-        if !p.enabled || p.name.is_empty() {
-            continue;
-        }
-        query_params.push((p.name, p.value));
-    }
-    request_builder = request_builder.query(&query_params);
-
     let request_body = rendered_request.body;
     if let Some(body_type) = &rendered_request.body_type {
         if request_body.contains_key("text") {
@@ -489,3 +492,119 @@ fn get_str_h<'a>(v: &'a HashMap<String, Value>, key: &str) -> &'a str {
         Some(v) => v.as_str().unwrap_or_default(),
     }
 }
+
+fn replace_path_placeholder(p: &HttpUrlParameter, url: &str) -> String {
+    if !p.enabled {
+        return url.to_string();
+    }
+
+    let re = regex::Regex::new(format!("(/){}([/?#]|$)", p.name).as_str()).unwrap();
+    let result = re
+        .replace_all(url, |cap: &regex::Captures| {
+            format!(
+                "{}{}{}",
+                cap[1].to_string(),
+                urlencoding::encode(p.value.as_str()),
+                cap[2].to_string()
+            )
+        })
+        .into_owned();
+    result
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::http_request::replace_path_placeholder;
+    use yaak_models::models::HttpUrlParameter;
+
+    #[test]
+    fn placeholder_middle() {
+        let p = HttpUrlParameter {
+            name: ":foo".into(),
+            value: "xxx".into(),
+            enabled: true,
+        };
+        assert_eq!(
+            replace_path_placeholder(&p, "https://example.com/:foo/bar"),
+            "https://example.com/xxx/bar",
+        );
+    }
+
+    #[test]
+    fn placeholder_end() {
+        let p = HttpUrlParameter {
+            name: ":foo".into(),
+            value: "xxx".into(),
+            enabled: true,
+        };
+        assert_eq!(
+            replace_path_placeholder(&p, "https://example.com/:foo"),
+            "https://example.com/xxx",
+        );
+    }
+
+    #[test]
+    fn placeholder_query() {
+        let p = HttpUrlParameter {
+            name: ":foo".into(),
+            value: "xxx".into(),
+            enabled: true,
+        };
+        assert_eq!(
+            replace_path_placeholder(&p, "https://example.com/:foo?:foo"),
+            "https://example.com/xxx?:foo",
+        );
+    }
+
+    #[test]
+    fn placeholder_missing() {
+        let p = HttpUrlParameter {
+            enabled: true,
+            name: "".to_string(),
+            value: "".to_string(),
+        };
+        assert_eq!(
+            replace_path_placeholder(&p, "https://example.com/:missing"),
+            "https://example.com/:missing",
+        );
+    }
+
+    #[test]
+    fn placeholder_disabled() {
+        let p = HttpUrlParameter {
+            enabled: false,
+            name: ":foo".to_string(),
+            value: "xxx".to_string(),
+        };
+        assert_eq!(
+            replace_path_placeholder(&p, "https://example.com/:foo"),
+            "https://example.com/:foo",
+        );
+    }
+
+    #[test]
+    fn placeholder_prefix() {
+        let p = HttpUrlParameter {
+            name: ":foo".into(),
+            value: "xxx".into(),
+            enabled: true,
+        };
+        assert_eq!(
+            replace_path_placeholder(&p, "https://example.com/:foooo"),
+            "https://example.com/:foooo",
+        );
+    }
+
+    #[test]
+    fn placeholder_encode() {
+        let p = HttpUrlParameter {
+            name: ":foo".into(),
+            value: "Hello World".into(),
+            enabled: true,
+        };
+        assert_eq!(
+            replace_path_placeholder(&p, "https://example.com/:foo"),
+            "https://example.com/Hello%20World",
+        );
+    }
+}
diff --git a/src-web/components/RequestPane.tsx b/src-web/components/RequestPane.tsx
index ac5c83aa..5a00c5e3 100644
--- a/src-web/components/RequestPane.tsx
+++ b/src-web/components/RequestPane.tsx
@@ -344,6 +344,7 @@ export const RequestPane = memo(function RequestPane({
               <UrlParametersEditor
                 forceUpdateKey={forceUpdateKey}
                 urlParameters={activeRequest.urlParameters}
+                url={activeRequest.url}
                 onChange={handleUrlParametersChange}
               />
             </TabContent>
diff --git a/src-web/components/UrlParameterEditor.tsx b/src-web/components/UrlParameterEditor.tsx
index cdfba446..5588d7d4 100644
--- a/src-web/components/UrlParameterEditor.tsx
+++ b/src-web/components/UrlParameterEditor.tsx
@@ -1,23 +1,49 @@
 import type { HttpRequest } from '@yaakapp/api';
+import { useMemo } from 'react';
+import type { Pair } from './core/PairEditor';
 import { PairOrBulkEditor } from './core/PairOrBulkEditor';
+import { VStack } from './core/Stacks';
 
