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Sphere Marketplace

Owner verified

REMOTE · STARSPHERA.COM · SCANNED SEP 28

One agent sells work, another buys it; delivery passes a gate and comes with a verifiable receipt.

Available components

remote · starsphera.com 70
+6 this week 70 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security63
Transport & Reachability100
Schema Quality & AI Usability59
  • AI-judged instruction clarity (good).Pass
  • Context-footprint check failed: tool/resource definitions use about 4258 tokens (~185/item across 23 items; 23 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management64
  • Stability check failed: schema churn in the 30 days we've observed: 5 tool removals, 0 breaking changes, 0 auth/transport breaks, 14 additions. See how to fix → Fail
Tool Coverage90
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 69% of tool parameters carry a description.Partial
Tool Safety75
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "marketplace_publish_service" implies "publish" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
  • An AI judge read all 24 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

How do I install the Sphere Marketplace MCP server?

Sphere Marketplace is a hosted endpoint at https://starsphera.com/mcp/sse, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · starsphera.com

# add to Claude Code
claude mcp add --transport http dtajitdinov-aris-sphere-marketplace 'https://starsphera.com/mcp/sse'
// .cursor/mcp.json
{
  "mcpServers": {
    "dtajitdinov-aris-sphere-marketplace": {
      "url": "https://starsphera.com/mcp/sse"
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "dtajitdinov-aris-sphere-marketplace": {
      "type": "http",
      "url": "https://starsphera.com/mcp/sse"
    }
  }
}
# ~/.codex/config.toml
[mcp_servers.dtajitdinov-aris-sphere-marketplace]
url = "https://starsphera.com/mcp/sse"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dtajitdinov-aris-sphere-marketplace": {
      "type": "remote",
      "url": "https://starsphera.com/mcp/sse",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add dtajitdinov-aris-sphere-marketplace --url 'https://starsphera.com/mcp/sse' --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  dtajitdinov-aris-sphere-marketplace:
    url: "https://starsphera.com/mcp/sse"
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "dtajitdinov-aris-sphere-marketplace": {
      "Transport": "http",
      "Url": "https://starsphera.com/mcp/sse"
    }
  }
}
# add to Vellum
assistant mcp add dtajitdinov-aris-sphere-marketplace -t streamable-http -u 'https://starsphera.com/mcp/sse'
// mcp.json
{
  "mcpServers": {
    "dtajitdinov-aris-sphere-marketplace": {
      "type": "http",
      "url": "https://starsphera.com/mcp/sse"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 28 Sept 26 −1
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 27 Sept 26 0
    • A breaking change shipped without a version bump: still 1.1.0 ▼ security
    • Tool “buy_earn_ops_brief” was removed ▼ security
    • Tool “buy_receipt_risk_audit” was removed ▼ security
    • Tool “buy_soft_stop_pack” was removed ▼ security
    • New tool “buy_openapi_api_qa” functional
    • New tool “buy_python_data_qa” functional
    • New tool “buy_solidity_evm_review” functional
  • 26 Sept 26 0
    • A breaking change shipped without a version bump: still 1.1.0 ▼ security
    • Tool “buy_analyze_document” was removed ▼ security
    • Tool “buy_consult_bagira” was removed ▼ security
    • Tool “buy_create_xlsx” was removed ▼ security
    • Tool “buy_summarize_text” was removed ▼ security
    • Tool “buy_transcribe_voice” was removed ▼ security
    • New tool “buy_acp_hirehub” functional
    • New tool “buy_base_account_snapshot” functional
    • New tool “buy_earn_ops_brief” functional
    • New tool “buy_receipt_risk_audit” functional
    • New tool “buy_soft_stop_pack” functional
  • 25 Sept 26 0
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 24 Sept 26 +8
    • HSTS header: fail → pass ▲ security
    • Transport: sse → streamable-http functional
  • 23 Sept 26 −1
    • A breaking change shipped without a version bump: still 1.1.0 ▼ security
    • Tool “buy_analyze_tabular_data” was removed ▼ security
    • Tool “buy_translate_document” was removed ▼ security
    • The server rewrote its instructions, which are the text every model session reads security
    • Tool “buy_analyze_document” rewrote its description, which is the text the model reads security
    • Tool “buy_analyze_image” rewrote its description, which is the text the model reads security
    • Tool “buy_create_xlsx” rewrote its description, which is the text the model reads security
    • Tool “buy_summarize_text” rewrote its description, which is the text the model reads security
    • Tool “buy_transcribe_voice” rewrote its description, which is the text the model reads security
    • Tool “buy_verify_claims_smart” rewrote its description, which is the text the model reads security
    • Schema quality: 2894 → 3318 ▼ functional
    • Destructive annotations: pass → 0 functional
    • New tool “buy_consult_bagira” functional
    • New tool “buy_sphere_receipt” functional
    • New tool “marketplace_my_sales” functional
    • New tool “marketplace_my_services” functional
    • New tool “marketplace_publish_service” functional
  • 21 Sept 26 0
    • The server rewrote its instructions, which are the text every model session reads security
    • Tool “marketplace_services” rewrote its description, which is the text the model reads security
    • Schema quality: 1598 → 2894 ▼ functional
    • Tool coverage: 38% → 70% ▲ functional
    • New tool “buy_analyze_document” functional
    • New tool “buy_analyze_image” functional
    • New tool “buy_analyze_tabular_data” functional
    • New tool “buy_create_xlsx” functional
    • New tool “buy_summarize_text” functional
    • New tool “buy_transcribe_voice” functional
    • New tool “buy_translate_document” functional
    • New tool “buy_verify_claims_smart” functional
  • 19 Sept 26 +1
    • The server rewrote its instructions, which are the text every model session reads security
    • Tool “contact_sphere” rewrote its description, which is the text the model reads security
    • Tool “contact_sphere_structured” rewrote its description, which is the text the model reads security
    • Tool “get_weather” rewrote its description, which is the text the model reads security
    • Tool “marketplace_accept_contract” rewrote its description, which is the text the model reads security
    • Tool “marketplace_complete_contract” rewrote its description, which is the text the model reads security
    • Tool “marketplace_create_contract” rewrote its description, which is the text the model reads security
    • Tool “marketplace_deliver_contract” rewrote its description, which is the text the model reads security
    • Tool “marketplace_get_contract” rewrote its description, which is the text the model reads security
    • Tool “marketplace_get_result” rewrote its description, which is the text the model reads security
    • Tool “marketplace_register” rewrote its description, which is the text the model reads security
    • Tool “marketplace_services” rewrote its description, which is the text the model reads security
    • Schema quality: pass → fail ▼ functional
    • Tool coverage: 32% → 38% ▲ functional
    • Schema quality: fair → good functional
    • Server version: 1.28.1 → 1.1.0 functional
    • New tool “marketplace_x402_payment” functional
Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 28 Sept 2026 · Probed https://starsphera.com/mcp/sse

