402xAgent bronze

402xagent.com

“Check an x402 endpoint before your agent pays: pay, skip or recheck, with Ed25519-signed receipts.

https://402xagent.com/.well-known/agent-card.json its card

Checked 5d ago extendedAgentCard, pushNotifications, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Google Trust Services domain-validated
Valid until 8 Jan 2027 as of our check on 9 Nov 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.

Control of the hostname was checked; nothing about who operates it.

Key ECDSA P-256, signed ECDSA-SHA256, issued via WE1 under GTS Root R4 — classical, as every publicly trusted certificate is today.

Names on this certificate (3)

402xagent.com, api.402xagent.com, *.api.402xagent.com.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 9 Nov 2026. What this means
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
AI-facing documents: Publishes /llms.txt — “402xAgent + x402 Verified Catalog” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 9 Nov 2026

View verification details

Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: ? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked: 5d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of 402xagent.com controls every word below.

Free x402 pre-payment check

GET https://api.402xagent.com/v1/products/endpoint-spot-check?url=<endpoint> probes a public x402 endpoint once without paying it and answers pay, skip or recheck with a stable reason_code, the price quoted in its live 402 versus the listing, and an Ed25519-signed receipt. 5 free checks per client per UTC day (at most 25 per network); add &mode=dry-run for a free dry run that never approves a payment. Also the MCP tool endpoint_spot_check at https://api.402xagent.com/mcp.

x402paymentspre-payment checkfree

Examples it gives

https://api.402xagent.com/v1/products/endpoint-spot-check?url=https://api.402rates.com/v1/ping
Should my agent pay https://api.402rates.com/v1/ping?

Paid spot-check with full payment terms

The same check after the free quota: HTTP 402, $0.02 USDC on Base via x402 (exact scheme, amount 20000). Never pays the target. Adds the full payment details to the verdict (the exact payment terms, pay_to and deadline); optional claimed_price, pay_to, network and quote turn a mismatch into skip or recheck. Rules and reason codes: https://402xagent.com/rules.json.

x402paymentsspot-checkpaidUSDCBase

Examples it gives

https://api.402xagent.com/v1/products/endpoint-spot-check?url=https://api.402rates.com/v1/ping&pay_to=0x...&network=eip155:8453

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: 402xAgent — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 0.66.1
Card completeness: complete all eight fields required by a2a.proto v1.0

View all card details

Capabilities: extendedAgentCard pushNotifications streaming
Agent card: https://402xagent.com/.well-known/agent-card.json

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