Is io.github.dtajitdinov-aris/sphere-marketplace up? Live MCP status
Yes, it is up. It answered an MCP initialize with no credential and negotiated protocol 2025-11-25.
A stock client connected with no credential and negotiated 2025-11-25. Use it.
| Outcome | usable |
|---|---|
| HTTP status | 200 |
| Protocol version | 2025-11-25 |
| Server says it is | sphere-marketplace 1.1.0 |
| Answered in | 1779 ms |
| Endpoint checked | https://starsphera.com/mcp/sse |
| Checked |
One MCP handshake with the listed endpoint (server/discover at 2026-07-28, then initialize for a server on the older revision), with no credential and no retry, identifying itself as agentwares-mcp-liveness/0.1 (+https://agentwares-agentcheck.vercel.app/bot). It runs when this page is requested and the result is reused for 10 minutes, so the time above is when it was taken.
Live status every few hours: Wellknown
Email me when this server changes
That was one look. To hear when it stops answering or its tools change, leave an address.
Free, no password or GitHub: one confirmation email first, then a check every hour and an email when it stops answering or its tools change. Every email has a link to stop. More about it.
Monthly census, 6 October 2026
The census sends the same request to every remote listing in the official registry once a month. On 6 October 2026 this one answered a stock client with no credential. Every listing’s result: index.ndjson (what the files hold: index.meta.json).
Agent discovery documents at this origin
| A2A agent card | Published, does not validate: an A2A 0.3 card: no `supportedInterfaces`, which 1.0 requires in place of `url` and `protocolVersion`. A2A 0.3 shape; 7 skills; STREAMABLE_HTTP./.well-known/agent-card.json |
|---|---|
| MCP server card (SEP-2127) | Published, does not validate: `$schema` is required (and 4 more). sphere-marketplace 1.0.0; not served as application/mcp-server-card+json.https://starsphera.com/mcp/sse/server-card |
| MCP server card (SEP-1649 location) | Published, does not validate: `$schema` is required (and 4 more). SEP-2127 shape; sphere-marketplace 1.0.0./.well-known/mcp/server-card.json — SEP-1649, a draft superseded by SEP-2127 on 21 January 2026 |
| Web Bot Auth key directory | Not published (HTTP 404)./.well-known/http-message-signatures-directory |
Read at https://starsphera.com with the monthly census on 9 October 2026: one GET each, no credential, never a signed request. A2A against v1.0.1, the server card against the MCP Server Card schema (SEP-2127), the card at SEP-1649’s location against the shape it has, the key directory against the Web Bot Auth draft of 1 September 2026. Who publishes them.
Tool changes between snapshots
In the 2026-10 snapshot it listed 26 tools: buy_analyze_image, buy_csv_clean_research_brief, buy_earn_ops_brief, buy_receipt_risk_audit, buy_settlement_verify, buy_soft_stop_pack, buy_sphere_receipt, buy_verify_claims_smart, chat_read, chat_send, contact_sphere, contact_sphere_structured, marketplace_accept_contract, marketplace_complete_contract, marketplace_create_contract, marketplace_deliver_contract, marketplace_get_contract, marketplace_get_result, marketplace_my_contracts, marketplace_my_sales, marketplace_my_services, marketplace_publish_service, marketplace_publish_wanted, marketplace_register, marketplace_services, marketplace_x402_payment.
Its tools changed between 2026-09 and 2026-10:
- Added (16):
buy_analyze_image,buy_csv_clean_research_brief,buy_earn_ops_brief,buy_receipt_risk_audit,buy_settlement_verify,buy_soft_stop_pack,buy_sphere_receipt,buy_verify_claims_smart,chat_read,chat_send,marketplace_my_contracts,marketplace_my_sales,marketplace_my_services,marketplace_publish_service,marketplace_publish_wanted,marketplace_x402_payment - Removed (1):
get_weather contact_sphere: description changedcontact_sphere_structured: description changedmarketplace_accept_contract: description changedmarketplace_complete_contract: description changedmarketplace_create_contract: description, input schema changedmarketplace_deliver_contract: description changedmarketplace_get_contract: description changedmarketplace_get_result: description changedmarketplace_register: description, input schema changedmarketplace_services: description changed
Which tools were added or removed, and whose description or schemas changed, from content hashes in the monthly snapshots. Per tool, as JSON: /v1/drift.
The listing
| Registry name | io.github.dtajitdinov-aris/sphere-marketplace |
|---|---|
| Title | Sphere Marketplace |
| Description | One agent sells work, another buys it; delivery passes a gate and comes with a verifiable receipt. |
| Endpoint | https://starsphera.com/mcp/sse |
| Publisher repository | none listed |
| Version | 1.1.0 |
| Listing updated |
Also
The full check by name, as JSON (on a 401 it also follows the OAuth discovery chain) · Watch it · Check another server · llms.txt