x402 List

x402 Protocol Service Directory

●

Trend Signals

Finance

Derived crypto trend data for autonomous agents — not a price feed. PP-SuperTrend trend state across ~1,600 crypto assets: bull/bear direction on 1D, 4H and 1W, how many bars ago each asset flipped, the band level at which the trend invalidates, RSI divergences and 14-day momentum. These are computed signals over years of history from a continuously running pipeline, so an agent cannot cheaply reproduce them. Pay per call in USDC on Base from $0.01 — no signup, no API key, no subscription.

Pay from $0.01 to $0.05 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-08-03 · no on-chain settlement recorded yet

BASE URL https://trend-signals.com │ WEBSITE https://trend-signals.com/x402/docs │ ENDPOINTS 4 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-08-03 │ MONITORED SINCE 2026-08-03

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
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
223ms
avg response
223ms
total checks
1
compliance A (13/14): x402 v2 envelope delivered in the payment-required header

13 of 14 x402 conformance checks pass; failing: x402 v2 envelope delivered in the payment-required header. Full checklist below.

jump to compliance checklist

price $0.01 to $0.05 (p46 in Finance)
price (min)
$0.01
price (max)
$0.05
category percentile (min)
p46 in Finance
category percentile (max)
p60 in Finance
endpoints / prices
4 / 3
model
tiered
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
36d
registrar
Cloudflare, Inc.
hosting
custom
domain created
2026-06-28

Identity facts, not a risk score.

traction $0 30d · 0 buyers
volume 30d
$0
buyers 30d
0
settlements 30d
0
first settlement
---
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453
volume all-time
$0
settlements all-time
0
median settlement 30d
$0
max settlement 30d
$0
settled via
-

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 crypto trend signals including PP-SuperTrend states, flips, and RSI divergences for approximately 1,600 crypto assets.

category
crypto-trend-signals
in
path
auth
none
cryptotrend-analysistechnical-indicatorsmarket-datasignals

