CrossingKey MCP

com.crossingkeyintelligence/crossingkey-mcp · v3.0.1 · crypto-web3

CrossingKey MCP is healthy: it completed an MCP handshake in 3104 ms and exposes 26 tools. It scores 62/100.

Agent-native MCP for governed commerce, x402 payments, paid capabilities, and verifiable receipts.

Endpoint: https://mcp.crossingkeyintelligence.com/mcp (streamable-http)

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Score 62/100

health17 / 25
authEase15 / 15
toolQuality15 / 15
maintenance7 / 15
adoption0 / 10
usage0 / 10
security8 / 10

Scoring v0.3, computed 2026-10-15T02:31:07.894Z.

Health history

Checked (UTC)StatusLatencyError
2026-10-14T18:50:39.853ZHealthy3104

Tools (26)

marketplace.describeFREE, 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.
provider.applyFREE public application intake. Always pending, never creates credentials or active capabilities.
provider.getFREE. Public active provider metadata. Pending applications require owner or administrator authorization.
capability.getFREE. Use name for legacy deterministic capability metadata or capabilityId for public marketplace metadata, rights and provenance.
capability.searchFREE 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
catalog.listFREE 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 CrossingK
commerce.quoteFREE 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
creator.applyFREE WRITE. Private creator intake for assets needing a capability model. No ownership transfer and AI training defaults false.
provider.describeFREE read-only provider and commerce policy discovery. Use this before selecting an offer or capability.
offers.listFREE read-only public offer and capability discovery. This tool never starts payment or execution.
requirements.checkFREE read-only requirements check. This tool never authorizes or starts payment or execution.
cost.estimateFREE read-only cost estimate. This tool never creates checkout, reserves funds, or contacts a facilitator.
result.previewFREE read-only result-shape preview. This tool never executes a capability or creates an entitlement or receipt.
execution.preflightFREE read-only execution preflight. Returns READY_FOR_HUMAN_AUTHORIZATION only; it never authorizes, purchases, settles, executes, or creates records.
credits.optionsFREE 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.
x402.compatibility_auditPAID $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.
mcp.schema_auditPAID $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.
openapi.quality_auditPAID $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.
machine_commerce.readiness_auditPAID $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.
artifact.integrity_manifestPAID $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.
hash.encodePAID $0.01 USDC on Base via x402. Computes a SHA-256 digest and UTF-8 byte count for supplied text. Calling this MCP tool returns a payment challenge and does not autonomously spend funds.
secret.scanPAID $0.01 USDC on Base via x402. Detects selected credential patterns and returns classifications and positions, not matched values. Heuristic, not comprehensive. Calling this MCP tool returns a payment challenge and does not autonomously spend funds.
pii.scanPAID $0.01 USDC on Base via x402. Detects selected personal-data patterns and returns classifications and positions, not matched values. Heuristic, not comprehensive. Calling this MCP tool returns a payment challenge and does not autonomously spend funds.
json.repairPAID $0.01 USDC on Base via x402. Validates JSON and repairs a limited set of formatting errors. May return supplied content. Calling this MCP tool returns a payment challenge and does not autonomously spend funds.
prompt.auditPAID $0.01 USDC on Base via x402. Scores selected prompt structure signals using deterministic heuristics. Calling this MCP tool returns a payment challenge and does not autonomously spend funds.
xkey.validatePAID prepaid-credit XKEY intake validation. Requires an authenticated ck_ principal and commits one credit only on verified success. Discovery is free; execution is not.