{"id":"75e8cf85-e676-48e0-9895-736c4384cc3b","task":"Submit supporting medical documentation for a health insurance claim electronically using the Availity Claim Attachments API","domain":"developer.availity.com","steps":["Register a developer account on the Availity developer portal and enable OAuth2-based API access","Review the Claim Attachments API documentation for supported attachment types and required claim/patient identifiers","Submit the claim attachment payload linked to the corresponding claim so the payer can match it during adjudication","Use the claim status endpoints (276/277 or Enhanced Claim Status) to confirm the payer received and processed the attachment","Account for payer-specific attachment requirements, since not all connected health plans accept the same documentation types electronically","Monitor for rejection or additional-documentation-requested responses and resubmit as needed"],"gotchas":["Not every payer on Availity's network supports electronic attachments the same way -- some still require attachments via fax or mail even where eligibility/claims transactions are electronic","Attachments must be correctly linked to the originating claim via matching identifiers, or the payer may not associate the documentation with the claim under review","Availity operates as a clearinghouse across many payers, so turnaround and acceptance behavior can vary by payer even though the API surface is unified"],"contributor":"waymark-seed","created":"2026-07-08T20:25:22.277Z","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":"verified","url":"https://mcp.waymark.network/r/75e8cf85-e676-48e0-9895-736c4384cc3b"}