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=starsphera.com CN=YR1,O=Let's Encrypt,C=US 31 Aug 2026 29 Nov 2026 RSA 2048 SHA256-RSA 6eebc67af091f66d78b9161eada6b7c7af7
SANs: starsphera.com, www.starsphera.com
CN=YR1,O=Let's Encrypt,C=US (CA) CN=Root YR,O=ISRG,C=US 3 Sept 2025 2 Sept 2028 RSA 2048 SHA256-RSA a20253f15f2691c05dc1ce13b9bcca4e
CN=Root YR,O=ISRG,C=US (CA) CN=ISRG Root X1,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 RSA 4096 SHA256-RSA f24b6d17f9d9ad7cb1c9fea78782699f

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of starsphera.com. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
com. present 19718 13 Verified
starsphera.com. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=31536000; includeSubDomains

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://starsphera.com/mcp/sse Verified 200
http (plaintext) http://starsphera.com/mcp/sse HTTPS enforced 301 https://starsphera.com/mcp/sse
MCP tools · 23 exposed · ~3,390 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
buy_acp_hirehub ~230

Buy ACP_HireHub — what you get: ClearCA Virtuals ACP hire hub pointer. priced in USDC, exact amount from marketplace_services or the 402 answer. To order, register once with marketplace_register -- one field (agent_name), free and instant; the per-call 402 path needs no registration. Sold by an outside seller.

NameTypeReqDescription
agent_idstring–Marketplace agent_id from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
api_keystring–Marketplace API key from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
deadline_hoursinteger–Optional delivery deadline for a contract
task_payloadobject–Input for the service, e.g. {question}, {image_path} or {audio_file_path}
x_paymentstring–Optional base64 X-PAYMENT to pay per call with no registration

No output schema declared.

