Agent-native MCP for governed commerce, x402 payments, paid capabilities, and verifiable receipts.
Listed on
- Official MCP Registry
- Glamavia MCP Toplist
First seen 2 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
2
Directories
1 via MCP Toplist
21
Tools
From an anonymous probe
-
ToolBench grade
Not graded by Arcade
0
GitHub stars
From MCP Toplist
Tools
| Tool | Description | Behaviour |
|---|---|---|
| artifact.integrity_manifest | PAID $0.10 USDC on Base via x402. Creates deterministic SHA-256 entries and a root manifest hash for supplied text artifacts. Calling this MCP tool does not spend funds; it returns the exact PAYMENT-REQUIRED challenge and canonical paid execution endpoint. | Changes data |
| capability.get | FREE. Use name for legacy deterministic capability metadata or capabilityId for public marketplace metadata, rights and provenance. | Read-only |
| capability.search | FREE MARKETPLACE FILTERED DISCOVERY ONLY. Search active public marketplace capabilities when one or more filters are known: text, category, provider, delivery type, or price. Metadata is free; purchased execution and deliverables are not. Do NOT use for unfiltered browsing; use catalog.list. Do NOT use for CrossingKey digital/service offers; use offers.list. For one exact capabilityId use capability.get. | Read-only |
| catalog.list | FREE MARKETPLACE UNFILTERED DISCOVERY ONLY. Page through active public marketplace capabilities when no search filters are needed. Metadata is free; execution, entitlement, delivery, and purchased output remain gated. Do NOT use for filtered discovery; use capability.search. Do NOT use for CrossingKey digital/service offers; use offers.list. For one exact capabilityId use capability.get. | Read-only |
| commerce.quote | FREE MARKETPLACE PAYMENT QUOTE ONLY. After selecting an active marketplace capabilityId, return authoritative gross price, CrossingKey fee, provider share, and x402 v1/v2 payment requirements. A quote grants no entitlement and performs no execution. Do NOT use for first-party paid capabilities; use cost.estimate (first-party x402 capabilities have fixed catalog prices and no quote stage). Do NOT use for generic price lookup; use cost.estimate. Paid marketplace execution requires capability.purchase with authorization and verified payment. | Read-only |
| cost.estimate | FREE read-only cost estimate. This tool never creates checkout, reserves funds, or contacts a facilitator. | Read-only |
| creator.apply | FREE WRITE. Private creator intake for assets needing a capability model. No ownership transfer and AI training defaults false. | Destructive |
| credits.options | FREE read-only prepaid request-credit pack options. Lists available credit packs with identifiers and credit amounts. Purchasing happens via checkout; this tool never starts payment or creates accounts. | Read-only |
| execution.preflight | FREE read-only execution preflight. Returns READY_FOR_HUMAN_AUTHORIZATION only; it never authorizes, purchases, settles, executes, or creates records. | Read-only |
| machine_commerce.readiness_audit | PAID $2.00 USDC on Base via x402. Checks machine-commerce discovery and health surfaces. Calling this MCP tool does not spend funds; it returns the exact PAYMENT-REQUIRED challenge and canonical paid execution endpoint. | Changes data |
| marketplace.describe | FREE, read-only marketplace overview. Use this first for marketplace-specific capability commerce, fee policy, creator rights, payment rails, and active catalog counts; use provider.describe for the broader CrossingKey provider and legacy offer surface. | Read-only |
| mcp.schema_audit | PAID $1.00 USDC on Base via x402. Scores supplied MCP tool schemas for discoverability, descriptions, and bounded input contracts. Calling this MCP tool does not spend funds; it returns the exact PAYMENT-REQUIRED challenge and canonical paid execution endpoint. | Changes data |
| offers.list | FREE read-only public offer and capability discovery. This tool never starts payment or execution. | Read-only |
| openapi.quality_audit | PAID $1.00 USDC on Base via x402. Evaluates structural quality and required fields in an OpenAPI document. Calling this MCP tool does not spend funds; it returns the exact PAYMENT-REQUIRED challenge and canonical paid execution endpoint. | Changes data |
| provider.describe | FREE read-only provider and commerce policy discovery. Use this before selecting an offer or capability. | Read-only |
| provider.get | FREE. Public active provider metadata. Pending applications require owner or administrator authorization. | Read-only |
| provider.register | FREE public intake. Submit a pending marketplace provider application; this creates no credential, approval, payment, ownership transfer, or active capability. Use creator.apply instead when submitting an asset or body of work that still needs a capability model. | Destructive |
| requirements.check | FREE read-only requirements check. This tool never authorizes or starts payment or execution. | Read-only |
| result.preview | FREE read-only result-shape preview. This tool never executes a capability or creates an entitlement or receipt. | Read-only |
| x402.compatibility_audit | PAID $1.00 USDC on Base via x402. Audits an x402 endpoint for v1/v2 compatibility defects. Calling this MCP tool does not spend funds; it returns the exact PAYMENT-REQUIRED challenge and canonical paid execution endpoint. | Changes data |
| xkey.validate | PAID prepaid-credit XKEY intake validation. Requires an authenticated ck_ principal and commits one credit only on verified success. Discovery is free; execution is not. | Changes data |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | CrossingKey MCP | - | 2 Oct 2026 |
| Glama | Listed there according to MCP Toplist’s dataset; not collected by InvokeRank. | ||