- Recipient
- not observed
- Chain
- not observed
- Unit type
- request
Email finding, verification, and company enrichment for outreach and lead generation.
- Implementation fingerprint
- unknown no confident attribution
- Fingerprint evidence
- No implementation-specific public signal observed.
- First seen
- Aug 25, 2026, 6:43 PM UTC
- Last seen
- Oct 9, 2026, 6:17 PM UTC
- Origin
- https://hunter.mpp.paywithlocus.com
- Tags
- emailverificationenrichmentoutreach
Payment surface
8 MPP endpoints
This count includes endpoints established by catalog, OpenAPI, or valid runtime 402 evidence. It does not count every URL the harmless scanner attempted.
- Recipient
- not observed
- Chain
- not observed
- Unit type
- request
- Recipient
- not observed
- Chain
- not observed
- Unit type
- request
- Recipient
- not observed
- Chain
- not observed
- Unit type
- not observed
- Session · dynamic
- true
- Session · amountHint
- $0.013-$0.103
- Recipient
- not observed
- Chain
- not observed
- Unit type
- request
- Recipient
- not observed
- Chain
- not observed
- Unit type
- request
- Recipient
- not observed
- Chain
- not observed
- Unit type
- request
- Recipient
- not observed
- Chain
- not observed
- Unit type
- request
Probe coverage
10 harmless observations
These are bounded unauthenticated requests and scanner-policy stops. A response without MPP evidence remains a discovery result, not a security failure.
GET https://hunter.mpp.paywithlocus.com/.well-known/api-catalog
HTTP 404242 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Oct 9, 2026, 12:22 PM UTCGET https://hunter.mpp.paywithlocus.com/openapi.json
HTTP 20013,622 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Oct 2, 2026, 6:23 PM UTCGET https://hunter.mpp.paywithlocus.com/
HTTP 404242 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Oct 1, 2026, 6:19 AM UTCGET https://hunter.mpp.paywithlocus.com/.well-known/api-catalog
HTTP 404242 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Sep 30, 2026, 6:19 PM UTCGET https://hunter.mpp.paywithlocus.com/openapi.json
HTTP 20013,622 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Sep 23, 2026, 12:24 PM UTCGET https://hunter.mpp.paywithlocus.com/
HTTP 404242 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Sep 22, 2026, 12:25 AM UTCGET https://hunter.mpp.paywithlocus.com/.well-known/api-catalog
HTTP 404242 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Sep 21, 2026, 6:20 PM UTCGET https://hunter.mpp.paywithlocus.com/openapi.json
HTTP 20013,622 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Sep 14, 2026, 12:20 PM UTCGET https://hunter.mpp.paywithlocus.com/
HTTP 404242 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Sep 13, 2026, 12:21 AM UTCGET https://hunter.mpp.paywithlocus.com/.well-known/api-catalog
HTTP 404242 response bytes · 0 redirects · HTTPS fetch completed with platform certificate validation
Sep 12, 2026, 6:19 PM UTCEvidence model
Security properties
Every result names its evidence state. Unknown and not tested never mean secure.
api_catalog_parse
ObservedNo RFC 9727 API catalog was available at this URL (HTTP 404); prior advertised links were withdrawn
Basis: RFC 9727 discovery response · Oct 9, 2026, 12:22 PM UTCauthorization_delivery_settlement
Not testedRequires paid or state-changing behavior outside scanner scope
Basis: Tempo Aug 24 research class · Prior art: https://github.com/wevm/mppx/pull/510#discussion_r3377899233 · Oct 9, 2026, 12:22 PM UTCbounded_response
Tested — pass242 bytes within scanner limit
Basis: harmless scanner · Oct 9, 2026, 12:22 PM UTCchallenge_parse
UnknownNo MPP Payment challenge observed
Basis: unauthenticated HTTP response · Oct 9, 2026, 12:22 PM UTCchannel_lifecycle_binding
Not testedChannel and settlement lifecycle require credentials or payments
Basis: public economic-security prior art · Oct 9, 2026, 12:22 PM UTCconcurrency_single_winner
Not testedConcurrency and paid state changes are prohibited
Basis: public economic-security prior art · Oct 9, 2026, 12:22 PM UTCcredential_replay
Not testedScanner never sends credentials or payments
Basis: methodology · Prior art: https://github.com/advisories/GHSA-fxc9-7j2w-vx54 · Oct 9, 2026, 12:22 PM UTCeconomic_exposure_metadata
UnknownNo current Payment challenge exposes session or authorization inputs
Basis: observable challenge values only · Oct 9, 2026, 12:22 PM UTCfee_payer_cosigner_binding
Not testedSignature and fee-payer relationships are not observable unauthenticated
Basis: public economic-security prior art · Oct 9, 2026, 12:22 PM UTChttps_transport
Tested — passHTTPS fetch completed with platform certificate validation
Basis: platform TLS validation · Oct 9, 2026, 12:22 PM UTCmethod_fallback_policy
Not testedScanner does not select, downgrade, or execute payment methods
Basis: public economic-security prior art · Oct 9, 2026, 12:22 PM UTCprice_debit_consistency
Not testedRequires a completed paid interaction outside scanner scope
Basis: public economic-security prior art · Oct 9, 2026, 12:22 PM UTCredirect_policy
Tested — pass0 redirects; every hop passed URL and DNS validation
Basis: harmless scanner · Oct 9, 2026, 12:22 PM UTCreplay_idempotency_scope
Not testedScanner never replays signed credentials
Basis: public advisory and protocol prior art · Prior art: https://github.com/advisories/GHSA-fxc9-7j2w-vx54 · Oct 9, 2026, 12:22 PM UTCssrf_target_validation
