RFX docs

check_access

L3. Status of your access request for a vendor: not_requested | pending | approved | denied.

L3 A buyer token (Authorization: Bearer)

Arguments

NameTypeRequiredDescription
vendorstringyesVendor slug

Call it

curl -X POST https://rfx.market/api/check_access \
  -H 'content-type: application/json' \
  -H 'authorization: Bearer <buyer_token>' \
  -d '{"vendor":"…"}'

Over MCP: tools/call with name: "check_access" and the same arguments.