x402 crypto market-intelligence and token-risk API for autonomous agents, led by a delivery-verified /fear-greed checkout route on Base USDC.
Pay from $0.03 to $1.00 in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
UPTIME 24H 96.2% │ 7D 84.1% │ 30D 96.6%
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 96.5%
- uptime 24h
- 95.7%
- uptime 7d
- 84%
- uptime 30d
- 96.5%
- uptime 90d
- 97.9%
- response p95
- 474ms
- avg response
- 332ms
- total checks
- 2,687
compliance A (11/11)
11 of 11 x402 conformance checks pass. Full checklist below.
price $0.03 to $1.00 (p74 in Finance)
- price (min)
- $0.03
- price (max)
- $1.00
- category percentile (min)
- p74 in Finance
- category percentile (max)
- p85 in Finance
- endpoints / prices
- 7 / 5
- model
- tiered
- stability
- 58%
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.
traction $1.15 30d · 3 buyers
- volume 30d
- $1.15
- buyers 30d
- 3
- settlements 30d
- 8
- last settlement
- 2026-07-10
- top buyer share
- 93% of 30d volume
- trend 7d vs 30d
- 0.00x the 30d daily rate
- networks
- eip155:8453
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-derivedFia Signals provides financial risk assessment and market data APIs for cryptocurrency trading on the Base network.
- category
- crypto-risk-data
- in
- query params
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /contract-risk/batch | $0.03 | Base | USDC | |
| GET | /fear-greed | $0.05 | Base | USDC | |
| GET | /funding | $0.20 | Base | USDC | |
| GET | /pre-trade-risk/batch | $0.03 | Base | USDC | |
| GET | /prices | $0.20 | Base | USDC | |
| GET | /regime | $1.00 | Base | USDC | |
| GET | /token-safety/batch | $0.03 | Base | USDC |
7 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /contract-risk/batch returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i 'https://x402.fiasignals.com/contract-risk/batch'
// 402 response (captured by monitor) · 7 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "200000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "200000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402.fiasignals.com/funding",
"mimeType": "application/json",
"description": "Market funding risk check for autonomous trading agents. Returns top positive perpetual funding rates, a decision summary, funding window timing, evidence fields, and risk framing for enter/hold/avoid decisions. Repeat-buyer market-data ladder: buyer 0x3803...101b paid /prices, /fear-greed, then /basis. /funding is the next adjacent paid route to watch; it is not demand proof until payment evidence or delivered paid response appears."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET"
},
"output": {
"type": "json",
"example": {
"count": 10,
"action": "Avoid crowded long exposure unless basis and setup justify funding cost.",
"product": "market_funding_risk_check",
"results": [
{
"symbol": "BTCUSDT",
"direction": "positive",
"funding_rate_pct": 0.01,
"next_funding_time": "2026-02-25T08:00:00Z"
}
],
"decision": "CAUTION",
"evidence": {
"top_symbol": "BTCUSDT",
"next_funding_utc": "2026-02-25 08:00:00 UTC",
"max_funding_rate_pct": 0.01
},
"timestamp": "2026-02-25T07:00:00+00:00"
}
},
"positioning": "Use after /basis when an agent needs to decide whether perp funding makes a trade expensive, attractive, or worth avoiding.",
"conversion_copy": "Repeat-buyer market-data ladder: buyer 0x3803...101b paid /prices, /fear-greed, then /basis. /funding is the next adjacent paid route to watch; it is not demand proof until payment evidence or delivered paid response appears.",
"buyer_conversion_proof": {
"url": "https://x402.fiasignals.com/basis",
"asset": "Base USDC",
"route": "/basis",
"method": "GET or HEAD",
"network": "eip155:8453",
"latest_tx": "0xcdd795d053277ddea1c89703300a7e5ce2e1b9416d96401d064d9cf38bae2138",
"price_usdc": "0.25",
"backup_route": "/dominance",
"booking_rule": "/funding remains measurement-only until a payment header, paid 200, settlement, buyer hash, or delivery anomaly appears.",
"latest_buyer": "0x3803A19280DeeFe533D177C4A169412BD341101b",
"route_family": [
"/prices",
"/fear-greed",
"/basis"
],
"strict_delivery_yes": 1,
"paid_attempts_observed": 1,
"paid_delivery_failures": 0,
