WaterPulse
Global water intelligence API. 9 endpoints covering US groundwater (USGS), streamflow, drought (US Drought Monitor), water quality (EPA WQP), aquifer sustainability,…
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "X-PAYMENT header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://waterpulse.theaslangroupllc.com/api/water/global-stress",
"description": "Global water stress intelligence for risk and investor agents. Covers freshwater availability, groundwater depletion, transboundary conflict risk, and investment and operational implications for any region.",
"maxAmountRequired": "150000",
"maxTimeoutSeconds": 300
}
],
"x402Version": 1
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.15 USDC on Base to 0x50ab…912fc. The signed payment is good for 5 minutes.
- Paid to
- 0x50ab…912fc
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 150000 smallest units
Pay 0.15 USDC on Base to 0x50ab…912fc. The signed payment is good for 168 hours.
- Paid to
- 0x50ab…912fc
- USD Coin contract
- 0x8335…02913
- Payment window
- 168 hours
- As published
- 150000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 985iFj…B5KX1
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x50ab…912fc
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x50ab…912fc
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x50ab…912fc
- Token contract
- 0x79A0…D24D1
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x50ab…912fc
- Token contract
- 0x7547…fb603
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x50ab…912fc
- Token contract
- 0x779d…13736
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x50ab…912fc
- Token contract
- 0xb883…a630f
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 62A253…WGI7I
- Token contract
- 31566704
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- rMnHeu…PEh32
- Token contract
- XRP
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- rMnHeu…PEh32
- Token contract
- 524C55…00000
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x50ab…912fc
- Token contract
- 0x8d0D…08B0d
- Payment window
- 5 minutes
The catalog’s raw entry
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"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
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{
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{
"asset": "0x79A02482A880bCe3F13E09da970dC34dB4cD24D1",
"extra": {
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{
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{
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"payTo": "62A253YPATFNJCPRKID3FKD77MYJFNTVRYRP4B4JWG36EGLPY7UXFWGI7I",
"amount": "150000",
"scheme": "exact",
"network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
"maxTimeoutSeconds": 300
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{
"asset": "XRP",
"extra": {
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"sourceTag": 804681468
},
"payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
"amount": "150000",
"scheme": "exact",
"network": "xrpl:0",
"maxTimeoutSeconds": 300
},
{
"asset": "524C555344000000000000000000000000000000",
"extra": {
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"payTo": "rMnHeutYALco8RYFVcmuU4BCgSzBpPEh32",
"amount": "0.15",
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{
"asset": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
"extra": {
"name": "World Liberty Financial USD",
"version": "1",
"signerAddress": "0x34F7a661160780Ce1346e6D7B96D2bE244590899",
"assetTransferMethod": "eip3009"
},
"payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
"amount": "150000000000000000",
"scheme": "exact",
"network": "eip155:56",
"maxTimeoutSeconds": 300
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]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"lang": "en",
"focus": "all",
"region": "India"
}
},
"output": {
"type": "json",
"example": {
"query_summary": {
"focus": "all",
"region": "India",
"wri_baseline_water_stress": "Extremely High"
},
"regional_hotspots": [
{
"issue": "Green Revolution aquifer depletion — water table falling 1 meter/year",
"region": "Punjab/Haryana",
"urgency": "Critical"
},
{
"issue": "Day Zero near-event 2019 — 4 major reservoirs ran dry",
"region": "Chennai",
"urgency": "High"
},
{
"issue": "Chronic drought + migration — 3.5M displaced since 2000",
"region": "Bundelkhand",
"urgency": "High"
}
],
"climate_trajectory": "1.5°C warming reduces Himalayan glacial meltwater by 36% by 2060 — permanent reduction in summer river flows across northern India",
"transboundary_risk": {
"rivers": [
"Indus (India-Pakistan)",
"Brahmaputra (China-India-Bangladesh)"
],
"treaties": "Indus Waters Treaty under stress; no comprehensive Brahmaputra agreement",
"conflict_risk": "Moderate-High"
},
"water_stress_profile": {
"stress_level": "Extremely High (>80% withdrawal ratio)",
"global_average_m3": 5740,
"aquifer_depletion_rate": "Northwest India losing 4 cm/year of groundwater (GRACE satellite)",
"groundwater_dependency": "89% of rural domestic water from groundwater",
"annual_renewable_freshwater_per_capita_m3": 1421
},
"investment_implications": {
"industry": "Data centers, semiconductor fabs, and textile factories face operational risk in high-stress zones",
"agriculture": "Punjab/Haryana cropland values at risk from water scarcity within 15-20 years",
"opportunity": "Drip irrigation, water recycling, and desalination markets growing 12% annually"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"lang": {
"type": "string",
"description": "en | es | fr | de | ja | zh | ko | pt | ar (default: en)"
},
"focus": {
"type": "string",
"description": "agriculture | municipal | industrial | conflict | investment (default: all)"
},
"region": {
"type": "string",
"description": "Country, region, or river basin — e.g. \"India\" | \"Middle East\" | \"Nile Basin\" | \"Murray-Darling Australia\" | \"Yellow River China\""
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_gxy6qn5p"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
}Provenance
- Seen in the source catalog
- 2026-08-20 14:03Z
- Last indexed by Roundhouse
- 2026-09-19 13:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 02:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 27 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service WaterPulse and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=WaterPulse' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://waterpulse.theaslangroupllc.com/api/water/global-stress, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.