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API usage and billing endpoints, provider by provider

Every provider meters differently, and most don't tell you where you stand. Each page below is the real call: endpoint, auth header, the fields that matter, and what breaks.

Of the 28 metered APIs Argus connects to, 17 expose a balance or remaining quota, only 2 (Anthropic and OpenAI) expose a spend history, 3 report the exact cost on every response, and 8 have no billing API at all, so their spend can only be measured from your side.

LLMs

AnthropicAPI exposes daily spend, per-model costDeepSeekAPI exposes balanceGoogle Geminino billing API; Argus derives cost from pricingOpenAIAPI exposes daily spend, per-project cost, planOpenRouterAPI exposes balance, planPerplexityno billing API; cost is reported on every response

Search

Exano billing API; cost is reported on every responseFirecrawlAPI exposes balance, planParallelno billing API; Argus derives cost from pricingTavilyAPI exposes balance, plan

Scraping

ApifyAPI exposes balance, planBright DataAPI exposes balance

Enrichment

Apollo.ioAPI exposes balanceHunter.ioAPI exposes balance, planLeadMagicAPI exposes balancePeople Data LabsAPI exposes balanceProspeoAPI exposes balance

Company data

CoresignalAPI exposes balanceCrunchbaseno billing API; Argus derives cost from pricingCrustdataAPI exposes balance, plan

Email

InstantlyAPI exposes balance, planMillionVerifierAPI exposes balancePostmarkno billing API; Argus derives cost from pricingSendGridAPI exposes plan

CRM

HubSpot Breezeno billing API; Argus derives cost from pricing

Infrastructure data

Google Placesno billing API; Argus derives cost from pricingSecurityTrailsAPI exposes balance, planWhoisXML APIAPI exposes balance

Not listed?

Any API your app calls can still be tracked. Send per-call events through the ingest API and Argus prices them from the endpoint and units.

Let your coding agent watch the meter.

Connect a provider key, point Claude Code or Cursor at the Argus MCP server, and ask what the last run cost.

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