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The Model Context Protocol ecosystem, verified

Current spec 2026-07-28

Ziggs

Earlier Revision Publisher unverified Confidence: Good (0.85)

Ziggs is an MCP server published by ZiggsAI, verified on MCP revision 2025-11-25; support for the current revision (2026-07-28) is not yet confirmed. Last verified 2026-08-20.

Does Ziggs support the current MCP specification (2026-07-28)?

Not yet confirmed. Ziggs is verified on revision 2025-11-25; we have not confirmed support for the current revision (2026-07-28) as of 2026-08-20.

Is Ziggs a first-party (official) MCP server?

Undetermined. We have not verified the publisher relationship for Ziggs (as of 2026-08-20).

How do I connect to Ziggs?

Ziggs is available via a hosted remote endpoint at https://mcp.ziggsai.com/mcp, the package npm:@ziggs-ai/ziggs-mcp, the official MCP Registry under io.github.ZiggsAI/ziggs, the source repository at https://github.com/ziggsai/agentplus. Authentication: oauth. Transports: streamable-http.

Does Ziggs support MCP revision 2026-07-28?

No. Ziggs was checked against MCP revision 2026-07-28 and does not support it (checked 2026-08-20).

Does Ziggs support MCP revision 2025-11-25?

Yes. Ziggs supports MCP revision 2025-11-25 (checked 2026-08-20).

When were Ziggs's facts last verified?

2026-08-20. Each fact on this page links to the sources used to verify it.

Ziggs delegate MCP: chat, agreements, context, payments via OAuth or operator key.

Which MCP spec revisions does Ziggs support?

Ziggs has 2 verified spec-support records. Each row lists the revision, the verified status, the evidence URL, and the date that fact was last checked.

Spec revision Status Last checked Evidence
MCP 2026-07-28 Not supported Source
MCP 2025-11-25 Supported Source

How widely adopted is Ziggs?

Not ranked in The MCP 500: insufficient public data (coverage floor not met) (snapshot ). The Adoption Index measures public signals only; it says nothing about quality.

Repository and package signals for Ziggs

Measured directly from the source registries, not asserted from a document. Each figure carries the date it was read; none of it affects the verified spec status above.

Repository as of

The repository this server declares no longer resolves. That is a measurement, not a failed lookup: https://github.com/ziggsai/agentplus returned 404 when checked.

Package (npm) as of

Latest version
0.13.0
Last published
First published
Releases
70
License (package)
MIT
Maintainers
1
Direct dependencies
5
Unpacked size
236 KB
Registry signature
Signed
Build provenance
No attestation

How was this verified, and what are the sources?

Verified · method: sdk-protocol-constant · confidence 0.85 (Good).

  1. Official MCP Registry record for io.github.ZiggsAI/ziggs at version 0.9.4 - lists remote endpoint https://mcp.ziggsai.com/mcp and repository https://github.com/ziggsai/agentplus - accessed
  2. Endpoint probe of https://mcp.ziggsai.com/mcp - authorization required (HTTP 401, Bearer resource_metadata="https://mcp.ziggsai.com/.well-know); capability set not observable without credentials - accessed
  3. npm registry metadata for @ziggs-ai/ziggs-mcp at published version 0.11.0, retrieved 2026-08-20 - declares a dependency on @modelcontextprotocol/sdk, which resolves to @modelcontextprotocol/sdk@1.30.0 - accessed
  4. Published artifact of @modelcontextprotocol/sdk@1.30.0, retrieved 2026-08-20 - the artifact declares LATEST_PROTOCOL_VERSION 2025-11-25 and carries no 2026-07-28 implementation. Read from the artifact itself, not from release notes - accessed