SolSigs
payment-ready until 2026-10-24
Real-time Solana data APIs plus ProofGuard receipts for AI agents: 22 specialist workers paid per call in USDC via x402 - DEX prices, arbitrage, wallet intelligence, launch detection, plus signed trust scores and payment/fulfillment receipts.
Call it x402 v2
x402 v2
- Base URL
- https://solsigs.com
- Payment
- x402 v2, header channel
$ curl -i -X POST 'https://solsigs.com/arb' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 22 paid routes on solsigs.com
14 more in Example 402 response
Prices as captured in the 402 response: median $0.004 across the 22 endpoints.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| POST | / | Webhook-based alert system · register callbacks for price thresholds, volume spikes, whale movements | $0.005 | Solana | USDC | header | since 06-16 |
| POST | / | Alpha feed · new token launches + insider/smart-money wallet activity signals for first-mover edge | $0.006 | Solana | USDC | header | since 06-16 |
| POST | / | Cross-DEX arbitrage scanner v2 with MEV scoring and sandwich detection · profitable trade opportunities with risk analysis | $0.01 | Solana | USDC | header | since 06-16 |
| POST | / | Protocol developer activity · GitHub commit frequency, contributor counts, audit status for Solana projects | $0.001 | Solana | USDC | header | since 06-16 |
| POST | / | Solana DEX price data · real-time prices, liquidity, and volume across Jupiter + Birdeye | $0.002 | Solana | USDC | header | since 06-16 |
| POST | / | New token launch detection · spot fresh deployments and snipe opportunities on pump.fun and Raydium | $0.003 | Solana | USDC | header | since 06-16 |
| POST | / | NFT floor prices, rarity data, wash trading detection · collections from Tensor, Magic Eden, and Solanart | $0.004 | Solana | USDC | header | since 06-16 |
| POST | / | Perpetuals intelligence · Jupiter Perps + Drift markets, funding rates, open interest, max leverage | $0.005 | Solana | USDC | header | since 06-16 |
| POST | / | Polymarket prediction market data · odds, volume, liquidity across political, crypto, sports, and more | $0.003 | Solana | USDC | header | since 06-16 |
| POST | / | Batch multi-token pricing · real-time prices, OHLCV candlestick history, and token metadata across Jupiter + Birdeye | $0.003 | Solana | USDC | header | since 06-16 |
| POST | / | SolSigs ProofGuard endpoint trust evaluation · route-level trust score, payment expectation receipt, fulfillment receipt, and refund evidence package for paid agent endpoints. 0.003 USDC. | $0.003 | Solana | USDC | header | since 07-01 |
| POST | / | Pay-per-call Solana RPC relay · shared Helius endpoint with built-in rate limiting | $0.001 | Solana | USDC | header | since 06-16 |
| POST | / | Smart money wallet tracking · top Solana traders, copy-trade signals, portfolio analysis | $0.008 | Solana | USDC | header | since 06-16 |
| POST | / | On-chain social sentiment · .sol namespace activity, influencer wallet tracking, engagement scoring | $0.004 | Solana | USDC | header | since 06-16 |
| POST | / | Cross-protocol staking APY comparison · Marinade, Jito, Blaze, Sanctum rates in real-time | $0.002 | Solana | USDC | header | since 06-16 |
| POST | / | AI-powered plain-English market summary · turn raw Solana data into readable insights | $0.008 | Solana | USDC | header | since 06-16 |
| POST | / | Token safety audit · rug pull detection, LP lock verification, holder analysis, mint/freeze authority checks | $0.005 | Solana | USDC | header | since 06-16 |
| POST | / | Rug-screen verdict for a Solana token. Composes mint/freeze authority, holder concentration, LP lock, wash-trading and smart-money signals into one GO / CAUTION / NO-GO score with reasons. Built to screen new launches and memecoins for rug risk · established tokens that intentionally keep mint/freeze authority (e.g. USDC, USDT) read NO-GO by design. 0.35 USDC. | $0.35 | Solana | USDC | header | since 07-01 |
| POST | / | Trending token feed · real-time hot tokens by volume, price action, and social traction | $0.004 | Solana | USDC | header | since 06-16 |
| POST | / | Wallet trust/reputation score · age, DEX history, scam flags, balance signals for counterparty risk | $0.003 | Solana | USDC | header | since 06-16 |
| POST | / | Wallet risk scoring and transaction analysis · detect suspicious patterns, wash trading, and rug risks | $0.005 | Solana | USDC | header | since 06-16 |
| POST | / | Whale and smart money wallet tracking · large transfers, accumulation signals, copy-trade discovery | $0.006 | Solana | USDC | header | since 06-16 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
Payload 5 of 7 captured by the monitor for POST /arb.
