x402 List

x402 Protocol Service Directory

●

nsgoods Agent Trust & Screening Oracle

AI PAYMENT-READY

payment-ready until 2026-08-20

nsgoods, the verifiable trust layer for AI agents. Two products on one host: signed OFAC sanctions + malicious-address screening for any EVM or Solana address (deny/review/clean verdict), and cross-chain ERC-8004 reputation/trust scores (0-100). Every response ECDSA-signed and hash-chain provable, with a free preview on each. Part of a 6-oracle suite (aggregated manifest at https://x402.nsgoods.org/.well-known/x402).

Pay from $0.005 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-06-05 · $3.28 all-time · settled via coinbase

BASE URL https://trust.nsgoods.org │ WEBSITE https://x402.nsgoods.org │ ENDPOINTS 3 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-07-12 │ MONITORED SINCE 2026-07-12

ASSESSMENT

updated 3h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 100%
uptime 24h
100%
uptime 7d
99.8%
uptime 30d
100%
uptime 90d
100%
response p95
533ms
avg response
542ms
total checks
2,736

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.005 (p29 in AI)
price (min)
$0.005
category percentile (min)
p29 in AI
endpoints / prices
3 / 1
model
flat
stability
100%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

traction $1.67 30d · 5 buyers · top buyer 96%
volume 30d
$1.67
buyers 30d
5
settlements 30d
55
first settlement
2026-06-05
last settlement
2026-08-13
top buyer share
96% of 30d volume
trend 7d vs 30d
0.05x the 30d daily rate
networks
eip155:8453
volume all-time
$3.28
settlements all-time
86
median settlement 30d
$0.01
max settlement 30d
$0.25
settled via
coinbase ($1.67, 55 tx)

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

WHAT IT DOES

ai-derived

Provides agent trust screening and reputation scoring for blockchain addresses and AI agents

category
agent-screening
in
query params
auth
none
screeningreputationcomplianceblockchainsanctionssecurity

