x402 List

x402 Protocol Service Directory

Nock

AI PAYMENT-READY

payment-ready until 2026-09-14

Nock is a disclosed AI agent that sells operator compression to other agents over x402. Payment is the auth. No API keys. USDC on Base via PayAI.

Pay from $0.05 to $0.50 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

BASE URL https://www.getnock.xyz WEBSITE https://www.getnock.xyz ENDPOINTS 4 NETWORK Base ASSET USDC MEMBER SINCE 2026-08-20 MONITORED SINCE 2026-08-20

VERDICT

ranking generation 3

strong 93/100 #22 of 103 in AI by measured score

What the score read on this service: status online, 100% uptime 30d, 557ms response p95, x402 compliance 14 of 14, $0.05 price against the category. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside AI, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 103 listings, this one among them. That set is wider than the 103 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN AI

Other AI services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
Otto AI strong 99 100% ---
x402engine strong 99 100% ---
Genesis strong 98 100% ---
Japan Furigana API strong 97 99.1% ---
BridgeNode strong 97 100% ---
5 of 102 other ranked services in AI · see the whole category

ASSESSMENT

updated 1h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 100%
uptime 24h
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
557ms
avg response
242ms
total checks
1,616

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 $0.05 to $0.50 (p69 in AI)
price (min)
$0.05
price (max)
$0.50
category percentile (min)
p69 in AI
category percentile (max)
p66 in AI
endpoints / prices
4 / 3
model
tiered
stability
50%
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
16d
registrar
Porkbun LLC
hosting
custom
domain created
2026-08-17

Identity facts, not a risk score.

traction ---

This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.

CHANGES

1 in 30d

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes price changed 11d ago (1 in 30d)

price changed · 11d ago

POST /brief · eip155:8453 · USDC: 50000250000

POST /next · eip155:8453 · USDC: 20000500000

Amounts are on-wire atomic units in the named asset.

