# usefulapi (usefulapi.io) Hosts MCP servers that let Claude, Cursor and other AI clients read and act on billing, payments and finance tools. - Atlas card: https://inite.ai/en/atlas/usefulapi.io - Site: https://usefulapi.io - For: developers and finance teams connecting AI assistants like Claude or Cursor to billing and payment tools - Categories: dev - Use 0/100 ยท alive 100/100 ## Used for - look up customer invoices and payment records from an AI assistant - draft invoices and create contacts in accounting software - refund or void card charges through an MCP client ## Price - no price printed (read 2026-10-20 on https://usefulapi.io/#pricing) ## For developers - MCP server: io.usefulapi/17track (namespace; open on 2026-10-20, 9 tools) - MCP server: io.usefulapi/ably (namespace; open on 2026-10-20, 15 tools) - MCP server: io.usefulapi/abstract-api (namespace; open on 2026-10-20, 14 tools) - MCP server: io.usefulapi/accelo (namespace) - MCP server: io.usefulapi/accredible (namespace) - MCP server: io.usefulapi/acuity-scheduling (namespace) - MCP server: io.usefulapi/adafruit-io (namespace) - MCP server: io.usefulapi/addevent (namespace) - MCP server: io.usefulapi/airbrake (namespace) - MCP server: io.usefulapi/aircall (namespace) - MCP server: io.usefulapi/akute-health (namespace) - MCP server: io.usefulapi/all-quiet (namespace) - MCP server: io.usefulapi/amberflo (namespace) - MCP server: io.usefulapi/anvil (namespace) - MCP server: io.usefulapi/api2pdf (namespace) - MCP server: io.usefulapi/apiflash (namespace) - MCP server: io.usefulapi/apitemplate (namespace) - MCP server: io.usefulapi/apivideo (namespace) - MCP server: io.usefulapi/atera (namespace) - MCP server: io.usefulapi/autumn (namespace) - MCP server: io.usefulapi/bannerbear (namespace) - MCP server: io.usefulapi/basis-theory (namespace) - MCP server: io.usefulapi/beacon-crm (namespace) - MCP server: io.usefulapi/beds24 (namespace) - MCP server: io.usefulapi/benchmark-email (namespace) - MCP server: io.usefulapi/bettermode (namespace) - MCP server: io.usefulapi/betterstack (namespace) - MCP server: io.usefulapi/bill4time (namespace) - MCP server: io.usefulapi/billomat (namespace) - MCP server: io.usefulapi/billy (namespace) - MCP server: io.usefulapi/bird (namespace) - MCP server: io.usefulapi/bloomerang (namespace) - MCP server: io.usefulapi/bookeo (namespace) - MCP server: io.usefulapi/booqable (namespace) - MCP server: io.usefulapi/boulevard (namespace) - MCP server: io.usefulapi/braintree (namespace) - MCP server: io.usefulapi/breathe-hr (namespace) - MCP server: io.usefulapi/breeze-chms (namespace) - MCP server: io.usefulapi/buildium (namespace) - MCP server: io.usefulapi/bulksms (namespace) - MCP server: io.usefulapi/bunny-net (namespace) - MCP server: io.usefulapi/buttondown (namespace) - MCP server: io.usefulapi/canvas-medical (namespace) - MCP server: io.usefulapi/cashctrl (namespace) - MCP server: io.usefulapi/castle (namespace) - MCP server: io.usefulapi/census (namespace) - MCP server: io.usefulapi/chargebee (namespace) - MCP server: io.usefulapi/chargeover (namespace) - MCP server: io.usefulapi/checkfront (namespace) - MCP server: io.usefulapi/checkly (namespace) - MCP server: io.usefulapi/checkoutcom (namespace) - MCP server: io.usefulapi/churchsuite (namespace) - MCP server: io.usefulapi/cin7-core (namespace) - MCP server: io.usefulapi/civo (namespace) - MCP server: io.usefulapi/classmarker (namespace) - MCP server: io.usefulapi/clickup (namespace) - MCP server: io.usefulapi/clinicaltrialsgov (namespace) - MCP server: io.usefulapi/cliniko (namespace) - MCP server: io.usefulapi/clockify (namespace) - MCP server: io.usefulapi/codat (namespace) - MCP server: io.usefulapi/codecov (namespace) - MCP server: io.usefulapi/codemagic (namespace) - MCP server: io.usefulapi/connecteam (namespace) - MCP server: io.usefulapi/copper (namespace) - MCP server: io.usefulapi/craftmypdf (namespace) - MCP server: io.usefulapi/cronitor (namespace) - MCP server: io.usefulapi/cronofy (namespace) - MCP server: io.usefulapi/crowdin (namespace) - MCP server: io.usefulapi/current-rms (namespace) - MCP server: io.usefulapi/customerio (namespace) - MCP server: io.usefulapi/cuttly (namespace) - MCP server: io.usefulapi/d7-networks (namespace) - MCP server: io.usefulapi/dailymed (namespace) - MCP server: io.usefulapi/dead-mans-snitch (namespace) - MCP server: io.usefulapi/deepinfra (namespace) - MCP server: io.usefulapi/depot (namespace) - MCP server: io.usefulapi/deputy (namespace) - MCP server: io.usefulapi/desec (namespace) - MCP server: io.usefulapi/deskpro (namespace) - MCP server: io.usefulapi/dnsimple (namespace) - MCP server: io.usefulapi/docparser (namespace) - MCP server: io.usefulapi/docraptor (namespace) - MCP server: io.usefulapi/documenso (namespace) - MCP server: io.usefulapi/drchrono (namespace) - MCP server: io.usefulapi/dropbox-sign (namespace) - MCP server: io.usefulapi/drupal (namespace) - MCP server: io.usefulapi/dub (namespace) - MCP server: io.usefulapi/e-boekhouden (namespace) - MCP server: io.usefulapi/easypost (namespace) - MCP server: io.usefulapi/ecwid (namespace) - MCP server: io.usefulapi/edesk (namespace) - MCP server: io.usefulapi/elation-health (namespace) - MCP server: io.usefulapi/elvanto (namespace) - MCP server: io.usefulapi/emailable (namespace) - MCP server: io.usefulapi/emailoctopus (namespace) - MCP server: io.usefulapi/enchant (namespace) - MCP server: io.usefulapi/encharge (namespace) - MCP server: io.usefulapi/estuary-flow (namespace) - MCP server: io.usefulapi/eventbrite (namespace) - MCP server: io.usefulapi/eventzilla (namespace) - MCP server: io.usefulapi/exoscale (namespace) - MCP server: io.usefulapi/falai (namespace) - MCP server: io.usefulapi/fathom-analytics (namespace) - MCP server: io.usefulapi/fieldwire (namespace) - MCP server: io.usefulapi/fillout (namespace) - MCP server: io.usefulapi/finale-inventory (namespace) - MCP server: io.usefulapi/finnhub (namespace) - MCP server: io.usefulapi/firetext (namespace) - MCP server: io.usefulapi/fireworks (namespace) - MCP server: io.usefulapi/fitbit (namespace) - MCP server: io.usefulapi/fleetio (namespace) - MCP server: io.usefulapi/folk (namespace) - MCP server: io.usefulapi/follow-up-boss (namespace) - MCP server: io.usefulapi/formbricks (namespace) - MCP server: io.usefulapi/formstack (namespace) - MCP server: io.usefulapi/foxyio (namespace) - MCP server: io.usefulapi/freeagent (namespace) - MCP server: io.usefulapi/freshdesk (namespace) - MCP server: io.usefulapi/gelato (namespace) - MCP server: io.usefulapi/geoapify (namespace) - MCP server: io.usefulapi/getresponse (namespace) - MCP server: io.usefulapi/gift-up (namespace) - MCP server: io.usefulapi/gingr (namespace) - MCP server: io.usefulapi/gitbook (namespace) - MCP server: io.usefulapi/goteamup (namespace) - MCP server: io.usefulapi/groove-hq (namespace) - MCP server: io.usefulapi/gumroad (namespace) - MCP server: io.usefulapi/happyfox (namespace) - MCP server: io.usefulapi/harvest (namespace) - MCP server: io.usefulapi/health-gorilla (namespace) - MCP