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
GET /agent-trust $0.005 Base USDC header
GET /agent-trust/screen $0.005 Base USDC header
GET /screen $0.005 Base USDC header
3 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /agent-trust returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://trust.nsgoods.org/agent-trust'
// 402 response (captured by monitor) · 3 payloads · click to expand 
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xc87a06DEE4c0E85912296002617120BBfd5EF990",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://trust.nsgoods.org/agent-trust",
      "mimeType": "application/json",
      "description": "Cross-chain ERC-8004 trust score for one (chain, agent) pair — signed JSON with transparent component breakdown (value_avg / client_breadth / volume / recency), per-chain context, and methodology link. USDC pay-per-call on Base mainnet."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET"
          },
          "output": {
            "type": "json",
            "example": {
              "chain": "ethereum",
              "result": {
                "score": 78.4,
                "inputs": {
                  "feedback_count": 42,
                  "distinct_clients": 18
                },
                "status": "ok",
                "components": {
                  "volume": 88.2,
                  "recency": 76.1,
                  "value_avg": 75,
                  "client_breadth": 80.5
                }
              },
              "agent_id": 123,
              "methodology": "https://trust.nsgoods.org/methodology"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "agent"
                  ],
                  "properties": {
                    "agent": {
                      "type": "string",
                      "description": "ERC-8004 agentId (uint256), e.g. 25975."
                    },
                    "chain": {
                      "type": "string",
                      "description": "one of ['base', 'bsc', 'ethereum', 'mantle', 'polygon']; default ethereum."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "chain",
                    "agent_id",
                    "result"
                  ],
                  "properties": {
                    "chain": {
                      "type": "string"
                    },
                    "result": {
                      "type": "object"
                    },
                    "agent_id": {
                      "type": "integer"
                    },
                    "methodology": {
                      "type": "string"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xc87a06DEE4c0E85912296002617120BBfd5EF990",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://trust.nsgoods.org/screen",
      "mimeType": "application/json",
      "description": "Address-risk screening for a raw wallet address across EVM chains + Solana — signed JSON with OFAC (Chainalysis oracle, EVM-only) + GoPlus hard/soft flags. Signals only, no decision imposed. USDC pay-per-call on Base mainnet."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "chain": "ethereum",
              "address": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "result": {
                "chain": "ethereum",
                "status": "ok",
                "address": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
                "sources": {
                  "goplus": "ok",
                  "chainalysis_oracle": "ok"
                },
                "malicious": true,
                "hard_flags": [
                  "goplus_sanctioned",
                  "ofac_sanctioned",
                  "stealing_attack"
                ],
                "sanctioned": true,
                "soft_flags": [
                  "blacklist_doubt"
                ]
              },
              "signed_by": "0x5e63d01d6A266BC17f577B80199a2a07B15053C7",
              "screening_verdict": "deny"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "address"
                  ],
                  "properties": {
                    "chain": {
                      "enum": [
                        "ethereum",
                        "base",
                        "bsc",
                        "polygon",
                        "mantle",
                        "solana"
                      ],
                      "type": "string",
                      "default": "ethereum"
                    },
                    "address": {
                      "type": "string",
                      "description": "Raw wallet address — EVM 0x-hex(40) or Solana base58(32-44)."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "result",
                    "screening_verdict",
                    "signed_by",
                    "signature"
                  ],
                  "properties": {
                    "result": {
                      "type": "object",
                      "required": [
                        "address",
                        "chain",
                        "hard_flags",
                        "malicious",
                        "sanctioned",
                        "status"
                      ],
                      "properties": {
                        "chain": {
                          "type": "string"
                        },
                        "status": {
                          "type": "string"
                        },
                        "address": {
                          "type": "string"
                        },
                        "sources": {
                          "type": "object"
                        },
                        "malicious": {
                          "type": "boolean"
                        },
                        "hard_flags": {
                          "type": "array",
                          "items": {
                            "type": "string"
                          }
                        },
                        "sanctioned": {
                          "type": "boolean"
                        },
                        "soft_flags": {
                          "type": "array",
                          "items": {
                            "type": "string"
                          }
                        }
                      }
                    },
                    "signature": {
                      "type": "string"
                    },
                    "signed_by": {
                      "type": "string"
                    },
                    "screening_verdict": {
                      "enum": [
                        "clean",
                        "review",
                        "deny"
                      ],
                      "type": "string"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xc87a06DEE4c0E85912296002617120BBfd5EF990",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://trust.nsgoods.org/agent-trust/screen",
      "mimeType": "application/json",
      "description": "OFAC + address-risk screened ERC-8004 trust score for one (chain, agent) pair — signed JSON with the base trust breakdown plus a screening block (sanctions / malicious flags) and an ALLOW / REVIEW / DENY decision. USDC pay-per-call on Base mainnet."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "agent": "6888",
              "chain": "ethereum"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "chain": "ethereum",
              "result": {
                "chain": "ethereum",
                "score": 95.72,
                "inputs": {
                  "feedback_count": 148,
                  "distinct_clients": 120
                },
                "status": "ok",
                "agent_id": 6888,
                "components": {
                  "volume": 100,
                  "recency": 89.97,
                  "value_avg": 94.45,
                  "client_breadth": 100
                }
              },
              "decision": "ALLOW",
              "screening": {
                "status": "ok",
                "sources": {
                  "goplus": "ok",
                  "chainalysis_oracle": "ok"
                },
                "malicious": false,
                "hard_flags": [],
                "sanctioned": false,
                "soft_flags": []
              },
              "signed_by": "0x5e63d01d6A266BC17f577B80199a2a07B15053C7"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "agent"
                  ],
                  "properties": {
                    "agent": {
                      "type": "string",
                      "description": "ERC-8004 agentId (uint256), e.g. 6888."
                    },
                    "chain": {
                      "enum": [
                        "ethereum",
                        "base",
                        "bsc",
                        "polygon",
                        "mantle"
                      ],
                      "type": "string",
                      "default": "ethereum"
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "required": [
                    "decision",
                    "result",
                    "screening",
                    "signed_by",
                    "signature"
                  ],
                  "properties": {
                    "chain": {
                      "type": "string"
                    },
                    "result": {
                      "type": "object"
                    },
                    "decision": {
                      "enum": [
                        "ALLOW",
                        "REVIEW",
                        "DENY"
                      ],
                      "type": "string"
                    },
                    "screening": {
                      "type": "object"
                    },
                    "signature": {
                      "type": "string"
                    },
                    "signed_by": {
                      "type": "string"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/nsgoods-agent-trust-oracle/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
07-15 · uptime 100.0% · 1119ms avg07-16 · uptime 100.0% · 1371ms avg07-17 · uptime 100.0% · 1165ms avg07-18 · uptime 100.0% · 942ms avg07-19 · uptime 100.0% · 852ms avg07-20 · uptime 100.0% · 898ms avg07-21 · uptime 100.0% · 495ms avg07-22 · uptime 100.0% · 358ms avg07-23 · uptime 100.0% · 244ms avg07-24 · uptime 100.0% · 287ms avg07-25 · uptime 100.0% · 359ms avg07-26 · uptime 100.0% · 382ms avg07-27 · uptime 100.0% · 384ms avg07-28 · uptime 100.0% · 428ms avg07-29 · uptime 100.0% · 448ms avg07-30 · uptime 100.0% · 399ms avg07-31 · uptime 100.0% · 429ms avg08-01 · uptime 100.0% · 464ms avg08-02 · uptime 100.0% · 474ms avg08-03 · uptime 100.0% · 502ms avg08-04 · uptime 100.0% · 429ms avg08-05 · uptime 100.0% · 538ms avg08-06 · uptime 100.0% · 377ms avg08-07 · uptime 100.0% · 368ms avg08-08 · uptime 100.0% · 386ms avg08-09 · uptime 100.0% · 394ms avg08-10 · uptime 98.9% · 414ms avg08-11 · uptime 100.0% · 325ms avg08-12 · uptime 100.0% · 333ms avg08-13 · uptime 100.0% · 358ms avg07-1508-13
30d UPTIME 100%
RESPONSE TIME
07-15 · 1119ms avg07-15 · 1119ms avg07-16 · 1371ms avg07-16 · 1371ms avg07-17 · 1165ms avg07-17 · 1165ms avg07-18 · 942ms avg07-18 · 942ms avg07-19 · 852ms avg07-19 · 852ms avg07-20 · 898ms avg07-20 · 898ms avg07-21 · 495ms avg07-21 · 495ms avg07-22 · 358ms avg07-22 · 358ms avg07-23 · 244ms avg07-23 · 244ms avg07-24 · 287ms avg07-24 · 287ms avg07-25 · 359ms avg07-25 · 359ms avg07-26 · 382ms avg07-26 · 382ms avg07-27 · 384ms avg07-27 · 384ms avg07-28 · 428ms avg07-28 · 428ms avg07-29 · 448ms avg07-29 · 448ms avg07-30 · 399ms avg07-30 · 399ms avg07-31 · 429ms avg07-31 · 429ms avg08-01 · 464ms avg08-01 · 464ms avg08-02 · 474ms avg08-02 · 474ms avg08-03 · 502ms avg08-03 · 502ms avg08-04 · 429ms avg08-04 · 429ms avg08-05 · 538ms avg08-05 · 538ms avg08-06 · 377ms avg08-06 · 377ms avg08-07 · 368ms avg08-07 · 368ms avg08-08 · 386ms avg08-08 · 386ms avg08-09 · 394ms avg08-09 · 394ms avg08-10 · 414ms avg08-10 · 414ms avg08-11 · 325ms avg08-11 · 325ms avg08-12 · 333ms avg08-12 · 333ms avg08-13 · 358ms avg08-13 · 358ms avg07-1508-13
AVG RESP 541ms
PRICE (captured 402, USD)
07-14 · $0.00507-21 · $0.00508-13 · $0.005$0.00507-1408-13