"latest_strict_delivery_utc": "2026-05-26T15:15:57Z",
"next_adjacent_route_to_measure": "/funding"
}
},
"schema": {
"properties": {
"input": {
"type": "object",
"required": [
"method"
],
"properties": {
"queryParams": {
"type": "object",
"properties": {
"format": {
"enum": [
"json",
"minimal"
],
"type": "string",
"default": "json"
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"example": {
"type": "object",
"description": "JSON response with market intelligence data"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "200000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402.fiasignals.com/prices",
"mimeType": "application/json",
"description": "Real-time spot prices for up to 20 crypto symbols in a single call. Pass ?symbols=BTC,ETH,SOL or leave blank for top 20 by volume. Returns price, 24h change %, 24h high/low."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET"
},
"output": {
"type": "json",
"example": {
"count": 3,
"results": [
{
"price": 68841.88,
"symbol": "BTCUSDT",
"low_24h": 64000,
"high_24h": 69500,
"change_24h_pct": 7.4
},
{
"price": 2080.69,
"symbol": "ETHUSDT",
"low_24h": 1845,
"high_24h": 2090,
"change_24h_pct": 12.33
},
{
"price": 88.88,
"symbol": "SOLUSDT",
"low_24h": 77,
"high_24h": 89,
"change_24h_pct": 14.01
}
],
"timestamp": "2026-02-25T19:00:00+00:00"
}
}
},
"schema": {
"properties": {
"input": {
"type": "object",
"required": [
"method"
],
"properties": {
"queryParams": {
"type": "object",
"properties": {
"format": {
"enum": [
"json",
"minimal"
],
"type": "string",
"default": "json"
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"example": {
"type": "object",
"description": "JSON response with market intelligence data"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402.fiasignals.com/regime",
"mimeType": "application/json",
"description": "Bitcoin and crypto market regime API for trading agents. Returns volatility regime, RSI, ADX, confidence score, and actionable recommendation for bots deciding whether to trade, wait, hedge, or reduce exposure."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "base",
"token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}
},
"output": {
"type": "json",
"example": {
"adx": 34.1,
"rsi": 62.4,
"regime": "TRENDING UP",
"timestamp": "2026-02-25T07:00:00+00:00",
"confidence": "HIGH (0.85)",
"recommendation": "Favour longs with trailing stops. Grid bot above current price."
}
}
},
"schema": {
"properties": {
"input": {
"type": "object",
"required": [
"method"
],
"properties": {
"queryParams": {
"type": "object",
"properties": {
"format": {
"enum": [
"json",
"minimal"
],
"type": "string",
"default": "json"
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"example": {
"type": "object",
"description": "JSON response with market intelligence data"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402.fiasignals.com/pre-trade-risk/batch",
"mimeType": "application/json",
"description": "Fia Signals x402 Base USDC token safety and smart contract risk batch API for buyer agents, trading bots, swap routers, and A2A commerce. Screen up to 5 Base/EVM contracts before a swap for contract risk, rugpull, honeypot, liquidity, and market risk. Returns safe/risky/blocked verdicts, scores, warnings, GoPlus and DexScreener evidence, aggregate counts, and a non-breaking 0.50 USDC bundled-risk-pack payable tier in one paid pre-swap call."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "base",
"token_addresses": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913,0x4200000000000000000000000000000000000006"
}
},
"output": {
"type": "json",
"example": {
"count": 3,
"results": [
{
"action": "PROCEED",
"verdict": "safe",
"safety_score": 90
}
],
"summary": {
"safe": 1,
"risky": 1,
"blocked": 1
}
}
},
"upsell": {
"id": "bundled-risk-pack",
"name": "Fia Signals Bundled Risk Pack",
"status": "payable_x402_route_live",
"delivers": [
"combined token safety and smart contract risk summary",
"up to 5 Base/EVM contracts from the existing batch payload",
"ranked proceed/caution/reject queue",
"aggregate blocker reasons and warnings",
"buyer-facing next-action memo for swap routers",
"strict proof fields for revenue reconciliation"
],
