claude-sonnet-api · x402.agentindex.world
Claude Sonnet API - pay per call, no API key. OpenAI-format chat…
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.
Input
Sample response
Published by the provider. Your run returns a fresh response.
response8 keys
choices1 item
0{ finish_reason, index, message }3 keys
created1790780999
id"gen-1790780999-5D8mNBe2jJJ4gO8UyUsm"
model"anthropic/claude-sonnet-5.5"
object"chat.completion"
provider"Anthropic"
usage4 keys
completion_tokens100
cost0.00132
prompt_tokens160
total_tokens260
x402_receipt4 keys
latency_ms1700
model_served"anthropic/claude-sonnet-5.5"
price_paid_usdc0.001892
upstream"llm/claude-sonnet"
responseobject, 8 keysYour agent can do this on its own
Add the MCP URL in Claude Code, Cursor or Codex. Your agent can run Tools within its spending limits, or ask for approval each time. Connect your agent
Connect your agent
Add one MCP URL and your agent can find and run this tool within its spending limits. Choose “Ask each time” if you want to approve every Call.
MCP URL
https://app.aecon.ai/mcpTerminalbash
In Claude Code, open /mcp, select agentic-economy, then choose Authenticate.
Track record
- Paid calls, last 30 days
- 3
- Buyers, last 30 days
- 3
- Last paid call
Reported by the x402 directory.