Contact us
The quickest way to reach us is email. Pick the topic that fits and your email opens with the subject filled in.
Technical support
Webhooks that don't fire, deliveries that fail, API errors, or signatures that won't verify.
Include the webhook or delivery ID, the network, and the transaction hash if you have one.
Email usBilling and account
Your plan, invoices, overage charges, refunds, or changes to your account.
Write from the email address on your account so we can find it quickly.
Email usLimits and networks
Ask for more active webhooks than your plan includes, or about a network or token we don't support yet.
Tell us roughly how many addresses you need to watch, or which network and token contract you need.
Email usSecurity
Report a vulnerability in Chainhook privately.
Describe the issue and how to reproduce it, and give us a reasonable chance to fix it before you share it publicly.
Email usBefore you write
Many questions are answered in the docs and policies.
- API reference
Endpoints, error codes, and rate limits.
- Receiving webhooks
Payload format, signature checks, and retries.
- Supported networks
Networks, tokens, and confirmation depths.
- Refund policy
Cancellations, billing mistakes, and refunds.