"price_usdc": "0.50",
"buyer_action": "Use this as the next paid step after any /token-safety, /token-safety/batch, /pre-trade-risk, or /pre-trade-risk/batch hit. Do not buy another isolated starter check when the agent needs a ranked swap decision packet.",
"truth_status": "not_revenue_until_distinct_external_0_50_payment_tx_ref_or_completed_acp_job",
"payable_route": "https://x402.fiasignals.com/bundled-risk-pack",
"starter_routes": [
"https://x402.fiasignals.com/token-safety/batch",
"https://x402.fiasignals.com/contract-risk/batch"
],
"amount_raw_usdc": "500000",
"payable_methods": [
"GET",
"POST"
],
"accepts_ordering": "starter_first_bundle_second",
"non_breaking_policy": "Keep existing 0.03 USDC batch endpoints unchanged. Buyers who want the 0.50 USDC bundle should pay the distinct bundled-risk-pack route.",
"target_buyer_signal": "Repeat buyers using token-safety and contract-risk batch checks who need a larger pre-swap risk packet instead of another isolated 0.03 USDC call.",
"starter_accepts_index": 0,
"preferred_accepts_index": 1,
"starter_amount_raw_usdc": "30000",
"preferred_selection_hint": "Starter buyers can use accepts[0] at 30000 raw USDC. Repeat buyers, multi-token buyers, and agents that already know they need a combined risk memo should select accepts[1] at 500000 raw USDC or pay the distinct bundled-risk-pack route.",
"preferred_amount_raw_usdc": "500000",
"recommended_for_repeat_buyers": true
},
"dedup_alert_discipline": {
"rule": "one reconcile per unique x402 tx_ref across x402_events and x402_sales",
"watcher": "tools/x402_bundle_watch.py",
"suppress": "duplicate alerts for the same tx_ref are operating noise, not new revenue",
"fallback_key": "payment_proof_fingerprint, then endpoint+buyer+amount+timestamp_bucket when tx_ref is missing",
"dedupe_priority": [
"tx_ref",
"payment_proof_fingerprint",
"endpoint+buyer+amount+timestamp_bucket"
]
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"POST"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"token_addresses"
],
"properties": {
"chain": {
"type": "string",
"default": "base"
},
"token_addresses": {
"type": "string",
"description": "Comma-separated EVM token addresses, maximum 5."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type",
"example"
],
"properties": {
"chain": {
"type": "string"
},
"count": {
"type": "integer",
"maximum": 5,
"minimum": 1
},
"limit": {
"type": "integer",
"const": 5
},
"results": {
"type": "array",
"items": {
"type": "object",
"properties": {
"action": {
"type": "string"
},
"reasons": {
"type": "array",
"items": {
"type": "string"
}
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"verdict": {
"enum": [
"safe",
"risky",
"blocked",
"error"
],
"type": "string"
},
"warnings": {
"type": "array",
"items": {
"type": "string"
}
},
"confidence": {
"type": "string"
},
"raw_checks": {
"type": "object"
},
"safety_score": {
"type": "integer",
"maximum": 100,
"minimum": 0
}
}
}
},
"summary": {
"type": "object",
"properties": {
"safe": {
"type": "integer"
},
"error": {
"type": "integer"
},
"risky": {
"type": "integer"
},
"blocked": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402.fiasignals.com/token-safety/batch",
"mimeType": "application/json",
"description": "Fia Signals x402 Base USDC token safety and smart contract risk batch API for buyer agents, trading bots, swap routers, and A2A commerce. Screen up to 5 Base/EVM contracts before a swap for contract risk, rugpull, honeypot, liquidity, and market risk. Returns safe/risky/blocked verdicts, scores, warnings, GoPlus and DexScreener evidence, aggregate counts, and a non-breaking 0.50 USDC bundled-risk-pack payable tier in one paid pre-swap call."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "base",
"token_addresses": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913,0x4200000000000000000000000000000000000006"
}
},
"output": {
"type": "json",
"example": {
"chain": "base",
"count": 2,
"limit": 5,
"results": [
{
"action": "PROCEED",
"sources": [
"GoPlus",
"DexScreener"
],
"verdict": "safe",
"confidence": "medium",
"safety_score": 90
}
],
"summary": {
"safe": 2,
"error": 0,
"risky": 0,
"blocked": 0
}
}
},
"upsell": {
"id": "bundled-risk-pack",