32 lines, scroll inside
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"tags": [
"solana",
"defi",
"arbitrage",
"mev"
],
"decimals": 6,
"serviceName": "SolSigs"
},
"payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "http://solsigs.com/arb",
"description": "Cross-DEX arbitrage scanner v2 with MEV scoring and sandwich detection — profitable trade opportunities with risk analysis",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "http://solsigs.com/arb",
"description": "Cross-DEX arbitrage scanner v2 with MEV scoring and sandwich detection — profitable trade opportunities with risk analysis"
},
"x402Version": 2
} Other captured 402 responses (6)
Captured payload 1 of 7
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"tags": [
"prediction",
"polymarket",
"markets"
],
"decimals": 6,
"serviceName": "SolSigs"
},
"payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
"amount": "3000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "http://solsigs.com/predict",
"description": "Polymarket prediction market data — odds, volume, liquidity across political, crypto, sports, and more",
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "http://solsigs.com/predict",
"description": "Polymarket prediction market data — odds, volume, liquidity across political, crypto, sports, and more"
},
"x402Version": 2
}Captured payload 2 of 7
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"tags": [
"solana",
"ai",
"analytics"
],
"decimals": 6,
"serviceName": "SolSigs"
},
"payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
"amount": "8000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "http://solsigs.com/summary",
"description": "AI-powered plain-English market summary — turn raw Solana data into readable insights",
"maxAmountRequired": "8000",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "http://solsigs.com/summary",
"description": "AI-powered plain-English market summary — turn raw Solana data into readable insights"
},
"x402Version": 2
}Captured payload 3 of 7
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"tags": [
"solana",
"wallet",
"risk"
],
"decimals": 6,
"serviceName": "SolSigs"
},
"payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "http://solsigs.com/wallet",
"description": "Wallet risk scoring and transaction analysis — detect suspicious patterns, wash trading, and rug risks",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "http://solsigs.com/wallet",
"description": "Wallet risk scoring and transaction analysis — detect suspicious patterns, wash trading, and rug risks"
},
"x402Version": 2
}Captured payload 4 of 7
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"tags": [
"solana",
"defi",
"dex"
],
"decimals": 6,
"serviceName": "SolSigs"
},
"payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "http://solsigs.com/dex",
"description": "Solana DEX price data — real-time prices, liquidity, and volume across Jupiter + Birdeye",
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "http://solsigs.com/dex",
"description": "Solana DEX price data — real-time prices, liquidity, and volume across Jupiter + Birdeye"
},
"x402Version": 2
}Captured payload 6 of 7
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"tags": [
"solana",
"tokens",
"launches"
],
"decimals": 6,
"serviceName": "SolSigs"
},
"payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
"amount": "3000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "http://solsigs.com/launches",
"description": "New token launch detection — spot fresh deployments and snipe opportunities on pump.fun and Raydium",
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "http://solsigs.com/launches",
"description": "New token launch detection — spot fresh deployments and snipe opportunities on pump.fun and Raydium"
},
"x402Version": 2
}Captured payload 7 of 7
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"tags": [
"solana",
"rpc",
"infrastructure"
],
"decimals": 6,
"serviceName": "SolSigs"
},
"payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "http://solsigs.com/rpc",
"description": "Pay-per-call Solana RPC relay — shared Helius endpoint with built-in rate limiting",
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "http://solsigs.com/rpc",
"description": "Pay-per-call Solana RPC relay — shared Helius endpoint with built-in rate limiting"
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
#8 of 76 in Blockchain. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 100% uptime 30d
- Compliance
- A 13/13 checks pass
- Price
- $0.001 to $0.35 p14 in Blockchain
- Risk
- clean no risk flag
- Traction
- $0.00 30d 0 buyers
13/13 compliance checks
- 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
402 terms unchanged since 2026-06-16. Last up 2026-10-17.
