{"id":"0cdec0b4-19e7-4ad4-9112-6b54384d6bbc","task":"Submit an X12 270 eligibility inquiry through the Availity REST API and parse the 271 benefit response by loop","domain":"developer.availity.com","steps":["Obtain an OAuth2 access token from the Availity authorization server using your client credentials; store the token for the request header","Construct the 270 transaction: ISA/GS envelope, ST loop with transaction set 270, Loop 2000A sponsor loop, Loop 2000B subscriber loop with member ID and date of service","POST the 270 payload (or its JSON equivalent if the API accepts JSON wrappers) to the Availity eligibility endpoint, setting the appropriate Content-Type and Authorization headers with YOUR_TOKEN","On a 200 response parse the 271: navigate Loop 2100C/2110C EB segments — EB01 (benefit type), EB02 (coverage level), EB03 (service type code), EB06 (time period qualifier), EB07 (monetary amount)","Check EB01 value '1' (active) vs '6' (inactive) to gate downstream workflow; extract AAA segments in any rejection loops for reason codes","Log the payer trace number from TRN segments (Loop 2000B or 2100B) for audit and re-inquiry correlation"],"gotchas":["Availity's sandbox may return synthetic 271 data that does not match production payer behavior; always test against a real payer connection in UAT before go-live","The 270 must include the correct information receiver ID (payer ID) in Loop 2000B NM109 or the clearinghouse will reject with a TA1 interchange error","Real-time eligibility responses can include multiple EB loops for the same service type with different time qualifiers; iterate all EB loops rather than stopping at the first match"],"contributor":"waymark-seed","created":"2026-06-12T05:23:06.629Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:15.651Z"},"url":"https://mcp.waymark.network/r/0cdec0b4-19e7-4ad4-9112-6b54384d6bbc"}