Bird
Bird

A world of possibilities.
One place to start.

LOOKUP / RECIPIENT INTELLIGENCE

Know the destination.
Choose the next step.

Choose the evidence your next decision needs. Inspect a phone number or one email address, then keep quality, possession and consent distinct.

LOOKUP / EVIDENCE FOR YOUR NEXT STEP

Two recipients.
Different questions.

Illustrative evidence for one signup. Neither result proves possession or consent.

PHONE / ROUTING EVIDENCE

Mobile · roaming unavailable

{
  "phone_number": "+12025550142",
  "line_type": "mobile",
  "flags": [],
  "roaming": {
    "status": "unavailable"
  }
}

Offer an eligible verification route; missing roaming is not false. One answered baseline, no roaming charge.

Inspect phone results ↗
EMAIL / ADDRESS QUALITY

Favorable address evidence

{
  "email": "alex@gmail.com",
  "valid": true,
  "result": "valid",
  "delivery_confidence": 96,
  "flags": []
}

Check possession, consent and suppressions separately. One answered email verdict is billable.

Explore email validation ↗

Select an operation for its supported setup. These fixed examples make no requests.

LOOKUP / EVIDENCE FOR YOUR NEXT STEP

Choose by the decision.

Request only evidence you can use. A paid result can be negative or unresolved.

Choose a phone route.

Use network and coarse line type; request any of six optional properties only if they change your application decision. Confirm coverage and handle a missing answer.

Phone number lookup API ↗

Assess one address.

Use result and integer confidence together. A typo is a suggestion for the customer; a neutral or future verdict needs an explicit policy. Check one email address per request.

Email validation API ↗

Check possession separately.

Quality, consent and identity answer different questions. Use a supported code flow when the pending action needs proof of access to the destination.

Explore Verification API ↗
BIRD LOOKUPEvidence with its limits.
DOCUMENTED OPERATING BEHAVIOR

An answer.
A deliberate next step.

The maintained Lookup guides distinguish the baseline, independently answered properties and one email verdict. An unavailable property can leave the baseline useful; a negative answered verdict can still be billed.

Read the maintained Lookup guide ↗Sources checked 18 September 2026. Synthetic examples demonstrate interpretation, not measured accuracy, supplier coverage or a live customer result. Confirm current account access before launch.
LEARN / BUILD / OPERATE

The next useful step.

Explore recipient intelligence ↗
YOUR NEXT STEP

Put the evidence to work.

Start now opens phone Lookup setup. Choose email below for the single-address path. Confirm current access, wallet funding and the decision policy before a paid query.

Phone setup ↗ · Email setup ↗ · Current published rates ↗ · Lookup questions ↗ · Estimate answered units ↗

Working with an email address?

BIRD LOOKUP

A clearer signal.
A useful next step.

Choose phone or email ↗

Start with one channel.
Add the others when you're ready.

A test API key is yours immediately. Production unlocks when you add a payment method and verify a sender.

Read docs
Using Claude Code, Cursor, or Codex? Copy a setup prompt and your agent installs the Bird CLI and skills for you. Pick yours:
Cursor