x402 List

x402 Protocol Service Directory

Datasource Pulse

Verification

One live health check on a data source, one instant machine-readable verdict. Monitor an Apify actor, API, or scraper for failures; check whether an API key silently failed; detect schema drift, stale data, empty results, dead credentials, rate limiting, and quota exhaustion. Validates keys for 35+ vendors (OpenAI, Anthropic, Stripe, GitHub and more), any HTTP endpoint, or a public Apify actor by id. Returns JSON: state, failure_class, message, recommended_action, latency_ms, metadata.

Pay from $0.02 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-07-25 · no on-chain settlement recorded yet

BASE URL https://datasourcepulse.com WEBSITE https://datasourcepulse.com ENDPOINTS 1 NETWORK Base ASSET USDC MEMBER SINCE 2026-07-25 MONITORED SINCE 2026-07-25

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
841ms
avg response
841ms
total checks
1
compliance A (11/11)

11 of 11 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.02 (p72 in Verification)
price (min)
$0.02
category percentile (min)
p72 in Verification
endpoints / prices
1 / 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
8d
registrar
Network Solutions, LLC
hosting
custom
domain created
2026-07-16

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

Monitors data sources including APIs, scrapers, and credentials for failures, schema drift, and quality issues.

category
data-monitoring
in
query params
monitoringapi-validationdata-qualitycredential-checkinghealth-check