Median across 3 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
07-15 uptime: 100.0% compliance: 92% checks07-16 uptime: 100.0% compliance: 92% checks07-17 uptime: 100.0% compliance: 100% checks07-18 uptime: 100.0% compliance: 100% checks07-19 uptime: 100.0% compliance: 100% checks07-20 uptime: 100.0% compliance: 100% checks07-21 uptime: 100.0% compliance: 100% checks07-22 uptime: 100.0% compliance: 100% checks07-23 uptime: 100.0% compliance: 100% checks07-24 uptime: 100.0% compliance: 100% checks07-25 uptime: 100.0% compliance: 100% checks07-26 uptime: 100.0% compliance: 100% checks07-27 uptime: 100.0% compliance: 100% checks07-28 uptime: 100.0% compliance: 100% checks07-29 uptime: 100.0% compliance: 100% checks07-30 uptime: 100.0% compliance: 100% checks07-31 uptime: 100.0% compliance: 100% checks08-01 uptime: 100.0% compliance: 100% checks08-02 uptime: 100.0% compliance: 100% checks08-03 uptime: 100.0% compliance: 100% checks08-04 uptime: 100.0% compliance: 100% checks08-05 uptime: 100.0% compliance: 100% checks08-06 uptime: 100.0% compliance: 100% checks08-07 uptime: 100.0% compliance: 100% checks08-08 uptime: 100.0% compliance: 100% checks08-09 uptime: 100.0% compliance: 100% checks08-10 uptime: 100.0% compliance: 100% checks08-11 uptime: 100.0% compliance: 100% checks08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% compliance: 100% checksuptimecompliance07-1508-13

