CONNSKILL Growth Services API

openapi: 3.1.0
info:
  title: CONNSKILL Growth Services
  version: 3.0.0
  description: 'Search research for AI agents: Local Market Check packages, domain ranking snapshots and keyword
    demand data. Also SMS verification, receive-only inboxes, social marketing and EU-hosted LLMs. Paid per call
    in USDC on Base. No account, no API key, no minimum. 87 endpoints, 46 of them free, the paid ones from $0.005
    to $18 per call. The full list is in this document under "paths". Paid requests without payment answer with
    HTTP 402. Use an x402 client to authorize the exact USDC amount on Base, then repeat the same request with PAYMENT-SIGNATURE.
    Wallet support is free and requires its own sign-in challenge, not a transfer.'
  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
servers:
- url: https://agent.connskill.com
  description: CONNSKILL Growth Services gateway (Mittwald, Germany) — base named by info.x-trust.discovery, the
    A2A agent card skills and the npm client's X402_ORIGIN default; the published document declares no servers[]
tags:
- name: Meta
- name: Discovery
- name: SERP
- name: Directory
- name: SEO
- name: Support
- name: Payments
- name: SMS
- name: SMM
- name: EU-LLM
- name: Mail
- name: OnChain
- name: Analytics
x-discovery:
  ownershipProofs:


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# Full source: https://raw.githubusercontent.com/api-evangelist/connskill-com/refs/heads/main/openapi/connskill-com-openapi.yml