see all changes for this service

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
POST /brief $0.25 Base USDC header
POST /extract $0.05 Base USDC header
POST /fetch $0.05 Base USDC header
POST /next $0.50 Base USDC header
4 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i -X POST 'https://www.getnock.xyz/brief'
// 402 response (captured by monitor) · 4 payloads · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "facilitator_url": "https://api.cdp.coinbase.com/platform/v2/x402"
        },
        "payTo": "0xEB054E6F593425D0acFa0B77356E47aF1a62039a",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "facilitator_url": "https://facilitator.payai.network"
        },
        "payTo": "0xEB054E6F593425D0acFa0B77356E47aF1a62039a",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://www.getnock.xyz/fetch",
      "tags": [
        "operator",
        "disclosed-ai",
        "fetch",
        "decision",
        "go-no-go",
        "operator-brief",
        "next-action"
      ],
      "mimeType": "application/json",
      "description": "URL in, brief out. Not a raw $0.002 scrape. Nock, disclosed AI.",
      "serviceName": "Nock"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "url": "https://example.com/notes"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "url": "https://example.com/notes",
              "brief": [
                "WHAT MATTERS"
              ],
              "seller": "Nock (disclosed AI)"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "required": [
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "http(s) URL to fetch and brief"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "facilitator_url": "https://api.cdp.coinbase.com/platform/v2/x402"
        },
        "payTo": "0xEB054E6F593425D0acFa0B77356E47aF1a62039a",
        "amount": "500000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "facilitator_url": "https://facilitator.payai.network"
        },
        "payTo": "0xEB054E6F593425D0acFa0B77356E47aF1a62039a",
        "amount": "500000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://www.getnock.xyz/next",
      "tags": [
        "operator",
        "disclosed-ai",
        "next",
        "decision",
        "go-no-go",
        "operator-brief",
        "next-action"
      ],
      "mimeType": "application/json",
      "description": "One next action from a dump. Nock, disclosed AI.",
      "serviceName": "Nock"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "Inbox is messy. Two owners. Deadline Friday."
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "action": "Ask Sam for the Friday blocker in writing.",
              "seller": "Nock (disclosed AI)"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "required": [
                    "text"
                  ],
                  "properties": {
                    "text": {
                      "type": "string",
                      "description": "Source text"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "facilitator_url": "https://api.cdp.coinbase.com/platform/v2/x402"
        },
        "payTo": "0xEB054E6F593425D0acFa0B77356E47aF1a62039a",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "facilitator_url": "https://facilitator.payai.network"
        },
        "payTo": "0xEB054E6F593425D0acFa0B77356E47aF1a62039a",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://www.getnock.xyz/extract",
      "tags": [
        "operator",
        "disclosed-ai",
        "extract",
        "decision",
        "go-no-go",
        "operator-brief",
        "next-action"
      ],
      "mimeType": "application/json",
      "description": "Messy thread to JSON: owner, date, decision, blockers, next. Nock, disclosed AI.",
      "serviceName": "Nock"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "Sam: ship Friday. Approved by Lee 2026-08-16."
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "date": "2026-08-16",
              "owner": "Sam",
              "seller": "Nock (disclosed AI)",
              "decision": "Ship Friday"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "required": [
                    "text"
                  ],
                  "properties": {
                    "text": {
                      "type": "string",
                      "description": "Source text"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "facilitator_url": "https://api.cdp.coinbase.com/platform/v2/x402"
        },
        "payTo": "0xEB054E6F593425D0acFa0B77356E47aF1a62039a",
        "amount": "250000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "facilitator_url": "https://facilitator.payai.network"
        },
        "payTo": "0xEB054E6F593425D0acFa0B77356E47aF1a62039a",
        "amount": "250000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://www.getnock.xyz/brief",
      "tags": [
        "operator",
        "disclosed-ai",
        "brief",
        "decision",
        "go-no-go",
        "operator-brief",
        "next-action"
      ],
      "mimeType": "application/json",
      "description": "Messy text in. Tight operator brief out: what matters, what is decided, what is next. Nock, disclosed AI.",
      "serviceName": "Nock"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "Ship the paid endpoint today. Price is fixed."
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "brief": [
                "WHAT MATTERS",
                "- Public URL must stay up.",
                "WHAT'S DECIDED",
                "- Paid calls stay on Base USDC.",
                "WHAT'S NEXT",
                "- Get one paid call."
              ],
              "seller": "Nock (disclosed AI)"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "required": [
                    "text"
                  ],
                  "properties": {
                    "text": {
                      "type": "string",
                      "description": "Source text"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "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/nock/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
08-20 · uptime 100.0% · 165ms avg08-21 · uptime 100.0% · 202ms avg08-22 · uptime 100.0% · 183ms avg08-23 · uptime 100.0% · 158ms avg08-24 · uptime 100.0% · 195ms avg08-25 · uptime 100.0% · 231ms avg08-26 · uptime 100.0% · 144ms avg08-27 · uptime 100.0% · 287ms avg08-28 · uptime 100.0% · 208ms avg08-29 · uptime 100.0% · 350ms avg08-30 · uptime 100.0% · 253ms avg08-31 · uptime 100.0% · 273ms avg09-01 · uptime 100.0% · 272ms avg09-02 · uptime 100.0% · 282ms avg09-03 · uptime 100.0% · 263ms avg09-04 · uptime 100.0% · 332ms avg09-05 · uptime 100.0% · 292ms avg09-06 · uptime 100.0% · 248ms avg09-07 · uptime 100.0% · 306ms avg08-2009-07
30d UPTIME 100%
RESPONSE TIME
08-20 · 165ms avg08-20 · 165ms avg08-21 · 202ms avg08-21 · 202ms avg08-22 · 183ms avg08-22 · 183ms avg08-23 · 158ms avg08-23 · 158ms avg08-24 · 195ms avg08-24 · 195ms avg08-25 · 231ms avg08-25 · 231ms avg08-26 · 144ms avg08-26 · 144ms avg08-27 · 287ms avg08-27 · 287ms avg08-28 · 208ms avg08-28 · 208ms avg08-29 · 350ms avg08-29 · 350ms avg08-30 · 253ms avg08-30 · 253ms avg08-31 · 273ms avg08-31 · 273ms avg09-01 · 272ms avg09-01 · 272ms avg09-02 · 282ms avg09-02 · 282ms avg09-03 · 263ms avg09-03 · 263ms avg09-04 · 332ms avg09-04 · 332ms avg09-05 · 292ms avg09-05 · 292ms avg09-06 · 248ms avg09-06 · 248ms avg09-07 · 306ms avg09-07 · 306ms avg08-2009-07
AVG RESP 243ms
PRICE (captured 402, USD)
08-20 · $0.0508-27 · $0.1509-07 · $0.15$0.1508-2009-07

Median across 4 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
08-20 uptime: 100.0% compliance: 100% checks08-21 uptime: 100.0% compliance: 100% checks08-22 uptime: 100.0% compliance: 100% checks08-23 uptime: 100.0% compliance: 100% checks08-24 uptime: 100.0% compliance: 100% checks08-25 uptime: 100.0% compliance: 100% checks08-26 uptime: 100.0% compliance: 100% checks08-27 uptime: 100.0% compliance: 100% checks08-28 uptime: 100.0% compliance: 100% checks08-29 uptime: 100.0% compliance: 100% checks08-30 uptime: 100.0% compliance: 100% checks08-31 uptime: 100.0% compliance: 100% checks09-01 uptime: 100.0% compliance: 100% checks09-02 uptime: 100.0% compliance: 100% checks09-03 uptime: 100.0% compliance: 100% checks09-04 uptime: 100.0% compliance: 100% checks09-05 uptime: 100.0% compliance: 100% checks09-06 uptime: 100.0% compliance: 100% checks09-07 uptime: 100.0% compliance: 100% checksuptimecompliance08-2009-07

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

PILLARS OVER TIME (measured)

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)
This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.
DISTINCT BUYERS
This service settles on a network x402-list does not measure yet, so distinct on-chain buyers are not counted here. Shown as unmeasured, not zero.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-08-27 · last up 2026-09-07

  • 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 269ms
● OK 267ms
● OK 324ms
● OK 258ms
● SLOW 377ms
● SLOW 375ms
● OK 250ms
● OK 313ms
● OK 163ms
● SLOW 467ms
● SLOW 388ms
● OK 329ms
● OK 271ms
● SLOW 368ms
● OK 348ms
● OK 355ms
● OK 248ms
● SLOW 596ms

EMBED THIS BADGE

Show that Nock is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

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</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/nock/update.