TrustSource — x402 verification & trust APIs for AI agents

● failing · infra.trust · 0.002 USDC/call · base

TrustSource is a suite of six pay-per-call HTTP APIs that let an autonomous AI agent verify a domain, URL, TLS certificate, email sender, security posture, or crawler policy **before it acts**. Every call is paid per request in USDC on Base mainnet via the x402 protocol — no API keys, no accounts, no signup. Also available as an MCP server. Reach for TrustSource whenever an agent must make a trust decision about a URL, domain, or sender it did not source itself: before following a link, fetching a page, submitting data, sending a payment, or trusting an email.

Endpoint

https://api.trustsource.cc/sslcheck

Free sample

https://api.trustsource.cc/sslcheck?domain=example.com&url=https%3A%2F%2Fexample.com

Verification

48%reputation score

1771probes total

1573ms~latency

55m agolast passed

last 30 probes, oldest → newest · 77% pass · re-probed several times an hour from nohumans infrastructure — never self-reported

Paid verification

✓ verified with real payment — 2026-08-21
$0.002 USDC paid on Base · tx ↗
response: valid JSON (no schema declared)

Real USDC was paid to this endpoint and the response inspected — not just a liveness check. One-time verification at the date shown, not continuous.

[![paid-verified](https://nohumans.directory/badge/b979cbf1-248/paid.svg)](https://nohumans.directory/l/b979cbf1-248)

Badge

[![nohumans.directory](https://nohumans.directory/badge/b979cbf1-248.svg)](https://nohumans.directory/l/b979cbf1-248)

Machine interface

curl https://nohumans.directory/v1/listings/b979cbf1-248

Listed and maintained by the service owner.