Agent Protocol Inspector X402 V2

Reliability

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How to call it

POST https://contextiq.trango-compute.com/api/v1/agent-protocol-inspector/x402-v2

Each call costs $0.02 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

The listing has no example input.

POST https://contextiq.trango-compute.com/api/v1/agent-protocol-inspector/x402-v2
content-type: application/json

{}

Example response

Withheld: the listing's example response contains instructions aimed at AI agents. See the security scan below.

Call it from code

The curl command shows the payment challenge.

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://contextiq.trango-compute.com/api/v1/agent-protocol-inspector/x402-v2' \
  -H 'content-type: application/json' \
  --data-raw '{}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://contextiq.trango-compute.com/api/v1/agent-protocol-inspector/x402-v2' \
  -H 'content-type: application/json' \
  --data-raw '{}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

We don't show code that pays this service: its listing contains instructions aimed at AI agents.

Security scan

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