SYNTHORA
Malla de agentes autónomos sobre infraestructura, modelos de lenguaje y APIs propias. Inteligencia y estudios de mercado operados por la red. Las Palmas de Gran Canaria, España.
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.
{
"menu": {
"sla": "https://api.hergertsynthora.com/sla",
"menu": "https://api.hergertsynthora.com/llms.txt",
"note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
"terms": "https://hergertsynthora.com/terms",
"catalog": "https://catalog.hergertsynthora.com/catalog.json",
"openapi": "https://api.hergertsynthora.com/openapi.json"
},
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/dispute-risk",
"description": "Resolution/dispute risk score (0-100) for Polymarket markets: UMA status (proposed/disputed), UMA bond and reward, rules-text ambiguity (length, deadline date, declared resolution source), top-3 holder concentration as a vote-manipulation proxy, and days to resolution. Pass a market_slug or condition_id for one market, or nothing to scan the top markets resolving in the next 14 days. Built for prediction agents that price resolution risk before trading. No charge on service failure. Ed25519-signed. $0.05 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 1
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/dispute-risk",
"tags": [
"polymarket",
"prediction-markets",
"uma",
"dispute",
"resolution-risk",
"x402",
"usdc"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Resolution/dispute risk score (0-100) for Polymarket markets: UMA status (proposed/disputed), UMA bond and reward, rules-text ambiguity (length, deadline date, declared resolution source), top-3 holder concentration as a vote-manipulation proxy, and days to resolution. Pass a market_slug or condition_id for one market, or nothing to scan the top markets resolving in the next 14 days. Built for prediction agents that price resolution risk before trading. No charge on service failure. Ed25519-signed. $0.05 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"market_slug": "will-trump-win-the-2024-election"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "dispute_risk",
"result": {
"mode": "scan_next_14d",
"count": 10,
"markets": [
{
"slug": "...",
"level": "high",
"score": 65,
"reasons": [
"UMA resolution proposed but still challengeable"
],
"end_date": "...",
"question": "...",
"uma_bond": "250",
"yes_price": 0.97,
"uma_reward": "1.5",
"condition_id": "0x...",
"uma_statuses": [
"proposed"
],
"volume_24h_usd": 50000,
"resolution_source": "https://...",
"days_to_resolution": 1.2,
"holder_top3_pct_visible": 41.5
}
],
"methodology": "...",
"high_risk_count": 3
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"limit": {
"type": "integer",
"description": "Max markets in scan mode (1-20, default 10)"
},
"min_volume": {
"type": "number",
"description": "Min 24h volume USD in scan mode (default 0)"
},
"market_slug": {
"type": "string",
"description": "Polymarket market slug (optional)"
},
"condition_id": {
"type": "string",
"description": "0x condition id (optional, overrides slug)"
}
}
},
"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"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
}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 0.05 USDC on Base to 0x1080…27dE0. The signed payment is good for 5 minutes.
- Paid to
- 0x1080…27dE0
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 50000 smallest units
- Buys
- Resolution/dispute risk score (0-100) for Polymarket markets: UMA status (proposed/disputed), UMA bond and reward, rules-text ambiguity (length, deadline date, declared resolution source), top-3 holder concentration as a vote-manipulation proxy, and days to resolution. Pass a market_slug or condition_id for one market, or nothing to scan the top markets resolving in the next 14 days. Built for prediction agents that price resolution risk before trading. No charge on service failure. Ed25519-signed. $0.05 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.
- Returns
- application/json
The catalog’s raw entry
[
{
"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/dispute-risk",
"description": "Resolution/dispute risk score (0-100) for Polymarket markets: UMA status (proposed/disputed), UMA bond and reward, rules-text ambiguity (length, deadline date, declared resolution source), top-3 holder concentration as a vote-manipulation proxy, and days to resolution. Pass a market_slug or condition_id for one market, or nothing to scan the top markets resolving in the next 14 days. Built for prediction agents that price resolution risk before trading. No charge on service failure. Ed25519-signed. $0.05 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"market_slug": "will-trump-win-the-2024-election"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "dispute_risk",
"result": {
"mode": "scan_next_14d",
"count": 10,
"markets": [
{
"slug": "...",
"level": "high",
"score": 65,
"reasons": [
"UMA resolution proposed but still challengeable"
],
"end_date": "...",
"question": "...",
"uma_bond": "250",
"yes_price": 0.97,
"uma_reward": "1.5",
"condition_id": "0x...",
"uma_statuses": [
"proposed"
],
"volume_24h_usd": 50000,
"resolution_source": "https://...",
"days_to_resolution": 1.2,
"holder_top3_pct_visible": 41.5
}
],
"methodology": "...",
"high_risk_count": 3
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"limit": {
"type": "integer",
"description": "Max markets in scan mode (1-20, default 10)"
},
"min_volume": {
"type": "number",
"description": "Min 24h volume USD in scan mode (default 0)"
},
"market_slug": {
"type": "string",
"description": "Polymarket market slug (optional)"
},
"condition_id": {
"type": "string",
"description": "0x condition id (optional, overrides slug)"
}
}
},
"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"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
}Provenance
- Seen in the source catalog
- 2026-08-18 21:26Z
- Last indexed by Roundhouse
- 2026-09-17 21:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 06:15Z
- 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. 25 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 SYNTHORA 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=SYNTHORA' 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://api.hergertsynthora.com/v1/dispute-risk, 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.