Agent Extraction API: LLM token + cost calculator across models
Token & cost calculator: estimate tokens for a text (or pass input_tokens/output_tokens) and price it across several models using provider list prices (LiteLLM price table, MIT). Params: models (comma list of model ids like gpt-4o-mini, claude-sonnet-4-5, gemini/gemini-2.5-flash or search words, max 15), text or input_tokens, output_tokens, calls.
1 route settlement-verified · $0.005 USDC/request · 1 endpoint · Data · base network · x402 protocol
Verified routes
GET /api/llm-cost· $0.005 · 2026-10-26 · receipt
Other routes are unverified.
Networks: Base (settlement-verified)
Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.
url https://payapi.market/mcpListing facts
- Provider
- FreeTier Agent API
- Hosted at
freetier-agent-api.pages.dev- Category
- Data
- Price
- $0.005 USDC per request
- Payment networks
- Base
- Settlement-verified
- 1 route, last checked 2026-10-26
- Listed on PayAPI Market
- 2026-10-26
Try Agent Extraction API: LLM token + cost calculator across models
Call a verified route without paying first. The server should answer HTTP 402 Payment Required with the price, the USDC asset, the network and the wallet to pay. An x402 client pays that amount on Base and retries with the payment header.
curl -i "https://freetier-agent-api.pages.dev/api/llm-cost?models=gpt-4o-mini%2Cclaude-sonnet-4-5%2Cgemini%2Fgemini-2.5-flash&input_tokens=1200&output_tokens=300&calls=1000&nofree=1"About this API
Agent Extraction API: LLM token + cost calculator across models is listed in the Data category with pricing at $0.005 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-10-26. View receipt on Basescan.
Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.
This API exposes 1 endpoint.
Questions about this API
What does Agent Extraction API: LLM token + cost calculator across models do?
Token & cost calculator: estimate tokens for a text (or pass input_tokens/output_tokens) and price it across several models using provider list prices (LiteLLM price table, MIT). Params: models (comma list of model ids like gpt-4o-mini, claude-sonnet-4-5, gemini/gemini-2.5-flash or search words, max 15), text or input_tokens, output_tokens, calls. It is provided by FreeTier Agent API.
How much does Agent Extraction API: LLM token + cost calculator across models cost?
Agent Extraction API: LLM token + cost calculator across models is priced at $0.005 USDC per request, paid per call with no subscription. PayAPI Market paid 0.005 USDC for one call to /api/llm-cost when it verified the listing. The exact amount for each call is in the HTTP 402 response before any money moves.
Do I need an API key or account to use Agent Extraction API: LLM token + cost calculator across models?
No. Agent Extraction API: LLM token + cost calculator across models uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.
Has Agent Extraction API: LLM token + cost calculator across models been verified?
Yes, 1 route. PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC settlement on-chain, most recently on 2026-10-26.
How does an AI agent find Agent Extraction API: LLM token + cost calculator across models?
Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.
More Data APIs · Browse the marketplace · List your own API
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