"name": "Fia Signals Bundled Risk Pack",
"status": "payable_x402_route_live",
"delivers": [
"combined token safety and smart contract risk summary",
"up to 5 Base/EVM contracts from the existing batch payload",
"ranked proceed/caution/reject queue",
"aggregate blocker reasons and warnings",
"buyer-facing next-action memo for swap routers",
"strict proof fields for revenue reconciliation"
],
"price_usdc": "0.50",
"buyer_action": "Use this as the next paid step after any /token-safety, /token-safety/batch, /pre-trade-risk, or /pre-trade-risk/batch hit. Do not buy another isolated starter check when the agent needs a ranked swap decision packet.",
"truth_status": "not_revenue_until_distinct_external_0_50_payment_tx_ref_or_completed_acp_job",
"payable_route": "https://x402.fiasignals.com/bundled-risk-pack",
"starter_routes": [
"https://x402.fiasignals.com/token-safety/batch",
"https://x402.fiasignals.com/contract-risk/batch"
],
"amount_raw_usdc": "500000",
"payable_methods": [
"GET",
"POST"
],
"accepts_ordering": "starter_first_bundle_second",
"non_breaking_policy": "Keep existing 0.03 USDC batch endpoints unchanged. Buyers who want the 0.50 USDC bundle should pay the distinct bundled-risk-pack route.",
"target_buyer_signal": "Repeat buyers using token-safety and contract-risk batch checks who need a larger pre-swap risk packet instead of another isolated 0.03 USDC call.",
"starter_accepts_index": 0,
"preferred_accepts_index": 1,
"starter_amount_raw_usdc": "30000",
"preferred_selection_hint": "Starter buyers can use accepts[0] at 30000 raw USDC. Repeat buyers, multi-token buyers, and agents that already know they need a combined risk memo should select accepts[1] at 500000 raw USDC or pay the distinct bundled-risk-pack route.",
"preferred_amount_raw_usdc": "500000",
"recommended_for_repeat_buyers": true
},
"dedup_alert_discipline": {
"rule": "one reconcile per unique x402 tx_ref across x402_events and x402_sales",
"watcher": "tools/x402_bundle_watch.py",
"suppress": "duplicate alerts for the same tx_ref are operating noise, not new revenue",
"fallback_key": "payment_proof_fingerprint, then endpoint+buyer+amount+timestamp_bucket when tx_ref is missing",
"dedupe_priority": [
"tx_ref",
"payment_proof_fingerprint",
"endpoint+buyer+amount+timestamp_bucket"
]
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"POST"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"token_addresses"
],
"properties": {
"chain": {
"type": "string",
"default": "base"
},
"token_addresses": {
"type": "string",
"description": "Comma-separated EVM token addresses, maximum 5."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type",
"example"
],
"properties": {
"chain": {
"type": "string"
},
"count": {
"type": "integer",
"maximum": 5,
"minimum": 1
},
"limit": {
"type": "integer",
"const": 5
},
"results": {
"type": "array",
"items": {
"type": "object",
"properties": {
"action": {
"type": "string"
},
"reasons": {
"type": "array",
"items": {
"type": "string"
}
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"verdict": {
"enum": [
"safe",
"risky",
"blocked",
"error"
],
"type": "string"
},
"warnings": {
"type": "array",
"items": {
"type": "string"
}
},
"confidence": {
"type": "string"
},
"raw_checks": {
"type": "object"
},
"safety_score": {
"type": "integer",
"maximum": 100,
"minimum": 0
}
}
}
},
"summary": {
"type": "object",
"properties": {
"safe": {
"type": "integer"
},
"error": {
"type": "integer"
},
"risky": {
"type": "integer"
},
"blocked": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402.fiasignals.com/fear-greed",
"mimeType": "application/json",
"description": "Crypto Fear and Greed Index API - real-time market sentiment indicator for Bitcoin and crypto. Contrarian trading signal based on market psychology. HEAD/GET paid-compatible /fear-greed route on Base USDC; delivery-gated; last strict paid delivery YES at 2026-06-14T00:15:47Z; 3 paid attempts, 3 delivery YES, 0 paid delivery failures."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET"
},
"output": {
"description": "JSON with value (0-100), classification (Extreme Fear/Fear/Neutral/Greed/Extreme Greed), previous_close value, change since previous day, and ISO timestamp."
