x402 List

x402 Protocol Service Directory

Global Crypto Market Stats (CoinGecko data)

Data PAYMENT-READY imported

payment-ready until 2026-08-20

imported from the x402 Bazaar, not submitted by the operator · own this service? claim it · or ask to be removed

Returns global crypto market statistics from CoinGecko: total market cap in USD, total 24h volume, and market cap dominance for top coins including BTC and ETH. Single POST /service endpoint at 0.001 USDC per call on Base, first 3 calls free per wallet via an X-WALLET header.

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

first settlement 2026-06-29 · $0.05 all-time · settled via coinbase, payAI

BASE URL https://market-dominance.hergertsynthora.com ENDPOINTS 1 NETWORK Base ASSET USDC MEMBER SINCE 2026-07-20 MONITORED SINCE 2026-07-20

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 80.7%
uptime 24h
100%
uptime 7d
100%
uptime 30d
80.7%
uptime 90d
80.7%
response p95
1905ms
avg response
1030ms
total checks
2,088

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 (p84 in Data)
price (min)
$0.05
category percentile (min)
p84 in Data
endpoints / prices
1 / 1
model
flat
stability
0%
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
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

traction $0.0225606061 30d · 11 buyers
volume 30d
$0.0225606061
buyers 30d
11
settlements 30d
103
first settlement
2026-06-29
last settlement
2026-08-13
top buyer share
85% of 30d volume
trend 7d vs 30d
3.93x the 30d daily rate
networks
eip155:8453
volume all-time
$0.05
settlements all-time
232
median settlement 30d
$0.001
max settlement 30d
$0.10
settled via
coinbase ($1.44, 102 tx), payAI ($0.05, 1 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 Agent Card Validator (A2A), Crypto 24h Trading Stats (Binance data), Crypto Fear & Greed Index, Crypto OHLCV Candles (Binance data), DEX Token Price (GeckoTerminal data), Email Deliverability Audit (SPF, DKIM, DMARC), FX Exchange Rates (ECB), German VAT Number Validator (SYNTHORA), Hyperliquid Perps Snapshot, iCalendar (.ics) Generator, LEI Lookup (GLEIF), Order Book Liquidity (Binance depth), Perp Funding Rates (Binance data), Polymarket Prediction Markets Feed, Public Holidays API (Nager.Date), SYNTHORA Address Risk Screen, SYNTHORA Agent Capability Attestation, SYNTHORA Agent Pre-Trade Safety, SYNTHORA AML Wallet Screen, SYNTHORA Base Block Metrics, SYNTHORA BIC/SWIFT Check, SYNTHORA Bridge Risk Evaluator, SYNTHORA Contract Code Check (eth_getCode), SYNTHORA Contract Guard, SYNTHORA Contract Watch, SYNTHORA Counterparty Risk Verdict, SYNTHORA Crypto News Sentiment, SYNTHORA DeFi Data (Hyperliquid perp feed), SYNTHORA DeFi Strategy Verdict, SYNTHORA Derivatives Intel Bundle, SYNTHORA DNS + WHOIS Domain Report, SYNTHORA ENS Resolver, SYNTHORA ERC-20 Token Balance, SYNTHORA Forex Rates (ECB), SYNTHORA FX Exchange Rates, SYNTHORA Gas & MEV Oracle, SYNTHORA IBAN Check, SYNTHORA Inference Router, SYNTHORA Keyless Web Search, SYNTHORA Liquidation Risk Signal (Aave v3), SYNTHORA Mailcheck, SYNTHORA MCP Server Security Scan, SYNTHORA MEV Exposure Detector, SYNTHORA MTA-STS Audit, SYNTHORA Native Balance (eth_getBalance), SYNTHORA Open Interest Oracle, SYNTHORA Pre-Sign Transaction Verdict, SYNTHORA Routing Check, Synthora RPC Contract Metadata, SYNTHORA RPC Network Metadata, SYNTHORA RPC Proxy Detect, SYNTHORA RPC Receipt, SYNTHORA RPC Transaction by Hash, SYNTHORA Slippage Oracle, SYNTHORA Stablecoin Peg Monitor, SYNTHORA Stablecoin Supply, SYNTHORA Token Risk, SYNTHORA Translate, SYNTHORA Trending Coins, SYNTHORA Tx Intent Classifier, SYNTHORA Wallet Reputation Score, SYNTHORA x402 Endpoint Preflight, SYNTHORA x402 Registry Watch, VIN Decoder (NHTSA vPIC), Wikipedia Article Summary.