── Site signals
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
How the score works
What the score read on this service: status online, 100% uptime 30d, 146ms response p95, x402 compliance 13 of 13, $0.001 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.
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.
It is a score inside Blockchain, 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 76 listings, this one among them: the same 76 the position above is counted against. When the two differ, the field is the wider one, 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.
Traction is a conservative undercount.
All measured facts
What it does
Real-time Solana data APIs plus ProofGuard receipts for AI agents: 22 specialist workers paid per call in USDC via x402 - DEX prices, arbitrage, wallet intelligence, launch detection, plus signed trust scores and payment/fulfillment receipts. No API keys, no subscriptions.
SolSigs is a listed x402 Blockchain API. Captured payment terms name Solana. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.
Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.
Page rendered at . This response time is separate from the observation and computation times attached to each measurement.
Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.
Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.
Observed daily coverage: 2026-09-18 to 2026-10-17 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.
Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.
x402 List home · Services · Blockchain
- uptime · latest daily rollup
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 146ms
- avg response
- 166ms
- total checks
- 2,710
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
- price (min)
- $0.001
- price (max)
- $0.35
- category percentile (min)
- p14 in Blockchain
- category percentile (max)
- p87 in Blockchain
- endpoints / prices
- 22 / 9
- model
- tiered
- stability
- 100%
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
- 202d
- registrar
- Cloudflare, Inc.
- hosting
- custom
- domain created
- 2026-03-25
Identity facts, not a risk score.
- assessment volume 30d
- $0.00
- exact assessment volume 30d (USD)
- 0
- assessment recorded at (UTC)
- 2026-10-17T06:43:04.065Z
- buyers 30d
- 0
- settlements 30d
- 0
- measured since
- --- (start of our harvest window)
- last settlement
- ---
- top buyer share
- -
- top 3 buyers share
- -
- concentrated volume
- no
- trend 7d vs 30d
- -
- networks
- solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.
- member since
- 2026-06-01
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Online | 402 | 169ms | 22 | |
| Online | 402 | 149ms | 22 | |
| Online | 402 | 76ms | 22 | |
| Online | 402 | 207ms | 22 | |
| Online | 402 | 128ms | 22 | |
| Online | 402 | 101ms | 22 | |
| Online | 402 | 73ms | 22 | |
| Online | 402 | 113ms | 22 | |
| Online | 402 | 87ms | 22 | |
| Online | 402 | 101ms | 22 | |
| Online | 402 | 113ms | 22 | |
| Online | 402 | 89ms | 22 | |
| Online | 402 | 86ms | 22 | |
| Online | 402 | 98ms | 22 | |
| Online | 402 | 96ms | 22 | |
| Online | 402 | 95ms | 22 | |
| Online | 402 | 79ms | 22 | |
| Online | 402 | 93ms | 22 |
Changes0 in 30d
No changes recorded in the last 30 days.
Over time
- Volume 30d
- $0.00
- Uptime
- 100% on all 29 completed days
More charts
09-18 to 10-17* UTC
Scores over time
09-18 to 10-17* UTC
09-18 to 10-17* UTC
09-18 to 10-17* UTC
Scores: one day per column, 09-18 to 10-17*, on the columns of Response time. Uptime held 100% every day in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.
Each series spans only the dates it has data for. Every series is also served as JSON at /api, /scores, /volume and /buyers.
Values
* today so far, partial (UTC).
