openapi: 3.2.0 info: title: CONNSKILL Growth Services Payments API version: 3.0.0 description: 'Search research for AI agents: Local Market Check packages, domain ranking snapshots and keyword demand data.' termsOfService: https://agent.connskill.com/pricing contact: email: info@connskill.com x-logo: url: https://agent.connskill.com/icon.png altText: CONNSKILL logo: https://agent.connskill.com/icon.png icon: https://agent.connskill.com/icon.png x-guidance: Read the free discovery, input and quote routes first. Paid operations return an x402 challenge carrying the exact amount, asset, network and recipient. Prices can vary with selected tier, inputs or usage; use the actual challenge before approving payment. Support is free and uses a separate wallet ownership signature. Preserve the original request and payment proof for redelivery; never pay again for an unresolved purchase. x-trust: operator: CONNSKILL GmbH & Co. KG jurisdiction: Germany (EU) contact: info@connskill.com auth: No account or API key. Manual first purchases and private redelivery require a free Sign-In-With-X wallet proof from POST /v1/payments/challenge. payment: x402 v2, USDC on Base (eip155:8453), pay-per-call to 0x43B85AE58f0A2505c710Bc715d6f3EB16b1f63dE idempotency: A fresh wallet proof bound to the exact original request and payment references can retrieve its retained private result without another payment. redelivery: Private redelivery only reads a retained result. A missing result or uncertain purchase remains held for wallet support; it never starts another provider order. refund: On-chain settlement is technically final. This does not exclude statutory claims. Invalid input is rejected before settlement; failed delivery must be resolved through the delivery policy and support. unclearState: If a purchase times out and we cannot tell whether the provider charged us, you get HTTP 504 with stateUnclear — so you never blindly re-order. timeouts: No uptime SLA. Every outbound call has a timeout (provider 20s, DataForSEO 45s, purchase 60s); the gateway hard-caps at 90s and returns 504 rather than hanging. rateLimit: Paid service calls have no per-caller rate limit. Wallet challenges have bounded capacity and can return 429. Request size limits apply. We never log your IP; only technical metadata such as User-Agent and Referer. discovery: https://agent.connskill.com/openapi.json · https://agent.connskill.com/.well-known/x402 · https://agent.connskill.com/llms.txt · https://agent.connskill.com/pricing tags: - name: Payments paths: /v1/payments/challenge: post: operationId: paymentWalletChallenge summary: Create a free wallet proof for a manual purchase or private redelivery tags: - Payments x-free: true x-mcp-exclude: true security: [] description: Bind one EOA wallet signature to the purpose, payment references, configured merchant, token, network, service, exact public POST URL and complete JSON body. Standard-x402 first purchases keep their existing payment flow. Both wallet-proof paths require a complete JSON body and only ref query parameters; resolve unsupported requests before paying. Private redelivery is free, requires a fresh proof for each attempt and only reads retained results. Missing results return 409 at the target request and require wallet support; no new provider order is created. requestBody: required: true content: application/json: schema: type: object additionalProperties: false required: - purpose - address - request properties: purpose: type: string enum: - purchase - redelivery address: type: string pattern: ^0x[0-9a-fA-F]{40}$ request: type: object additionalProperties: false required: - method - url - headers - body properties: method: type: string enum: - POST url: type: string description: Exact public path including mount. Only ref query parameters are accepted; preserve their original order and percent-encoded bytes. Check this contract before paying. headers: type: object additionalProperties: false properties: x-payment-tx: type: string payment-signature: type: string x-payment: type: string description: The exact target payment-reference headers. Purchase requires only x-payment-tx. Redelivery may use a nonce-only base64 payload.authorization.nonce reference; no new spending authorization is needed. body: description: The complete target JSON body, with no omitted or replaced fields. responses: '200': description: Free challenge; no funds moved '400': description: Malformed request or unsupported target '403': description: Purpose not allowed for target '405': description: Use POST '408': description: Request body timed out '413': description: Request too large '415': description: Use uncompressed UTF-8 JSON '429': description: Challenge rate limit '503': description: Wallet authentication unavailable; no access granted components: securitySchemes: signInWithX: type: apiKey in: header name: Sign-In-With-X description: Base64 JSON containing the exact challenge fields, checksummed address, chainId eip155:8453, type eip191 and EIP-191 signature. Free authentication, not payment. One use, five minutes, bound to method, path and JSON body. x-discovery: ownershipProofs: - '0x4b92ee6ef3357beddfb6b0d39fbe8be660a934bde8a226539a16a0ea414768394cdc20d14f025c6bf5a630e99eafe177a742d81b4c16d2933cd1c2f85e708cbb1b' support: title: Wallet support url: /v1/support/policy authentication: sign-in-with-x network: eip155:8453 paid: false description: Free, private support for settled purchases. A short-lived wallet signature proves ownership; never pay again merely to open a case. endpoints: - url: /v1/support/policy method: GET - url: /v1/support/challenge method: POST - url: /v1/support/tickets method: GET - url: /v1/support/tickets method: POST - url: /v1/support/tickets/{ticketId} method: GET - url: /v1/support/tickets/{ticketId}/checkout method: POST - url: /v1/support/tickets/{ticketId}/discount method: POST serviceSearch: endpoint: /v1/service-search method: GET requiresPayment: false querySentToSources: false exhaustiveMarket: false sources: - connskill-directory - cdp-bazaar description: Free local search of bounded cached catalogues. Source coverage, age and failures are explicit; unknown units are not price-ranked. x-support: title: Wallet support url: /v1/support/policy authentication: sign-in-with-x network: eip155:8453 paid: false description: Free, private support for settled purchases. A short-lived wallet signature proves ownership; never pay again merely to open a case. endpoints: - url: /v1/support/policy method: GET - url: /v1/support/challenge method: POST - url: /v1/support/tickets method: GET - url: /v1/support/tickets method: POST - url: /v1/support/tickets/{ticketId} method: GET - url: /v1/support/tickets/{ticketId}/checkout method: POST - url: /v1/support/tickets/{ticketId}/discount method: POST