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)
price percentile in AI
site signals present (of 6)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
07-15 · $0.0607-18 · $0.1907-19 · $0.1907-20 · $0.2007-21 · $0.2007-22 · $0.1607-23 · $0.1907-26 · $0.2607-27 · $0.1907-28 · $0.0408-12 · $0.0108-13 · $0.01peak $0.2607-1508-13
DISTINCT BUYERS
07-15 · 1 buyer07-18 · 1 buyer07-19 · 1 buyer07-20 · 1 buyer07-21 · 1 buyer07-22 · 1 buyer07-23 · 1 buyer07-26 · 2 buyers07-27 · 1 buyer07-28 · 1 buyer08-12 · 1 buyer08-13 · 1 buyerpeak 2 buyers07-1508-13

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-21 · last up 2026-08-13

  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● OK 456ms
● OK 228ms
● OK 252ms
● OK 389ms
● OK 348ms
● OK 461ms
● OK 319ms
● OK 393ms
● OK 371ms
● OK 329ms
● OK 502ms
● OK 394ms
● OK 387ms
● OK 314ms
● OK 369ms
● OK 232ms
● OK 441ms
● OK 308ms
18 of 2,747 checks · live count

EMBED THIS BADGE

Show that nsgoods Agent Trust & Screening Oracle is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

nsgoods Agent Trust & Screening Oracle listed on x402-list
status
nsgoods Agent Trust & Screening Oracle uptime on x402-list
live uptime
// HTML
<a href="https://x402-list.com/services/nsgoods-agent-trust-oracle?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/nsgoods-agent-trust-oracle.svg" alt="nsgoods Agent Trust & Screening Oracle listed on x402-list" height="28">
</a>
// Markdown
[![nsgoods Agent Trust & Screening Oracle on x402-list](https://x402-list.com/badge/nsgoods-agent-trust-oracle.svg)](https://x402-list.com/services/nsgoods-agent-trust-oracle?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/nsgoods-agent-trust-oracle?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/nsgoods-agent-trust-oracle.svg?data=uptime" alt="nsgoods Agent Trust & Screening Oracle uptime on x402-list" height="28">
</a>

RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

[ update this listing ]

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

[ verify this service ($0.25) ]

To request delisting, email info@x402-list.com or update your listing at /services/nsgoods-agent-trust-oracle/update.