 type Props = {
   forceUpdateKey: string;
   urlParameters: HttpRequest['headers'];
   onChange: (headers: HttpRequest['urlParameters']) => void;
+  url: string;
 };
 
-export function UrlParametersEditor({ urlParameters, forceUpdateKey, onChange }: Props) {
+export function UrlParametersEditor({ urlParameters, forceUpdateKey, onChange, url }: Props) {
+  const placeholderNames = Array.from(url.matchAll(/\/(:[^/]+)/g)).map((m) => m[1] ?? '');
+
+  const pairs = useMemo(() => {
+    const items: Pair[] = [...urlParameters];
+    for (const name of placeholderNames) {
+      const index = items.findIndex((p) => p.name === name);
+      if (index >= 0) {
+        items[index]!.readOnlyName = true;
+      } else {
+        items.push({
+          name,
+          value: '',
+          enabled: true,
+          readOnlyName: true,
+        });
+      }
+    }
+    return items;
+  }, [placeholderNames, urlParameters]);
+
   return (
-    <PairOrBulkEditor
-      preferenceName="url_parameters"
-      valueAutocompleteVariables
-      nameAutocompleteVariables
-      namePlaceholder="param_name"
-      valuePlaceholder="Value"
-      pairs={urlParameters}
-      onChange={onChange}
-      forceUpdateKey={forceUpdateKey}
-    />
+    <VStack className="h-full">
+      <PairOrBulkEditor
+        preferenceName="url_parameters"
+        valueAutocompleteVariables
+        nameAutocompleteVariables
+        namePlaceholder="param_name"
+        valuePlaceholder="Value"
+        pairs={pairs}
+        onChange={onChange}
+        forceUpdateKey={forceUpdateKey + placeholderNames.join(':')}
+      />
+    </VStack>
   );
 }
diff --git a/src-web/components/core/BulkPairEditor.tsx b/src-web/components/core/BulkPairEditor.tsx
index 738b0bf8..3b428a74 100644
--- a/src-web/components/core/BulkPairEditor.tsx
+++ b/src-web/components/core/BulkPairEditor.tsx
@@ -42,12 +42,13 @@ export function BulkPairEditor({
   );
 }
 
-function lineToPair(l: string): PairEditorProps['pairs'][0] {
-  const [name, ...values] = l.split(':');
+function lineToPair(line: string): PairEditorProps['pairs'][0] {
+  const [, name, value] = line.match(/^(:?[^:]+):\s+([^$]*)/) ?? [];
+
   const pair: PairEditorProps['pairs'][0] = {
     enabled: true,
     name: (name ?? '').trim(),
-    value: values.join(':').trim(),
+    value: (value ?? '').trim(),
   };
   return pair;
 }
diff --git a/src-web/components/core/Editor/Editor.css b/src-web/components/core/Editor/Editor.css
index 365ff6d6..280d8d3e 100644
--- a/src-web/components/core/Editor/Editor.css
+++ b/src-web/components/core/Editor/Editor.css
@@ -19,7 +19,8 @@
     }
 