The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.
Daily snapshot total, no volume data in the last 30d. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.
Daily address snapshots: 2026-09-18 to 2026-10-17 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.
Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.
Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.
| Day | Volume | Buyers | Settlements | Uptime | Response | Compliance | Price percentile | Site signals |
|---|---|---|---|---|---|---|---|---|
| 2026-09-18 | no data | no data | no data | 100% | 130.96ms | 13/13 | p18 | 3/6 |
| 2026-09-19 | no data | no data | no data | 100% | 169.69ms | 13/13 | p18 | 3/6 |
| 2026-09-20 | no data | no data | no data | 100% | 148.52ms | 13/13 | p18 | 3/6 |
| 2026-09-21 | no data | no data | no data | 100% | 161.50ms | 13/13 | p18 | 3/6 |
| 2026-09-22 | no data | no data | no data | 100% | 200.90ms | 13/13 | p18 | 3/6 |
| 2026-09-23 | no data | no data | no data | 100% | 189.44ms | 13/13 | p17 | 3/6 |
| 2026-09-24 | no data | no data | no data | 100% | 152.62ms | 13/13 | p17 | 3/6 |
| 2026-09-25 | no data | no data | no data | 100% | 150.09ms | 13/13 | p16 | 3/6 |
| 2026-09-26 | no data | no data | no data | 100% | 222.57ms | 13/13 | p16 | 3/6 |
| 2026-09-27 | no data | no data | no data | 100% | 145.62ms | 13/13 | p16 | 3/6 |
| 2026-09-28 | no data | no data | no data | 100% | 240.80ms | 13/13 | p16 | 3/6 |
| 2026-09-29 | no data | no data | no data | 100% | 251.90ms | 13/13 | p15 | 3/6 |
| 2026-09-30 | no data | no data | no data | 100% | 219.38ms | 13/13 | p15 | 3/6 |
| 2026-10-01 | no data | no data | no data | 100% | 188.51ms | 13/13 | p15 | 3/6 |
| 2026-10-02 | no data | no data | no data | 100% | 158.09ms | 13/13 | p15 | 3/6 |
| 2026-10-03 | no data | no data | no data | 100% | 222.88ms | 13/13 | p15 | 3/6 |
| 2026-10-04 | no data | no data | no data | 100% | 227.60ms | 13/13 | p14 | 3/6 |
| 2026-10-05 | no data | no data | no data | 100% | 307.16ms | 13/13 | p14 | 3/6 |
| 2026-10-06 | no data | no data | no data | 100% | 203.66ms | 13/13 | p14 | 3/6 |
| 2026-10-07 | no data | no data | no data | 100% | 186.80ms | 13/13 | p14 | 3/6 |
| 2026-10-08 | no data | no data | no data | 100% | 173.80ms | 13/13 | p15 | 3/6 |
| 2026-10-09 | no data | no data | no data | 100% | 122.92ms | 13/13 | p15 | 3/6 |
| 2026-10-10 | no data | no data | no data | 100% | 109.66ms | 13/13 | p15 | 3/6 |
| 2026-10-11 | no data | no data | no data | 100% | 112.51ms | 13/13 | p15 | 3/6 |
| 2026-10-12 | no data | no data | no data | 100% | 121.27ms | 13/13 | p15 | 3/6 |
| 2026-10-13 | no data | no data | no data | 100% | 76.69ms | 13/13 | p15 | 3/6 |
| 2026-10-14 | no data | no data | no data | 100% | 94.19ms | 13/13 | p14 | 3/6 |
| 2026-10-15 | no data | no data | no data | 100% | 98.97ms | 13/13 | p14 | 3/6 |
| 2026-10-16 | no data | no data | no data | 100% | 95.29ms | 13/13 | p14 | 3/6 |
| 2026-10-17* | no data | no data | no data | 100% | 94.92ms | 13/13 | p14 | 3/6 |
Alternatives in Blockchain
5 of 75 other ranked services in Blockchain, ordered by the same measured score.
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Delisting
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