generated: '2026-09-18' method: derived source: openapi/cables-openapi.yml + live MCP server + x402 payment metadata standards: - id: mcp conforms: true evidence: Live MCP server (protocolVersion 2025-06-18, streamable HTTP) — initialize + tools/list verified anonymously at https://mcp.cables.live/mcp - id: x402 conforms: true evidence: Every operation carries x-payment-info (scheme exact, Solana devnet USDC); unpaid calls return HTTP 402 with a Base64 x402 PaymentRequired header - id: openapi-3.0 conforms: true evidence: 'openapi: 3.0.0, 168 paths, 174 component schemas — validates as OpenAPI 3.0' - id: oauth2 conforms: false - id: oidc conforms: false - id: rfc9457-problem-details conforms: false evidence: errors use a custom {error,code} envelope, not application/problem+json domain_standard: id: x402 declared_in: openapi paths[].post.x-payment-info note: x402 is the emerging agentic pay-per-call standard; this provider declares it machine-readably per operation.