app.heinrichstech.com publishes 7 machine-payable endpoints over the x402 protocol, priced from $0.001 to $0.01 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /v1/cdp/chain/erc20-balance | GET | $0.003 | 402 |
| /v1/cdp/echo | GET | $0.001 | 402 |
| /v1/cdp/json-repair | POST | $0.005 | 402 |
| /v1/cdp/pii-redact | POST | $0.008 | 402 |
| /v1/cdp/regex-test | POST | $0.005 | 402 |
| /v1/cdp/webhook-sig-verify | POST | $0.005 | 402 |
| /v1/cdp/whois | POST | $0.01 | 402 |
ERC-20 token balance for any wallet — USDC, USDT, DAI, or any token contract — via balanceOf eth_call, with decimals applied. Ethereum or Base mainnet. Pay 0.003 USDC.
BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP Facilitator + Bazaar discovery loop.
BitBooth JSON Repair: take any almost-JSON string (LLM tool output, broken API response, etc.), fix the common errors (trailing commas, single quotes, unquoted keys, missing brackets), and optionally …
BitBooth PII Redact: pay 0.002 USDC, strip emails, phones, SSNs, credit cards, IPv4 addresses, and hex-looking secrets from a text blob before passing it to an LLM. Compliance primitive for agents in …
BitBooth Regex Test: pay 0.001 USDC, safely compile and run a regex against a corpus. Returns structured matches with capture groups, indices, and lengths. JS engine flags (g, i, m, s, u, y, d). Hard …
BitBooth Webhook Signature Verify: pay 0.001 USDC, verify a webhook signature against the provider's canonical HMAC scheme. Supports stripe, github, vercel, cdp, slack, and generic HMAC-SHA256. Consta…
BitBooth Whois: pay 0.005 USDC, get the parsed whois record for any domain — registrar, creation/updated/expiry dates, name servers, status flags, plus the raw whois text. Two-hop resolution via whois…