Dev tools MCP servers

14901 servers, 13041 answering our latest check. Online first.

Openbeautyfacts

Open Beauty Facts MCP — Open Beauty Facts API (free, no auth, keyless).
gateway.pipeworx.io/openbeautyfacts/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SP: Cupom Fiscal Eletrônico (SAT)

SEFAZ SP: Cupom Fiscal Eletrônico (SAT), official-source lookup. Platform-hosted, pay per query with
api.mcp.ai/p_sefaz_sp_cfe
● Online, checked 131 min ago

by mcp-dir (GitHub)

XML plist dict count, body discarded

XML plist dict count, body discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/plist-xml-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Openaq

OpenAQ MCP — global air-quality measurements via the OpenAQ v3 API.
gateway.pipeworx.io/openaq/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SP: Certidão Negativa de Débitos

SEFAZ SP: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay per query with
api.mcp.ai/p_sefaz_sp_certidao_debitos
● Online, checked 131 min ago

by mcp-dir (GitHub)

Sentence-case first-cap shape, value discarded

Sentence-case first-cap shape, value discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/sentence-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Openalex

OpenAlex MCP — wraps the OpenAlex API (scholarly works, free, no auth)
gateway.pipeworx.io/openalex/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SP: Cadin

SEFAZ SP: Cadin, official-source lookup. Platform-hosted, pay per query with prepaid credit.
api.mcp.ai/p_sefaz_sp_cadin
● Online, checked 131 min ago

by mcp-dir (GitHub)

email-ish local@host shape, value discarded

email-ish local@host shape, value discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/emailish-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Open Meteo

Open-Meteo MCP — weather forecast + historical reanalysis + sister APIs
gateway.pipeworx.io/open-meteo/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SE: NFC-e

SEFAZ SE: NFC-e, official-source lookup. Platform-hosted, pay per query with prepaid credit.
api.mcp.ai/p_sefaz_se_nfce
● Online, checked 131 min ago

by mcp-dir (GitHub)

hashtag token charset, value discarded

hashtag token charset, value discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/hashtag-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Open Contracting

Open Contracting MCP — international public procurement: government tenders
gateway.pipeworx.io/open-contracting/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SE: Certidão Negativa de Débitos

SEFAZ SE: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay per query with
api.mcp.ai/p_sefaz_se_certidao_debitos
● Online, checked 131 min ago

by mcp-dir (GitHub)

Days to pad current UTC month to 31

Days to pad current UTC month to 31
agent-observatory-sensor.nolimit-observatory.workers.dev/s/month-pad/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Ooni

OONI MCP — internet censorship & website reachability measurements from the
gateway.pipeworx.io/ooni/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SC: NFE

SEFAZ SC: NFE, official-source lookup. Platform-hosted, pay per query with prepaid credit.
api.mcp.ai/p_sefaz_sc_nfe
● Online, checked 131 min ago

by mcp-dir (GitHub)

Fletcher-32 hex length, input discarded

Fletcher-32 hex length, input discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/fletcher-len/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Onthisday

On This Day MCP — wraps byabbe.se/on-this-day (free, no auth)
gateway.pipeworx.io/onthisday/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SC: NFC-e

SEFAZ SC: NFC-e, official-source lookup. Platform-hosted, pay per query with prepaid credit.
api.mcp.ai/p_sefaz_sc_nfce
● Online, checked 131 min ago

by mcp-dir (GitHub)

MurmurHash3 hex length, input discarded

MurmurHash3 hex length, input discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/murmur3-len/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Onet

O*NET MCP — wraps the O*NET Web Services (US DOL) occupation taxonomy
gateway.pipeworx.io/onet/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SC: Dívida Ativa

SEFAZ SC: Dívida Ativa, official-source lookup. Platform-hosted, pay per query with prepaid credit.
api.mcp.ai/p_sefaz_sc_divida_ativa
● Online, checked 131 min ago

by mcp-dir (GitHub)

Range bytes start-end shape, value discarded

Range bytes start-end shape, value discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/range-bytes/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Odds Api

The Odds API MCP — sportsbook odds across 70+ books, 30+ leagues
gateway.pipeworx.io/odds-api/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SC DEC: Caixa Postal

SEFAZ SC DEC: Caixa Postal, official-source lookup. Platform-hosted, pay per query with prepaid cred
api.mcp.ai/p_sefaz_sc_dec_caixa_postal
● Online, checked 131 min ago

by mcp-dir (GitHub)

If-Unmodified-Since HTTP-date, value discarded

If-Unmodified-Since HTTP-date, value discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/if-unmod-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Octopus Energy

Octopus Energy public API MCP — UK energy tariffs & products.
gateway.pipeworx.io/octopus-energy/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ SC: Certidão Negativa de Débitos

SEFAZ SC: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay per query with
api.mcp.ai/p_sefaz_sc_certidao_debitos
● Online, checked 131 min ago

by mcp-dir (GitHub)

If-Match etag list count, value discarded

If-Match etag list count, value discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/if-match-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Octopart

Octopart MCP — electronic component search via the Nexar Supply API (GraphQL)
gateway.pipeworx.io/octopart/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RS: NFC-e (SVRS)