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
GET /x402/divergences/recent $0.02 Base USDC
GET /x402/flips/recent $0.02 Base USDC
GET /x402/signal/BTC $0.01 Base USDC
GET /x402/signals $0.05 Base USDC
4 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /x402/divergences/recent returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://trend-signals.com/x402/divergences/recent'
// 402 response (captured by monitor) · 4 payloads · click to expand 
[
  {
    "error": "payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x2030fFaf1a4DBe3615Eb6dCbF392F9B4b1e44B71",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://trend-signals.com/x402/signals",
      "tags": [
        "crypto",
        "trend-signals",
        "supertrend",
        "technical-analysis",
        "market-data"
      ],
      "mimeType": "application/json",
      "description": "Full derived sweep across ~1.6k crypto assets: trend state, flip age, bands, per-timeframe signals, momentum. The whole book in one call.",
      "serviceName": "Trend Signals"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "limit": 500,
              "state": "bull"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "count": 1615,
              "signals": [
                {
                  "price": 0.0044186,
                  "symbol": "AKE",
                  "band_1d": 0.00017829051,
                  "signal_1d": "bull",
                  "signal_4h": "bull",
                  "flip_state": "bull",
                  "momentum_14d": 207.3,
                  "since_flip_pct": 552.96,
                  "candles_since_flip": 16
                }
              ]
            }
          }
        },
        "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",
                  "properties": {
                    "limit": {
                      "type": "number",
                      "description": "Maximum rows to return."
                    },
                    "state": {
                      "type": "string",
                      "description": "Filter to 'bull' or 'bear' trend only."
                    }
                  }
                }
              },
              "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"
        },
        "payTo": "0x2030fFaf1a4DBe3615Eb6dCbF392F9B4b1e44B71",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://trend-signals.com/x402/signal/BTC",
      "tags": [
        "crypto",
        "trend-signals",
        "supertrend",
        "technical-analysis",
        "market-data"
      ],
      "mimeType": "application/json",
      "description": "PP-SuperTrend state for ONE crypto asset: 1D/4H/1W signal, flip age in bars, band levels, divergence and 14d momentum.",
      "serviceName": "Trend Signals"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "signal": {
                "price": 0.0044186,
                "symbol": "AKE",
                "band_1d": 0.00017829051,
                "signal_1d": "bull",
                "signal_4h": "bull",
                "flip_state": "bull",
                "momentum_14d": 207.3,
                "since_flip_pct": 552.96,
                "candles_since_flip": 16
              },
              "symbol": "AKE",
              "generated_at": "2026-07-31T04:00:00Z"
            }
          }
        },
        "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",
                  "properties": {}
                }
              },
              "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"
        },
        "payTo": "0x2030fFaf1a4DBe3615Eb6dCbF392F9B4b1e44B71",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://trend-signals.com/x402/flips/recent",
      "tags": [
        "crypto",
        "trend-signals",
        "supertrend",
        "technical-analysis",
        "market-data"
      ],
      "mimeType": "application/json",
      "description": "Assets whose PP-SuperTrend trend flipped most recently, newest first, with price and band at the flip.",
      "serviceName": "Trend Signals"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "limit": 50
            }
          },
          "output": {
            "type": "json",
            "example": {
              "count": 1,
              "flips": [
                {
                  "symbol": "CXT",
                  "direction": "bear",
                  "timeframe": "4h",
                  "flipped_at": "2026-07-31T04:37:57.182Z",
                  "asset_class": "crypto"
                }
              ]
            }
          }
        },
        "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",
                  "properties": {
                    "limit": {
                      "type": "number",
                      "description": "Maximum rows to return."
                    }
                  }
                }
              },
              "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"
        },
        "payTo": "0x2030fFaf1a4DBe3615Eb6dCbF392F9B4b1e44B71",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://trend-signals.com/x402/divergences/recent",
      "tags": [
        "crypto",
        "trend-signals",
        "supertrend",
        "technical-analysis",
        "market-data"
      ],
      "mimeType": "application/json",
      "description": "Current RSI divergences (price/RSI disagreement) across the crypto universe.",
      "serviceName": "Trend Signals"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "limit": 50
            }
          },
          "output": {
            "type": "json",
            "example": {
              "count": 1,
              "divergences": [
                {
                  "kind": "bearish",
                  "symbol": "ETH",
                  "timeframe": "4h"
                }
              ]
            }
          }
        },
        "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",
                  "properties": {
                    "limit": {
                      "type": "number",
                      "description": "Maximum rows to return."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts share the 7d window selected here. Every series is also served as JSON at /api/v1/services/trend-signals/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
08-03 · uptime 100.0% · 182ms avg08-0308-03
7d UPTIME 100%
RESPONSE TIME
08-03 · 182ms avg08-03 · 182ms avg08-0308-03
AVG RESP 179ms
PRICE (captured 402, USD)
building price history ($0.02)

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

SUB-SCORES (uptime + x402 compliance)
building assessment history (1 day so far)
VOLUME (on-chain settlement, USD)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

13/14 checks pass · grade A · failing: x402 v2 envelope delivered in the payment-required header
  • 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 (13) · click to expand
TIME STATUS RESP
● OK 151ms
● OK 267ms
● OK 194ms
● OK 145ms
● OK 131ms
● OK 38ms
● SLOW 360ms
● OK 140ms
● OK 155ms
● OK 219ms
● OK 176ms
● OK 134ms
● OK 223ms
13 of 13 checks

EMBED THIS BADGE

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

Trend Signals listed on x402-list
status
Trend Signals uptime on x402-list
live uptime
// HTML
<a href="https://x402-list.com/services/trend-signals?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/trend-signals.svg" alt="Trend Signals listed on x402-list" height="28">
</a>
// Markdown
[![Trend Signals on x402-list](https://x402-list.com/badge/trend-signals.svg)](https://x402-list.com/services/trend-signals?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/trend-signals?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/trend-signals.svg?data=uptime" alt="Trend Signals 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 ]