Accept
Declared by 253 providers across 6590 published specification files in the APIs.io network.
Spelled 2 ways
HTTP field names are case-insensitive (RFC 9110 §5.1), so every spelling below is the same header on the wire. A contract is not the wire: generated clients key off the string, and a developer reading two of these sees two different headers.
Acceptaccept
The registry
| Status | permanent |
|---|---|
| Reference | RFC 9110, Section 12.5.1: HTTP Semantics |
Providers declaring it (253)
8x8 aarons abnormal acceldata adobe-launch adobe-suite adp adready-cpxi aemo aeris aeropay ai21-labs aimlapi airbus-oneatlas airflow airtm akamai alianza altr amazon-bedrock amazon-codeguru-profiler amazon-medialive amazon-nova anew ankorstore apache-couchdb api-blueprint apicontext artifactory athenahealth barclays bazaarvoice benzinga bigcommerce bigpanda birdeye bitly booking-com boxc brandfolder bud-co bynder cadasto careacademy cash-app cashfree cdisc cdk-global cerebrium chaitin cisco-ise citi clarivate cloudquery cms-gov cobee commonwealth-bank complyadvantage conga conjur continuous-delivery-foundation convelio copper-co crystal-reports cvent-social-tables dad-jokes deliverect democracy-works deutsche-boerse digital-ocean dnv dow-jones drupal druva dsv dtn dwolla dyspatch ebay eclipse ehrbase elk-stack elsevier engineering-platform enphase etsi expedia-group factset fal-ai fireworks-ai flexa form3 franklin-resources genlogs gingr github gluu goharbor gonitro google gotowebinar gracenote helidon here hitchpin hugging-face-transformers humanitec ibm-translate imf influxdata influxdb intercom international-business-machines itsacheckmate jaggaer jasper jeeng jefferson-health jp-morgan-chase just-eat kadence keycorp koin kontaktio kore-wireless koyeb la-poste-groupe langchain langsmith lichess lightspeed lightspeed-pos lucid lucidya-ltd lufthansa mediamath microsoft-azure monetizenow moonshot-ai moveworks mx-technologies nedap newstore nexla nexthink nhs-digital nhs-england novopayment ocient odata okta on24 open-liberty openehr optimizely oracle-hospitality orderful pagerduty palo-alto-networks partnerize pipedream plansource polysign postman power-query propertyme punchh pypi qliksense rainforest-qa reliance-jio render replicate rhombus-systems rillet rocket-lawyer sageox salesforce salesloft sanctions-io sap-bi-tools sarj-ai-developer-api securonix sendcloud sendgrid sentinel-hub site24x7 sk-telecom smallstep snowflake snyk sparql speakeasy speakeasy-api speechify spiffe splunk-observability spp spruceid stellaconnect sterling-check streamelements super-payments svn syniverse syntage talentlms telnyx temple-health tesslio the-climate-corporation thoughtspot tietoevry timecamp tradeshift tradeverifyd truework tyro uclouvain university-of-chicago university-of-warwick university-of-washington university-of-wisconsin-madison uploadcare upwind us-bancorp userpilot va-gov validere vayana-network venafi vendasta verdigris-technologies viator visa vitagroup vital-io vsco vtex walmart wandb weavr websphere weights-and-biases wellsaid wikipedia wise workramp worldcat worldpay wso2 yoobic zuora
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All headers Content Negotiation Guidance on headers.apievangelist.com
Work with this as data
Every header here is available over the APIs.io API and to AI agents over MCP. HTTP Headers is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.