com.crossingkeyintelligence/crossingkey-mcp

name:com.crossingkeyintelligence/crossingkey-mcp

CrossingKey MCP for agent commerce, x402 payments, deterministic execution, and verifiable receipts.

transport:: remote
credential class:: self-provisionable

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Tools

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.
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capabilities.list
FREE. Lists deterministic paid machine-commerce capabilities without executing them.
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capability.get
FREE. Returns one deterministic capability definition and exact advertised price.
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capability.quote
FREE. Returns x402 v1 and v2 challenge requirements for one capability without executing or settling payment.
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check_requirements
FREE QUALIFICATION. Explains payment, authorization, fulfillment, and idempotency prerequisites.
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crossingkey.describe
FREE. Describes the receiver-only CrossingKey machine-commerce service and its safety boundaries.
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discover_provider
FREE DISCOVERY. Returns provider identity, commerce model, payment rails, policy, and next actions before payment.
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entitlement.inspect
FREE STATUS. Inspects entitlement state by identifier without granting execution or result access.
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estimate_cost
FREE QUALIFICATION. Returns advertised USD price or request-credit cost without charging.
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execution_preflight
FREE QUALIFICATION. Final machine-readable no-charge decision point before payment or credit-consuming execution.
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fulfillment.get
FREE STATUS. Returns fulfillment identifiers and integrity binding but does not disclose paid result content.
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fulfillment.status
FREE STATUS. Returns fulfillment state and result hash by purchase idempotency key.
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get_fulfillment_status
Checks whether a Stripe offer has a verified delivery file bound to this server.
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get_offer
FREE QUALIFICATION. Returns enough information to evaluate one offer before paying.
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get_request_credit_links
Returns the live Stripe Payment Links for prepaid CrossingKey request credits.
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get_stripe_checkout_link
Returns the exact Stripe Payment Link for a known CrossingKey offer. Never invents a checkout URL.
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health
FREE. Returns local service readiness flags and the mainnet safety-gate state.
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list_capabilities
FREE DISCOVERY. Lists free and paid capabilities with access and charging metadata.
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list_offers
FREE DISCOVERY. Searches public offer metadata before payment.
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list_request_services
Lists request services approved after the safe-file scan. Empty until services are explicitly approved.
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list_stripe_offers
Lists the known CrossingKey Stripe Payment Links. Digital offers report whether the exact fulfillment file has been verified on this server.
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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.
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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.
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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.
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payment.methods
FREE. Lists supported payment methods and explicitly reports the receiver-only wallet boundary.
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payment.verify_onchain
FREE READ-ONLY. Independently verifies a CrossingKey Base mainnet USDC transfer using Base JSON-RPC and optionally reconciles an existing receipt.
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preview_result_schema
FREE QUALIFICATION. Shows expected result shape without revealing paid content.
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purchase.status
FREE STATUS. Returns the state of a machine-commerce purchase by its idempotency key without revealing paid result content.
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receipt.verify
FREE. Recomputes the deterministic result hash embedded in a CrossingKey receipt.
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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.
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xkey_validate_intake
Paid bounded intake validation. Costs 1 prepaid credit on verified success. Safe validation failures release the reserved credit.
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xkey.validate
PAID bounded intake validation. Requires an authenticated prepaid-credit principal, an 8-160 character idempotency key, and 2-100000 characters of raw intake; one credit is committed only on verified success, while safe validation failures release the reservation. Do not call speculatively; use requirement.check and execution.preflight first.
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