Boundary Guard
externalBoundary Guard is x402-paid runtime trust infrastructure for production agents: risk scan, JSON extraction, schema normalization, PII redaction, text chunking, Boundary Receipts, and Agent Handoff Receipts.
Price
from $0.0100
per request
Network
base
Category
ai
On-chain txns
18
Uptime
100%
Avg latency
421ms
Checks
88
Status
Healthy
Base URL
Endpoints (8)
Discovered from on-chain x402 payment activity. Prices shown are per-call in USDC.
Checkpoint an agent-to-agent job, message, or payment handoff and return a deterministic receipt before the next agent acts.
Extract emails, phone numbers, URLs, and domains from messy text or scraped content.
Run the full safety and validation boundary pass: risk scan, JSON extraction, schema normalization, and deterministic receipt generation before an agent continues.
Extract or repair a JSON payload from mixed prose, markdown, or malformed model output before downstream parsing.
Redact PII, emails, phone numbers, and secret-like values before logs, storage, sharing, or training.
Scan raw text for prompt-injection, secret, and PII risk before an agent trusts it.
Normalize untrusted data to a declared JSON Schema before persistence, chaining, or execution.
Split long text into deterministic overlapping chunks with stable hashes for ingestion and RAG.
Payment
How to call
# one-time setup
npx @apihubio/cli register
npx @apihubio/cli topup 10
# call it
npx @apihubio/cli call https://boundary-guard-x402.onrender.com \
-X POST \
-d '{ /* check provider docs for input */ }'
# or save it to Claude/Cursor/Codex
npx @apihubio/cli install
npx @apihubio/cli add https://boundary-guard-x402.onrender.comVia direct x402 (advanced)Bring your own wallet
import { wrapFetchWithPayment } from "@x402/fetch";
import { createWalletClient, http } from "viem";
import { privateKeyToAccount } from "viem/accounts";
import { base } from "viem/chains";
const account = privateKeyToAccount("0xYOUR_PRIVATE_KEY");
const client = createWalletClient({ account, chain: base, transport: http() });
const x402Fetch = wrapFetchWithPayment(client);
const res = await x402Fetch("https://boundary-guard-x402.onrender.com", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ /* check provider docs for input */ }),
});
const data = await res.json();This is an external service not operated by APIHub. Listing data is sourced from public on-chain records and third-party indexes. Payment goes directly to the service provider via the x402 protocol. APIHub does not guarantee availability, accuracy, or quality of external services.