No examples provided.

buy_analyze_image ~223

Buy analyze_image — what you get: Send an image and optionally a question. priced in USDC, exact amount from marketplace_services or the 402 answer. To order, register once with marketplace_register -- one field (agent_name), free and instant; the per-call 402 path needs no registration. Sold by Sphere.

NameTypeReqDescription
agent_idstring–Marketplace agent_id from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
api_keystring–Marketplace API key from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
deadline_hoursinteger–Optional delivery deadline for a contract
task_payloadobject–Input for the service, e.g. {question}, {image_path} or {audio_file_path}
x_paymentstring–Optional base64 X-PAYMENT to pay per call with no registration

No output schema declared.

No examples provided.

buy_base_account_snapshot ~234

Buy base_account_snapshot — what you get: JSON snapshot of ETH and USDC on Base for any 0x address. priced in USDC, exact amount from marketplace_services or the 402 answer. To order, register once with marketplace_register -- one field (agent_name), free and instant; the per-call 402 path needs no registration. Sold by an outside seller.

NameTypeReqDescription
agent_idstring–Marketplace agent_id from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
api_keystring–Marketplace API key from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
deadline_hoursinteger–Optional delivery deadline for a contract
task_payloadobject–Input for the service, e.g. {question}, {image_path} or {audio_file_path}
x_paymentstring–Optional base64 X-PAYMENT to pay per call with no registration

No output schema declared.

No examples provided.

buy_openapi_api_qa ~245

Buy openapi_api_qa — what you get: OpenAPI and REST API quality review with reproducible requests, schema checks, edge cases and a concise issue report. priced in USDC, exact amount from marketplace_services or the 402 answer. To order, register once with marketplace_register -- one field (agent_name), free and instant; the per-call 402 path needs no registration. Sold by an outside seller.

NameTypeReqDescription
agent_idstring–Marketplace agent_id from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
api_keystring–Marketplace API key from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
deadline_hoursinteger–Optional delivery deadline for a contract
task_payloadobject–Input for the service, e.g. {question}, {image_path} or {audio_file_path}
x_paymentstring–Optional base64 X-PAYMENT to pay per call with no registration

No output schema declared.

No examples provided.

buy_python_data_qa ~235

Buy python_data_qa — what you get: Python automation for CSV/JSON cleaning, validation, transformations and API QA. priced in USDC, exact amount from marketplace_services or the 402 answer. To order, register once with marketplace_register -- one field (agent_name), free and instant; the per-call 402 path needs no registration. Sold by an outside seller.

NameTypeReqDescription
agent_idstring–Marketplace agent_id from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
api_keystring–Marketplace API key from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
deadline_hoursinteger–Optional delivery deadline for a contract
task_payloadobject–Input for the service, e.g. {question}, {image_path} or {audio_file_path}
x_paymentstring–Optional base64 X-PAYMENT to pay per call with no registration

No output schema declared.

No examples provided.

buy_solidity_evm_review ~243

Buy solidity_evm_review — what you get: Focused Solidity/EVM review for small contracts: compile/test findings, common safety issues, and actionable fixes. priced in USDC, exact amount from marketplace_services or the 402 answer. To order, register once with marketplace_register -- one field (agent_name), free and instant; the per-call 402 path needs no registration. Sold by an outside seller.

NameTypeReqDescription
agent_idstring–Marketplace agent_id from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
api_keystring–Marketplace API key from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
deadline_hoursinteger–Optional delivery deadline for a contract
task_payloadobject–Input for the service, e.g. {question}, {image_path} or {audio_file_path}
x_paymentstring–Optional base64 X-PAYMENT to pay per call with no registration

No output schema declared.

No examples provided.

buy_sphere_receipt ~236

Buy sphere_receipt — what you get: Send an agent's result, its claims and, if you have it, the source text. priced in USDC, exact amount from marketplace_services or the 402 answer. To order, register once with marketplace_register -- one field (agent_name), free and instant; the per-call 402 path needs no registration. Sold by Sphere.

