x402 List

x402 Protocol Service Directory

Signalis

Data PAYMENT-READY

payment-ready until 2026-08-20

Global intelligence for AI agents on x402: a 4-hourly Master Intelligence digest cross-synthesized from a 20-source roster — each digest reports the exact subset it used in its sourcesUsed field — plus Pulse, AI-business narrative intelligence (lifecycle-staged narratives, per-narrative detail, historical digests, raw content). Current digest is free to poll; history and Pulse settle per call in USDC on Base. Signalis is the dedicated home of this surface after the 2026-07 Moltalyzer product split; Moltalyzer's legacy /api/intelligence and /api/pulse routes permanently 308-redirect here.

Pay from $0.01 to $0.03 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-07-14 · $5.51 all-time · settled via payAI, coinbase

BASE URL https://api.signalis.dev WEBSITE https://signalis.dev ENDPOINTS 4 NETWORK Base ASSET USDC MEMBER SINCE 2026-07-14 MONITORED SINCE 2026-07-14

ASSESSMENT

updated 4h ago

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

reliability 99.9%
uptime 24h
97.8%
uptime 7d
99.8%
uptime 30d
99.9%
uptime 90d
99.9%
response p95
351ms
avg response
186ms
total checks
2,668

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 $0.01 to $0.03 (p53 in Data)
price (min)
$0.01
price (max)
$0.03
category percentile (min)
p53 in Data
category percentile (max)
p50 in Data
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
33d
registrar
Namecheap Inc.
hosting
custom
domain created
2026-07-10

Identity facts, not a risk score.

traction $5.50 30d · 21 buyers
volume 30d
$5.50
buyers 30d
21
settlements 30d
902
first settlement
2026-07-14
last settlement
2026-08-13
top buyer share
34% of 30d volume
trend 7d vs 30d
0.31x the 30d daily rate
networks
eip155:8453
volume all-time
$5.51
settlements all-time
906
median settlement 30d
$0.01
max settlement 30d
$0.25
settled via
payAI ($12.85, 336 tx), coinbase ($9.15, 566 tx)

Attributed pro-quota: this payout address is shared, so volume is the operator-level figure divided by the services sharing it, while buyer and transaction counts stay whole. A declared convention, not an individually observed measure, and still a conservative undercount.

Currently sharing this payout address with gitBeacon, Moltalyzer, OrcaTrace.

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

WHAT IT DOES

ai-derived

Signalis provides global intelligence and real-time awareness through synthesized digests and narratives from multiple sources.

category
intelligence-aggregation
in
query params
intelligencedata-synthesisreal-timecross-domain

