tensorfeed.ai
Returns a ranked verdict on provider availability and latency reliability.
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.
{
"ok": false,
"error": "payment_required",
"faucet": {
"how": "No payment, no USDC, no gas. Sign an EIP-191 message proving you control a wallet, POST { message, signature }, and receive a bearer token preloaded with 25 trial credits. One grant per wallet. Use it to evaluate any premium endpoint, then top up the same token via /api/payment/buy-credits.",
"cost": "free",
"method": "POST",
"credits": 25,
"endpoint": "/api/payment/trial-credits"
},
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"resource": "https://tensorfeed.ai/api/premium/provider-reliability-verdict"
},
"payTo": "0x549c82e6bfc54bdae9a2073744cbc2af5d1fc6d1",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://tensorfeed.ai/api/premium/provider-reliability-verdict",
"outputSchema": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"schema": {
"type": "object",
"required": [
"freshness",
"billing"
],
"properties": {
"ok": {
"type": "boolean"
},
"stale": {
"type": "boolean"
},
"billing": {
"type": "object",
"description": "credits_charged, credits_remaining and any no_charge_reason for this call."
},
"receipt": {
"type": "object",
"description": "Signed TensorFeed receipt for the call (present once the signing key is bootstrapped)."
},
"freshness": {
"type": "object",
"description": "Data age and SLA for this response: as_of, data_age_seconds, max_age_seconds, fresh, sla_applies."
},
"receipt_status": {
"type": "string"
},
"suggested_next_calls": {
"type": "array"
}
}
},
"example": {
"ok": true,
"billing": {
"credits_charged": 1,
"credits_remaining": 49
},
"ranking": [
{
"note": "measured availability 99 percent, p50 500 ms, p95 900 ms, p95 over p50 spread 1.8x",
"rank": 1,
"ok_pct": 0.99,
"measured": true,
"provider": "anthropic",
"spread_ratio": 1.8,
"total_p50_ms": 500,
"total_p95_ms": 900,
"total_p99_ms": 1400,
"reliability_score": 0.7728
}
],
"verdict": {
"riskiest": "deepseek",
"most_dependable": "anthropic"
},
"coverage": {
"fully_measured": 3,
"providers_ranked": 3,
"availability_only": 0
},
"capturedAt": "2026-05-29T11:55:00Z",
"window_label": "last_24h"
}
}
},
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"resource": "https://tensorfeed.ai/api/premium/provider-reliability-verdict"
},
"payTo": "B8uYDm3snMCAUwt6NWTV3u7akcmd1AWzCXKQ1dDKWcFJ",
"amount": "20000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "https://tensorfeed.ai/api/premium/provider-reliability-verdict",
"outputSchema": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"schema": {
"type": "object",
"required": [
"freshness",
"billing"
],
"properties": {
"ok": {
"type": "boolean"
},
"stale": {
"type": "boolean"
},
"billing": {
"type": "object",
"description": "credits_charged, credits_remaining and any no_charge_reason for this call."
},
"receipt": {
"type": "object",
"description": "Signed TensorFeed receipt for the call (present once the signing key is bootstrapped)."
},
"freshness": {
"type": "object",
"description": "Data age and SLA for this response: as_of, data_age_seconds, max_age_seconds, fresh, sla_applies."
},
"receipt_status": {
"type": "string"
},
"suggested_next_calls": {
"type": "array"
}
}
},
"example": {
"ok": true,
"billing": {
"credits_charged": 1,
"credits_remaining": 49
},
"ranking": [
{
"note": "measured availability 99 percent, p50 500 ms, p95 900 ms, p95 over p50 spread 1.8x",
"rank": 1,
"ok_pct": 0.99,
"measured": true,
"provider": "anthropic",
"spread_ratio": 1.8,
"total_p50_ms": 500,
"total_p95_ms": 900,
"total_p99_ms": 1400,
"reliability_score": 0.7728
}
],
"verdict": {
"riskiest": "deepseek",
"most_dependable": "anthropic"
},
"coverage": {
"fully_measured": 3,
"providers_ranked": 3,
"availability_only": 0
},
"capturedAt": "2026-05-29T11:55:00Z",
"window_label": "last_24h"
}
}
},
"maxTimeoutSeconds": 60
}
],
"message": "This endpoint is strict-premium and does not offer the per-IP free trial. Sign an EIP-3009 transferWithAuthorization via X-PAYMENT or use the credits flow. Free siblings exist for discovery (pricing_series_free, benchmark_series_free, status_uptime_free, status_leaderboard_free, each 7-day-capped).",
"payment": {
"tier": 1,
"wallet": "0x549c82e6bfc54bdae9a2073744cbc2af5d1fc6d1",
"network": "base",
"contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"currency": "USDC",
"credits_per_usd": 50,
"credits_required": 1,
"minimum_amount_usd": 1
},
"resource": {
"url": "https://tensorfeed.ai/api/premium/provider-reliability-verdict",
"mimeType": "application/json",
"description": "Provider Reliability Verdict. One paid call ranks the frontier AI providers TensorFeed actively probes by measured operational reliability, fusing availability (ok rate) and tail consistency (p50 over p95) from its own latency probes into a single dependability ranking. Returns the most dependable and riskiest providers, the full per-provider ranking (availability, p50/p95/p99, spread ratio, score), and an AFTA-signed receipt. The thesis: an agent retry loop feels the tail, not the median. The \"which provider can I depend on right now\" call."