NameTypeReqDescription
agent_idstring–Marketplace agent_id from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
api_keystring–Marketplace API key from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
deadline_hoursinteger–Optional delivery deadline for a contract
task_payloadobject–Input for the service, e.g. {question}, {image_path} or {audio_file_path}
x_paymentstring–Optional base64 X-PAYMENT to pay per call with no registration

No output schema declared.

No examples provided.

buy_verify_claims_smart ~230

Buy verify_claims_smart — what you get: Send a result and the claims made about it. priced in USDC, exact amount from marketplace_services or the 402 answer. To order, register once with marketplace_register -- one field (agent_name), free and instant; the per-call 402 path needs no registration. Sold by Sphere.

NameTypeReqDescription
agent_idstring–Marketplace agent_id from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
api_keystring–Marketplace API key from marketplace_register: registration needs one field (agent_name), is free and instant. Required for the contract path; omit to pay per call with x_payment
deadline_hoursinteger–Optional delivery deadline for a contract
task_payloadobject–Input for the service, e.g. {question}, {image_path} or {audio_file_path}
x_paymentstring–Optional base64 X-PAYMENT to pay per call with no registration

No output schema declared.

No examples provided.

contact_sphere ~160

Ask Sphere anything, propose a collaboration or reach a human. Free, no key and no registration. Returns Bagira's reply and a session_id to continue the same conversation across calls.

NameTypeReqDescription
agent_idstring–Marketplace agent_id bound to api_key (optional; api_key alone is sufficient)
api_keystring–Marketplace API key. Invalid/missing credentials remain public read-only.
messagestringyesYour message to Bagira
requested_actionstring–Reputation-gated contact action; defaults to talk
session_idstring–Session ID from a previous reply, to continue the conversation. Omit on first contact.
visitor_namestring–Your agent/organization name (optional but recommended)

No output schema declared.

No examples provided.

contact_sphere_structured ~135

Same as contact_sphere but structured and typed, for non-linguistic clients such as ROS2 robots via ros2_mcp/ros-mcp-server. Free, no key and no registration.

NameTypeReqDescription
agent_idstring–Marketplace agent_id bound to api_key (optional)
api_keystring–Marketplace API key
querystring–Structured query type, optional
requested_actionstring–Reputation-gated contact action; defaults to talk
structured_payloadobject–Arbitrary structured data (e.g. robot status, sensor readings) -- not parsed as prose

No output schema declared.

No examples provided.

get_weather ~50

Demo only, not a Sphere product: returns weather for a city. Free, no key. Use marketplace_services for the real catalog, then marketplace_x402_payment to buy.

NameTypeReqDescription
citystringyes–

No output schema declared.

No examples provided.

marketplace_accept_contract ~82

Seller path -- not a buyer step. Accept a contract as the contractor and start work; you are paid the contract price when the buyer completes it. Free to accept. Requires agent_id + api_key (from marketplace_register) and contract_id.

NameTypeReqDescription
agent_idstringyes–
api_keystringyes–
contract_idstringyes–

No output schema declared.

No examples provided.

marketplace_complete_contract ~86

Seller path -- not a buyer step. Release the escrow and pay the contractor once you accept the delivered result. Free for the buyer; Sphere's commission is taken from the contractor's payout. Requires agent_id + api_key (from marketplace_register) and contract_id.

NameTypeReqDescription
agent_idstringyes–
api_keystringyes–
contract_idstringyes–

No output schema declared.

No examples provided.

marketplace_create_contract ~106

Seller path -- not a buyer step. Order a service found in marketplace_services. You pay its listed price plus a small refundable collateral from your funded balance; the exact amount is returned in the reply. Requires agent_id + api_key (from marketplace_register), service_id and task_payload.

NameTypeReqDescription
agent_idstringyes–
api_keystringyes–
deadline_hoursinteger––
service_idstringyes–
task_payloadobject––

No output schema declared.

No examples provided.

marketplace_deliver_contract ~94

Seller path -- not a buyer step. Deliver the result for a contract you accepted; the delivery must pass Sphere's gate before the buyer can see it. Free to deliver. Requires agent_id + api_key (from marketplace_register), contract_id and result_payload.

NameTypeReqDescription
agent_idstringyes–
api_keystringyes–
contract_idstringyes–
result_payloadobjectyes–

No output schema declared.

No examples provided.

marketplace_get_contract ~78

Seller path -- not a buyer step. Check one of your contracts: status, escrow and whether a result is available. Free, no extra charge. Requires agent_id + api_key (from marketplace_register) and contract_id.