     .cm-line {
-      @apply w-full; /* Important! Ensure it spans the entire width */
+      @apply w-full;
+      /* Important! Ensure it spans the entire width */
       @apply w-full text-text pl-1 pr-1.5;
     }
 
@@ -169,9 +170,14 @@
   }
 }
 
-.cm-wrapper.cm-readonly .cm-editor {
-  .cm-cursor {
-    @apply border-danger !important;
+/* Cursor and mouse cursor for readonly mode */
+.cm-wrapper.cm-readonly {
+  .cm-editor .cm-cursor {
+    @apply hidden !important;
+  }
+
+  &.cm-singleline .cm-line {
+    @apply cursor-default;
   }
 }
 
diff --git a/src-web/components/core/Editor/Editor.tsx b/src-web/components/core/Editor/Editor.tsx
index 4c14729e..41aabcb8 100644
--- a/src-web/components/core/Editor/Editor.tsx
+++ b/src-web/components/core/Editor/Editor.tsx
@@ -39,6 +39,7 @@ export { formatSdl } from 'format-graphql';
 export interface EditorProps {
   id?: string;
   readOnly?: boolean;
+  disabled?: boolean;
   type?: 'text' | 'password';
   className?: string;
   heightMode?: 'auto' | 'full';
diff --git a/src-web/components/core/Editor/extensions.ts b/src-web/components/core/Editor/extensions.ts
index 6f215c02..0325ac4b 100644
--- a/src-web/components/core/Editor/extensions.ts
+++ b/src-web/components/core/Editor/extensions.ts
@@ -46,6 +46,10 @@ export const syntaxHighlightStyle = HighlightStyle.define([
     color: 'var(--textSubtlest)',
     fontStyle: 'italic',
   },
+  {
+    tag: [t.emphasis],
+    textDecoration: 'underline',
+  },
   {
     tag: [t.paren, t.bracket, t.brace],
     color: 'var(--textSubtle)',
diff --git a/src-web/components/core/Editor/pairs/pairs.grammar b/src-web/components/core/Editor/pairs/pairs.grammar
index a776dedb..ec060c0c 100644
--- a/src-web/components/core/Editor/pairs/pairs.grammar
+++ b/src-web/components/core/Editor/pairs/pairs.grammar
@@ -1,8 +1,8 @@
-@top pairs { (Key? Sep Value)* }
+@top pairs { (Key Sep Value "\n")* }
 
 @tokens {
   Sep { ":" }
-  Key { ![:]+ }
+  Key { ":"? ![:]+ }
   Value { ![\n]+ }
 }
 
