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MCP live MCP 2025-03-26 http

CallMeter

dammyg/callmeter

Near-term paid hop: draft or validate JSON Schema (transform.json_schema ≈ $0.02) via x402 USDC on Base. Unpaid tools/call or POST /v1/agentutils/schema → HTTP 402. Discovery: https://api.callmeter.dev/.well-known/x402 Receipt→JSON (parse.receipt ≈ $0.10) remains demo/depth — demo: https://api.callmeter.dev/demo/receipt-to-json CallMeter is crypto-only by default. Prepaid fiat packs are closed. Existing prepaid balances still debit if present; new charges use x402. tools/list is free; tools/call is paid. Fail-closed — never charged on failed fulfillment. Also: tax invoices, structured extract, webpage extract, screenshots, PDF text, webhook relay/replay. MCP: https://api.callmeter.dev/mcp Homepage: https://api.callmeter.dev/ Pricing: https://api.callmeter.dev/pricing

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Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
874ms
last probe
Tools
9
callable
Resources
4
readable
Prompts
5
available
Primary URL
https://api.callmeter.dev/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
9 tools, 4 resources, 5 prompts returned.
pass 3 or more catalogue items 10/10
18 items in total; 3 or more earns these points.
pass Describes itself 10/10
781 characters; more than 30 earns these points.

Tools · 9

extract.structured_data

Extract structured JSON (emails, phones, URLs, key-values, or schema-shaped fields) from messy plain text or HTML. Call when the agent already has document text/HTML and needs machine-readable fields …

extract.webpage

Fetch a public http(s) URL and return structured page facts as JSON (SSRF and robots checks refuse unsafe URLs). Call when the agent has a page URL to understand — not when text/HTML is already in han…

transform.json_schema

Draft a JSON Schema from a sample object, or validate an instance against a schema, in one call. Call before writes when you need a deterministic schema or a cheap validity check — cheaper and more pr…

capture.screenshot

Render a public URL to a PNG/JPEG screenshot for vision, QA, or audit evidence. Call when you need pixels — not structured text (use extract.webpage) and not PDF bytes (use extract.pdf). Inputs: requi…

extract.pdf

Extract page text and heuristic tables from a base64-encoded PDF for downstream reasoning. Call for general PDF text hops — receipt/invoice field extraction belongs to parse.receipt / parse.invoice. I…

parse.receipt

Parse a till slip, POS printout, supermarket receipt, or mobile-money payment confirmation into stable merchant / date / currency / subtotal / tax / total / line_items / confidence / warnings JSON. Tu…

parse.invoice

Parse a tax invoice or commercial invoice into the AfricaInvoiceReceipt contract: seller (TIN / KRA PIN / VAT no), issued date, currency, line items, VAT rate/amount, subtotal, total, payment refs, co…

relay.webhook

Relay a third-party webhook into CallMeter: verify HMAC or shared secret, dedupe by delivery id, store the payload, and forward to the endpoint's destinations with retries. Charges 0.01 credits ($0.00…

replay.webhook

Replay a stored webhook delivery through the same forward/retry pipeline after your consumer was down. Requires API key. Charges 0.01 credits ($0.0001) per forward; see the billing note for failed cal…

Resources · 4

pricing

Credit peg, skill prices, settlement address, MCP/OpenAPI links.

https://api.callmeter.dev/pricing
llms_txt

Machine-readable overview of CallMeter tools, auth, and endpoints.

https://api.callmeter.dev/llms.txt
examples

Curl and client examples for initialize, tools/list, tools/call, and x402.

https://api.callmeter.dev/examples
openapi

OpenAPI for REST product routes behind CallMeter.

https://api.callmeter.dev/openapi.json

Prompts · 5

schema_transform_workflow

Near-term paid hop: draft or validate JSON Schema via transform.json_schema ≈ $0.02 (unpaid → 402).

receipt_to_json

Demo/depth: parse a till slip or mobile-money receipt with parse.receipt ≈ $0.10.

invoice_to_json

Extract tax invoice fields with parse.invoice.

webpage_to_json

Fetch and structure a public page with extract.webpage (url required).

webhook_relay

Forward with relay.webhook or redrive with replay.webhook.

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://api.callmeter.dev/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "callmeter": {
      "url": "https://api.callmeter.dev/mcp",
      "transport": "http"
    }
  }
}