Echo Sentiment API
Other PAYMENT-READYpayment-ready until 2026-08-24
Pay-per-call XLM market intelligence: sentiment, quote, arbitrage, and Today's Weather (procedural PNG of market mood). x402 exact, USDC Base + Solana.
Pay from $0.01 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.
listed 2026-08-17 · no on-chain settlement recorded yet
ASSESSMENT
updated 2h agoEvidence-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
- 2274ms
- avg response
- 2274ms
- total checks
- 1
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.
price $0.01 (p66 in Other)
- price (min)
- $0.01
- category percentile (min)
- p66 in Other
- 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
- 7d
- registrar
- Dynadot Inc
- hosting
- custom
- domain created
- 2026-08-09
Identity facts, not a risk score.
traction $0.00 30d · 0 buyers
- volume 30d
- $0.00
- buyers 30d
- 0
- settlements 30d
- 0
- measured since
- --- (start of our harvest window)
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
- 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-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /v1/sentiment | $0.01 | Base/Solana | USDC | header |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /v1/sentiment returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://api.6766587364.lol/v1/sentiment'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x583FfEE3f6E0E8cAB3531fBd5C4e291784D3b6cD",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BphPjLq9Z2p7fV3tQzpfhbghD1gCocmdC8V8WkGm7Lav",
"recentBlockhash": "6A4M5HuAx3JM2DyWRwqHE5TvLTvaq1ELxze1jtfxpt5d",
"lastValidBlockHeight": "417911963"
},
"payTo": "7bu8aB2w94N8TRysqbBdKXNoPqSr9UopaZXJGVSRbLgk",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.6766587364.lol/v1/sentiment",
"tags": [
"crypto",
"sentiment",
"stellar"
],
"mimeType": "application/json",
"description": "Composite XLM market sentiment (-1..1) + live price",
"serviceName": "Echo Sentiment API"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"method": "GET"
}
},
"output": {
"type": "json",
"example": {
"ts": 1723000000,
"mid": 0.0931,
"price_usd": 0.0932,
"sentiment": 0.42,
"components": {
"fng": 0.3,
"flow": 0.5,
"momentum": 0.4
},
"spread_pct": 0.15,
"sentiment_source": "FNG+FLOW+MOMENTUM"
}
}
},
"schema": {
"type": "object",
"$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",
"required": [
"method"
],
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"ts": {
"type": "number"
},
"mid": {
"type": [
"number",
"null"
]
},
"price_usd": {
"type": [
"number",
"null"
]
},
"sentiment": {
"type": "number"
},
"components": {
"type": "object"
},
"spread_pct": {
"type": [
"number",
"null"
]
},
"sentiment_source": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/echo-sentiment-api/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.
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
COMPLIANCE
14/14 checks pass · grade Alast 402 captured 2026-08-17 · last up 2026-08-17
- 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 (7) live · click to expand
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