diff --git a/pyproject.toml b/pyproject.toml
index a058042..4e44f79 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -90,6 +90,7 @@ extract = [
     "striprtf>=0.0.26",
     "chardet>=5.2",
     "python-magic>=0.4.27",
+    "opentelemetry-instrumentation-httpx>=0.45b0",
 ]
 analyze = [
     { include-group = "db" },
@@ -114,6 +115,7 @@ notify = [
     { include-group = "mq" },
     { include-group = "obs" },
     "aiosmtplib>=3.0",
+    "opentelemetry-instrumentation-httpx>=0.45b0",
 ]
 billing = [
     { include-group = "db" },
diff --git a/src/contract_check/api/app.py b/src/contract_check/api/app.py
index 7f3ab80..363a731 100644
--- a/src/contract_check/api/app.py
+++ b/src/contract_check/api/app.py
@@ -147,6 +147,15 @@ def create_app() -> FastAPI:
         ) -> RedirectResponse:
             return RedirectResponse(url=f"/admin/login?reason={exc.reason}", status_code=303)
 
+    # Emit request traces to the OTLP collector. Must happen after all routes
+    # and middleware are registered so spans cover the full request lifecycle.
+    try:
+        from opentelemetry.instrumentation.fastapi import FastAPIInstrumentor
+
+        FastAPIInstrumentor.instrument_app(app)
+    except Exception:  # pragma: no cover - optional instrumentor
+        pass
+
     return app
 
 
diff --git a/src/contract_check/core/telemetry.py b/src/contract_check/core/telemetry.py
index 39eba66..9cd10bf 100644
--- a/src/contract_check/core/telemetry.py
+++ b/src/contract_check/core/telemetry.py
@@ -97,9 +97,10 @@ def setup_telemetry(service_name: str | None = None) -> None:
 
     resource = Resource.create({"service.name": service_name or settings.otel_service_name})
 
-    # Traces
+    # Traces. Exporters read OTEL_EXPORTER_OTLP_ENDPOINT and append the
+    # signal-specific path (/v1/traces, /v1/logs, /v1/metrics) automatically.
     trace_provider = TracerProvider(resource=resource)
-    trace_provider.add_span_processor(BatchSpanProcessor(OTLPSpanExporter(endpoint=endpoint)))
+    trace_provider.add_span_processor(BatchSpanProcessor(OTLPSpanExporter()))
     set_tracer_provider(trace_provider)
     _trace_provider = trace_provider
 
@@ -107,9 +108,7 @@ def setup_telemetry(service_name: str | None = None) -> None:
     # through the stdlib logging tree; this handler unwraps the structured
     # event dicts so OpenObserve receives the message body and fields.
     log_provider = LoggerProvider(resource=resource)
-    log_provider.add_log_record_processor(
-        BatchLogRecordProcessor(OTLPLogExporter(endpoint=endpoint))
-    )
+    log_provider.add_log_record_processor(BatchLogRecordProcessor(OTLPLogExporter()))
     set_logger_provider(log_provider)
     _log_provider = log_provider
 
@@ -119,7 +118,7 @@ def setup_telemetry(service_name: str | None = None) -> None:
 
     # Metrics infrastructure (OTel metrics → OTLP). Existing prometheus_client
     # metrics are still scraped by Prometheus; use remote_write for those.
-    metric_reader = PeriodicExportingMetricReader(OTLPMetricExporter(endpoint=endpoint))
+    metric_reader = PeriodicExportingMetricReader(OTLPMetricExporter())
     meter_provider = MeterProvider(resource=resource, metric_readers=[metric_reader])
     set_meter_provider(meter_provider)
     _meter_provider = meter_provider
diff --git a/uv.lock b/uv.lock
index 9763c9d..8dd2bad 100644
--- a/uv.lock
+++ b/uv.lock
@@ -751,6 +751,7 @@ extract = [
     { name = "mammoth" },
     { name = "minio" },
     { name = "opentelemetry-exporter-otlp" },
+    { name = "opentelemetry-instrumentation-httpx" },
     { name = "opentelemetry-sdk" },
     { name = "pillow" },
     { name = "prometheus-client" },
@@ -770,6 +771,7 @@ notify = [
     { name = "alembic" },
     { name = "asyncpg" },
     { name = "opentelemetry-exporter-otlp" },
+    { name = "opentelemetry-instrumentation-httpx" },
     { name = "opentelemetry-sdk" },
     { name = "prometheus-client" },
     { name = "sentry-sdk" },
@@ -918,6 +920,7 @@ extract = [
     { name = "mammoth", specifier = ">=1.8" },
     { name = "minio", specifier = ">=7.2" },
     { name = "opentelemetry-exporter-otlp", specifier = ">=1.24" },
+    { name = "opentelemetry-instrumentation-httpx", specifier = ">=0.45b0" },
     { name = "opentelemetry-sdk", specifier = ">=1.24" },
     { name = "pillow", specifier = ">=10" },
     { name = "prometheus-client", specifier = ">=0.20" },
@@ -935,6 +938,7 @@ notify = [
     { name = "alembic", specifier = ">=1.13" },
     { name = "asyncpg", specifier = ">=0.29" },
     { name = "opentelemetry-exporter-otlp", specifier = ">=1.24" },
+    { name = "opentelemetry-instrumentation-httpx", specifier = ">=0.45b0" },
     { name = "opentelemetry-sdk", specifier = ">=1.24" },
     { name = "prometheus-client", specifier = ">=0.20" },
     { name = "sentry-sdk", specifier = ">=2" },