server: io.usefulapi/healthchecksio (namespace) - MCP server: io.usefulapi/healthie (namespace) - MCP server: io.usefulapi/helpcrunch (namespace) - MCP server: io.usefulapi/helpwise (namespace) - MCP server: io.usefulapi/hetzner-cloud (namespace) - MCP server: io.usefulapi/hint-health (namespace) - MCP server: io.usefulapi/homebase (namespace) - MCP server: io.usefulapi/homerun (namespace) - MCP server: io.usefulapi/hostaway (namespace) - MCP server: io.usefulapi/hostfully (namespace) - MCP server: io.usefulapi/housecall-pro (namespace) - MCP server: io.usefulapi/humanitix (namespace) - MCP server: io.usefulapi/hypertune (namespace) - MCP server: io.usefulapi/increase (namespace) - MCP server: io.usefulapi/infermedica (namespace) - MCP server: io.usefulapi/inngest (namespace) - MCP server: io.usefulapi/insightly (namespace) - MCP server: io.usefulapi/instatus (namespace) - MCP server: io.usefulapi/intakeq (namespace) - MCP server: io.usefulapi/inventory-planner (namespace) - MCP server: io.usefulapi/invoice-ninja (namespace) - MCP server: io.usefulapi/invoiced (namespace) - MCP server: io.usefulapi/jobnimbus (namespace) - MCP server: io.usefulapi/kayako (namespace) - MCP server: io.usefulapi/keap (namespace) - MCP server: io.usefulapi/kickserv (namespace) - MCP server: io.usefulapi/kinde (namespace) - MCP server: io.usefulapi/kinsta (namespace) - MCP server: io.usefulapi/kisi (namespace) - MCP server: io.usefulapi/klippa-dochorizon (namespace) - MCP server: io.usefulapi/knack (namespace) - MCP server: io.usefulapi/knowledgeowl (namespace) - MCP server: io.usefulapi/lago (namespace) - MCP server: io.usefulapi/lambda-labs (namespace) - MCP server: io.usefulapi/laravel-forge (namespace) - MCP server: io.usefulapi/learnworlds (namespace) - MCP server: io.usefulapi/lemonsqueezy (namespace) - MCP server: io.usefulapi/less-annoying-crm (namespace) - MCP server: io.usefulapi/lessonspace (namespace) - MCP server: io.usefulapi/lexware-office (namespace) - MCP server: io.usefulapi/lightspeed-r-series (namespace) - MCP server: io.usefulapi/linear (namespace) - MCP server: io.usefulapi/little-green-light (namespace) - MCP server: io.usefulapi/lob (namespace) - MCP server: io.usefulapi/localazy (namespace) - MCP server: io.usefulapi/loops (namespace) - MCP server: io.usefulapi/loyverse (namespace) - MCP server: io.usefulapi/magicbell (namespace) - MCP server: io.usefulapi/mailbluster (namespace) - MCP server: io.usefulapi/mailchimp (namespace) - MCP server: io.usefulapi/mailerlite (namespace) - MCP server: io.usefulapi/maptiler (namespace) - MCP server: io.usefulapi/maxmind-minfraud (namespace) - MCP server: io.usefulapi/megaventory (namespace) - MCP server: io.usefulapi/memberful (namespace) - MCP server: io.usefulapi/mercoa (namespace) - MCP server: io.usefulapi/merit-aktiva (namespace) - MCP server: io.usefulapi/messente (namespace) - MCP server: io.usefulapi/metriport (namespace) - MCP server: io.usefulapi/mindbody (namespace) - MCP server: io.usefulapi/mindee (namespace) - MCP server: io.usefulapi/missive (namespace) - MCP server: io.usefulapi/mistral (namespace) - MCP server: io.usefulapi/mixpanel (namespace) - MCP server: io.usefulapi/modern-treasury (namespace) - MCP server: io.usefulapi/momence (namespace) - MCP server: io.usefulapi/moosend (namespace) - MCP server: io.usefulapi/neon-crm (namespace) - MCP server: io.usefulapi/nexhealth (namespace) - MCP server: io.usefulapi/nodeping (namespace) - MCP server: io.usefulapi/nomic-atlas (namespace) - MCP server: io.usefulapi/nookal (namespace) - MCP server: io.usefulapi/northflank (namespace) - MCP server: io.usefulapi/notifyre (namespace) - MCP server: io.usefulapi/nppes-npi-registry (namespace) - MCP server: io.usefulapi/ns1 (namespace) - MCP server: io.usefulapi/numeral (namespace) - MCP server: io.usefulapi/nylas (namespace) - MCP server: io.usefulapi/oblio (namespace) - MCP server: io.usefulapi/officernd (namespace) - MCP server: io.usefulapi/onfido (namespace) - MCP server: io.usefulapi/openfda (namespace) - MCP server: io.usefulapi/openphone (namespace) - MCP server: io.usefulapi/optimoroute (namespace) - MCP server: io.usefulapi/orb (namespace) - MCP server: io.usefulapi/ordoro (namespace) - MCP server: io.usefulapi/oura (namespace) - MCP server: io.usefulapi/ownerrez (namespace) - MCP server: io.usefulapi/packagecloud (namespace) - MCP server: io.usefulapi/paperform (namespace) - MCP server: io.usefulapi/parabol (namespace) - MCP server: io.usefulapi/particlehealth (namespace) - MCP server: io.usefulapi/paymo (namespace) - MCP server: io.usefulapi/peopledatalabs (namespace) - MCP server: io.usefulapi/persona (namespace) - MCP server: io.usefulapi/photon-health (namespace) - MCP server: io.usefulapi/pipedrive (namespace) - MCP server: io.usefulapi/pipeline-crm (namespace) - MCP server: io.usefulapi/pirsch (namespace) - MCP server: io.usefulapi/plausible-analytics (namespace) - MCP server: io.usefulapi/polar-sh (namespace) - MCP server: io.usefulapi/portkey (namespace) - MCP server: io.usefulapi/practice-better (namespace) - MCP server: io.usefulapi/printful (namespace) - MCP server: io.usefulapi/printify (namespace) - MCP server: io.usefulapi/propstack (namespace) - MCP server: io.usefulapi/qgiv (namespace) - MCP server: io.usefulapi/quaderno (namespace) - MCP server: io.usefulapi/raisely (namespace) - MCP server: io.usefulapi/rapidmail (namespace) - MCP server: io.usefulapi/re-amaze (namespace) - MCP server: io.usefulapi/recharge (namespace) - MCP server: io.usefulapi/reclaimai (namespace) - MCP server: io.usefulapi/recruitee (namespace) - MCP server: io.usefulapi/recurly (namespace) - MCP server: io.usefulapi/release-radar (namespace) - MCP server: io.usefulapi/rev-ai (namespace) - MCP server: io.usefulapi/reviews-io (namespace) - MCP server: io.usefulapi/rewardful (namespace) - MCP server: io.usefulapi/rotacloud (namespace) - MCP server: io.usefulapi/runcloud (namespace) - MCP server: io.usefulapi/rxnorm (namespace) - MCP server: io.usefulapi/savvycal (namespace) - MCP server: io.usefulapi/scalingo (namespace) - MCP server: io.usefulapi/sendbird (namespace) - MCP server: io.usefulapi/sendgrid (namespace) - MCP server: io.usefulapi/sendlane (namespace) - MCP server: io.usefulapi/sevdesk (namespace) - MCP server: io.usefulapi/shiftbase (namespace) - MCP server: io.usefulapi/shipday (namespace) - MCP server: io.usefulapi/shopmonkey (namespace) - MCP server: io.usefulapi/signl4 (namespace) - MCP server: io.usefulapi/simple-analytics (namespace) - MCP server: io.usefulapi/simpletexting (namespace) - MCP server: io.usefulapi/slicktext (namespace) - MCP server: io.usefulapi/smartaccounts (namespace) - MCP server: io.usefulapi/smartbill (namespace) - MCP server: io.usefulapi/smile-io (namespace) - MCP server: io.usefulapi/smoobu (namespace) - MCP server: io.usefulapi/smsmode (namespace) - MCP server: io.usefulapi/sortly (namespace) - MCP server: io.usefulapi/speechmatics (namespace) - MCP server: io.usefulapi/spikesh (namespace) - MCP server: io.usefulapi/spinupwp (namespace) - MCP server: