{"id":370983,"name":"Tankfern by CyberMax","description":"Heating degree day and heating fuel price API for fuel-oil and propane delivery planning: daily heating degree days for US weather stations (NOAA Regional Climate Centers, ACIS) with any base temperature, station search by state, and the latest weekly residential heating oil and propane prices (U.S. Energy Information Administration). Free, no key. The Tankfern web app (K-factor delivery planner) keeps customer data in the browser.","card_url":"https://tankfern.cybermaxtools.com/.well-known/agent-card.json","endpoint":"https://tankfern.cybermaxtools.com","protocol_version":"0.3.0","first_seen":"2026-10-24T17:47:25.161251+00:00","last_verified":"2026-10-24T19:48:26.821018+00:00","card":{"url":"https://tankfern.cybermaxtools.com","name":"Tankfern by CyberMax","skills":[{"id":"heating_degree_days","name":"Daily heating degree days for a station","tags":["degree days","heating oil","propane","k-factor","fuel delivery"],"inputModes":["application/json"],"description":"GET /api/hdd?sid=EWR&start=YYYY-MM-DD&end=YYYY-MM-DD&base=65 returns daily heating degree days from NOAA ACIS, cached 6 hours.","outputModes":["application/json"]},{"id":"hdd_stations","name":"Weather stations with degree-day data by state","tags":["degree days","heating oil","propane","k-factor","fuel delivery"],"inputModes":["application/json"],"description":"GET /api/stations?state=NJ returns stations (name, ids, coordinates) that report heating degree days, cached 6 hours.","outputModes":["application/json"]},{"id":"heating_fuel_prices","name":"Weekly residential heating oil and propane prices","tags":["degree days","heating oil","propane","k-factor","fuel delivery"],"inputModes":["application/json"],"description":"GET /api/prices returns the latest weekly residential No. 2 heating oil and propane prices ($/gal) from EIA (survey runs October-March), cached 12 hours.","outputModes":["application/json"]}],"version":"1.0.0","provider":{"url":"https://cybermaxtools.com","organization":"CyberMax"},"security":[{}],"x-pricing":"https://tankfern.cybermaxtools.com/pricing.json","description":"Heating degree day and heating fuel price API for fuel-oil and propane delivery planning: daily heating degree days for US weather stations (NOAA Regional Climate Centers, ACIS) with any base temperature, station search by state, and the latest weekly residential heating oil and propane prices (U.S. Energy Information Administration). Free, no key. The Tankfern web app (K-factor delivery planner) keeps customer data in the browser.","capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"protocolVersion":"0.3.0","securitySchemes":{},"documentationUrl":"https://tankfern.cybermaxtools.com/llms.txt","defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"preferredTransport":"HTTP+JSON","additionalInterfaces":[{"url":"https://tankfern.cybermaxtools.com","transport":"HTTP+JSON"},{"url":"https://tankfern.cybermax-tools.workers.dev","transport":"HTTP+JSON"}]},"status":"verified","publisher_domain":"cybermaxtools.com","signature_status":"unsigned","signature_detail":"No card signature supplied","signature_key_url":null,"signature_checked_at":"2026-10-24T19:48:26.821018+00:00","domain_claimed_at":null,"domain_proof_checked_at":null,"source_name":"Publisher Agent Card","source_url":"https://tankfern.cybermaxtools.com/.well-known/agent-card.json","last_check":{"checked_at":"2026-10-24T19:48:26.821018+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"also_published_at":[],"history_urls":["https://tankfern.cybermaxtools.com/.well-known/agent-card.json"],"skills":[{"skill_id":"heating_degree_days","name":"Daily heating degree days for a station","description":"GET /api/hdd?sid=EWR&start=YYYY-MM-DD&end=YYYY-MM-DD&base=65 returns daily heating degree days from NOAA ACIS, cached 6 hours.","tags":["degree days","heating oil","propane","k-factor","fuel delivery"],"quality_warning":false},{"skill_id":"hdd_stations","name":"Weather stations with degree-day data by state","description":"GET /api/stations?state=NJ returns stations (name, ids, coordinates) that report heating degree days, cached 6 hours.","tags":["degree days","heating oil","propane","k-factor","fuel delivery"],"quality_warning":false},{"skill_id":"heating_fuel_prices","name":"Weekly residential heating oil and propane prices","description":"GET /api/prices returns the latest weekly residential No. 2 heating oil and propane prices ($/gal) from EIA (survey runs October-March), cached 12 