API discoveries

Comparing eBay Account API, AGCO API, and agentOS Api V2 from the OpenAPI Directory

This comparison examines three API definitions captured in the OpenAPI directory on 2026-09-20: two eBay Account API records (ebay.com and api.ebay.com), the AGCO API for agco-ats.com, and the agentOS Api V2 Customer Login Call Group for letmc.com. It outlines their reported purposes, notes where the metadata is identical or sparse, highlights concrete differences, and suggests concrete steps for further evaluation.

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eBay Account API entries (duplicate definitions)

Two records exist for the eBay Account API, one at https://api.apis.guru/v2/specs/ebay.com/sell-account/v1.9.0/openapi.json and another at https://api.apis.guru/v2/specs/api.ebay.com/sell-account/v1.9.0/openapi.json. Both share the exact same description: sellers can configure eBay seller accounts, policies, opt‑in/out of programs, set sales tax tables, and retrieve account information. The observation timestamp is identical for both (2026-09-20T17:39:44.601Z) and authentication is listed as Unknown. Because the descriptions match, the metadata does not reveal any functional divergence; any differences would require inspecting the raw OpenAPI documents.

AGCO API definition

The AGCO API record points to https://api.apis.guru/v2/specs/agco-ats.com/v1/openapi.json. Its description merely states that it is "API definition published in the OpenAPI directory for agco-ats.com" and directs the reader to the linked specification for supported operations. No further detail about purpose, authentication, or specific endpoints is provided in the metadata. The observation date is 2026-09-20T17:39:44.601Z and authentication is Unknown. This brevity limits immediate understanding of what the API enables beyond being an OpenAPI document.

agentOS Api V2, Customer Login Call Group

The agentOS record is located at https://api.apis.guru/v2/specs/letmc.com/customer/v2-customer/openapi.json. Its description reads: "agentOS Api V2, Customer Login Call Group: API definition published in the OpenAPI directory for letmc.com. See the linked specification for supported operations." Like the AGCO entry, it offers no explicit statement of business purpose, authentication method, or endpoint summary. The observation timestamp matches the others (2026-09-20T17:39:44.601Z) and authentication is Unknown. Consequently, the metadata alone cannot clarify the scope of customer‑login‑related features it exposes.

Concrete differences among the APIs

The two eBay Account API records are distinguished only by their hostnames (ebay.com vs api.ebay.com) while carrying identical descriptive text, suggesting a possible duplicate or mirror. Both eBay entries and the AGCO and agentOS records share the same observation date and an Unknown authentication flag. The eBay descriptions are specific about account configuration tasks, whereas the AGCO and agentOS descriptions are generic, merely indicating that an OpenAPI definition exists and referencing the linked spec for details. Thus, the primary concrete differences lie in the specificity of the reported purpose and the domain variation present in the eBay pair.

Next evaluation steps

To move beyond the limited metadata, each OpenAPI document should be fetched and inspected for concrete differences: enumerate available paths and HTTP methods, identify any declared security schemes (e.g., OAuth, API keys), note versioning information, and check for deprecation or stability flags. Comparing the actual endpoint sets will reveal whether the eBay duplicates truly differ or are identical, and will clarify the functional scope of the AGCO and agentOS APIs beyond their placeholder descriptions. Such inspection can also uncover any disparate rate limits, error schemas, or extension fields that are not evident in the directory summary.