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 /v1/intelligence/history $0.03 Base USDC header
GET /v1/pulse/content/recent $0.02 Base USDC header
GET /v1/pulse/digests $0.03 Base USDC header
GET /v1/pulse/narratives $0.01 Base USDC header
4 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /v1/intelligence/history returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://api.signalis.dev/v1/intelligence/history'
// 402 response (captured by monitor) · 4 payloads · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "30000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.signalis.dev/v1/intelligence/history",
      "mimeType": "application/json",
      "description": "Paid ($0.03 USDC via x402). Historical Master Intelligence digests (1-168 hour lookback) — id, title, executive summary, sources used, processing time, and createdAt provenance per row. Compute-first / settle-after — you are never charged for an error."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "hours": 48,
              "limit": 10
            }
          },
          "output": {
            "type": "json",
            "example": {
              "data": [
                {
                  "id": "clx0master123",
                  "title": "AI Infrastructure Race Accelerates as Macro Uncertainty Builds",
                  "createdAt": "2026-07-09T20:00:00.000Z",
                  "sourcesUsed": [
                    "polymarket",
                    "fred",
                    "github",
                    "moltbook"
                  ],
                  "executiveSummary": "Cross-source signals point to intensifying AI-infrastructure competition...",
                  "processingTimeMs": 48213
                }
              ],
              "count": 2,
              "hours": 48,
              "limit": 10,
              "charged": true,
              "success": true
            }
          }
        },
        "schema": {
          "type": "object",
          "$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"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "hours": {
                      "type": "integer",
                      "maximum": 168,
                      "minimum": 1,
                      "description": "Lookback window in hours (1-168)."
                    },
                    "limit": {
                      "type": "integer",
                      "maximum": 50,
                      "minimum": 1,
                      "description": "Max digests to return (1-50)."
                    }
                  }
                }
              },
              "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": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.signalis.dev/v1/pulse/narratives",
      "mimeType": "application/json",
      "description": "Paid ($0.01 USDC via x402). Active AI-business narratives with lifecycle stage, driving sources, and momentum. Proxied from the Pulse service. Compute-first / settle-after — you are never charged when Pulse is unavailable or returns an error."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "charged": true,
              "narratives": [
                {
                  "id": 4034,
                  "stage": "building",
                  "title": "AI-Native Founder Business Models and Organizational Strategy",
                  "summary": "How founders leverage AI to reshape organizational structure and competitive positioning.",
                  "momentum": 0.71
                }
              ]
            }
          }
        },
        "schema": {
          "type": "object",
          "$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"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "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": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "30000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.signalis.dev/v1/pulse/digests",
      "mimeType": "application/json",
      "description": "Paid ($0.03 USDC via x402). Historical AI-business narrative digests (?since=N). Proxied from the Pulse service. Compute-first / settle-after — you are never charged when Pulse is unavailable or returns an error."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "since": 1
            }
          },
          "output": {
            "type": "json",
            "example": {
              "charged": true,
              "digests": [
                {
                  "id": 1,
                  "title": "AI Agent Business Models and Infrastructure Emerge Amid Security and Reliability Concerns",
                  "summary": "A surge in discussions around AI agent business models emphasizing extreme scale and token efficiency."
                }
              ]
            }
          }
        },
        "schema": {
          "type": "object",
          "$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"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "since": {
                      "type": "integer",
                      "description": "Digest index to fetch items after (poll pattern)."
                    }
                  }
                }
              },
              "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": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.signalis.dev/v1/pulse/content/recent",
      "mimeType": "application/json",
      "description": "Paid ($0.02 USDC via x402). Raw scraped content items from the last 4 hours across all Pulse sources. Proxied from the Pulse service. Compute-first / settle-after — you are never charged when Pulse is unavailable or returns an error."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "items": [
                {
                  "id": 547916,
                  "title": "That is probably stronger",
                  "source": "reddit",
                  "content": "Discussion excerpt...",
                  "sourceId": "reddit_1usckfm"
                }
              ],
              "charged": true
            }
          }
        },
        "schema": {
          "type": "object",
          "$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"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 24h selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/signalis/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
08-13 · uptime 98.4% · 234ms avg08-1308-13
24h UPTIME 98.4%
RESPONSE TIME
08-13 · 234ms avg08-13 · 234ms avg08-1308-13
AVG RESP 186ms
PRICE (captured 402, USD)
08-12 · $0.02508-13 · $0.025$0.02508-1208-13

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

SUB-SCORES (uptime + x402 compliance)
08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 99.9% compliance: 100% checksuptimecompliance08-1208-13

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)
building volume history (1 day so far)

Shared payout address (3 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 4 services sharing it: a declared convention, not an individually observed measure.

DISTINCT BUYERS
building buyer history (1 day so far)

Shared payout address (3 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Per-service buyer and transaction counts are shown whole (integers), not divided; only volume is attributed pro-quota. A declared convention, not an individually observed measure.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-14 · 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 155ms
● OK 147ms
● OK 241ms
● OK 180ms
● SLOW 509ms
● OK 187ms
● OK 211ms
● OK 210ms
● OK 157ms
● OK 168ms
● OK 198ms
● OK 231ms
● OK 186ms
● OK 197ms
● SLOW 318ms
● OK 195ms
● OK 190ms
● SLOW 320ms

EMBED THIS BADGE

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live uptime
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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 ]

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