},
"endpoints": {
"info": "/api/payment/info",
"quote": "/api/payment/buy-credits",
"balance": "/api/payment/balance",
"confirm": "/api/payment/confirm"
},
"freshness": {
"verify": "The paid response and its signed receipt carry as_of and data_age_seconds so you can confirm freshness after the call.",
"promise": "This endpoint serves data no older than 30 minutes. If the data behind your paid call is staler than that, you are not charged: the response carries no_charge_reason \"stale_data\" and credits_charged 0.",
"manifest": "/api/freshness",
"max_age_seconds": 1800
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"schema": {
"type": "object",
"required": [
"freshness",
"billing"
],
"properties": {
"ok": {
"type": "boolean"
},
"stale": {
"type": "boolean"
},
"billing": {
"type": "object",
"description": "credits_charged, credits_remaining and any no_charge_reason for this call."
},
"receipt": {
"type": "object",
"description": "Signed TensorFeed receipt for the call (present once the signing key is bootstrapped)."
},
"freshness": {
"type": "object",
"description": "Data age and SLA for this response: as_of, data_age_seconds, max_age_seconds, fresh, sla_applies."
},
"receipt_status": {
"type": "string"
},
"suggested_next_calls": {
"type": "array"
}
}
},
"example": {
"ok": true,
"billing": {
"credits_charged": 1,
"credits_remaining": 49
},
"ranking": [
{
"note": "measured availability 99 percent, p50 500 ms, p95 900 ms, p95 over p50 spread 1.8x",
"rank": 1,
"ok_pct": 0.99,
"measured": true,
"provider": "anthropic",
"spread_ratio": 1.8,
"total_p50_ms": 500,
"total_p95_ms": 900,
"total_p99_ms": 1400,
"reliability_score": 0.7728
}
],
"verdict": {
"riskiest": "deepseek",
"most_dependable": "anthropic"
},
"coverage": {
"fully_measured": 3,
"providers_ranked": 3,
"availability_only": 0
},
"capturedAt": "2026-05-29T11:55:00Z",
"window_label": "last_24h"
}
}
},
"schema": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_oeob8et3"
},
"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
}
}
},
"free_trial": null,
"x402Version": 2,
"flow_options": {
"x402_v2": "Sign an EIP-3009 transferWithAuthorization for the exact `amount` above against USDC on Base mainnet, base64-encode the PaymentPayload, retry with X-PAYMENT header. AgentCore Payments and @coinbase/x402 do this automatically.",
"recommended": "Buy credits once via /api/payment/buy-credits, get a bearer token, use Authorization: Bearer <token> for all future calls (50ms latency).",
"x402_legacy": "Pre-broadcast USDC on Base, retry this request with X-Payment-Tx + X-Payment-Quote headers. TensorFeed-specific fallback; agents on AgentCore Payments use X-PAYMENT instead."
}
}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 0.02 USDC on Base to 0x549c…fc6d1. The signed payment is good for 1 minute.
- Paid to
- 0x549c…fc6d1
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 20000 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
- B8uYDm…KWcFJ
- Token contract
- EPjFWd…TDt1v
- Payment window
- 1 minute
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"resource": "https://tensorfeed.ai/api/premium/provider-reliability-verdict"
},
"payTo": "0x549c82e6bfc54bdae9a2073744cbc2af5d1fc6d1",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://tensorfeed.ai/api/premium/provider-reliability-verdict",
"outputSchema": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"ok": true,
"billing": {
"credits_charged": 1,
"credits_remaining": 49
},
"ranking": [
{
"note": "measured availability 99 percent, p50 500 ms, p95 900 ms, p95 over p50 spread 1.8x",
"rank": 1,
"ok_pct": 0.99,
"measured": true,
"provider": "anthropic",
"spread_ratio": 1.8,
"total_p50_ms": 500,
"total_p95_ms": 900,
"total_p99_ms": 1400,
"reliability_score": 0.7728
}
],
"verdict": {
"riskiest": "deepseek",
"most_dependable": "anthropic"
},
"coverage": {
"fully_measured": 3,
"providers_ranked": 3,
"availability_only": 0
},
"capturedAt": "2026-05-29T11:55:00Z",
"window_label": "last_24h"
}
}
},
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"resource": "https://tensorfeed.ai/api/premium/provider-reliability-verdict"
},
"payTo": "B8uYDm3snMCAUwt6NWTV3u7akcmd1AWzCXKQ1dDKWcFJ",
"amount": "20000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "https://tensorfeed.ai/api/premium/provider-reliability-verdict",
"outputSchema": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"ok": true,
"billing": {
"credits_charged": 1,
"credits_remaining": 49
},
"ranking": [
{
"note": "measured availability 99 percent, p50 500 ms, p95 900 ms, p95 over p50 spread 1.8x",
"rank": 1,
"ok_pct": 0.99,
"measured": true,
"provider": "anthropic",
"spread_ratio": 1.8,
"total_p50_ms": 500,
"total_p95_ms": 900,
"total_p99_ms": 1400,
"reliability_score": 0.7728
}
],
"verdict": {
"riskiest": "deepseek",
"most_dependable": "anthropic"
},
"coverage": {
"fully_measured": 3,
"providers_ranked": 3,
"availability_only": 0
},
"capturedAt": "2026-05-29T11:55:00Z",
"window_label": "last_24h"
}
}
},
"maxTimeoutSeconds": 60
}
]Provenance
- Seen in the source catalog
- 2026-09-23 21:56Z
- Last indexed by Roundhouse
- 2026-09-24 09:15Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 08:45Z
- x402 version
- 2
- Max timeout
- 60s
- 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
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service tensorfeed.ai 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=tensorfeed.ai' 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://tensorfeed.ai/api/premium/provider-reliability-verdict, 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.