diff --git a/platform-gitops/services/labs/openclaw/values.yaml b/platform-gitops/services/labs/openclaw/values.yaml
index 527eabf2c..d02783251 100644
--- a/platform-gitops/services/labs/openclaw/values.yaml
+++ b/platform-gitops/services/labs/openclaw/values.yaml
@@ -101,6 +101,11 @@ envFrom:
   # the fallback is a node bridge script that reads process.env directly.
   - secretRef:
       name: labs-openclaw-coinglass
+  # TRADING_DATA_TOKEN — bearer for the labs-trading-data MCP service
+  # (Bybit/Bitget WS taker + CryptoPanic/Etherscan REST). Read from
+  # process.env by /scripts/trading-data-mcp-proxy.js below.
+  - secretRef:
+      name: labs-trading-data-client
 initContainers:
   # 1. Restore state from MinIO (no-op for new tenants, preserves OAuth credentials on restart)
   - name: restore-state
@@ -738,6 +743,17 @@ extraExternalSecrets:
       - secretKey: COINGLASS_API_KEY
         remoteKey: secret/data/teams/labs/openclaw/coinglass
         property: api_key
+  # Bearer for the in-cluster labs-trading-data MCP service. Same Vault path
+  # is consumed server-side by services/labs/trading-data/values.yaml — the
+  # two ExternalSecrets read the same `bearer_token` field so client and
+  # server agree on the token without manual rotation across two repos.
+  labs-trading-data-client:
+    refreshInterval: 1h
+    targetSecret: labs-trading-data-client
+    data:
+      - secretKey: TRADING_DATA_TOKEN
+        remoteKey: secret/data/teams/labs/trading-data/client-token
+        property: bearer_token
 configMaps:
   openclaw-scripts:
     mcp-agent-proxy.js: |-
@@ -1055,6 +1071,122 @@ configMaps:
           errorReply(err && err.message ? err.message : err);
         }
       }
+    # stdio -> HTTP+Bearer bridge for the in-cluster labs-trading-data MCP
+    # service. The claude-cli backend's `bundle-mcp` step accepts only stdio
+    # MCP servers (it silently skips streamable-HTTP / SSE), so this
+    # ~40-line proxy converts stdio JSON-RPC into Bearer-auth POSTs against
+    # the FastAPI streamable-HTTP endpoint. The trading-data service is
+    # stateless from the client side (no session-id, no protocol-version
+    # exchange beyond initialize) so this bridge is much simpler than the
+    # coinglass one — no auth refresh, no SSE re-framing, no env-var header
+    # interpolation. URL + token come from process.env (envFrom ->
+    # labs-trading-data-client + openclaw.json env passthrough below).
+    trading-data-mcp-proxy.js: |-
+      #!/usr/bin/env node
+      const url = process.env.TRADING_DATA_URL;
+      const token = process.env.TRADING_DATA_TOKEN;
+      let queue = Promise.resolve();
+      process.stdin.setEncoding('utf8');
+      let buf = '';
+      process.stdin.on('data', chunk => {
+        buf += chunk;
+        let nl;
+        while ((nl = buf.indexOf('\n')) !== -1) {
+          const line = buf.slice(0, nl).trim();
+          buf = buf.slice(nl + 1);
+          if (line) queue = queue.then(() => handle(line)).catch(() => {});
+        }
+      });
+      function writeLine(obj) { process.stdout.write(JSON.stringify(obj) + '\n'); }
+      function isNotification(req) {
+        // JSON-RPC 2.0: a notification is a request object with no `id`
+        // member at all (e.g. `notifications/initialized`). It expects no
+        // response. We must NOT emit unsolicited error frames for these
+        // -- a stdio MCP client tracking ids would treat them as orphan
+        // replies (codex P2 round 2 on PR #137).
+        return !req || !Object.prototype.hasOwnProperty.call(req, 'id');
+      }
+      function rpcError(req, message) {
+        if (isNotification(req)) return;
+        writeLine({ jsonrpc: '2.0', id: req.id, error: { code: -32603, message: String(message) } });
+      }
+      // Parse a streamable-HTTP / SSE body into the JSON payloads of each
+      // event block. SSE allows one event to span multiple `data:` lines
+      // that the spec requires concatenating with `\n` before parsing;
+      // splitting per-line and JSON.parsing each fragment incorrectly
+      // discards every multi-line event (codex P2 round 2 on PR #137).
+      // Event blocks are separated by blank lines (one or more CRLF/LF).
+      function parseSseEvents(text) {
+        const out = [];
+        for (const block of text.split(/\r?\n\r?\n/)) {
+          if (!block.trim()) continue;
+          const dataLines = [];
+          for (const raw of block.split(/\r?\n/)) {
+            // Per spec: a leading single SP after the colon is part of
+            // formatting, not data. Strip exactly one leading space.
