com.crossingkeyintelligence/crossingkey-mcp
com.crossingkeyintelligence/crossingkey-mcp · v2.3.0 · MCP 2025-11-25
CrossingKey MCP for agent commerce, x402 payments, deterministic execution, and verifiable receipts.
Reachability
error
checked 2026-09-20 05:31 UTC
Registry status active
Tools pinned 18
0552cf7725b5
Tools last changed
2026-09-19
Provenance
Registry namespace com.crossingkeyintelligence
(domain verified by the official registry)
Remote endpoints
https://mcp.crossingkeyintelligence.com/mcp (streamable-http)
Observed changes
| When (UTC) | Event | Detail |
|---|---|---|
| 2026-09-19 05:31 | tools changed | 10 added, 15 removed, 3 changed |
| 2026-09-18 05:30 | tools changed | 0 added, 3 removed, 23 changed |
| 2026-09-16 05:30 | first capture | 26 tools pinned |
Pinned tool definitions (18)
| Tool | Description |
|---|---|
| provider.describe | FREE, read-only provider discovery. Use this first to learn CrossingKey identity, commerce model, payment rails, authority boundaries, and recommended next actions; it never creates a payment or executes paid work. For offer-specific... |
| offers.list | FREE, read-only canonical offer search. Use this to find public digital or service offers by query, kind, or maximum USD price before payment; it returns metadata only and creates no checkout session. Use capability.get only for x402... |
| cost.estimate | FREE, read-only cross-domain price lookup. Supply an offer or capability identifier to return the currently advertised USD price or request-credit cost; no payment, reservation, or credit consumption occurs. For x402 challenge terms use... |
| result.preview | FREE, read-only result preview. Supply an offer or capability identifier to see the expected fulfillment or output shape without exposing paid content or executing work. Use this after offers.list or capabilities.list when an agent... |
| requirements.check | FREE, read-only prerequisite check. Supply an offer or capability identifier to receive payment, authorization, fulfillment, and idempotency requirements without creating a payment. Use execution.preflight for the final machine-readable... |
| execution.preflight | FREE, read-only final preflight before any paid action. Supply an offer or capability identifier to receive payment method, exact advertised price, readiness, safety warnings, and next action; this tool never charges or executes. Call... |
| credits.options | FREE, read-only prepaid-credit purchase discovery. Returns available request-credit packs and their existing Stripe Payment Links; it does not open a checkout session or spend funds. Use this only when prepaid request credits are the... |
| services.list | FREE, read-only service catalog. Returns only request services explicitly approved by the server's safety process and may legitimately be empty; it creates no order or payment. Use this when evaluating approved request-service availability. |
| capabilities.list | FREE, read-only x402 capability list. Use this only for deterministic machine-commerce capabilities priced for x402 execution; it does not list the full CrossingKey offer/service catalog and never executes a capability. For public... |
| capability.get | FREE, read-only x402 capability detail lookup. Supply the exact capability name returned by capabilities.list to receive one deterministic capability definition and advertised price; no payment or execution occurs. Use capability.quote... |
| capability.quote | FREE, read-only x402 quote/challenge lookup. Supply the exact capability name returned by capabilities.list to receive v1 and v2 payment requirements without execution or settlement. Use capability.get for metadata only and... |
| payment.methods | FREE, read-only payment-rail discovery. Returns supported Stripe, prepaid-credit, and x402 rails plus the receiver-only wallet authority boundary; it never signs or spends. Use this when selecting a payment rail before any authorization step. |
| purchase.status | FREE, read-only x402 purchase-status lookup. Supply the original idempotency key to retrieve purchase state and integrity identifiers without revealing paid result content or changing state. The response includes purchase, entitlement,... |
| entitlement.inspect | FREE, read-only entitlement inspection. Supply a CrossingKey entitlement identifier to return current entitlement state without granting execution, download access, or paid result content. Use purchase.status when only an idempotency... |
| receipt.verify | FREE, read-only receipt integrity verification. Supply a CrossingKey receipt object to recompute and compare its deterministic result hash; this performs no payment, entitlement mutation, or network settlement. A true result verifies... |
| health | FREE, read-only MCP readiness check. Returns service, Stripe, machine-commerce, mainnet-gate, and receiver-only wallet readiness flags without contacting payment rails or changing state. Use this for operational readiness, not purchase status. |
| payment.verify | FREE, read-only Base USDC verification. Provide a Base transaction hash, a CrossingKey receipt ID, or both to verify the receiver transfer and optionally reconcile an existing receipt; it never signs, sends, settles, swaps, bridges, or... |
| 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... |
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