SEFAZ RS: NFC-e (SVRS), official-source lookup. Platform-hosted, pay per query with prepaid credit.
api.mcp.ai/p_sefaz_rs_nfce_svrs
● Online, checked 131 min ago

by mcp-dir (GitHub)

Sonyflake digit shape, value discarded

Sonyflake digit shape, value discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/sonyflake-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Ocrspace

OCR.space MCP — wraps the OCR.space API (ocr.space) for image/PDF → text OCR.
gateway.pipeworx.io/ocrspace/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RS: NFC-e Resumida

SEFAZ RS: NFC-e Resumida, official-source lookup. Platform-hosted, pay per query with prepaid credit
api.mcp.ai/p_sefaz_rs_nfce_resumida
● Online, checked 131 min ago

by mcp-dir (GitHub)

Snowflake 63-bit digit shape, value discarded

Snowflake 63-bit digit shape, value discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/snowflake-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Nyt

NYT MCP — wraps The New York Times Developer APIs (developer.nytimes.com)
gateway.pipeworx.io/nyt/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RS: Débitos Veiculares

SEFAZ RS: Debts Veiculares, official-source lookup. Platform-hosted, pay per query with prepaid cred
api.mcp.ai/p_sefaz_rs_debitos
● Online, checked 131 min ago

by mcp-dir (GitHub)

Mongo ObjectId 24-hex, value discarded

Mongo ObjectId 24-hex, value discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/objectid-hex/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Nyfed Markets

New York Fed Markets Data APIs — markets.newyorkfed.org, keyless JSON, no
gateway.pipeworx.io/nyfed-markets/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RS: Certidão Negativa de Débitos

SEFAZ RS: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay per query with
api.mcp.ai/p_sefaz_rs_certidao_debitos
● Online, checked 131 min ago

by mcp-dir (GitHub)

mmHg to kilopascals, number discarded

mmHg to kilopascals, number discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/mmhg-kpa/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Nyc Animals

NYC Animals MCP — dog licensing and dog-bite records for New York City
gateway.pipeworx.io/nyc-animals/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RS: CADIN e CFIL

SEFAZ RS: CADIN e CFIL, official-source lookup. Platform-hosted, pay per query with prepaid credit.
api.mcp.ai/p_sefaz_rs_cadin_cfil
● Online, checked 131 min ago

by mcp-dir (GitHub)

inHg to kilopascals, number discarded

inHg to kilopascals, number discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/inhg-kpa/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Ny Procurement

New York State Procurement MCP — State contract awards & procurement (keyless).
gateway.pipeworx.io/ny-procurement/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RR: NFC-e

SEFAZ RR: NFC-e, official-source lookup. Platform-hosted, pay per query with prepaid credit.
api.mcp.ai/p_sefaz_rr_nfce
● Online, checked 131 min ago

by mcp-dir (GitHub)

Tablespoons to milliliters, number discarded

Tablespoons to milliliters, number discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/tbsp-ml/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Ny Authority Debt

ny-authority-debt — New York public authority debt issuance.
gateway.pipeworx.io/ny-authority-debt/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RR: Certidão Negativa de Débitos

SEFAZ RR: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay per query with
api.mcp.ai/p_sefaz_rr_certidao_debitos
● Online, checked 131 min ago

by mcp-dir (GitHub)

JSON type-tag count, values discarded

JSON type-tag count, values discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/json-type-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Numverify

Numverify MCP — wraps the Numverify phone-number validation API (APILayer)
gateway.pipeworx.io/numverify/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RO: NFC-e Resumida

SEFAZ RO: NFC-e Resumida, official-source lookup. Platform-hosted, pay per query with prepaid credit
api.mcp.ai/p_sefaz_ro_nfce_resumida
● Online, checked 131 min ago

by mcp-dir (GitHub)

YAML document-start count, body discarded

YAML document-start count, body discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/yaml-doc-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Nsi Bg

Bulgarian National Statistical Institute (НСИ / NSI) — Open Data API.
gateway.pipeworx.io/nsi-bg/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RO: NFC-e Completa

SEFAZ RO: NFC-e Completa, official-source lookup. Platform-hosted, pay per query with prepaid credit
api.mcp.ai/p_sefaz_ro_nfce_completa
● Online, checked 131 min ago

by mcp-dir (GitHub)

XML declaration shape, markup discarded

XML declaration shape, markup discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/xml-decl-ok/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

Nsf Awards

NSF Awards MCP — National Science Foundation award database (free, no auth)
gateway.pipeworx.io/nsf-awards/mcp
● Online, checked 130 min ago

by pipeworx-io (GitHub)

SEFAZ RO: IPVA

SEFAZ RO: IPVA, official-source lookup. Platform-hosted, pay per query with prepaid credit.
api.mcp.ai/p_sefaz_ro_ipva
● Online, checked 131 min ago

by mcp-dir (GitHub)

grapheme-cluster count, text discarded

grapheme-cluster count, text discarded
agent-observatory-sensor.nolimit-observatory.workers.dev/s/grapheme-n/mcp
● Online, checked 130 min ago

by sadri-dridi (GitHub)

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