},
"conversion_copy": "HEAD/GET paid-compatible /fear-greed route on Base USDC; delivery-gated; last strict paid delivery YES at 2026-06-14T00:15:47Z; 3 paid attempts, 3 delivery YES, 0 paid delivery failures.",
"buyer_conversion_proof": {
"url": "https://x402.fiasignals.com/fear-greed",
"asset": "Base USDC",
"route": "/fear-greed",
"method": "GET or HEAD",
"network": "eip155:8453",
"latest_tx": "0x0ca44cc649fdc9c5c785014be1f549a64fe9523638c824d7e59ad47639516c27",
"price_usdc": "0.05",
"booking_rule": "Payment without delivery blocks revenue booking; payment plus delivery is eligible for strict ledger review.",
"latest_buyer": "0x3803A19280DeeFe533D177C4A169412BD341101b",
"strict_delivery_yes": 3,
"paid_attempts_observed": 3,
"paid_delivery_failures": 0,
"latest_strict_delivery_utc": "2026-06-14T00:15:47Z"
}
},
"schema": {
"properties": {
"input": {
"type": "object",
"required": [
"method"
],
"properties": {
"queryParams": {
"type": "object",
"properties": {
"format": {
"enum": [
"json",
"minimal"
],
"type": "string",
"default": "json"
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"example": {
"type": "object",
"description": "JSON response with market intelligence data"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8D32c6a3EE3fB8a8b4c5378F7C5a26CC320a853F",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402.fiasignals.com/contract-risk/batch",
"mimeType": "application/json",
"description": "Fia Signals x402 Base USDC token safety and smart contract risk batch API for buyer agents, trading bots, swap routers, and A2A commerce. Screen up to 5 Base/EVM contracts before a swap for contract risk, rugpull, honeypot, liquidity, and market risk. Returns safe/risky/blocked verdicts, scores, warnings, GoPlus and DexScreener evidence, aggregate counts, and a non-breaking 0.50 USDC bundled-risk-pack payable tier in one paid pre-swap call."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "base",
"token_addresses": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913,0x4200000000000000000000000000000000000006"
}
},
"output": {
"type": "json",
"example": {
"chain": "base",
"count": 2,
"limit": 5,
"results": [
{
"action": "PROCEED",
"sources": [
"GoPlus",
"DexScreener"
],
"verdict": "safe",
"confidence": "medium",
"safety_score": 90
}
],
"summary": {
"safe": 2,
"error": 0,
"risky": 0,
"blocked": 0
}
}
},
"upsell": {
"id": "bundled-risk-pack",
"name": "Fia Signals Bundled Risk Pack",
"status": "payable_x402_route_live",
"delivers": [
"combined token safety and smart contract risk summary",
"up to 5 Base/EVM contracts from the existing batch payload",
"ranked proceed/caution/reject queue",
"aggregate blocker reasons and warnings",
"buyer-facing next-action memo for swap routers",
"strict proof fields for revenue reconciliation"
],
"price_usdc": "0.50",
"buyer_action": "Use this as the next paid step after any /token-safety, /token-safety/batch, /pre-trade-risk, or /pre-trade-risk/batch hit. Do not buy another isolated starter check when the agent needs a ranked swap decision packet.",
"truth_status": "not_revenue_until_distinct_external_0_50_payment_tx_ref_or_completed_acp_job",
"payable_route": "https://x402.fiasignals.com/bundled-risk-pack",
"starter_routes": [
"https://x402.fiasignals.com/token-safety/batch",
"https://x402.fiasignals.com/contract-risk/batch"
],
"amount_raw_usdc": "500000",
"payable_methods": [
"GET",
"POST"
],
"accepts_ordering": "starter_first_bundle_second",
"non_breaking_policy": "Keep existing 0.03 USDC batch endpoints unchanged. Buyers who want the 0.50 USDC bundle should pay the distinct bundled-risk-pack route.",