+            if (!raw.startsWith('data:')) continue;
+            const value = raw.slice(5);
+            dataLines.push(value.startsWith(' ') ? value.slice(1) : value);
+          }
+          if (!dataLines.length) continue;
+          const payload = dataLines.join('\n');
+          if (!payload.trim()) continue;
+          try { JSON.parse(payload); } catch (_) { continue; }
+          out.push(payload);
+        }
+        return out;
+      }
+      async function handle(line) {
+        let req;
+        try { req = JSON.parse(line); } catch (_) { return; }
+        if (!url || !token) {
+          rpcError(req, 'trading-data proxy not configured (TRADING_DATA_URL/TOKEN missing)');
+          return;
+        }
+        try {
+          const res = await fetch(url, {
+            method: 'POST',
+            headers: {
+              'Content-Type': 'application/json',
+              'Accept': 'application/json, text/event-stream',
+              'Authorization': `Bearer ${token}`,
+            },
+            body: line,
+          });
+          const text = await res.text();
+          const contentType = (res.headers.get('content-type') || '').toLowerCase();
+          if (contentType.includes('text/event-stream')) {
+            const payloads = parseSseEvents(text);
+            for (const p of payloads) process.stdout.write(p + '\n');
+            if (payloads.length === 0) {
+              rpcError(req, `trading-data returned no parseable SSE payload (status ${res.status})`);
+            }
+            return;
+          }
+          // Non-SSE: validate that the body is a non-empty JSON document
+          // before passing through. Empty bodies, gateway HTML error
+          // pages, or upstream timeouts must surface as structured
+          // JSON-RPC errors so the agent retries cleanly instead of
+          // hitting a stdio framing exception (codex P2 round 1).
+          if (!text.trim()) {
+            // 202 Accepted with no body is the canonical reply to a
+            // notification. Skip silently in that case.
+            if (!isNotification(req)) {
+              rpcError(req, `trading-data returned empty body (status ${res.status})`);
+            }
+            return;
+          }
+          let parsed;
+          try { parsed = JSON.parse(text); } catch (_) {
+            const preview = text.length > 80 ? text.slice(0, 80) + '...' : text;
+            rpcError(req, `trading-data returned non-JSON body (status ${res.status}, content-type=${contentType || 'unknown'}, body=${preview})`);
+            return;
+          }
+          process.stdout.write(JSON.stringify(parsed) + '\n');
+        } catch (err) {
+          rpcError(req, err && err.message ? err.message : err);
+        }
+      }
     github-pr-mcp.js: |-
       #!/usr/bin/env node
       const { Buffer } = require('buffer');
@@ -1402,6 +1534,13 @@ configMaps:
               "env": {
                 "COINGLASS_API_KEY": "__COINGLASS_API_KEY__"
               }
+            },
+            "trading-data": {
+              "command": "node",
+              "args": ["/scripts/trading-data-mcp-proxy.js"],
+              "env": {
+                "TRADING_DATA_URL": "http://labs-trading-data.labs.svc.cluster.local:8080/mcp"
+              }
             }
           }
         }
diff --git a/platform-gitops/services/labs/trading-data/catalog-info.yaml b/platform-gitops/services/labs/trading-data/catalog-info.yaml
new file mode 100644
index 000000000..527475309
--- /dev/null
+++ b/platform-gitops/services/labs/trading-data/catalog-info.yaml
@@ -0,0 +1,30 @@
+apiVersion: backstage.io/v1alpha1
+kind: Component
+metadata:
+  name: trading-data
+  namespace: labs
+  description: "Bybit + Bitget WS taker aggregation + CryptoPanic + Etherscan MCP service for labs-openclaw"
+  annotations:
+    backstage.io/kubernetes-label-selector: app.kubernetes.io/instance=labs-trading-data
+    backstage.io/kubernetes-id: trading-data
+    backstage.io/kubernetes-namespace: labs
+    argocd/app-name: labs-trading-data
+    github.com/source-repo: mctlhq/mctl-trading-data
+    # Auto-deploy disabled — image bumps land via manual mctl_deploy_service
+    # so the operator can stage Vault changes for new tools alongside.
+    mctl.me/auto-deploy: "false"
+  links:
+    - url: https://ops.mctl.ai/applications/argocd/labs-trading-data
+      title: ArgoCD
+      icon: dashboard
+    - url: https://github.com/mctlhq/mctl-trading-data
+      title: Source Repository
+      icon: github
+  labels:
+    team: labs
+    env: apps
+spec:
+  type: service
+  lifecycle: production
+  owner: group:default/labs
+  system: system:default/team-labs
diff --git a/platform-gitops/services/labs/trading-data/values.yaml b/platform-gitops/services/labs/trading-data/values.yaml
new file mode 100644
index 000000000..37e4f6aa7
--- /dev/null
+++ b/platform-gitops/services/labs/trading-data/values.yaml
@@ -0,0 +1,141 @@
+# Service: trading-data
+# Team:    labs
+# Chart:   base-service
+#
+# Stateful WebSocket service that aggregates Bybit V5 + Bitget V2 public-trade
+# streams into rolling 24h taker buckets and exposes them — alongside
+# CryptoPanic news + Etherscan gas/whale REST helpers — as MCP tools over
+# streamable-HTTP with Bearer auth. Consumed by labs-openclaw via the
+# `trading-data-mcp-proxy.js` stdio bridge declared in the openclaw chart.