diff --git a/src-web/components/core/Editor/pairs/pairs.terms.ts b/src-web/components/core/Editor/pairs/pairs.terms.ts
new file mode 100644
index 00000000..702786df
--- /dev/null
+++ b/src-web/components/core/Editor/pairs/pairs.terms.ts
@@ -0,0 +1,6 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+export const
+  pairs = 1,
+  Key = 2,
+  Sep = 3,
+  Value = 4
diff --git a/src-web/components/core/Editor/pairs/pairs.ts b/src-web/components/core/Editor/pairs/pairs.ts
index fca38f4f..098f4567 100644
--- a/src-web/components/core/Editor/pairs/pairs.ts
+++ b/src-web/components/core/Editor/pairs/pairs.ts
@@ -3,17 +3,17 @@ import {LRParser} from "@lezer/lr"
 import {highlight} from "./highlight"
 export const parser = LRParser.deserialize({
   version: 14,
-  states: "!QQQOPOOOYOQO'#CaO_OPO'#CaQQOPOOOOOO,58{,58{OdOQO,58{OOOO-E6_-E6_OOOO1G.g1G.g",
-  stateData: "i~OQQORPO~OSSO~ORTO~OSVO~O",
-  goto: "]UPPPPPVQRORUR",
+  states: "zQQOPOOOVOQO'#CaQQOPOOO[OSO,58{OOOO-E6_-E6_OaOQO1G.gOOOO7+$R7+$R",
+  stateData: "f~OQPO~ORRO~OSTO~OVUO~O",
+  goto: "]UPPPPPVQQORSQ",
   nodeNames: "⚠ pairs Key Sep Value",
-  maxTerm: 6,
+  maxTerm: 7,
   propSources: [highlight],
   skippedNodes: [0],
   repeatNodeCount: 1,
-  tokenData: "#oRRVOYhYZ!UZ![h![!]#[!];'Sh;'S;=`#U<%lOhRoVQPSQOYhYZ!UZ![h![!]!m!];'Sh;'S;=`#U<%lOhP!ZSQPO![!U!];'S!U;'S;=`!g<%lO!UP!jP;=`<%l!UQ!rSSQOY!mZ;'S!m;'S;=`#O<%lO!mQ#RP;=`<%l!mR#XP;=`<%lhR#cSRPSQOY!mZ;'S!m;'S;=`#O<%lO!m",
-  tokenizers: [0, 1],
+  tokenData: "$]VRVOYhYZ#[Z![h![!]#o!];'Sh;'S;=`#U<%lOhToVQPSSOYhYZ!UZ![h![!]!m!];'Sh;'S;=`#U<%lOhP!ZSQPO![!U!];'S!U;'S;=`!g<%lO!UP!jP;=`<%l!US!rSSSOY!mZ;'S!m;'S;=`#O<%lO!mS#RP;=`<%l!mT#XP;=`<%lhR#cSVQQPO![!U!];'S!U;'S;=`!g<%lO!UV#vVRQSSOYhYZ!UZ![h![!]!m!];'Sh;'S;=`#U<%lOh",
+  tokenizers: [0, 1, 2],
   topRules: {"pairs":[0,1]},
-  tokenPrec: 0
+  tokenPrec: 0,
+  termNames: {"0":"⚠","1":"@top","2":"Key","3":"Sep","4":"Value","5":"(Key Sep Value \"\\n\")+","6":"␄","7":"\"\\n\""}
 })
-
diff --git a/src-web/components/core/Editor/twig/twig.terms.ts b/src-web/components/core/Editor/twig/twig.terms.ts
index cb65aeea..d6bda1a3 100644
--- a/src-web/components/core/Editor/twig/twig.terms.ts
+++ b/src-web/components/core/Editor/twig/twig.terms.ts
@@ -1,7 +1,8 @@
 // This file was generated by lezer-generator. You probably shouldn't edit it.
-export const Template = 1,
+export const
+  Template = 1,
   Tag = 2,
+  TagOpen = 3,
   TagContent = 4,
-  Open = 3,
-  Close = 5,
-  Text = 6;
+  TagClose = 5,
+  Text = 6
diff --git a/src-web/components/core/Editor/twig/twig.ts b/src-web/components/core/Editor/twig/twig.ts
index f51bbc3b..04452432 100644
--- a/src-web/components/core/Editor/twig/twig.ts
+++ b/src-web/components/core/Editor/twig/twig.ts
@@ -16,4 +16,3 @@ export const parser = LRParser.deserialize({
   topRules: {"Template":[0,1]},
   tokenPrec: 0
 })
-
diff --git a/src-web/components/core/Editor/url/highlight.ts b/src-web/components/core/Editor/url/highlight.ts
index 03fcd72c..e908323f 100644
--- a/src-web/components/core/Editor/url/highlight.ts
+++ b/src-web/components/core/Editor/url/highlight.ts
@@ -2,6 +2,8 @@ import { styleTags, tags as t } from '@lezer/highlight';
 