io.usefulapi/spoke-dispatch (namespace) - MCP server: io.usefulapi/spruce-health (namespace) - MCP server: io.usefulapi/squadcast (namespace) - MCP server: io.usefulapi/starshipit (namespace) - MCP server: io.usefulapi/status-io (namespace) - MCP server: io.usefulapi/statuscake (namespace) - MCP server: io.usefulapi/statuspal (namespace) - MCP server: io.usefulapi/stream (namespace) - MCP server: io.usefulapi/superfaktura (namespace) - MCP server: io.usefulapi/supportbee (namespace) - MCP server: io.usefulapi/svix (namespace) - MCP server: io.usefulapi/swell (namespace) - MCP server: io.usefulapi/synchroteam (namespace) - MCP server: io.usefulapi/szamlazz-hu (namespace) - MCP server: io.usefulapi/taggun (namespace) - MCP server: io.usefulapi/tailscale (namespace) - MCP server: io.usefulapi/talentlms (namespace) - MCP server: io.usefulapi/teachworks (namespace) - MCP server: io.usefulapi/teamgate (namespace) - MCP server: io.usefulapi/teamup-calendar (namespace) - MCP server: io.usefulapi/text-em-all (namespace) - MCP server: io.usefulapi/textline (namespace) - MCP server: io.usefulapi/tick (namespace) - MCP server: io.usefulapi/tinypng (namespace) - MCP server: io.usefulapi/tinyurl (namespace) - MCP server: io.usefulapi/tito (namespace) - MCP server: io.usefulapi/together-ai (namespace) - MCP server: io.usefulapi/tokeet (namespace) - MCP server: io.usefulapi/tookan (namespace) - MCP server: io.usefulapi/track-pod (namespace) - MCP server: io.usefulapi/trackingmore (namespace) - MCP server: io.usefulapi/trengo (namespace) - MCP server: io.usefulapi/trigger-dev (namespace) - MCP server: io.usefulapi/twenty (namespace) - MCP server: io.usefulapi/unkey (namespace) - MCP server: io.usefulapi/unleashed-software (namespace) - MCP server: io.usefulapi/upcloud (namespace) - MCP server: io.usefulapi/updown-io (namespace) - MCP server: io.usefulapi/uploadcare (namespace) - MCP server: io.usefulapi/uservoice (namespace) - MCP server: io.usefulapi/veeqo (namespace) - MCP server: io.usefulapi/virtuous-crm (namespace) - MCP server: io.usefulapi/vital (namespace) - MCP server: io.usefulapi/voodoo-sms (namespace) - MCP server: io.usefulapi/vyfakturuj (namespace) - MCP server: io.usefulapi/waitwhile (namespace) - MCP server: io.usefulapi/wakatime (namespace) - MCP server: io.usefulapi/weblate (namespace) - MCP server: io.usefulapi/whatconverts (namespace) - MCP server: io.usefulapi/when-i-work (namespace) - MCP server: io.usefulapi/whoop (namespace) - MCP server: io.usefulapi/wild-apricot (namespace) - MCP server: io.usefulapi/wincher (namespace) - MCP server: io.usefulapi/workiz (namespace) - MCP server: io.usefulapi/wufoo (namespace) - MCP server: io.usefulapi/youcanbookme (namespace) - MCP server: io.usefulapi/zammad (namespace) - MCP server: io.usefulapi/zendesk (namespace) - MCP server: io.usefulapi/zenserp (namespace) - Read 2026-10-20 ## MCP server, measured daily Server: https://17track.usefulapi.io/mcp, checked every day since 2026-10-20 (2 checks). - Answered: measuring, 2 daily checks so far - Median first answer: 339 ms - Sign-in: none - Context its tool definitions take: about 2640 tokens (9 tools) - Tool definitions: A, 94/100 - Failing "params_described": 3 of 9 tools - Method: https://inite.ai/en/atlas/mcp/report ## Your data - Certifications stated: gdpr - Training on your data: no (https://usefulapi.io/privacy) - Read 2026-10-20 --- Source: INITE Atlas, https://inite.ai/en/atlas/usefulapi.io. JSON: https://inite.ai/api/atlas/usefulapi.io. MCP: https://inite.ai/api/mcp (atlas_lookup).