Endpoint · inferencePOSTagent402.tools /v1/premium/messages
Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1/premium and pay $0.50 per call in USDC, no API…
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Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1/premium and pay $0.50 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Messages wire (Claude natively, others translated). Depth: `effort` (low..max) on Claude 4.7+, thinking.budget_tokens on older Claude.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.50 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://agent402.tools/v1/premium/messages
MCP server on this host: io.github.MikeyPetrillo/agent402
Seen
first 22 days ago · last 12 hr ago
40 free handshakes
Payment
Pays through
x402 · MPP evm, stripe, tempo
Offered on?
algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, eip155:10, eip155:1329, Polygon, eip155:143, Arbitrum, eip155:42220, Avalanche, Robinhood Chain, Base USDC, Solana, stellar:pubnet, Tempo USDC.e
Listed on?
Polygon, Arbitrum, Avalanche, Base, Solana
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.705 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.295: 0.174 uncertain ? + 0.120 short ? · 0.095 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.40 | 0.000 | 0.000 | −0.120 | −0.080 | |
| liveness it answered at all |
0.60 | 1.00 | 0.842 | 0.505 | 0 | −0.095 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.705 | gap to 1.000 = 0.295 · 0.120 short · 0.174 uncertain | 0.705 | −0.120 | −0.174 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.000 latency p95
+ 0.600 × 0.842 liveness
+ 0.200 × 1.000 price stability
= 0.705 → UNRATED: 39 of 30 paid calls weights 2026.09.6 · 39 samples · seed cap_01M2A29A5R0CWM571AKXBZ27XP|2026-09-03T10:42:21.759Z|2026.09.6
Verify it yourself
npx teppi-check https://agent402.tools/v1/premium/messagescurl -s https://api.teppi.xyz/v1/trust/cap_01M2A29A5R0CWM571AKXBZ27XP