 export const highlight = styleTags({
   Protocol: t.comment,
+  Placeholder: t.emphasis,
+  // PathSegment: t.tagName,
   // Port: t.attributeName,
   // Host: t.variableName,
   // Path: t.bool,
diff --git a/src-web/components/core/Editor/url/url.grammar b/src-web/components/core/Editor/url/url.grammar
index aa2685cd..cb81cd73 100644
--- a/src-web/components/core/Editor/url/url.grammar
+++ b/src-web/components/core/Editor/url/url.grammar
@@ -1,18 +1,22 @@
-@top url { Protocol? Host Port? Path? Query? }
+@top Program { url }
 
-Query {
-    "?" queryPair ("&" queryPair)*
-}
+url { Protocol? Host Port? Path? Query? }
+
+Path { ("/" (Placeholder | PathSegment))+ }
+
+Query { "?" queryPair ("&" queryPair)* }
 
 @tokens {
   Protocol { $[a-zA-Z]+ "://" }
-  Path { ("/" $[a-zA-Z0-9\-_.]*)+ }
-  queryPair { ($[a-zA-Z0-9]+ ("=" $[a-zA-Z0-9]*)?) }
-  Port { ":" $[0-9]+ }
   Host { $[a-zA-Z0-9-_.]+ }
+  Port { ":" $[0-9]+ }
+  Placeholder { ":" ![/?#]+ }
+  PathSegment { ![?#/]+ }
+  queryPair { ($[a-zA-Z0-9]+ ("=" $[a-zA-Z0-9]*)?) }
 
   // Protocol/host overlaps, so give proto explicit precedence
   @precedence { Protocol, Host }
+  @precedence { Placeholder, PathSegment }
 }
 