hours.","tags":["degree days","heating oil","propane","k-factor","fuel delivery"],"quality_warning":false}],"quality_flags":[],"check_history":{"checks":2,"passed":2},"recent_checks":[{"card_url":"https://tankfern.cybermaxtools.com/.well-known/agent-card.json","checked_at":"2026-10-24T19:48:26.821018+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},{"card_url":"https://tankfern.cybermaxtools.com/.well-known/agent-card.json","checked_at":"2026-10-24T17:47:25.161251+00:00","success":true,"http_status":200,"detail":"Agent Card validated"}],"endpoint_tls_check":{"checked_at":"2026-10-24T19:48:26.821018+00:00","success":true,"detail":"Valid TLS connection to advertised endpoint host; no A2A request sent"},"protocol_check":{"checked_at":"2026-10-24T17:47:25.161251+00:00","endpoint":"https://tankfern.cybermaxtools.com","protocol_binding":"HTTP+JSON","protocol_version":"0.3.0","state":"unconfirmed","http_status":404,"detail":"Advertised HTTP+JSON interface returned a generic HTTP 404, not A2A TASK_NOT_FOUND. Publish the A2A service base URL with its standard task route; an ordinary REST resource URL does not establish A2A support","request_diagnostics":{"requests":[{"path":"/v1/tasks/localmark-probe-73fce713-49c1-4ee6-9a2b-f34c1b6324dd","allow":[],"method":"GET","status":404,"version_header":"0.3","protocol_method":null,"redirect_followed":false}],"capture_version":1}},"declared_primary_endpoint":"https://tankfern.cybermaxtools.com","selected_connection_interface":{"url":"https://tankfern.cybermaxtools.com","protocolBinding":"HTTP+JSON","protocolVersion":"0.3.0"},"protocol_interface_checks":[{"endpoint":"https://tankfern.cybermaxtools.com","protocol_binding":"HTTP+JSON","protocol_version":"0.3.0","selected":true,"state":"unconfirmed","checked_at":"2026-10-24T17:47:25.161251+00:00","http_status":404,"detail":"Advertised HTTP+JSON interface returned a generic HTTP 404, not A2A TASK_NOT_FOUND. Publish the A2A service base URL with its standard task route; an ordinary REST resource URL does not establish A2A support","binding_recorded":true},{"endpoint":"https://tankfern.cybermax-tools.workers.dev","protocol_binding":"HTTP+JSON","protocol_version":"0.3.0","selected":false,"state":"unconfirmed","checked_at":"2026-10-24T17:47:25.161251+00:00","http_status":404,"detail":"Advertised HTTP+JSON interface returned a generic HTTP 404, not A2A TASK_NOT_FOUND. Publish the A2A service base URL with its standard task route; an ordinary REST resource URL does not establish A2A support","binding_recorded":true}],"connection_selection_note":"The selected connection uses an address advertised in the publisher card. Read-only observations do not establish task quality or safety.","x402_price_check":null,"events":[],"relationships":[],"verification":{"agent_card_url":"https://tankfern.cybermaxtools.com/.well-known/agent-card.json","last_successful_card_check":"2026-10-24T19:48:26.821018+00:00","latest_card_check":{"checked_at":"2026-10-24T19:48:26.821018+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"signature_status":"unsigned","signature_checked_at":"2026-10-24T19:48:26.821018+00:00","task_endpoint_tested":true,"task_execution_tested":false,"endpoint_tls_checked_at":"2026-10-24T19:48:26.821018+00:00","endpoint_tls_reachable":true,"protocol_check_state":"unconfirmed","protocol_checked_at":"2026-10-24T17:47:25.161251+00:00","provider_identity_verified":false,"domain_claimed_at":null,"domain_proof_checked_at":null},"synthetic_capability_tests":{"agent_id":370983,"status":"not_tested","reason_code":"not_yet_tested","consent_status":"not_confirmed","latest_observation_status":null,"last_checked_at":null,"fixture_version":"1","reference_demonstration":false,"scope":"A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.","methodology_url":"https://localmark.ai/capability-tests","history":[]},"repair_links":{"agent_repair_url":"https://localmark.ai/agents/370983/repair","publisher_report_url":"https://localmark.ai/publishers/cybermaxtools.com/repair","diagnostics_json_url":"https://localmark.ai/publishers/cybermaxtools.com/repair/diagnostics.json","diagnostics_csv_url":"https://localmark.ai/publishers/cybermaxtools.com/repair/diagnostics.csv"},"_localmark":{"contribution":{"optional":true,"directory_access":"free","operator_authorization_required":true,"affects_rankings":false,"message":"LocalMark is free. Optional contributions help fund ongoing checks.","support_url":"https://localmark.ai/support","metadata_url":"https://localmark.ai/api/v1/support/contributions"}}}