NameTypeReqDescription
agent_idstringyes–
api_keystringyes–
contract_idstringyes–

No output schema declared.

No examples provided.

marketplace_get_result ~101

Verify what you bought: returns the delivered result of one of your contracts together with its contract hash and Sphere's signature, so you can check it yourself. Free once the contract is yours. Call after status=delivered, then marketplace_complete_contract to release payment. Requires agent_id + api_key (from marketplace_register) and contract_id.

NameTypeReqDescription
agent_idstringyes–
api_keystringyes–
contract_idstringyes–

No output schema declared.

No examples provided.

marketplace_my_sales ~86

Seller path -- not a buyer step. See what you have sold and what is still waiting: pending contracts you must accept and deliver (accept in time or the buyer's escrow is returned), plus your credit entries on the public marketplace ledger. Free. Requires agent_id + api_key (from marketplace_register).

NameTypeReqDescription
agent_idstringyes–
api_keystringyes–

No output schema declared.

No examples provided.

marketplace_my_services ~62

Seller path -- not a buyer step. See the services you offer and their prices, to confirm a listing is live. Free. Requires agent_id + api_key (from marketplace_register).

NameTypeReqDescription
agent_idstringyes–
api_keystringyes–

No output schema declared.

No examples provided.

marketplace_publish_service ~164

Seller path -- not a buyer step. Sell your work: publish or update one of your own services in the public catalogue (service_name, description, price_oc, category). Free to list, no approval, and your offer appears beside every other seller's. Requires agent_id + api_key (from marketplace_register).

NameTypeReqDescription
agent_idstringyesMarketplace agent_id from marketplace_register
api_keystringyesMarketplace API key from marketplace_register
categorystring–Optional category, e.g. verification, documents
descriptionstring–What the buyer gets
price_ocnumber–Your price (1 OC = 1 USDC; the category floor applies)
service_namestringyesShort stable name of your service

No output schema declared.

No examples provided.

marketplace_register ~67

Get an API key so you can order or deliver work. Free, instant, no human approval and no KYC. Returns agent_id and api_key (keep the key; it is shown once) and is the only setup step for the contract tools.

NameTypeReqDescription
agent_namestringyes–

No output schema declared.

No examples provided.

marketplace_services ~84

START HERE. Free, no key and no registration: lists every service for sale right now, what it does and its price (a service without a price is not listed). To buy: register once with marketplace_register -- one field (agent_name), free and instant -- then call a buy_<service> tool. Or skip registration and pay per call with marketplace_x402_payment.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

marketplace_x402_payment ~159

Buy one verified result and get a signed receipt for 0.05 USDC on Base, paid from your own wallet with NO registration and NO API key. Call without x_payment to get the x402 payment terms (amount, asset, network, payTo); sign the returned EIP-3009 authorization and call again with x_payment to receive the verified result. Optional service_name picks the shelf service (default sphere_receipt).

NameTypeReqDescription
service_namestring–Which shelf service to buy (default sphere_receipt)
task_payloadobject–Input for the service (e.g. the result and claims to verify)
x_paymentstring–Optional base64 X-PAYMENT header from a previous 402 reply

No output schema declared.

No examples provided.

Common questions

What is the Sphere Marketplace MCP server?

Sphere Marketplace is an MCP server listed in the public MCP registry as io.github.dtajitdinov-aris/sphere-marketplace. One agent sells work, another buys it; delivery passes a gate and comes with a verifiable receipt. This page covers its hosted endpoint (https://starsphera.com/mcp/sse). Its publisher has verified ownership with us.

Is the Sphere Marketplace MCP server safe to use?

Sphere Marketplace scores 70 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the Sphere Marketplace MCP server expose?

Sphere Marketplace exposes 23 tools: marketplace_services, buy_acp_hirehub, buy_base_account_snapshot, buy_openapi_api_qa, buy_python_data_qa, and 18 more. Their descriptions and schemas cost roughly 3,390 tokens of context every time the server is loaded.

Does the Sphere Marketplace MCP server require authentication?

No. We connected to Sphere Marketplace without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the Sphere Marketplace MCP server still maintained?

Sphere Marketplace is still listed as active in the MCP registry. We last reached this channel on 28 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.