Tested — pass1 hop(s) resolved twice to stable public addresses
Basis: scanner URL, DNS and redirect policy · Oct 9, 2026, 12:22 PM UTCopenapi_parse
ObservedCredential-shaped discovery URL was excluded from indexing and fan-out by scanner policy
Basis: harmless discovery response · Oct 2, 2026, 6:23 PM UTCauthorization_delivery_settlement
Not testedRequires paid or state-changing behavior outside scanner scope
Basis: Tempo Aug 24 research class · Prior art: https://github.com/wevm/mppx/pull/510#discussion_r3377899233 · Oct 1, 2026, 6:19 AM UTCbounded_response
Tested — pass242 bytes within scanner limit
Basis: harmless scanner · Oct 1, 2026, 6:19 AM UTCchallenge_parse
UnknownNo MPP Payment challenge observed
Basis: unauthenticated HTTP response · Oct 1, 2026, 6:19 AM UTCchannel_lifecycle_binding
Not testedChannel and settlement lifecycle require credentials or payments
Basis: public economic-security prior art · Oct 1, 2026, 6:19 AM UTCconcurrency_single_winner
Not testedConcurrency and paid state changes are prohibited
Basis: public economic-security prior art · Oct 1, 2026, 6:19 AM UTCcredential_replay
Not testedScanner never sends credentials or payments
Basis: methodology · Prior art: https://github.com/advisories/GHSA-fxc9-7j2w-vx54 · Oct 1, 2026, 6:19 AM UTCeconomic_exposure_metadata
UnknownNo current Payment challenge exposes session or authorization inputs
Basis: observable challenge values only · Oct 1, 2026, 6:19 AM UTCfee_payer_cosigner_binding
Not testedSignature and fee-payer relationships are not observable unauthenticated
Basis: public economic-security prior art · Oct 1, 2026, 6:19 AM UTChttps_transport
Tested — passHTTPS fetch completed with platform certificate validation
Basis: platform TLS validation · Oct 1, 2026, 6:19 AM UTCmethod_fallback_policy
Not testedScanner does not select, downgrade, or execute payment methods
Basis: public economic-security prior art · Oct 1, 2026, 6:19 AM UTCprice_debit_consistency
Not testedRequires a completed paid interaction outside scanner scope
Basis: public economic-security prior art · Oct 1, 2026, 6:19 AM UTCredirect_policy
Tested — pass0 redirects; every hop passed URL and DNS validation
Basis: harmless scanner · Oct 1, 2026, 6:19 AM UTCreplay_idempotency_scope
Not testedScanner never replays signed credentials
Basis: public advisory and protocol prior art · Prior art: https://github.com/advisories/GHSA-fxc9-7j2w-vx54 · Oct 1, 2026, 6:19 AM UTCssrf_target_validation
Tested — pass1 hop(s) resolved twice to stable public addresses
Basis: scanner URL, DNS and redirect policy · Oct 1, 2026, 6:19 AM UTC— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"13622 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"13622 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"13622 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"13622 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"13622 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"13622 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"12804 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"12804 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:openapi_parse: {"state":"observed","evidence":"Credential-shaped discovery URL was excluded from indexing and fan-out","basis":"harmle… → {"state":"observed","evidence":"Credential-shaped discovery URL was excluded from indexing and fan-out by scanner polic…
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:api_catalog_parse: {"state":"observed","evidence":"API catalog source returned HTTP 404; prior advertised links were withdrawn","basis":"R… → {"state":"observed","evidence":"No RFC 9727 API catalog was available at this URL (HTTP 404); prior advertised links we…
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"12804 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"12804 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:openapi_parse: {"state":"tested-fail","evidence":"Credential-shaped discovery URL was excluded from indexing and fan-out","basis":"har… → {"state":"observed","evidence":"Credential-shaped discovery URL was excluded from indexing and fan-out","basis":"harmle…
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"12804 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:api_catalog_parse: {"state":"tested-fail","evidence":"API catalog source returned HTTP 404; prior advertised links were withdrawn","basis"… → {"state":"observed","evidence":"API catalog source returned HTTP 404; prior advertised links were withdrawn","basis":"R…
Evidence: Repeated harmless observation changed the modeled property
— security-property-changed
security:bounded_response: {"state":"tested-pass","evidence":"242 bytes within scanner limit","basis":"harmless scanner"} → {"state":"tested-pass","evidence":"12804 bytes within scanner limit","basis":"harmless scanner"}
Evidence: Repeated harmless observation changed the modeled property
— probe-observation
tls_state: not-tested → tested-pass
Evidence: harmless unauthenticated HTTP observation
— probe-observation
content_type → application/json; charset=utf-8
Evidence: harmless unauthenticated HTTP observation
— payment-offer-discovered
offer → {"method":"tempo","intent":"charge","currency":"0x20c000000000000000000000b9537d11c60e8b50","chainId":null,"recipient":…
Evidence: catalog payment metadata