x402 List

x402 Protocol Service Directory

Signalis

Data PAYMENT-READY

payment-ready until 2026-09-30

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.

measured since 2026-02-21 (start of our harvest window) · $12.02 all-time · settled via 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

VERDICT

ranking generation 3

solid 85/100 #109 of 316 in Data by measured score

What the score read on this service: status online, 99.5% uptime 30d, 448ms response p95, x402 compliance 14 of 14, $0.01 price against the category, on-chain traction measured. 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 Data, 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 316 listings, this one among them. That set is wider than the 316 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 DATA

Other Data 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
StableEnrich strong 96 100% $2.0k
glim.sh strong 95 100% $47.10
SniperX•x402 strong 95 100% $320.81
cn402 strong 94 100% $36.45
API Acre solid 92 99.5% $31.95
5 of 315 other ranked services in Data · see the whole category

ASSESSMENT

updated 42m 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 99.5%
uptime 24h
100%
uptime 7d
97.5%
uptime 30d
99.5%
uptime 90d
99.8%
response p95
448ms
avg response
312ms
total checks
2,715

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 (p60 in Data)
price (min)
$0.01
price (max)
$0.03
category percentile (min)
p60 in Data
category percentile (max)
p49 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
69d
registrar
Namecheap Inc.
hosting
custom
domain created
2026-07-10

Identity facts, not a risk score.

traction $1.4325 30d · 24 buyers
volume 30d
$1.4325
buyers 30d
24
settlements 30d
418
measured since
2026-02-21 (start of our harvest window)
last settlement
2026-09-23
top buyer share
20% of 30d volume
trend 7d vs 30d
0.83x the 30d daily rate
networks
eip155:8453
volume all-time
$12.02
settlements all-time
3,061
median settlement 30d
$0.01
max settlement 30d
$0.10
settled via
coinbase ($5.73, 418 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

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
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
09-23 · uptime 100.0% · 292ms avg09-2309-23
24h UPTIME 100%
RESPONSE TIME
09-23 · 292ms avg09-23 · 292ms avg09-2309-23
AVG RESP 316ms
PRICE (captured 402, USD)
09-22 · $0.02509-23 · $0.025$0.02509-2209-23

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

SUB-SCORES (uptime + x402 compliance)
09-22 uptime: 99.5% compliance: 100% checks09-23 uptime: 99.5% compliance: 100% checksuptimecompliance09-2209-23

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 2026-09-23

  • 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 166ms
● OK 361ms
● OK 235ms
● OK 291ms
● SLOW 500ms
● OK 311ms
● OK 286ms
● OK 239ms
● OK 228ms
● OK 339ms
● OK 340ms
● OK 264ms
● OK 191ms
● OK 283ms
● OK 247ms
● OK 216ms
● OK 209ms
● OK 296ms

EMBED THIS BADGE

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status
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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 ]

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/signalis/update.