"target_buyer_signal": "Repeat buyers using token-safety and contract-risk batch checks who need a larger pre-swap risk packet instead of another isolated 0.03 USDC call.",
"starter_accepts_index": 0,
"preferred_accepts_index": 1,
"starter_amount_raw_usdc": "30000",
"preferred_selection_hint": "Starter buyers can use accepts[0] at 30000 raw USDC. Repeat buyers, multi-token buyers, and agents that already know they need a combined risk memo should select accepts[1] at 500000 raw USDC or pay the distinct bundled-risk-pack route.",
"preferred_amount_raw_usdc": "500000",
"recommended_for_repeat_buyers": true
},
"dedup_alert_discipline": {
"rule": "one reconcile per unique x402 tx_ref across x402_events and x402_sales",
"watcher": "tools/x402_bundle_watch.py",
"suppress": "duplicate alerts for the same tx_ref are operating noise, not new revenue",
"fallback_key": "payment_proof_fingerprint, then endpoint+buyer+amount+timestamp_bucket when tx_ref is missing",
"dedupe_priority": [
"tx_ref",
"payment_proof_fingerprint",
"endpoint+buyer+amount+timestamp_bucket"
]
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"POST"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"token_addresses"
],
"properties": {
"chain": {
"type": "string",
"default": "base"
},
"token_addresses": {
"type": "string",
"description": "Comma-separated EVM token addresses, maximum 5."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type",
"example"
],
"properties": {
"chain": {
"type": "string"
},
"count": {
"type": "integer",
"maximum": 5,
"minimum": 1
},
"limit": {
"type": "integer",
"const": 5
},
"results": {
"type": "array",
"items": {
"type": "object",
"properties": {
"action": {
"type": "string"
},
"reasons": {
"type": "array",
"items": {
"type": "string"
}
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"verdict": {
"enum": [
"safe",
"risky",
"blocked",
"error"
],
"type": "string"
},
"warnings": {
"type": "array",
"items": {
"type": "string"
}
},
"confidence": {
"type": "string"
},
"raw_checks": {
"type": "object"
},
"safety_score": {
"type": "integer",
"maximum": 100,
"minimum": 0
}
}
}
},
"summary": {
"type": "object",
"properties": {
"safe": {
"type": "integer"
},
"error": {
"type": "integer"
},
"risky": {
"type": "integer"
},
"blocked": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}
] UPTIME
RESPONSE TIME
30d UPTIME 96.6%
UPTIME 30D 96.6%
AVG RESP 332ms
TOTAL CHECKS 2,693
RECENT CHECKS
TIME STATUS RESP
● OK 275ms
● OK 303ms
● OK 301ms
● OK 270ms
● OK 307ms
● OK 281ms
● OK 343ms
● OK 322ms
● OK 261ms
● OK 283ms
● OK 289ms
● OK 335ms
○ DOWN 113ms
● OK 328ms
● OK 275ms
● OK 210ms
● OK 303ms
● OK 311ms
OVER TIME
All charts share the 30d window selected here. Every series is also served as JSON at /api/v1/services/fia-signals/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).
PRICE (captured 402, USD)
Median across 7 endpoints. Use the selector to isolate one.
SUB-SCORES (uptime + x402 compliance)
VOLUME (on-chain settlement, USD)
DISTINCT BUYERS
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
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/fia-signals?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/fia-signals.svg" alt="Fia Signals listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/fia-signals?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/fia-signals?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/fia-signals.svg?data=uptime" alt="Fia Signals uptime on x402-list" height="28"> </a>