claude-sonnet

Claude Sonnet API - pay per call, no API key.

Claude Sonnet API - pay per call, no API key. OpenAI-format chat completions on anthropic/claude-sonnet-5.5, pinned to Anthropic's own OpenRouter endpoint for reliability. You sign a fixed price computed from your max_tokens; unused tokens are not refunded. 20s server-side timeout - never charged if it fires; set your client timeout to 30s. Try GET /llm/claude-sonnet/sample.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.001892 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x3cedc3cb…607b45ec

URL

https://x402.agentindex.world/llm/claude-sonnet

MCP server on this host: world.agentindex/x402

Seen

first 3 days ago · last 17 hr ago

5 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Handshakescomputed 15 hr ago

0.200 from 5 free handshakes over 30 days · UNRATED ?

How the composite of 0.200 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	1.00	0.000		0.000	0	−0.600
latency p95 it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.200	gap to 1.000 = 0.800 · 0.200 short · 0.600 uncertain	0.200	−0.200	−0.600

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

BURN_INFREE_TIER_ONLY

Verify it yourselfnpx teppi-check https://x402.agentindex.world/llm/claude-sonnetcurl -s https://api.teppi.xyz/v1/trust/cap_01M3TZYNDEVAGH7KV3WV64AD1G