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Production APIs,
documented and metered.

A curated catalogue of APIs with real documentation, one key that works everywhere, per-request pricing you can read off the response header, and a hosted MCP server for every listing.

Free monthly allowance on every API · No subscription · Credit never expires

curl -X GET "https://www.twotic.dev/v1/web-extract/extract?url=https://example.com" \
  -H "Authorization: Bearer $TWOTIC_KEY"

APIs ready to call

Every listing ships with full reference documentation, worked examples, and an MCP server.

View all

Three steps to your first call

No sales call, no contract, no per-API onboarding.

Create one key

Sign in and generate a key. It works across every API in the catalogue — subscribing to a new one never means a new credential.

Fund your balance

Top up with a card in US dollars. Credit is prepaid, spent per request, and never expires. Every API includes a free monthly allowance before you spend anything.

Call and watch the meter

Each response carries the exact cost and your remaining rate limit. The dashboard breaks spend down per endpoint and per day.

Model Context Protocol

Every API is also an agent tool

Each listing publishes a hosted MCP server. Point Claude, Cursor or any MCP client at it and the endpoints appear as callable tools — with descriptions written for a model deciding which one to reach for, not lifted from the developer docs.

Agent calls run through the same gateway as everything else, so they are authenticated, rate limited, priced and logged identically. No separate integration and no separate bill.

tools/list
  • GET

    email-verify_verify

    Verify a single email address

  • POST

    email-verify_verify-batch

    Verify up to 100 addresses in one call

  • GET

    link-preview_preview

    Unfurl a URL into link card metadata

  • GET

    qr_generate

    Generate a QR code

By category

Before you integrate

How does pricing work?+

Every API is priced per request, and each one includes a free monthly allowance. You buy credit up front and each call draws from it — there is no subscription, no monthly minimum, and unused credit does not expire. A call that fails because our gateway or the upstream service failed is refunded automatically.

Do I need a separate key for each API?+

No. One Twotic key works across every API in the catalogue. Subscribe to an API from its page and your existing key starts working against it immediately.

What is the MCP server for?+

Every API on Twotic is also published as a Model Context Protocol server, so Claude, Cursor, ChatGPT and other agents can call its endpoints as tools without you writing an integration. Point the client at https://twotic.dev/api/mcp/<api> with your key and the endpoints appear as callable tools.

What happens if I run out of credit?+

Calls return HTTP 402 with a message telling you the balance and the cost of the call. Nothing is deleted and no keys are revoked — top up and the same key resumes working immediately.

Can I see what I am being charged for?+

Yes. Every response carries an X-Twotic-Cost header with the exact amount debited, and the dashboard breaks usage down per API, per endpoint and per day alongside a log of recent requests.