Build a rule

The filtered stream endpoints deliver Posts that match a set of rules applied to the stream. Reference for the X API v2 standard tier covering integrate.

The filtered stream endpoints deliver Posts that match a set of rules applied to the stream. Rules are made up of operators that match on a variety of Post attributes.

Multiple rules can be applied using the POST /tweets/search/stream/rules endpoint. Once you’ve added rules and connected using GET /tweets/search/stream, only Posts matching your rules will be delivered. You do not need to disconnect to add or remove rules.

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Rule limitations

Limits on the number of rules depend on your access level. See the filtered stream introduction for specific limits.

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Operator types: standalone and conjunction-required

Standalone operators can be used alone or together with any other operators (including those that require conjunction).

For example, this rule works because #hashtag is a standalone operator:

#xapiv2

Conjunction-required operators cannot be used by themselves in a rule; they can only be used when at least one standalone operator is included. This is because using these operators alone would match an extremely high volume of Posts.

For example, the following rules are not supported since they contain only conjunction-required operators:

has:media

has:links OR is:retweet

If we add a standalone operator, such as the phrase "X data", the rule works properly:

"X data" has:mentions (has:media OR has:links)

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Boolean operators and grouping

String together multiple operators using these tools:

Operator	Description	Example
AND (space)	Posts must match both conditions	snow day #NoSchool matches Posts with “snow” AND “day” AND #NoSchool
OR	Posts must match either condition	grumpy OR cat OR #meme matches Posts with “grumpy” OR “cat” OR #meme
NOT (dash)	Exclude Posts matching this condition	cat #meme -grumpy matches Posts with “cat” and #meme but NOT “grumpy”
Grouping (parentheses)	Group operators together	(grumpy cat) OR (#meme has:images) matches either group

A note on negations

• All operators can be negated except for sample:
• The operator -is:nullcast must always be negated
• Negated operators cannot be used alone
• Do not negate grouped operators. Instead of skiing -(snow OR day OR noschool), use skiing -snow -day -noschool

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Order of operations

When combining AND and OR:

1. Operators connected by AND logic are combined first
2. Then, operators connected with OR logic are applied

Examples:

Query	Evaluated as
apple OR iphone ipad	apple OR (iphone ipad)
ipad iphone OR android	(iphone ipad) OR android

To eliminate uncertainty, use parentheses:

(apple OR iphone) ipad

iphone (ipad OR android)

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Punctuation, diacritics, and case sensitivity

Diacritics: Filtered stream rules with accents only match Posts that also include the accent. For example, diacrítica matches diacrítica but not diacritica.

Case sensitivity: All operators are case-insensitive. The rule cat matches cat, CAT, and Cat.

Search Posts behaves differently

When building search queries, keywords with accents match Posts both with and without the accents. For example, Diacrítica matches both Diacrítica and Diacritica.

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Quote Tweet matching

When using filtered stream, operators match on both the Quote Tweet’s content and the content from the original Post that was quoted.

Search Posts behaves differently—it only matches on the Quote Tweet’s content, not the original Post.

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Specificity and efficiency

Using broad operators like a single keyword or hashtag is not recommended—it will match a massive volume of Posts and quickly consume your connection.

Tips for building effective rules:

1. Start specific, then broaden — Create targeted rules that return relevant results
2. Use multiple operators — Combine operators to narrow results
3. Watch your character count — The entire rule string counts toward the limit

Example progression:

# Too broad - 200,000+ Posts per day
happy

# Better - adds language filter and exclusions
(happy OR happiness) lang:en -birthday -is:retweet

# Even better - 59 characters, more specific
(happy OR happiness) place_country:GB -birthday -is:retweet

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Iteratively building a rule

Step 1: Start with a basic rule

happy OR happiness

Step 2: Test and narrow based on results

We noticed Posts in many languages. Add a language filter:

(happy OR happiness) lang:en

We’re getting birthday wishes. Exclude them and Retweets:

(happy OR happiness) lang:en -birthday -is:retweet

Step 3: Broaden for better coverage

We want to capture more sentiment. Add related keywords:

(happy OR happiness OR excited OR elated) lang:en -birthday -is:retweet

Step 4: Adjust for trends

Holiday Posts are appearing. Exclude them:

(happy OR happiness OR excited OR elated) lang:en -birthday -is:retweet -holidays

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Adding and removing rules

Use POST /2/tweets/search/stream/rules to add or remove rules.

Adding rules

Submit an add JSON body with the value (the rule) and optional tag (to identify matching Posts):

curl -X POST "https://api.x.com/2/tweets/search/stream/rules" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "add": [
      {"value": "cat has:media", "tag": "cats with media"},
      {"value": "cat has:media -grumpy", "tag": "happy cats with media"},
      {"value": "meme", "tag": "funny things"},
      {"value": "meme has:images"}
    ]
  }'

Removing rules

Submit a delete JSON body with the rule IDs to remove:

curl -X POST "https://api.x.com/2/tweets/search/stream/rules" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "delete": {
      "ids": [
        "1165037377523306498",
        "1165037377523306499"
      ]
    }
  }'

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Rule examples

Tracking a natural disaster

Match Posts from weather agencies about Hurricane Harvey:

{
  "value": "-is:retweet has:geo (from:NWSNHC OR from:NHC_Atlantic OR from:NWSHouston OR from:NWSSanAntonio OR from:USGS_TexasRain OR from:USGS_TexasFlood OR from:JeffLindner1)",
  "tag": "Hurricane Harvey - weather agencies with geo"
}

Sentiment analysis for #nowplaying

Positive sentiment:

{
  "value": "#nowplaying (happy OR exciting OR excited OR favorite OR fav OR amazing OR lovely OR incredible) (place_country:US OR place_country:MX OR place_country:CA) -horrible -worst -sucks -bad -disappointing",
  "tag": "#nowplaying positive"
}

Negative sentiment:

{
  "value": "#nowplaying (horrible OR worst OR sucks OR bad OR disappointing) (place_country:US OR place_country:MX OR place_country:CA) -happy -exciting -excited -favorite -fav -amazing -lovely -incredible",
  "tag": "#nowplaying negative"
}

Using Post annotations

Find Japanese Posts about pets (not cats) with images using the context: operator:

First, use Post lookup with tweet.fields=context_annotations to identify domain.entity IDs:

• Cats: domain 66, entity 852262932607926273
• Pets: domain 65, entity 852262932607926273

{
  "value": "context:65.852262932607926273 -context:66.852262932607926273 -is:retweet has:images lang:ja",
  "tag": "Japanese pets with images - no cats"
}

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Next steps

Operators reference

Complete list of available operators

Filtered stream quickstart

Connect to your stream

Sample code

Code examples in multiple languages