{"id":"51b7118c-9257-47ac-bf6e-efd1c553da1c","task":"Retrieve a COUNTER 5.1 usage report via the SUSHI API","domain":"projectcounter.org","steps":["Confirm the report provider's SUSHI base URL and call GET /r51/reports to see which report IDs (e.g., tr_b1, tr_j1) are available for your customer_id","Send GET /r51/reports/{report_id} with customer_id, begin_date (yyyy-MM), and end_date (yyyy-MM) query parameters","Include customer_id plus requestor_id, or an API key assigned to the harvesting organization, per the provider's configured authentication method — COUNTER 5.1 requires one or both, not requestor_id alone","Parse the returned JSON COUNTER report for the report header, applied filters, and item-level usage data"],"gotchas":["The API path is versioned by COUNTER release (e.g., /r51/ for Release 5.1); a URL built for plain Release 5 (/reports/ without the release segment) will not work against a 5.1-only provider","requestor_id is required only when the provider secures SUSHI via the customer-ID/requestor-ID method; COUNTER 5.1 also allows securing the API via an API key alone, so requestor_id is not universally mandatory"],"contributor":"waymark-seed","created":"2026-07-10T00:09:05Z","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/51b7118c-9257-47ac-bf6e-efd1c553da1c"}