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 /api/x402/check One live health check on a data source, one instant machine-readable verdict. Monitor an Apify actor, API, or scraper for failures; check whether an API key silently failed; detect schema drift, stale data, empty results, dead credentials, rate limiting, and quota exhaustion. Validates keys for 35+ vendors (OpenAI, Anthropic, Stripe, GitHub and more), any HTTP endpoint, or a public Apify actor by id. Returns JSON: state, failure_class, message, recommended_action, latency_ms, metadata. $0.02 Base USDC
1 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://datasourcepulse.com/api/x402/check'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "error": "This endpoint settles on POST only. GET and HEAD serve this payment envelope for discovery. POST the same path with an X-PAYMENT header to run a check.",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x7cCb91a3ad4c45097bDA4C3C29d2Cc89fA93Ab36",
        "scheme": "exact",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://datasourcepulse.com/api/x402/check",
        "description": "One live health check on a data source, one instant machine-readable verdict. Monitor an Apify actor, API, or scraper for failures; check whether an API key silently failed; detect schema drift, stale data, empty results, dead credentials, rate limiting, and quota exhaustion. Validates keys for 35+ vendors (OpenAI, Anthropic, Stripe, GitHub and more), any HTTP endpoint, or a public Apify actor by id. Returns JSON: state, failure_class, message, recommended_action, latency_ms, metadata.",
        "outputSchema": {
          "input": {
            "type": "http",
            "method": "POST",
            "bodyType": "json",
            "bodyFields": {
              "url": {
                "type": "string",
                "description": "generic_http vendor (required): the public endpoint to check. Private, loopback, and internal addresses are rejected."
              },
              "type": {
                "enum": [
                  "credential",
                  "actor"
                ],
                "type": "string",
                "description": "Check mode. credential (default): validate an API key or HTTP endpoint. actor: health-check a public Apify actor by id. If omitted, inferred: actorId present means actor, otherwise credential."
              },
              "apiKey": {
                "type": "string",
                "description": "credential mode: the API key to validate. Used for one live vendor call, never stored."
              },
              "vendor": {
                "type": "string",
                "description": "credential mode (required): vendor template, e.g. openai, anthropic, gemini, stripe, github, serpapi, reddit, youtube, or generic_http for any HTTP endpoint. Unknown vendors return 400 with the full list location."
              },
              "actorId": {
                "type": "string",
                "description": "actor mode (required): Apify actor id, e.g. apify~web-scraper."
              },
              "clientId": {
                "type": "string",
                "description": "credential mode: OAuth client id, for vendors that use one."
              },
              "apifyToken": {
                "type": "string",
                "description": "actor mode (required): Apify API token with actor + run read access. Used for live reads, never stored."
              },
              "authHeader": {
                "type": "string",
                "description": "generic_http: full Authorization header value to send."
              },
              "bearerToken": {
                "type": "string",
                "description": "credential mode: bearer token, for vendors that use one."
              },
              "clientSecret": {
                "type": "string",
                "description": "credential mode: OAuth client secret, for vendors that use one."
              },
              "costSpikePct": {
                "type": "number",
                "description": "actor mode: cost spike threshold percent (default 50)."
              },
              "quotaSoftCap": {
                "type": "number",
                "description": "credential mode, optional: your own budget line in the vendor's native usage unit. Quota verdicts are evaluated against this cap instead of the vendor's billing wall."
              },
              "refreshToken": {
                "type": "string",
                "description": "google_oauth vendor only: OAuth2 refresh token, validated via a token refresh."
              },
              "volumeDropPct": {
                "type": "number",
                "description": "actor mode: volume drop threshold percent (default 30)."
              },
              "successJsonPath": {
                "type": "string",
                "description": "generic_http: dot-separated JSON path to assert on the response body."
              },
              "successJsonValue": {
                "type": "string",
                "description": "generic_http: expected string value at successJsonPath."
              },
              "successStatusCode": {
                "type": "number",
                "description": "generic_http: expected HTTP status (default 200)."
              },
              "enableCostBaseline": {
                "type": "boolean",
                "description": "actor mode: alert if per-run cost spikes vs the rolling average (default false)."
              },
              "enableVolumeBaseline": {
                "type": "boolean",
                "description": "actor mode: alert if latest output volume drops vs the rolling average of recent runs (default true)."
              },
              "stalenessThresholdDays": {
                "type": "number",
                "description": "actor mode: failing verdict when the actor has not been updated in this many days (default 30)."
              }
            },
            "discoverable": true
          },
          "output": {
            "type": "object",
            "required": [
              "state",
              "failure_class",
              "message",
              "checked_at",
              "latency_ms"
            ],
            "properties": {
              "state": {
                "enum": [
                  "healthy",
                  "warning",
                  "failing"
                ],
                "type": "string",
                "description": "The health verdict."
              },
              "checked": {
                "type": "object",
                "description": "Echo of what was checked: { type, vendor } or { type, actor_id }. Never echoes credentials."
              },
              "message": {
                "type": "string",
                "description": "Human-readable explanation of the verdict."
              },
              "metadata": {
                "type": "object",
                "description": "Probe-specific detail: quota percentages, run success rates, schema check results, baseline numbers."
              },
              "checked_at": {
                "type": "string",
                "description": "ISO 8601 timestamp of the check."
              },
              "latency_ms": {
                "type": "number",
                "description": "End-to-end probe latency in milliseconds."
              },
              "failure_class": {
                "type": [
                  "string",
                  "null"
                ],
                "description": "Machine-readable failure class: dead_token, quota_exhausted, rate_limited, timeout, unexpected_response, actor_failed, volume_drop, schema_drift, cost_spike, actor_stale. Null when healthy."
              },
              "recommended_action": {
                "type": [
                  "string",
                  "null"
                ],
                "description": "What to do about it. Null when healthy."
              }
            }
          }
        },
        "maxAmountRequired": "20000",
        "maxTimeoutSeconds": 90
      }
    ],
    "x402Version": 1
  }
]

OVER TIME

All charts share the 90d window selected here. Every series is also served as JSON at /api/v1/services/datasource-pulse/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
07-25 · uptime 100.0% · 647ms avg07-2507-25
90d UPTIME 100%
RESPONSE TIME
07-25 · 647ms avg07-25 · 647ms avg07-2507-25
AVG RESP 693ms
PRICE (captured 402, USD)
building price history ($0.02)
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

11/11 checks pass · grade A
  • 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

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (13) · click to expand
TIME STATUS RESP
● SLOW 1106ms
● OK 507ms
● OK 651ms
● OK 923ms
● OK 497ms
● OK 491ms
● OK 700ms
● OK 626ms
● OK 545ms
● OK 918ms
● OK 770ms
● OK 439ms
● OK 841ms

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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.

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