diff --git a/service/attestation/attestation-agent/agent/src/lib.rs b/service/attestation/attestation-agent/agent/src/lib.rs
index 673e71d977734b867b3577b4d2cd3a4531c6b3ae..33164fb93077f7f507b1717b8a2cd2d9bbfda529 100644
--- a/service/attestation/attestation-agent/agent/src/lib.rs
+++ b/service/attestation/attestation-agent/agent/src/lib.rs
@@ -404,6 +404,37 @@ pub fn get_report(c_challenge: Option<&repr_c::Vec<u8>>, c_ima: &repr_c::TaggedO
     report.into()
 }
 
+#[cfg(feature = "no_as")]
+use verifier::virtcca_parse_evidence;
+
+#[cfg(feature = "no_as")]
+#[ffi_export]
+pub fn parse_report(report: Option<&repr_c::Vec<u8>>) -> repr_c::String {
+    let report = match report {
+        None => {
+            log::error!("report is null");
+            return "".to_string().into();
+        },
+        Some(report) => report.clone().to_vec(),
+    };
+    let rt = Runtime::new().unwrap();
+    let fut = async {virtcca_parse_evidence(&report)};
+    let ret = rt.block_on(fut);
+    
+    let ret = match ret {
+        Ok(claim) => {
+            log::debug!("claim: {:?}", claim);
+            claim.to_string()
+        },
+        Err(e) =>{
+            log::error!("{e}");
+            "".to_string()
+        },
+    };
+    
+    return ret.into();
+}
+
 #[ffi_export]
 pub fn verify_report(c_challenge: Option<&repr_c::Vec<u8>>, report: Option<&repr_c::Vec<u8>>) -> repr_c::String {
     let challenge = match c_challenge {
diff --git a/service/attestation/attestation-agent/c_header/example.c b/service/attestation/attestation-agent/c_header/example.c
index de4cc1db5a3e1afc2b30c62e21ac611665f74b27..8bb939db84d4a0a12b08105e770962b4c0de389f 100644
--- a/service/attestation/attestation-agent/c_header/example.c
+++ b/service/attestation/attestation-agent/c_header/example.c
@@ -20,7 +20,7 @@
 #include <pthread.h>
 
 #define CHALLENGE_LEN 32
-#define TEST_THREAD_NUM 5
+#define TEST_THREAD_NUM 1
 
 void *thread_proc(void *arg)
 {
@@ -45,6 +45,15 @@ void *thread_proc(void *arg)
     if (report.len != 0) {
         report.ptr[report.len] = '\0'; // rust return string has no '\0'
         printf("get report success, report:%s\n", report.ptr);
+
+        // parse report
+        Vec_uint8_t claim_no_verify = parse_report(&report);
+        if (claim_no_verify.len != 0) {
+            claim_no_verify.ptr[claim_no_verify.len] = '\0';
+            printf("parse report success: %s\n", claim_no_verify.ptr);
+        }
+        free_rust_vec(claim_no_verify);
+
         // step4: verify report
         claim = verify_report(&challenge, &report);
     }
@@ -60,7 +69,7 @@ void *thread_proc(void *arg)
 }
 int main()
 {
-    char *level = "debug";
+    char *level = "info";
     Vec_uint8_t log_level = {
         .ptr = (uint8_t *)level,
         .len = strlen(level),
diff --git a/service/attestation/attestation-agent/c_header/rust_attestation_agent.h b/service/attestation/attestation-agent/c_header/rust_attestation_agent.h
index 82faf1a0d1d4527d2cff3eafb1083d932afc22da..9c1a18fd53e7c243859da0ef0132caf1ee2c572c 100644
--- a/service/attestation/attestation-agent/c_header/rust_attestation_agent.h
+++ b/service/attestation/attestation-agent/c_header/rust_attestation_agent.h
@@ -62,6 +62,11 @@ void
 init_env_logger (
     Vec_uint8_t const * c_level);
 
+/** <No documentation available> */
+Vec_uint8_t
+parse_report (
+    Vec_uint8_t const * report);
+
 /** <No documentation available> */
 Vec_uint8_t
 verify_report (
diff --git a/service/attestation/attestation-service/verifier/src/lib.rs b/service/attestation/attestation-service/verifier/src/lib.rs
index 0b776c291842cadcdb3795a72c743031434d16a7..a0e0b58fb63b81359acaa5db35ad8061012b3d00 100644
--- a/service/attestation/attestation-service/verifier/src/lib.rs
+++ b/service/attestation/attestation-service/verifier/src/lib.rs
@@ -58,3 +58,10 @@ impl VerifierAPIs for Verifier {
         }
     }
 }
+
+pub fn virtcca_parse_evidence(evidence: &[u8]) -> Result<TeeClaim> {
+    let aa_evidence: Evidence = serde_json::from_slice(evidence)?;
+    let evidence = aa_evidence.evidence.as_bytes();
+
+    return virtcca::Evidence::parse_evidence(evidence);
+}
diff --git a/service/attestation/attestation-service/verifier/src/virtcca/mod.rs b/service/attestation/attestation-service/verifier/src/virtcca/mod.rs
index 3de7c9f4999b07604cb257f3bf46dcd024cc44c9..ca3a2ff2d9f30b3b43a9cd4f066c3a5511b14550 100644
--- a/service/attestation/attestation-service/verifier/src/virtcca/mod.rs
+++ b/service/attestation/attestation-service/verifier/src/virtcca/mod.rs
@@ -114,6 +114,16 @@ impl Evidence {
         // todo parsed TeeClaim
         evidence.parse_claim_from_evidence(ima)
     }
+    pub fn parse_evidence(evidence: &[u8]) -> Result<TeeClaim> {
+        let virtcca_ev: VirtccaEvidence = serde_json::from_slice(evidence)?;
+        let evidence = virtcca_ev.evidence;
+        let evidence = Evidence::decode(evidence)?;
+
+        let ima = json!("");
+        // parsed TeeClaim
+        let claim = evidence.parse_claim_from_evidence(ima).unwrap();
+        Ok(claim["payload"].clone() as TeeClaim)
+    }
     fn parse_claim_from_evidence(&self, ima: serde_json::Value) -> Result<TeeClaim> {
         let payload = json!({
             "vcca.cvm.challenge": hex::encode(self.cvm_token.challenge.clone()),