+#
+# replicaCount=1 is a HARD INVARIANT — buckets live in process memory.
+# Scaling > 1 requires WS leader election + Redis-backed buckets first.
+
+image:
+  repository: ghcr.io/mctlhq/mctl-trading-data
+  tag: "0.2.0"
+imagePullSecrets:
+  - name: ghcr-credentials
+service:
+  port: 8080
+backstage:
+  kubernetesId: trading-data
+replicaCount: 1
+autoscaling:
+  enabled: false
+resources:
+  requests:
+    cpu: 200m
+    memory: 384Mi
+  limits:
+    cpu: 1000m
+    memory: 768Mi
+env:
+  APP_ENV: production
+  LOG_LEVEL: info
+  WATCH_SYMBOLS: "ETHUSDT"
+envFrom:
+  # CryptoCompare News + Etherscan free-tier API keys; sourced from Vault at
+  # secret/data/teams/labs/trading-data/{cryptocompare,etherscan}. CryptoPanic
+  # was the original choice but its free tier was discontinued April 2026 —
+  # CryptoCompare News v2 (Apikey header auth, ~100K calls/month free) is
+  # the drop-in replacement that mctl-trading-data 0.2.0 ships against.
+  - secretRef:
+      name: labs-trading-data-upstream
+  # TRADING_DATA_TOKEN — server-side bearer; same secret value also lands in
+  # labs-openclaw via the matching client-side ExternalSecret in that chart.
+  - secretRef:
+      name: labs-trading-data-server
+probes:
+  liveness:
+    path: /healthz
+    port: http
+    initialDelaySeconds: 60
+    periodSeconds: 30
+  readiness:
+    path: /readyz
+    port: http
+    initialDelaySeconds: 30
+    periodSeconds: 10
+ingress:
+  enabled: false
+extraObjects:
+  # Pod-to-pod only — no ingress controller, no inter-tenant traffic.
+  # Egress is restricted to public internet (443) + cluster DNS (kube-system).
+  - apiVersion: networking.k8s.io/v1
+    kind: NetworkPolicy
+    metadata:
+      name: labs-trading-data
+    spec:
+      podSelector:
+        matchLabels:
+          app.kubernetes.io/instance: labs-trading-data
+      policyTypes:
+        - Ingress
+        - Egress
+      ingress:
+        - from:
+            - podSelector:
+                matchLabels:
+                  app.kubernetes.io/instance: labs-openclaw
+          ports:
+            - protocol: TCP
+              port: 8080
+      egress:
+        # Cluster DNS
+        - to:
+            - namespaceSelector:
+                matchLabels:
+                  kubernetes.io/metadata.name: kube-system
+          ports:
+            - protocol: UDP
+              port: 53
+            - protocol: TCP
+              port: 53
+        # Public internet (exchanges + APIs); RFC1918 ranges denied.
+        - to:
+            - ipBlock:
+                cidr: 0.0.0.0/0
+                except:
+                  - 10.0.0.0/8
+                  - 172.16.0.0/12
+                  - 192.168.0.0/16
+          ports:
+            - protocol: TCP
+              port: 443
+extraExternalSecrets:
+  ghcr-credentials:
+    refreshInterval: 24h
+    targetSecret: ghcr-credentials
+    targetTemplateType: kubernetes.io/dockerconfigjson
+    targetTemplateMetadataAnnotations:
+      argocd.argoproj.io/compare-options: IgnoreExtraneous
+    data:
+      - secretKey: .dockerconfigjson
+        remoteKey: platform/backstage/ghcr-credentials
+        property: dockerconfigjson
+  # Free-tier upstream API keys. Operator provisions these in Vault at
+  # secret/data/teams/labs/trading-data/{cryptocompare,etherscan} (field
+  # `api_key`). NEWS_API_KEY is consumed by mctl-trading-data's news.py
+  # (CryptoCompare News v2 since 0.2.0) — vendor-neutral env name so a
+  # future swap stays a one-file change.
+  labs-trading-data-upstream:
+    refreshInterval: 1h
+    targetSecret: labs-trading-data-upstream
+    data:
+      - secretKey: NEWS_API_KEY
+        remoteKey: secret/data/teams/labs/trading-data/cryptocompare
+        property: api_key
+      - secretKey: ETHERSCAN_API_KEY
+        remoteKey: secret/data/teams/labs/trading-data/etherscan
+        property: api_key
+  # Server-side bearer for incoming MCP requests. Same Vault path is consumed
+  # client-side by labs-openclaw — see ExternalSecret labs-trading-data-client
+  # in services/labs/openclaw/values.yaml.
+  labs-trading-data-server:
+    refreshInterval: 1h
+    targetSecret: labs-trading-data-server
+    data:
+      - secretKey: TRADING_DATA_TOKEN
+        remoteKey: secret/data/teams/labs/trading-data/client-token
+        property: bearer_token