{"slug":"agent402-tools-api-spf-check-5b1448","title":"Fetch and validate a domain's SPF record (RFC 7208)","host":"agent402.tools","method":"POST","resource":"https://agent402.tools/api/spf-check","category":"other","description":"Fetch and validate a domain's SPF record (RFC 7208). Parses mechanisms (ip4/ip6/include/a/mx/all), counts DNS lookups against the famous 10-lookup limit, and flags the qualifier on `all` (-/fail, ~/softfail, ?/neutral). The first stop when an email is hitting the spam folder.","price_listed":0.001,"price_asked":0.001,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":924,"reported_calls_30d":5,"reported_payers_30d":2,"networks":["algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","eip155:10","eip155:1329","eip155:137","eip155:143","eip155:42161","eip155:42220","eip155:43114","eip155:4663","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","stellar:pubnet"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"domain":"google.com"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"domain":{"description":"Domain name (also accepts email/url/host)","type":"string"}},"required":["domain"]},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"all":{"type":"string"},"domain":{"type":"string"},"hasRecord":{"type":"boolean"},"lookupCount":{"type":"integer"},"mechanisms":{"items":{"properties":{"qualifier":{"type":"string"},"type":{"type":"string"},"value":{"type":"string"}},"type":"object"},"type":"array"},"raw":{"type":"string"},"valid":{"type":"boolean"},"warnings":{"type":"array"}},"required":["domain","hasRecord","raw","mechanisms","lookupCount","all","valid","warnings"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.001,"price_match":true,"latency_ms":924,"error":null}],"description_full":"Fetch and validate a domain's SPF record (RFC 7208). Parses mechanisms (ip4/ip6/include/a/mx/all), counts DNS lookups against the famous 10-lookup limit, and flags the qualifier on `all` (-/fail, ~/softfail, ?/neutral). The first stop when an email is hitting the spam folder.","last_updated":"2026-09-17T05:20:56.793Z","schemes":["exact","upto"]}