AI Inference · x402 · early usage

SecondLook provides an independent pre-action review of a proposed AI or agent action

by secondlook.edgecasesystems.workers.dev · discovered, not yet claimed by its owner · updated 2026-09-13

30d calls1

30d payers1

MethodPOST

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

SecondLook provides an independent pre-action review of a proposed AI or agent action. It checks supplied facts, authority, constraints, reasoning, risks, and missing information before execution. Use it when an action is costly, external, irreversible, or constraint-sensitive. SecondLook does not authorize, execute, or supply missing authority, and results are not guarantees of correctness.

Tags: ai · agent · review · pre-action · decision-support · bazaar

Call contract

Method: POST
Input: json
Output: json
Last paid call: 2026-09-13

Input example from Bazaar metadata

{
  "authority": {
    "basis": "Support policy permits refunds up to $50.",
    "status": "confirmed"
  },
  "goal": "Review a proposed customer refund before execution.",
  "hard_constraints": [
    "Do not exceed the documented $50 refund limit."
  ],
  "known_facts": [
    "The customer was charged twice."
  ],
  "proposed_action": "Issue a $25 refund to the customer."
}

Output example

{
  "created_at": "2026-08-29T00:00:00.000Z",
  "decision_id": "00000000-0000-4000-8000-000000000000",
  "key_risks": [],
  "missing_information": [],
  "model": "implementation-managed",
  "policy_version": "2026-08-27.5",
  "reason": "The supplied authority, facts, and constraint support the proposed refund.",
  "recommendation": "proceed",
  "review_status": "no_material_concern_found"
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/31625.json for the price and payment options.
Pay. Call GET https://secondlook.edgecasesystems.workers.dev/v1/paid/second-look. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.05 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base
Demand: 1 calls · 1 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.05	0xc077a55e71a43ad002fbac7bf91d48e9866e5727	60s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xc077a55e71a43ad002fbac7bf91d48e9866e5727",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "50000",
    "amountUsd": 0.05,
    "maxTimeoutSeconds": 60
  }
]

Schemas

Output schema (JSON Schema)

{
  "additionalProperties": false,
  "properties": {
    "example": {
      "additionalProperties": false,
      "properties": {
        "created_at": {
          "format": "date-time",
          "type": "string"
        },
        "decision_id": {
          "format": "uuid",
          "type": "string"
        },
        "key_risks": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "missing_information": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "model": {
          "description": "Deprecated compatibility field; the underlying inference implementation is not a stable product contract.",
          "type": "string"
        },
        "policy_version": {
          "type": "string"
        },
        "reason": {
          "type": "string"
        },
        "recommendation": {
          "enum": [
            "proceed",
            "reconsider",
            "need_more_information",
            "escalate_to_human"
          ],
          "type": "string"
        },
        "review_status": {
          "enum": [
            "no_material_concern_found",
            "material_concern_found",
            "insufficient_information",
            "human_review_required"
          ],
          "type": "string"
        }
      },
      "required": [
        "decision_id",
        "created_at",
        "policy_version",
        "model",
        "review_status",
        "recommendation",
        "reason",
        "key_risks",
        "missing_information"
      ],
      "type": "object"
    },
    "type": {
      "const": "json"
    }
  },
  "required": [
    "type",
    "example"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {
    "created_at": "2026-01-01T00:00:00Z",
    "decision_id": "string",
    "key_risks": [
      "string"
    ],
    "missing_information": [
      "string"
    ],
    "model": "string",
    "policy_version": "string",
    "reason": "string",
    "recommendation": "proceed",
    "review_status": "no_material_concern_found"
  },
  "type": null
}

Examples

curl

curl -X POST 'https://secondlook.edgecasesystems.workers.dev/v1/paid/second-look' -H 'Content-Type: application/json' --data '{"authority":{"basis":"Support policy permits refunds up to $50.","status":"confirmed"},"goal":"Review a proposed customer refund before execution.","hard_constraints":["Do not exceed the documented $50 refund limit."],"known_facts":["The customer was charged twice."],"proposed_action":"Issue a $25 refund to the customer."}'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE

JavaScript

const res = await fetch("https://secondlook.edgecasesystems.workers.dev/v1/paid/second-look", {
  "method": "POST",
  "headers": {
    "content-type": "application/json"
  },
  "body": "{\"authority\":{\"basis\":\"Support policy permits refunds up to $50.\",\"status\":\"confirmed\"},\"goal\":\"Review a proposed customer refund before execution.\",\"hard_constraints\":[\"Do not exceed the documented $50 refund limit.\"],\"known_facts\":[\"The customer was charged twice.\"],\"proposed_action\":\"Issue a $25 refund to the customer.\"}"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
import json
res = httpx.request("POST", "https://secondlook.edgecasesystems.workers.dev/v1/paid/second-look", json=json.loads("{\"authority\":{\"basis\":\"Support policy permits refunds up to $50.\",\"status\":\"confirmed\"},\"goal\":\"Review a proposed customer refund before execution.\",\"hard_constraints\":[\"Do not exceed the documented $50 refund limit.\"],\"known_facts\":[\"The customer was charged twice.\"],\"proposed_action\":\"Issue a $25 refund to the customer.\"}"))
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: secondlook.edgecasesystems.workers.dev
Endpoint: https://secondlook.edgecasesystems.workers.dev/v1/paid/second-look
Machine-readable: /resources/31625.json