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

CHANGES

2 events, detecting since 2026-07-24

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 19d ago (2 since 2026-07-24)

price changed · 19d ago

POST /service · eip155:8453 · USDC: 40001000

price changed · 19d ago

POST /service · eip155:8453 · USDC: 10004000

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

see all changes for this service

WHAT IT DOES

ai-derived

Provides real-time global cryptocurrency market statistics including total market cap, 24h volume, BTC/ETH dominance, and active coins.

category
crypto-market-data
in
body
auth
api key
cryptomarket-datastatisticsfinancial-data

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
POST /service Real-time global crypto stats: total market cap, 24h volume, BTC/ETH dominance, active coins. Macro context for portfolio agents. Free source. $0.005 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. $0.05 Base USDC header
1 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /service 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://market-dominance.hergertsynthora.com/service'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/market-dominance",
        "description": "Bitcoin/altcoin market dominance CONTRASTED between CoinGecko and Coinlore, reporting the discrepancy in percentage points between the two indices: it tells you whether the figure is solid or whether one source is measuring a different universe of coins. Neither source gives this alone.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 3
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/market-dominance",
      "mimeType": "application/json",
      "description": "Bitcoin/altcoin market dominance CONTRASTED between CoinGecko and Coinlore, reporting the discrepancy in percentage points between the two indices: it tells you whether the figure is solid or whether one source is measuring a different universe of coins. Neither source gives this alone."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "0x0000000000000000000000000000000000000000"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "market_dominance",
              "result": {},
              "receipt": {}
            }
          }
        },
        "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": {
                  "type": "object",
                  "required": [
                    "input"
                  ],
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "Bitcoin/altcoin market dominance CONTRASTED between CoinGecko and Coinlore, reporting the discrepancy in percentage points between the two indices: it tells you whether the figure is solid or whether one source is measuring a different universe of coins. Neither source gives this alone."
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 7d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/global-crypto-market-stats-coingecko-data/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
08-07 · uptime 100.0% · 716ms avg08-08 · uptime 100.0% · 623ms avg08-09 · uptime 100.0% · 605ms avg08-10 · uptime 100.0% · 591ms avg08-11 · uptime 100.0% · 498ms avg08-12 · uptime 100.0% · 709ms avg08-13 · uptime 100.0% · 750ms avg08-0708-13
7d UPTIME 100%
RESPONSE TIME
08-07 · 716ms avg08-07 · 716ms avg08-08 · 623ms avg08-08 · 623ms avg08-09 · 605ms avg08-09 · 605ms avg08-10 · 591ms avg08-10 · 591ms avg08-11 · 498ms avg08-11 · 498ms avg08-12 · 709ms avg08-12 · 709ms avg08-13 · 750ms avg08-13 · 750ms avg08-0708-13
AVG RESP 1027ms
PRICE (captured 402, USD)
08-06 · $0.0508-13 · $0.05$0.0508-0608-13
SUB-SCORES (uptime + x402 compliance)
08-06 uptime: 72.9% compliance: 100% checks08-07 uptime: 74.5% compliance: 100% checks08-08 uptime: 75.9% compliance: 100% checks08-09 uptime: 77.2% compliance: 100% checks08-10 uptime: 78.3% compliance: 100% checks08-11 uptime: 79.4% compliance: 100% checks08-12 uptime: 80.1% compliance: 100% checks08-13 uptime: 80.7% compliance: 100% checksuptimecompliance08-0608-13

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)
08-12 · $108-13 · $0.42peak $108-1208-13

Shared payout address (65 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 66 services sharing it: a declared convention, not an individually observed measure.

DISTINCT BUYERS
08-12 · 1 buyer08-13 · 3 buyerspeak 3 buyers08-1208-13

Shared payout address (65 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 2026-08-04 · 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 944ms
● OK 724ms
● OK 868ms
● OK 794ms
● OK 816ms
● OK 310ms
● OK 838ms
● OK 476ms
● OK 987ms
● OK 677ms
● OK 591ms
● OK 456ms
● OK 477ms
● OK 872ms
● OK 727ms
● OK 545ms
● OK 442ms
● OK 830ms

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