 @external propSource highlight from "./highlight"
diff --git a/src-web/components/core/Editor/url/url.terms.ts b/src-web/components/core/Editor/url/url.terms.ts
index 39a59ed2..82a226dc 100644
--- a/src-web/components/core/Editor/url/url.terms.ts
+++ b/src-web/components/core/Editor/url/url.terms.ts
@@ -1,8 +1,10 @@
 // This file was generated by lezer-generator. You probably shouldn't edit it.
 export const
-  url = 1,
+  Program = 1,
   Protocol = 2,
   Host = 3,
   Port = 4,
   Path = 5,
-  Query = 6
+  Placeholder = 6,
+  PathSegment = 7,
+  Query = 8
diff --git a/src-web/components/core/Editor/url/url.ts b/src-web/components/core/Editor/url/url.ts
index 48df68ad..c1c3c351 100644
--- a/src-web/components/core/Editor/url/url.ts
+++ b/src-web/components/core/Editor/url/url.ts
@@ -3,16 +3,17 @@ import {LRParser} from "@lezer/lr"
 import {highlight} from "./highlight"
 export const parser = LRParser.deserialize({
   version: 14,
-  states: "!jOQOPOOQYOPOOOTOPOOOeOQO'#CbQOOOOOQ`OPOOQ]OPOOOjOPO,58|OrOQO'#CcOwOPO1G.hOOOO,58},58}OOOO-E6a-E6a",
-  stateData: "!S~OQQORPO~OSUOTTOXRO~OYVO~OZWOWUa~OYYO~OZWOWUi~OQR~",
-  goto: "dWPPPPPPX^VSPTUQXVRZX",
-  nodeNames: "⚠ url Protocol Host Port Path Query",
-  maxTerm: 11,
+  states: "$UOQOPOOOYOPO'#ChOhOPO'#ChQOOOOOOmOQO'#CeOuOPO'#CaO!QOSO'#CdOOOO,59S,59SO!VOPO,59SO!_OPO,59SO!jOPO,59SOOOO,59P,59POOOO-E6c-E6cO!xOPO,59OOOOO1G.n1G.nO#QOPO1G.nO#YOPO1G.nO#eOSO'#CfO#jOPO1G.jOOOO7+$Y7+$YO#rOPO7+$YOOOO,59Q,59QOOOO-E6d-E6dOOOO<<Gt<<Gt",
+  stateData: "$Q~OQQORPO~OSXO]SO^UOZ[X~ORYO~OUZOVZO~O]SOZTX^TX~O_]O~O^UOZ[a~O]SO^UOZ[a~OS`O]SO^UOZ[a~O`aOZWa~O^UOZ[i~O]SO^UOZ[i~O_eO~O`aOZWi~O^UOZ[q~OQRUVU~",
+  goto: "!Z]PPPPP^PPhw!QP!WQWPS_XYRd`QVPU^WXYSc_`RgdWTPXY`R[TQb]RfbRRO",
+  nodeNames: "⚠ Program Protocol Host Port Path Placeholder PathSegment Query",
+  maxTerm: 16,
   propSources: [highlight],
   skippedNodes: [0],
-  repeatNodeCount: 1,
-  tokenData: "%[~RYvwq}!Ov!O!Pv!P!Q!_!Q![!y![!]#u!a!b$T!c!}$Y#R#Sv#T#o$Y~vOZ~P{URP}!Ov!O!Pv!Q![v!c!}v#R#Sv#T#ov~!dVT~}!O!_!O!P!_!P!Q!_!Q![!_!c!}!_#R#S!_#T#o!_R#QVYQRP}!Ov!O!Pv!Q![!y!_!`#g!c!}!y#R#Sv#T#o!yQ#lRYQ!Q![#g!c!}#g#T#o#g~#xP!Q![#{~$QPS~!Q![#{~$YOX~R$aWYQRP}!Ov!O!Pv!Q![!y![!]$y!_!`#g!c!}$Y#R#Sv#T#o$YP$|P!P!Q%PP%SP!P!Q%VP%[OQP",
-  tokenizers: [0, 1],
-  topRules: {"url":[0,1]},
-  tokenPrec: 47
+  repeatNodeCount: 2,
+  tokenData: "+h~RdOs!atv!avw#Ow}!a}!O#i!O!P#i!P!Q$o!Q![$t![!]&|!]!a!a!a!b)Z!b!c!a!c!})`!}#R!a#R#S#i#S#T!a#T#o)`#o;'S!a;'S;=`!x<%lO!aQ!fUVQOs!at!P!a!Q!a!a!b;'S!a;'S;=`!x<%lO!aQ!{P;=`<%l!aR#VU`PVQOs!at!P!a!Q!a!a!b;'S!a;'S;=`!x<%lO!aR#p_RPVQOs!at}!a}!O#i!O!P#i!Q![#i![!a!a!b!c!a!c!}#i!}#R!a#R#S#i#S#T!a#T#o#i#o;'S!a;'S;=`!x<%lO!a~$tO]~V$}a_SRPVQOs!at}!a}!O#i!O!P#i!Q![$t![!_!a!_!`&S!`!a!a!b!c!a!c!}$t!}#R!a#R#S#i#S#T!a#T#o$t#o;'S!a;'S;=`!x<%lO!aU&ZZ_SVQOs!at!P!a!Q![&S![!a!a!b!c!a!c!}&S!}#T!a#T#o&S#o;'S!a;'S;=`!x<%lO!aR'RXVQOs'ntv'nvw!aw!P'n!Q![(e![!a'n!b;'S'n;'S;=`(_<%lO'nQ'uWUQVQOs'ntv'nvw!aw!P'n!Q!a'n!b;'S'n;'S;=`(_<%lO'nQ(bP;=`<%l'nR(nXSPUQVQOs'ntv'nvw!aw!P'n!Q![(e![!a'n!b;'S'n;'S;=`(_<%lO'n~)`O^~V)ib_SRPVQOs!at}!a}!O#i!O!P#i!Q![$t![!]*q!]!_!a!_!`&S!`!a!a!b!c!a!c!})`!}#R!a#R#S#i#S#T!a#T#o)`#o;'S!a;'S;=`!x<%lO!aR*vVVQOs!at!P!a!P!Q+]!Q!a!a!b;'S!a;'S;=`!x<%lO!aP+`P!P!Q+cP+hOQP",
+  tokenizers: [0, 1, 2],
+  topRules: {"Program":[0,1]},
+  tokenPrec: 134,
+  termNames: {"0":"⚠","1":"@top","2":"Protocol","3":"Host","4":"Port","5":"Path","6":"Placeholder","7":"PathSegment","8":"Query","9":"(\"/\" (Placeholder | PathSegment))+","10":"(\"&\" queryPair)+","11":"␄","12":"url","13":"\"/\"","14":"\"?\"","15":"queryPair","16":"\"&\""}
 })
diff --git a/src-web/components/core/Input.tsx b/src-web/components/core/Input.tsx
index 62034ce7..06cdc923 100644
--- a/src-web/components/core/Input.tsx
+++ b/src-web/components/core/Input.tsx
@@ -22,6 +22,7 @@ export type InputProps = Omit<
     | 'autoSelect'
     | 'autocompleteVariables'
     | 'onKeyDown'
+    | 'readOnly'
   > & {
     name: string;
     type?: 'text' | 'password';
@@ -68,6 +69,7 @@ export const Input = forwardRef<EditorView | undefined, InputProps>(function Inp
     size = 'md',
     type = 'text',
     validate,
+    readOnly,
     ...props
   }: InputProps,
   ref,
@@ -77,9 +79,10 @@ export const Input = forwardRef<EditorView | undefined, InputProps>(function Inp
   const [focused, setFocused] = useState(false);
 
   const handleFocus = useCallback(() => {
+    if (readOnly) return;
     setFocused(true);
     onFocus?.();
-  }, [onFocus]);
+  }, [onFocus, readOnly]);
 
   const handleBlur = useCallback(() => {
     setFocused(false);
@@ -179,6 +182,7 @@ export const Input = forwardRef<EditorView | undefined, InputProps>(function Inp
             className={editorClassName}
             onFocus={handleFocus}
             onBlur={handleBlur}
+            readOnly={readOnly}
             {...props}
           />
         </HStack>
diff --git a/src-web/components/core/PairEditor.tsx b/src-web/components/core/PairEditor.tsx
index ac7e30c2..91a29aff 100644
--- a/src-web/components/core/PairEditor.tsx
+++ b/src-web/components/core/PairEditor.tsx
@@ -41,6 +41,7 @@ export type Pair = {
   value: string;
   contentType?: string;
   isFile?: boolean;
+  readOnlyName?: boolean;
 };
 
 type PairContainer = {
@@ -254,8 +255,8 @@ function PairEditorRow({
   valueAutocomplete,
   valueAutocompleteVariables,
   valuePlaceholder,
-  valueValidate,
   valueType,
+  valueValidate,
 }: PairEditorRowProps) {
   const { id } = pairContainer;
   const ref = useRef<HTMLDivElement>(null);
@@ -374,6 +375,7 @@ function PairEditorRow({
           ref={nameInputRef}
           hideLabel
           useTemplating
+          readOnly={pairContainer.pair.readOnlyName}
           size="sm"
           require={!isLast && !!pairContainer.pair.enabled && !!pairContainer.pair.value}
           validate={nameValidate}
@@ -476,7 +478,14 @@ function PairEditorRow({
         </RadioDropdown>
       ) : (
         <Dropdown
-          items={[{ key: 'delete', label: 'Delete', onSelect: handleDelete, variant: 'danger' }]}
+          items={[
+            {
+              key: 'delete',
+              label: 'Delete',
+              onSelect: handleDelete,
+              variant: 'danger',
+            },
+          ]}
         >
           <IconButton
             iconSize="sm"